The energy density at the center of a circular loop of wire carrying a 23.0 a current if the radius of the loop is 28.0 cm will be 1.06 * [tex]10^{-3}[/tex] J / [tex]m^{3}[/tex]
Energy density is defined as the amount of energy accumulated in a system per unit volume. In the case of electrical energy. Electrical energy density = permittivity* Electric field squared/2 mu0
When an electric current is passed through a current-carrying circular wire loop, the magnetic field lines are generated in a circular pattern around the arms of the coil while the magnetic field lines are straight at the center of the loop
The magnetic field strength at the center of a circular loop is given by
B=(muo*I)/2R (at center of loop),
Energy density = [tex]B^{2}[/tex] / 2 (mu0)
= [tex]\frac{1}{2 (muo)}[/tex] * [tex](\frac{muo * I}{2R})^{2}[/tex] = [tex]\frac{muo * I^{2} }{8 * R^{2} }[/tex]
= [tex]\frac{4*3.14*10^{-7}*(23)^{2} }{8 * (0.28)^{2} }[/tex]
= 1.06 * [tex]10^{-3}[/tex] J / [tex]m^{3}[/tex]
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What magnitude net force is required to accelerate a 1200-kg car uniformly from 0 m/s to 27.0 m/s in ?
Magnitude of Net force Required to accelerate a 1200kg car uniformly from 0m/s to 27m/s in 10s is 3240N.
Force can be found out using the relation of Force, mass and acceleration.
The relation of Force, mass and acceleration is as follows:
∴ Force = Mass × Acceleration
⇒ Force = 1200kg × Acceleration
Given:
Mass = 1200kg
Final Velocity = 27m/s
Initial Velocity = 0m/s
time = 10s
Now, to find out the acceleration we can use the first equation of motion:
∴ Final Velocity = Initial Velocity + Acceleration × time
⇒ 27 = 0 + 10a
⇒ a = 2.7m/s²
Putting acceleration in the above mentioned equation,
∴ Force = 1200kg × Acceleration
⇒ Force = 1200kg × 2.7
⇒ Force = 3240N
Hence, the net force required to accelerate the car uniformly is 3240N.
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The answer is 3240 N.
Intial velocity [tex]$\mathrm{u}=0 \mathrm{~m} / \mathrm{s}$[/tex]
final velocity [tex]$\mathrm{v}=27 \mathrm{~m} / \mathrm{s}$[/tex]
time [tex]$t=10$[/tex] sec.
Newton's first equation of motion
[tex]$v=u+a t$[/tex], here a = acceleration
[tex]$\mathrm{so}_{0}=(v-u) / t$[/tex]
[tex]$a=(27.0-0) / 10$[/tex]
[tex]$a=2.7 \mathrm{~m} / \mathrm{sec}^{2}$[/tex]
Force [tex]$F=m a$[/tex]
Mass [tex]$\mathrm{m}=1200 \mathrm{~kg}$[/tex]
[tex]$F=1200 \times 2.7$[/tex]
[tex]$F=3240 N$[/tex]
What is acceleration?
Acceleration is the rate at which velocity varies over time, both in terms of speed and direction. A point or object travelling in a straight path is accelerated if it accelerates or decelerates.To learn more about Acceleration visit:
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You are approaching a police car at 68. 1 mph and the police car is approaching you at 94. 8 mph. Assume that the speed of sound is 700 mph. A. If the police car has a 1224 hz siren, what frequency do you hear? 1s.
We will hear the sound of siren of frequency 1553.4606 Hz.
What is Doppler Effect?
The apparent change in wave frequency brought on by the movement of a wave source is known as the Doppler effect. When the wave source is coming closer and when it is moving away, the perceived frequency changes. The Doppler effect explains why we hear a passing siren's sound changing in pitch.
according to Dopplers Effect,
[tex]f'=[\frac{v + v_{0} }{v - v_{s} } ]f[/tex]
[tex]f'= [\frac{700+68.1}{700-94.8} ]* 1224[/tex]
[tex]f'= 1553.4606 Hz[/tex]
the frequency would be 1553.4606 Hz.
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If a spaceship approaches you at 0. 5c, and a light on the spaceship is turned on pointing in your direction, how fast will the light be traveling when it reaches you?
The light will be travelling at its own speed 300,000 km/s which is the speed of the light.
