The factor that can have a significant influence on a planet’s surface temperature is its atmosphere.
What is the role of the atmosphere in the planet's temperature?The atmosphere plays a fundamental role in the Earth planet's temperature because it allows the entry and out of certain types of radiation that may increase the temperature.
The role of the atmosphere in the Earth's temperature is well documented because our temperature is thick and it increases its homeostatic temperature balance.
In conclusion, the factor that alters a planet’s surface temperature is its atmosphere.
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The main purpose of any wave, including sound waves and ocean waves, is to
carry __________ from one place to another.
A
heat
B
magnetism
C
energy
D
electricity
The main purpose of any wave, including sound waves and ocean waves, is to carry energy from one place to another.
A sound wave is the pattern of disruption brought on by the movement of energy moving through a medium as it propagates away from the source of the sound (such as air, water, or any other liquid or solid matter). Pressure waves are produced when an object vibrates, such as a ringing phone, and these waves are known as sound waves.
A wave crest is produced when wind continuously disturbs the water's surface in an ocean or lake. Ocean waves, which often go by the name wind waves, are mostly gravity waves. The height, duration, and shape of succeeding waves vary with a certain level of randomness of ocean waves.
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Wavelength and frequency are: ________.
a. directly proportional to each other
b. inversely proportional to each other
c. inversely proportional to the square of their distance
d. unrelated to each other
Answer: b. inversely proportional to each other
Explanation:
The wave with the greatest frequency has the shortest wavelength. Twice the frequency means one-half the wavelength.
A small fly of mass 0. 30 g is caught in a spider's web. the web oscillates predominantly with a frequency of 4. 3 hz. part a what is the value of the effective spring stiffness constant k for the web?
A small fly of mass 0. 30 g is caught in a spider's web. the web oscillates predominantly with a frequency of 4.3 Hz. The value of the effective spring stiffness constant k for the web is 0.21 N/m
Frequency of the oscillation is the number of oscillation in per unit time. It's SI unit is Hertz or s⁻¹.
Spring stiffness constant k is a measure of the stiffness of spring.
The Frequency of the oscillation is given by the following formula:
f = [tex]\sqrt{k/4\pi m}[/tex]
where, f is the frequency of web
k is the stiffness constant of web
m is the mass of small fly
On rearranging the above equation,
k = 4π²f²m
⇒ k = 4 (3.14)² (4.3)² 0.0003
⇒ k = 0.21 N/m
Hence, the Stiffness constant k for the web is 0.21 N/m
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A capacitor is connected to an ac supply. increasing the frequency of the supply _________ the current through the capacitor
A capacitor is connected to an ac supply. increasing the frequency of the supply increases the current through the capacitor
A capacitor is a device for storing electrical energy that consists of two insulated conductors in close proximity. The parallel-plate capacitor is a simple example of such a storage device.
A capacitor (also known as a condenser) is a two-terminal passive electrical component that stores energy electrostatically in an electric field. Practical capacitors come in a variety of shapes and sizes, but they all have at least two electrical conductors (plates) separated by a dielectric (i.e., insulator).
Capacitors exist in various shapes and sizes, and their value is measured in farads (F). Capacitors are utilized in both alternating current and direct current systems.
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If you dip hand in cold water after having dipped in warm water wii you feel the water colder than actually is?
Your hand feels colder when it transitions from warm to "colder" (room temperature) water.
What happens when you put your hand from warm water to cold water?Your hand feels colder when you move it from the warm water to the "colder" (room temperature) water. Skin surface temperature will decrease in a constant ambient environment as a result of sympathetic nerve activity increasing and blood flow decreasing as a result of cutaneous receptors triggered by ice-water immersion of one hand in the palm skin of the non-immersed opposite hand.
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When both glucose and lactose are present in the media in which e. coli is growing, which is the preferred carbon source?
When both glucose and lactose are present in the media in which E. coli is growing the preferred carbon source of is glucose.