Speed of light:One universal physical constant that is significant in many branches of physics is the speed of light in a vacuum, typically abbreviated as c. Its precise value is 299792458 meters per second or roughly 300000 kilometers per hour or 186000 miles per hour. The maximum speed at which common matter, energy, or any signal carrying information may move through space is c, according to the special theory of relativity.
Similar to how electromagnetic waves in wire cables move more slowly than c, light moves more slowly through transparent materials like glass or air. The refractive index n of a substance (n = c/v) is the ratio between c and the speed v at which light moves through it.
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Determine the shortest frequency of light required to remove an electron from a sample of ti metal if the binding energy of titanium is 3. 14 × 10^3 kj/mol
The shortest frequency of light required to remove an electron from a sample of ti metal if the binding energy of titanium is 3. 14 × [tex]10^{3}[/tex] kj/mol will be v = 0.47 * [tex]10^{37}[/tex] Hz
Binding energy, amount of energy required to separate a particle from a system of particles or to disperse all the particles of the system. Binding energy is especially applicable to subatomic particles in atomic nuclei, to electrons bound to nuclei in atoms, and to atoms and ions bound together in crystals.
Work function is defined as the minimum amount of energy needed to remove an electron from the atom. So, the minimum energy required to remove an electron is called the Work function.
plank's constant = 6.62 × [tex]10^{-34}[/tex] [tex]m^{2}[/tex] kg/s
Binding energy = 3. 14 × [tex]10^{3}[/tex] kj/mol
Energy = plank's constant * frequency
3. 14 × [tex]10^{3}[/tex] = 6.62 × [tex]10^{-34}[/tex] * v
v = 3. 14 × [tex]10^{3}[/tex] / 6.62 × [tex]10^{-34}[/tex]
v = 0.47 * [tex]10^{37}[/tex] Hz
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An electric dipole consists of a particle with a charge of 6 x 10–6 c at the origin and a particle with a charge of –6 x 10–6 c on the x axis at x = 3 x 10–3 m. its dipole moment is:______.
An electric dipole consists of a particle with a charge of 6 x 10⁻⁶ c at the origin and a particle with a charge of –6 x 10⁻⁶ c on the x axis at x = 3 x 10⁻³ m. Its dipole moment is 18 x 10⁻⁹ Cm
Dipole moment of a dipole is dependent on the charge of the dipole and the distance between the two charges.
Electric Dipole consists of two charges which are equal and opposite in charge i.e. positive and negative charges.
Given,
Dipole moment, p = ?
Charge, q = 6 x 10⁻⁶C
Distance between charges, d = 3 x 10⁻³ m
Dipole moment (p) is given by:
p = charge x distance between the two charges
p = 6 x 10⁻⁶ x 3 x 10⁻³ Cm
p = 18 x 10⁻⁹ Cm
The dipole moment for the given charge configuration is 18 x 10⁻⁹ Cm
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When the red light is on, the pigeon does not peck on the disk because it has learned that food will only be presented when the green light is on. this demonstrates the concept of:________
When the red light is on the pigeon does not peck on the disk and picks on green light, this demonstration is Stimulus reinforcement.
Fantastic reinforcement refers to the introduction of a perfect or quality stimulus after a conduct. The acceptable stimulus reinforces the conduct, making it more likely that the conduct will reoccur.
Reinforcement can consist of anything that strengthens or increases a behavior. three In a lecture room setting, for example, varieties of reinforcement would possibly include giving praise, letting college students out of undesirable work, or presenting token rewards, sweet, greater playtime, or a laugh sports.
Disclaimer:-your question is incomplete, please see below for complete question
A pigeon has learned that pecking a key when a red light is on is sometimes reinforced with access to food. The first time a green light is turned on, the pigeon begins to peck at the key. This illustrates the process of__
a. Stimulus discrimination
b. Stimulus discrimination
c. Stimulus reinforcement
d. Observational learning
Hence the answer is option c Stimulus reinforcement.
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When the red light is on the pigeon does not peck on the disk and picks on green light, this demonstrates the concept of Stimulus reinforcement.
Stimulus reinforcement is a stimulation that strengthens or weakens the behavior that has produced it.
Reinforcement is an action to encourage something. Stimulus is something that produces a sensory or behavioral response in a species.
A Positive stimulus reinforcement is referring to the introduction of desirable stimulus. It makes the stimulus reinforcement more likely that the behavior will be reoccurring. For example, In a classroom, praises act like a reinforcement. When the red light is on the pigeon does not peck on the disk and picks on green light, demonstrating Stimulus Reinforcement.