About lac operon:
The lac operon of E. coli contains genes involved in lactose metabolism which is expressed when lactose is present and glucose is absent.The lac repressor and catabolite activator protein (CAP) are two regulators that control the operon's "on" and "off" states in response to lactose and glucose concentrations.A lactose sensor is the lac repressor. When lactose is present, it ceases to function as a repressor, blocking transcription of the operon in its usual state. Through isomer allolactose, the lac repressor indirectly detects lactose.The CAP serves as a glucose sensor. It starts the operon's transcription, but only when the blood glucose level is low. Through the chemical cAMP, CAP detects glucose in an indirect manner.Learn more about the Lac operon with the help of the given link:
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Using the formula for the resonant frequency, find the resonant frequency of a lcr circuit with l = 1 mh, c = 560 pf?
For LCR circuit, the Resonant frequency is 212.68kHz.
Given LCR circuit has L= 1 mH, C= 560pf
f=1/{2*22\7*√[1×10^(-3)H]*√[56*10^(-12)F]
f=212.68kHz
About Resonance frequency:
Equation f = 1 / [2π×√(LC)] can be used to calculate the resonant frequency of the RLC circuit, where:
f is the resonant frequency.L is the inductor's inductance.C is the capacitor's capacitance.The frequency at which the transfer function reaches its highest value is known as the resonant frequency of an electrical system. Consequently, the greatest output for a given input can be obtained. It has been demonstrated that resonance occurs when the values of the capacitive and inductive impedances are equal.
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Doctors once believed that illness was caused by foul air and could not be transmitted from one person to another. now, doctors know that single-celled bacteria and even smaller viruses cause illnesses and can be transmitted from one person to another. how did the advent of the microscope most likely affect the foul-air theory? it supported the theory of foul air causing illness and helped the theory become a law. it provided evidence for other causes of illness, but scientists did not change the theory. it allowed scientists to change the theory before any new information was collected. it allowed scientists to see small organisms in sick individuals and change the theory.
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What is the maximum number of grams of fat recommended on a 2000-kcalorie diet based on the daily value?
a. 34
b. 45
c. 78
d. 56
e. 67
The maximum number of grams of fat recommended on a 2000-kcalorie diet based on the daily value is around 65 grams,therefore option (e)
The term "daily value" (DV) describes how much of a nutrient you should eat daily based on a diet of 2,000 calories.On the FDA website, you may obtain the daily values for a variety of nutrients. In order to meet the average adult's energy requirements, the FDA picked 2,000 calories.Fat intake must be kept to a minimum. A 2,000 calorie diet per day should contain no more than 65 grammes of total fat, 20 grammes or less of saturated fat, and trace levels of trans fat. Trans fats are bad because they narrow our arteries, increasing our risk of coronary heart disease.Learn more about daily value from here:https://brainly.com/question/23095932
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A simple, direct-current electrical circuit is shown below.
Which of the following does the arrow in the circuit represent?
A
the difference in electric potential
B
the resistance to current flow
C
the direction of current flow
D
the direction of electron flow
The direction of current flow is given by an arrow in the electrical circuit.
Several categories are used to categorise electrical circuits. One-way current only flows through a direct-current circuit. As with most residential circuits, an alternating-current circuit is a channel for transmitting electrical current that pulses back and forth numerous times each second.
A battery or generator, a device that provides energy to the charged particles that make up the current, a device that uses current, such as a lamp, an electric motor, or a computer, and the connecting wires or transmission lines make up an electrical circuit.
A source of electrical power, two wires that can transmit current, and a light bulb make up an electrical circuit. Both wires have one end connected to a cell terminal and the other end connected to a light bulb. When the light bulb is turned off, the electrical circuit is disrupted.
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A capacitor is connected across an ac source. Suppose the frequency of the source is doubled. What happens to the capacitive reactance of the inductor?.
The capacitive reactance is reduced by a factor of 2.
Calculation:We know the capacitive reactance is given as,
[tex]Xc = \frac{1}{2\pi fC}[/tex]
where,
[tex]Xc\\[/tex] = capacitive reactance
f = frequency
C = capacitance
It is given that frequency is doubled, i.e.,
f' = 2f
To find,
[tex]Xc[/tex] =?
[tex]Xc' = \frac{1}{2\pi f'C}[/tex]
[tex]= \frac{1}{2\pi 2f C}[/tex]
[tex]= \frac{1}{2} (\frac{1}{2\pi fC} )\\[/tex]
[tex]Xc' = \frac{1}{2} Xc[/tex]
Therefore, the capacitive reactance is reduced by a factor of 2.
I understand the question you are looking for is this:
A capacitor is connected across an AC source. Suppose the frequency of the source is doubled. What happens to the capacitive reactant of the inductor?
The capacitive reactance is doubled.The capacitive reactance is traduced by a factor of 4.The capacitive reactance remains constant.The capacitive reactance is quadrupled.The capacitive reactance is reduced by a factor of 2.Learn more about capacitive reactance here:
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What is the wavelength in air of red light from a helium neon laser?
Answer:
632.8 nm is the wavelength (in air) of red light from a helium neon laser.
The natural tendency of an object to remain at rest or in motion with a constant velocity is called?
The property of a body to remain at rest or to remain in motion with constant velocity is called inertia.
Newton's first law is often called the law of inertia.As we know from experience some objects have more inertia than others.It is obviously more difficult to change the motion of a larger boulder than that of basketball.For example the inertia of an object is measured by its mass.Mass can be determined by measuring how difficult an object is to accelerate.The more mass an object has,the harder it is to accelerate.
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A 24. 0-mw (milli-watts) laser puts out a narrow cylindrical beam 2. 00 mm in diameter. what is the average rms e-field? n/c
A 24. 0-mw (milli-watts) laser puts out a narrow cylindrical beam 2. 00 mm in diameter. The average rms electric field is 2.82N/C.
The Average rms Electric Field is the square root of the mean value of electric field.
Given:
Power of beam = 24mW = 0.024W
Diameter of beam = 2mm = 0.002m
Radius of beam = 1mm = 0.001m
∴ Area Of beam = 22/7 × (radius)²
⇒ Area Of beam = 22/7 × (0.001)²
⇒ Area Of beam = 3.14 m²
∴ Intensity of Beam is the power per unit area where the beam spreads.
Intensity of Beam = Power / Area
⇒ Intensity of Beam = 0.024 / 3.14
⇒ Intensity of Beam = 0.075 W/m²
The average value of RMS for Electric field can be calculated by:
Erms = [tex]\sqrt{Intensity / (speed of light) (permmitivitty of medium)}[/tex]
Erms = 0.075 / 3 × 10⁸ × 8.85 × 10⁻¹²
Erms = 2.82 N/C
Hence, The average value of rms electric field is 2.82N/C
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Although most astronomers assume dark matter really exists, there is at least one other possible explanation for the phenomena attributed to dark matter. What is it?.
Although most astronomers assume dark matter really exists, there is at least one other possible explanation for the phenomena attributed to dark matter. What is it?
It's possible that our understanding of how gravity behaves on galaxy-scales is inaccurate or lacking in some way.
What is dark matter in space?We surmise that dark matter exists based on its gravitational pull on visible matter. In order to rule out the idea that our comprehension of gravity is leading us to incorrectly infer the presence of dark matter, the majority of scientists believe it to be extremely unlikely that there is a problem with our knowledge of gravity. As long as it is too faint for us to perceive beyond the halo of our galaxy, astronomers regard dark matter to be "dark." If a human were to be hurled into the halo of our galaxy, they might end up being dark matter. An estimated 85% of the universe's mass is assumed to be made up of dark matter, a hypothetical type of stuff. Dark matter is so-called because it doesn't seem to interact with the electromagnetic field, which means it doesn't emit electromagnetic radiation like light or absorb electromagnetic radiation like it does. As a result, it is hard to detect. Numerous astrophysical observations support the existence of dark matter, including gravitational effects that cannot be described by the gravity theories currently in use without the presence of more matter than can be observed. Because of this, the majority of scientists believe that dark matter is prevalent in the universe and has greatly influenced its structure and evolution.
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What was the major problem with the hubble space telescope when it was first launched into orbit?
Answer:
Apparently, a measuring rod had been used incorrectly and the telescope was not focusing properly - changes were later made to the telescope to correct this problem.