Fantastic reinforcement refers to the introduction of a perfect and a quality stimulus after a conduction.
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What angle (in degrees) is needed between the direction of polarized light and the axis of a polarizing filter to cut its intensity to one-fifth of its initial value?
The 60 degrees is needed between the direction of polarized light and the axis of a polarizing filter to cut its intensity to one-fifth of its initial value.
It is given that axis of a polarizing filter to cut its intensity to one-fifth of its initial value.
It is required to find the angle between the direction of polarized light and the axis of a polarizing filter to cut its intensity to one-fifth of its initial value.
What is the angle between the direction of polarized light and the axis of a polarizing filter?Suppose the angle between the polarizer and the axis of filter is θ.
The intensity of light that is passing after the filter is 0.2 l₀.
From the law of Malus, we have
I = I₀ [tex]cos^{2}[/tex]θ
0.2I₀= I₀ [tex]cos^{2}[/tex]θ
0.2 = [tex]cos^{2}[/tex]θ
[tex]cos\\[/tex]θ = 0.447
θ = 60°
Thus the angle between the direction of polarized light and the axis of a polarizing filter is 60 degree.
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what kind of energy is stored when you squeeze a mattress
Answer:
elastic energy
Explanation:
hope it helps you
A tank with a flat bottom is filled with water to a height of 7.5 meters. What's the pressure at any point at the bottom of the tank? (Ignore atmospheric pressure in your calculations.)
_______________
h=7,5 m
g=10 m/s²
ρ=1000 kg/m³
_______________
p - ?
_______________
p=ρgh=1000 kg/m³ · 10 m/s² · 7,5 m = 75000 Pa = 75 kPa
A compound is discovered and its molecular weight is determined to be 526g/mol. however, one of the elements has not yet been identified. what is the missing element, x, in batio9(x7)?
Sulphur
The missing element is sulphur
Here the compound is composed of element X and chlorine.
it is given,
XCl (6) ----> 6Cl
mass = 13.1%
it is X and Cl = 100%-13.10%
= 86.90%
chlorine = 86.90
X = 13.10
We assume 100g of sample
so according to the above solved data, in 100g of sample we have 86.90 g of chlorine.
now we split that chlorine into two moles of chlorine.
Every mole of sale has 35.45 grams of sales. 2.451 moles of seal are mine after that. We are aware that cl is six times more than X. To find the moles of X, I must divide this number by six. we discover that we have 0.4086 moles of X when we divide this by six.We obtain those moles of X from 13.10 g of X. Given that Mueller masses grams per mole, I can compute the molar mass.13.10 grams of X are contained in 0.4086 moles of X. Or, to put it another way, each remote has a molar mass of 32–06 grams. The element with this molar mass is sulfur, as I can see from the periodic table. Okay, so the element we're looking for in this situation is sulfur.To learn more about finding missing element visit;
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What is the speed of a transverse wave in a rope of length 3. 1 m and mass 86 g under a tension of 380 n?
117 m/sec is the speed of a transverse wave in a rope of length 3. 1 m and mass 86 g under a tension of 380 n.
The wave speed v is given by
v= √τ/μ
where τ is the tension in the rope and μ is the linear mass density of the rope.
The linear mass density is the mass per unit length of rope :
μ= m / L = (0.086 kg)/(3.1 m)=0.0277 kg/m.
v= [tex]\sqrt{ \frac{380 N}{0.0277 kg/m}}[/tex] = 117.125 m/sec (approx. 117 m/sec
In physics, a transverse wave is a wave whose oscillations are perpendicular to the direction of the wave's advance. This is in contrast to a longitudinal wave which travels in the direction of its oscillations. Water waves are an example of transverse wave.
Transverse waves commonly occur in elastic solids due to the shear stress generated; the oscillations in this case are the displacement of the solid particles away from their relaxed position, in directions perpendicular to the propagation of the wave. These displacements correspond to a local shear deformation of the material. Hence a transverse wave of this nature is called a shear wave. Since fluids cannot resist shear forces while at rest, propagation of transverse waves inside the bulk of fluids is not possible.
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An infinitely long cylinder of radius r = 2 cm carries a uniform charge density rho = 18 μc/m3. calculate the electric field at distance r = 1 cm from the axis of the cylinder?
The electric field at distance r = 1 cm from the axis of the cylinder is [tex]1.02*10^{4} N/C[/tex]
Electric Field= 2kρπr
Given,
Charge density(ρ)= 18 μc/m3.
radius = 1 cm = 0.01m
k=9*[tex]10^{9}[/tex]
Electric Field= 2kρπr=2*9*[tex]10^{9}[/tex]*18*[tex]10^{-6}[/tex] * π* 0.01= [tex]1.02*10^{4} N/C[/tex]
Electric FieldPhysically, electrically charged particles are surrounded by an electric field, which acts to either attract or repel all other charged particles in the vicinity. A system of charged particles' physical field is also referred to in this phrase. Charges and time-varying currents in electric systems give rise to electric fields. The electromagnetic field—one of the four basic interactions of nature—exudes both electric and magnetic fields. Many branches of physics place a premium on electric fields, which are also used to great effect in modern electrical engineering. The attractive force holding the atomic nucleus and electrons together in an atom, for example, is the electric field in atomic physics and chemistry. The chemical bonds that form between atoms to form molecules are also caused by this force.
An infinitely long cylinder of radius r = 2 cm carries a uniform charge density rho = 18 μc/m3. calculate the electric field at distance r = 1 cm from the axis of the cylinder?
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What effect does the diameter of the string have on the lever arm? explain why we can ignore this effect
The effective lever arm will be enhanced if we utilize a big diameter string.
What is Lever Arm?The perpendicular distance from the axis of rotation to the force's line of action is specified as the lever arm.
When a big diameter string is utilized, the effect of the diameter on the string of the lever arm will be enhanced.
This is due to the reason that if the radius of the pulley is R and the radius of the string is r, then the effective lever arm becomes R+r.
If the radius,r of the string is very minute such that its addition to the radius of the pulley, R will hardly make a change to the effective lever arm, then it is avoided. However, if the radius of the string is a big number then it can not be avoided as it can make significant errors in the calculation of the effective lever arm.
Hence, The effective lever arm will be enhanced if we utilize a big diameter string.
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B. the hockey player is moving at a speed of 9. 5 m/s. if it takes him 2 seconds to come to a stop under constant acceleration, how far does he travel while stopping? (2 points)
The hockey player is moving at a speed of 9. 5 m/s. if it takes him 2 seconds to come to a stop under constant acceleration, will be s = 9.5 m.
The branch of physics that defines motion with respect to space and time, ignoring the cause of that motion, is known as kinematics. Kinematics equations are a set of equations that can derive an unknown aspect of a body’s motion if the other aspects are provided.
These equations link five kinematic variables:
Displacement (denoted by Δx)
Initial Velocity v0
Final Velocity denoted by v
Time interval (denoted by t)
Constant acceleration (denoted by a)
These equations define motion at either constant velocity or at constant acceleration. Because kinematics equations are only applicable at a constant acceleration or a constant speed, we cannot use them if either of the two is changing.
v = u + at
0 = 9.5 + a (2)
a = - 9.5 /2 m/[tex]s^{2}[/tex]
[tex]v^{2}[/tex] = [tex]u^{2}[/tex] + 2as
0 = [tex](9.5)^{2}[/tex] + 2* (- 9.5 /2) * s
- [tex](9.5)^{2}[/tex] = - 9.5 s
s = 9.5 m
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A skater can spin faster by pulling her arms closer to her body or spin slower by spreading her arms out from her body. This is due to.
A skater can spin faster by pulling her arms closer to her body or spin slower by spreading her arms out from her body due to conservation of angular momentum
What is the principle of conservation of angular momentum?
According to the conservation of angular momentum principle, an object's angular momentum will remain constant until it is affected by an external force. This explains why tucking the arms in close to the torso causes a figure skater to spin more quickly. She has a significant moment of inertia as she starts spinning because more of her mass is farther away from her axis of movement (her body). Her moment of inertia is reduced when she tucks her arms close to her body.Learn more about conservation of angular momentum with the help of the given link:
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What expression gives the wavelength of the third harmonic for a 1.5 m pipe that is closed at one end?
The expression that gives the wavelength of the third harmonic for a 1.5 m pipe that is closed at one end is,
λ = (4/3)*L
where, λ represents the wavelength and L represents Length of the pipe.
What is a wave?The distance between sound wave points or waves crests that follow one another is known as wave.What are a crest?The crest of a wave refers to its highest surface area.What is a trough?The trough refers to a wave's lowest surface area.