10 kg petrol has density of 800 kg/m³. Find its volume in cm³.
The answer is 12,500 cm³.
First, let's find the volume in m³.
Volume = Mass ÷ Density
Volume = 10 kg ÷ 800 kg/m³Volume = 1.25 × 10⁻² m³Now, to convert from m³ to cm³ :
m³ × 10⁶ = cm³
1.25 × 10⁻² × 10⁶1.25 × 10⁴12,500 cm³If one oscillation has 5. 8 times the energy of a second one of equal frequency and mass, what is the ratio of their amplitudes?
The ratio of their amplitudes will be 2.41.
To find the answer, we have to know more about the simple harmonic motion.
How to find the ratio of their amplitudes?It is given that,[tex]E_1=5.8E_2\\m_1=m_2 \\\omega_1=\omega_2[/tex]
We have the relation between these quantities and amplitudes as,[tex]A=\sqrt\frac{2E}{k} \\k=m\omega^2[/tex]
Here, for both the oscillation, k will be same.Thus, the ratio of amplitude will be,[tex]\frac{A_1}{A_2} =\sqrt{\frac{E_1}{E_2} } =\sqrt{\frac{5.8E_2}{E_2} } =2.41[/tex]
Thus, we can conclude that, the ratio of their amplitudes will be 2.41.
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A company has been hired to perform environmental remediation on an area of marshland. what would they most likely do? remove pollutants and use technology to monitor the health of the marshland install a new recycling plant in the area recommend burning the marshland and replanting it convert the marshland to residential areas
Answer:
answer is make marshland better
Explanation:
so if they made marshland better then as a result of that action of making marshland better then marshland would be better!
hopefully i helped dawg
If a giant molecular cloud is 59 pc in diameter and a shock wave sweeps through at 18 km/s, how long will it take the shock wave (in years) to sweep through the cloud?
The time it will take for the shock wave in years to sweep through the cloud is 3.2075 x 10⁷ years.
What is Velocity?Velocity is the directional speed of a moving object as an indicator of its rate of change in location as perceived from a certain frame of reference and measured by a specific time standard.
As it is known that one parsec is equal to 3.086×10¹⁶ meters. Therefore, the diameter of the molecular cloud is,
Diameter of the molecule = 59 pc
= 59 × 3.086×10¹⁶ meters
= 1.82074 × 10¹⁸ meters
= 1.82074 × 10¹⁵ kilometres
Given that the shock wave sweeps through at 18 km/s. And as it is known that velocity is the ratio of distance and time. Therefore, the time it will take for the shock wave to sweep through the molecule cloud is,
Velocity = Distance / Time
18 km/s = 1.82074 × 10¹⁵ km / Time
Time = 1.82074 × 10¹⁵ km / 18 km/s
t = 1.01152x10¹⁴ seconds
Since one year is equal to 31,536,000 seconds, therefore, the time in years is equal to,
t = 1.01152x10¹⁵ seconds / 31,536,000 seconds per year
t = 32,075,088.79 years
t = 3.2075 x 10⁷ years
Hence, the time it will take for the shock wave in years to sweep through the cloud is 3.2075 x 10⁷ years.
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The break up of the supercontinent ____________________ and changes in climate due to increased weathering and carbon dioxide drawdown are likely causes of snowball earth.
The break up of the supercontinent Rodinia and changes in climate due to increased weathering and carbon dioxide drawdown are likely causes of snowball earth.
Rodinia was a supercontinent that assembled 1.1–0.9 billion years ago and broke up 750–633 million years ago. The extreme cooling of the global climate around 717–635 million years ago (the so-called Snowball Earth of the Cryogenian period) and the rapid evolution of primitive life are thought to have been triggered by the breaking up of Rodinia
The results revealed the breakup of Rodinia occurred over the same geological time period as carbon dioxide declined and temperatures fell. That, Meert said, pointed to Rodinia's breakup as the cause of Snowball Earth
The break-up of a supercontinent may have caused a 'Snowball Earth'. The Earth might have been sent into an ice age by the break-up of a supercontinent 750 million years ago, creating a global snowball. The break-up probably caused an increase in rainfall and weathering of rock
Just as shattering a rock into pieces increases its exposed surface area, so breaking up the supercontinent increased the amount of land exposed to the elements and resulted in a more active hydrological cycle
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Which of the following best explains why electromagnetic waves of all wavelengths have the same speed in a vacuum?