Basic properties of waves include:wavelength - the distance between successive crests is said to be known as wavelength.
frequency - number of vibrations per second is considered to be frequency.
time period - the time taken by a complete cycle of the wave to pass a point is defined as time period.
speed - the rate at which an object covers distance can be defined as speed.
amplitude - the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position is known as amplitude.
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The sahara and australian deserts (among others) are associated with which pressure belt?
The Sahara and Australian deserts (among others) are associated with a sub-trpical high-pressure belt.
This location is for that reason a place of high stress. it's also called the pony range. Winds usually blow from excessive strain to low strain. So the winds from the subtropical region blow towards the Equator as change winds and some other winds blow toward Sub-Polar Low-pressure as Westerlies.
For the duration of the Northern Hemisphere's summer, the oceans are generally cooler in comparison to the warmer continents. In flip, cooler, denser maritime air that overlies the oceans serves to enhance surface pressures, paving the way for quite robust subtropical highs throughout summer.
The subtropical high-pressure belt vicinity is also referred to as the pony range. Those latitudes are characterized via calm winds and little precipitation.
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What is the relationship between Newton first law of motion and inertia
Answer:
the relationship between Newton first law of motion and inertia is there are two types of inertia: 1. Inertia of rest
2. Inertia of motion
Newton first law states that the body at rest stays at rest until it is acted by external or unbalanced force that is inertia of rest or body in motion remain in motion unless it is acted by unbalanced force or external force and this is inertia of motion.
Inertia is the tendency of an object to remain at motion or in rest.
A solenoid with 500 turns is 0. 10 m long and carries a current of 4. 0. What strength of magnetic field will it have at its center?
A solenoid with 500 turns is 0. 10 m long and carries a current of 4. 0. The strength of magnetic field at its center will be 2.5 * [tex]10^{-2}[/tex] H
Magnetic Field is the region around a magnetic material or a moving electric charge within which the force of magnetism acts.
A coil of wire which is designed to generate a strong magnetic field within the coil is called a solenoid. Wrapping the same wire many times around a cylinder creates a strong magnetic field when an electric current is passed through it. N denotes the number of turns the solenoid has.
Magnetic field at the center of the solenoid = mu0 * I * N / L
I = current in the solenoid
N = number of turns in the solenoid
L = length of the coil
B = 4π * [tex]10^{-7}[/tex] * 4 * 500 / 0.10
= 251200 * [tex]10^{-7}[/tex] H
= 2.5 * [tex]10^{-2}[/tex] H
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A river is flowing south at a constant speed of 1.20 m/s. The river is 45 meters wide.
Alice swims in the direction perpendicular to the river.
In order to target the spot 90 meters south of the starting point on the bank of the other side, what should be Alice’s speed relative to the water?
Alice's speed relative to the water should be 0.6 m/s in order to target the spot 90 meters south of the starting point on the bank of the other side.
What is relative velocity?Relative velocity refers to the velocity of an object with respect to another observer.
Velocity is speed in a given direction and is a vector quantity.
Velocity = displacement/timeThere is relative velocity between Alice and the water.
Let Alice's velocity relative to the river be x
Time it will take her to cross the river = 45/x
The displacement of the river in that time is given below as;
Displacement = velocity * time
Velocity of river = 1.20 m/s
time, t = 45/x
d = 90 m
90 = 1.2 * 45/x
90x = 54
x = 54/90
x = 0.6 m/s
Therefore, Alice's speed relative to the water should be 0.6 m/s.
In conclusion, relative velocity is the velocity of one object from the reference point of another object.
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the cullinan diamond weighs 621.35g and is estimated to have a value for 400 million. how many dollars per ounce do this equal
The value is equal to 18.26*10^6 dollars/ounces.
To find the answer, we have to know about the Cullinan diamond.
What is Cullinan diamond?The Cullinan Diamond, weighing 3,106.75 carats (621.35 g) (21.9 ounces), (1.37 pounds), was found at the Premier No.2 mine in Cullinan, South Africa, on January 26, 1905. It is the largest gem-quality rough diamond ever found.We have to find the dollars per ounce do this diamond equal,It is given that the diamond weighs 621.35g and is estimated to have a value for 400 million dollars. 621.35g means 21.9 ounces. Thus, for 1 ounce,[tex]21.9 Ounce= 621.35g=400*10^6 dollars\\\\value=\frac{400}{21.9} *10^6dollars/ounce=18.26*10^6dollars/ounce[/tex]
Thus, we can conclude that, the value is equal to 18.26*10^6dollars/ounces.
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→e pointing up and the magnetic field →b pointing west. what is the direction of wave propagation?
When the magnetic field is heading west and the electric field is pointing up, the wave propagation will be in the north.
How do we find out the direction of wave propagation?
Electromagnetic waves (EM-waves), as we are aware, are transverse. Electric and magnetic fields are both perpendicular to one another in EM waves (E⊥B).
Transverse waves are waves in which the propagation direction is opposite the direction of amplitude. for instance, gravitational waves, light waves, and water waves.
In this instance, the magnetic field is heading west while the electric current is pointing up towards the screen's layout.
∴ E x B = κ
where E= the direction of the electric field,
B = the direction of the magnetic field,
κ = at a particular point, the direction of propagation
The aforementioned equation is right-handed. When we put our finger towards ourselves (away from the screen) and curl it to the west, and the thumb will indicate the wave propagation direction ( north side ).
The propagation of waves in our instance is in the north direction.
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Titanium's specific heat capacity is 0. 523 j/g*k. how many joules of heat are required to raise the temperature of 2. 50g of titanium from 65. 0°c to 600. 0°c?
The amount of heat required to raise the temperature is 706.05J.
To find the answer, we need to know more about the specific heat capacity.
How to find the heat required to raise the temperature?Specific heat can be defined as, the amount of heat needed to increase a substance's temperature by one degree for every gram.We have the expression for amount of heat required to raise the temperature from T1 to T2 as,Q=msΔT
We have given with the following values,[tex]m=2.50g=2.50*10^{-3}kg\\s=0.523 J/gK=\frac{0.523}{10^{-3}} J/kgK=523J/kgK\\T_1=65^0C=338K\\T_2=600^0C=873K\\[/tex]
Thus, the amount of heat required to raise the temperature is,[tex]Q=2.5*10^{-3}*523*(873-333)=706.05 J[/tex]
Thus, we can conclude that, the amount of heat required to raise the temperature is 706.05J.
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When charging a system with vapor refrigerant from a refrigerant cylinder the cylinder will become:_________
When charging a system with vapor refrigerant from a refrigerant cylinder the cylinder will become cold .
When refrigerant is added in the vapor state, the refrigerant cylinder will lose pressure as the vapor is pushed out of the cylinder.The volume of the refrigerant changes with the ambient air so the graduated cylinder must be calibrated before each use.What is a refrigerant charging cylinder used for?
A cylinder used to transfer refrigerant from the transportation cylinder into the system during the charging process. It has several scales on the exterior that indicate various refrigerant charges.What type of refrigerant can be added as a liquid or a vapor?
Blends like R410a or 404a must be added to a system as a liquid. Pure refrigerants like R22 can be added in liquid or vapor states.
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A vector of magnitude 20 is added to a vector of magnitude 25. the magnitude of this sum can be?
The sum of vectors lie between 5 - 45
We all know that Vector is a quantity of Magnitude and Direction.
Couple of examples of Vector quantity are Acceleration, Displacement, Force, Momentum, Velocity
Let's solve the problem:
I A I is given as 20
I B I is given as 25
The sum of vectors lie between their maximum and minimum
Hence,
MIn < Sum of Vectors < Max
I A-B I < Sum of Vectors < I A + B I
I 20 - 25 I < Sum of Vectors < I A + B I
5 < Sum of Vectors < 45
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How much heat in joules will it take to raise the temperature of a 100. 0 g piece of copper from 18°c to 35°c? the specific heat capacity of copper is 0. 385 j ⁄ g · °c
The amount of heat generated is 654.5 joules.
q=mCΔT
Given,
m=100, C=0.385 j ⁄ g · °c, [tex]T_{1} =18^{0}C , T_{2} =35^{0} C[/tex],
q=100*0.385*(35-18)= 654.5 j
HeatHeat is defined as energy that is transferred to or from a thermodynamic system by means other than thermodynamic work or the movement of matter (e.g. conduction, radiation, and friction). Similar to thermodynamic work, heat transfer affects a system's surrounds in addition to the system itself; as a result, it is not a characteristic of the system alone, even while it helps to change the internal energy of the system, which is a property of the system alone. This differs from the common linguistic usage of the word "heat" as a system feature in and of itself. The quantity of energy that is transported as heat in a process is the amount of energy that has been transferred minus any thermodynamic work that has been done and any energy that has been contained in the substance being moved.