A
All electromagnetic waves have the same stiffness and wave speed is proportional to stiffness.
B
All electromagnetic waves have the same manner of propagation; alternating electric and magnetic fields.
C
Why all electromagnetic waves have the same speed was explained by Einstein's theory of relativity.
D
Actually light is the fastest electromagnetic wave, followed by X-rays and then radio waves.
All electromagnetic waves have the same manner of propagation; alternating electric and magnetic fields that's why electromagnetic waves of all wavelengths have the same speed in a vacuum
An altering magnetic field will cause an altering electric field and vice versa. Electromagnetic waves are created from these shifting fields. In contrast to mechanical waves, electromagnetic waves can travel without a medium. The oscillations between an electric field and a magnetic field produce waves known as electromagnetic waves or EM waves.
In other words, magnetic and electric fields oscillate to form electromagnetic (EM) waves. Almost the majority of the energy that sustains life on our planet comes from electromagnetic waves that flow from the sun to Earth through space. Technology is a necessity for many additional electromagnetic wave sources. Examples include X-rays, radio waves, and microwaves.
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When fluids are pulled into capillaries, what type of receptor will detect the resulting pressure?
When fluids are pulled into capillaries, the receptor will detect the resulting pressure is Osmoreceptor
Osmoreceptor is any group of cells sensitive to plasma osmolality that are held to exist in the brain and to regulate water balance in the body by controlling thirst and the release of vasopressin.
Osmoreceptors (Fig. 4-11) located in the hypothalamus (and also in the carotid artery) are capable of sensing the concentrations of solutes, particularly sodium ion. This leads to a secretion of vasopressin.
An osmoreceptor is a sensory receptor primarily found in the hypothalamus of most homeothermic organisms that detects changes in osmotic pressure. Osmoreceptors are sensory receptors that detect changes in osmotic pressure and contribute to maintaining fluid balance in the body. They are primarily found in the hypothalamus and kidneys.
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Select the correct answer. the lens in the eyepiece of a telescope magnifies light by bending it. what is this bending called? a. absorption b. dispersion c. radiation d. reflection e. refraction
This bending of light is called "refraction".
What is Refraction?Simply said, reflection is the act of light reflecting back when it strikes a medium on a plane. Refraction is the process by which light shifts as it travels through a material, causing the light to bend. The medium receives the light that originally entered it back.
Refraction is the scientific term for this bending of light. It occurs when light travels through one medium and then through another where the speed of the light is different. It occurs when light travels from the air into the glass in the telescope eyepiece or even in your spectacles.
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Answer:
E. refraction
Explanation:
What might stephanie determine as the best production quantity per cycle for each day of the week? operations tour
According to Stephanie, is the optimal production quantity per cycle. The best output rate each cycle for each day of the week, as determined by Step 1 by Stephanie, might be: To calculate each model's daily demand, multiply the weekly demand for each model by 5.the total number of protons and neutrons found in an atom's nucleus.
The mass number is an production that roughly equates to the atomic mass's numerical value. Despite being unitless, the mass number is assigned atomic mass units (amu). The average atomic mass of any molecule or polyatomic ion can be determined from its composition by summing the rate masses of the constituent atoms.
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For a mass suspended on a spring in the vertical direction, the time for one complete oscillation will depend on:
The time for one complete oscillation will not depend on any of the factors listed. Option D
What is a pendulum?A pendulum is composed of a string that is vertically suspended and the end of the string has a mass attached to it. The period of the pendulum refers to the umber of oscillations that occur after the pendulum is displaced through small angle.