How much heat in joules will it take to raise the temperature of a 100. 0 g piece of copper from 18°c to 35°c? the specific heat capacity of copper is 0. 385 j ⁄ g · °c
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A vector has a component of 10 m in the x-direction, a component of 10 m in the y-direction, and a component of 5 m in the z direction. The magnitude of this vector is?
The magnitude of this vector is 15
A vector is a quantity or phenomenon that has two independent properties: magnitude and direction. The term also denotes the mathematical or geometrical representation of such a quantity. Examples of vectors in nature are velocity, momentum, force, electromagnetic fields, and weight.
The magnitude of a vector formula is used to calculate the length for a given vector (say v) and is denoted as |v|. So basically, this quantity is the length between the initial point and endpoint of the vector.
Let vector be = a
component of vector in x direction = 10 i
component of vector in y direction = 10 j
component of vector in z direction = 5 z
vector a = 10 i + 10 j + 5 z
magnitude of vector a = |a| = [tex]\sqrt{10^{2} +10^{2} + 5^{2} }[/tex]
= 15
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What is the function of a diaphragm in a camera?
It controls the speed of the shutter.
It focuses incoming light rays.
It controls the amount of light.
It directs the image to the viewfinder.
how to find out the heat capacity of a material?
[tex]\huge\underline{\underline{\boxed{\mathbb {EXPLANATION}}}}[/tex]
The heat capacity is given by the expression:
[tex]\longrightarrow \sf{\triangle Q= m \triangle C \triangle T}[/tex]
[tex]\longrightarrow \sf{Q= \: Heat}[/tex]
[tex]\longrightarrow \sf{M= \: Mass}[/tex]
[tex]\longrightarrow \sf{C= \: Specific \: Heat}[/tex]
[tex]\longrightarrow \sf{T= \: Temperature}[/tex]
[tex]\huge\underline{\underline{\boxed{\mathbb {ANSWER:}}}}[/tex]
[tex] \leadsto[/tex] When the [tex] \bm{heat}[/tex] is measured in the calorimeter, we obtain a value, and since we know the mass of the material and we control the change in [tex] \bm{temperature}[/tex] , we can then determine the specific heat "C" by simply remplazing in the expression.
The heat capacity of a material is its ability to absorb heat energy. There are different methods to determine the heat capacity of a material, depending on the specific conditions and resources available. Here are some common approaches:
Differential Scanning Calorimetry (DSC): DSC is a technique used to measure heat flow into or out of a material as a function of temperature. By subjecting the material to controlled heating or cooling, the heat capacity can be determined from the measured heat flow data.Specific Heat Capacity Measurement: The specific heat capacity of a material is the amount of heat energy required to raise the temperature of a unit mass of the material by one degree Celsius (or Kelvin). This can be determined through calorimetry experiments, where the material is heated or cooled while its temperature changes and heat transfer amount are measured. The specific heat capacity can then be calculated using the equation: Q = mcΔT, where Q is the heat energy transferred, m is the mass of the material, c is the specific heat capacity, and ΔT is the temperature change.Tabulated Data: The heat capacity of some commonly used materials is available in reference books, handbooks, or online databases. These values are often given as average or estimated values based on previous measurements. By referencing such data, you can obtain an approximate heat capacity value for a specific material.Statistical Data: The heat capacity of some commonly used materials is available in reference books, handbooks, or online databases. These values are often given as averages or estimates based on previous measurements. By referencing such data, you can obtain an approximate heat capacity value for a specific material.It's imperative to note that heat capacity can vary with temperature, pressure, and other factors. Therefore, measurements or data should ideally be conducted or referenced within the appropriate range of conditions relevant to the specific application or analysis.
Select all the correct answers. which three forms of light are invisible light? blue light infrared rays radio waves red light x-rays
Infrared rays, radio waves, and x-rays are the three kinds of light that are invisible to human vision.
What is a visible spectrum?The region of the electromagnetic spectrum that the human eye can see is known as the visible light spectrum. This group of wavelengths is most commonly referred to as visible light. The range of wavelengths that the human eye can typically see is from 380 to 700 nanometers.
Example of visible spectrum is visible light.
Examples of invisible light are;
Infrared raysRadio wavesx - raysThus, the three forms of light that are invisible light or invisible to human eyes are Infrared rays, Radio waves and x - rays.
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