Given that the period of a pendulum is;
T = 2π√l/g
T = period of the pendulum
l = length of the pendulum
g = acceleration due to gravity
Hence, the time for one complete oscillation will not depend on any of the factors listed. Option D
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Missing parts;
For a mass suspended on a spring in the vertical direction, the time for one complete oscillation will depend on: a)the value for g (the acceleration due to gravity) b)the distance the mass was originally pulled down c)the maximum speed of the oscillating mass d)the time doesn't depend on any of the above
A transmission line strung 7.0 m above the ground carries a current of 500 A. What is the magnetic field on the ground directly below the wire
Answer:
Approximately [tex]143\; {\rm T}[/tex] assuming that this transmission line is straight and infinitely long.
Explanation:
Lookup the permeability of free space: [tex]\mu_{0} = 4\, \pi\; {\rm T \cdot m \cdot A^{-1}[/tex].
Consider an infinitely-long straight wire in empty space carrying a current of [tex]I[/tex]. At a distance of [tex]r[/tex] from this wire, the magnitude of the magnetic field from the wire would be:
[tex]\begin{aligned} B &= \frac{\mu_{0}\, I}{2\, \pi\, R}\end{aligned}[/tex].
In this question, it is given that [tex]I = 500\; {\rm A}[/tex]. At a distance of [tex]R = 7.0\; {\rm m}[/tex] from this wire, the magnitude of the magnetic field from this cable would be:
[tex]\begin{aligned} B &= \frac{\mu_{0}\, I}{2\, \pi\, R} \\ &= \frac{(4\, \pi \; {\rm T \cdot m \cdot A^{-1}}) \, (500\; {\rm A})}{(2\, \pi)\, (7.0\; {\rm m})} \\ &\approx 143\; {\rm T}\end{aligned}[/tex].
a car travels. one third of the distance on a straight road with velocity v1 and next one third with velocity v2 and last one velocity v3. what is the average velocity
Answer:
the average velocity is final velocity - intial velocity/2
= V3 - V1 /2
= V1/2
= 0.5m/s or 1/2 m/s
What is the change in internal energy of the system (δu) if 71 kj of heat energy is absorbed by the system and 12 kj of work is done on the system for a certain process?
From the first law of Thermodynamic, the change in internal energy of the system is 83 KJ.
What is Internal Energy of a system ?The Internal energy of a system is the sum of the random distribution of kinetic and potential energies of its atoms or molecules. Internal energy can be increased by
HeatingCompressionPassing of electric current through it.Looking for the change in internal energy of the system If 71 KJ of heat energy is absorbed by the system and 12 KJ of work is done on the system for a certain process,
From the first law of Thermodynamic,
ΔU = Q + W
Where
ΔU = Increased in internal energy = ?Q = Energy supplied by heating = 71 KJW = Energy supplied by doing work = 12 KJSubstitute all the parameters into the formula
ΔU = 71 + 12
ΔU = 83 KJ
Therefore, the change in internal energy of the system is 83 KJ.
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Two rockets approach each other. each is traveling at 0. 84 cc in the earth's reference frame. part a what is the speed of one rocket relative to the other?
The speed of one rocket relative to the other is 8.5 cc.
Let s be the frame at rest relative to the earth. Let the spaceship moving to the left with respect to the earth at speed [tex]v[/tex] be the particle in the terminology. Then the velocity of the spaceship relative to each other is simply the velocity of the second spaceship.
That for speeds small compared with the speed of light the relativistic velocity addition law gives the usual Newtonian result, whereas for speed near c the result is not what has been expected classically.
[tex]v' = 0.96cc\\\\v= 0.84cc\\\\\\v' = \frac{v+V}{1+ \frac{vV}{c^2} } \\\\v' = \frac{v+V}{ \frac{c^2+ vV}{c^2} }\\\\v' = \frac{(v+V) c^2} {c^2+ vV}\\\\\\v'c^2 + c^2v = V (c^2 - v'v)\\\\V = \frac{v'c^2+c^2v}{c^2 - v'v} \\ \\ = \frac{0.96 * 9* 10 ^1^6 + 0.84*9*10^1^6}{9*10^1^6 - 0.96 * 0.84} \\\\ =\frac{16.2}{1.9}\\ \\= 8.5 cc[/tex]
Therefore, the speed of one rocket relative to the other is 8.5 cc.
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