(a) Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 × 108 m. Find the time it took for his voice to reach the earth via radio waves.  (b) Someday a person will walk on Mars, which is 5.60 × 1010 m from the earth at the point of closest approach. Determine the minimum time that will be required for a message from Mars to reach the earth via radio waves.

Q: Find the wavelengths of electromagnetic waves with the following frequencies. (Assume the waves are…

A: Frequencies in the given question; f1=4×1019 Hz f2=6×109 Hz Speed of light in vacuum (c)=3×108 m/s

Q: Or) ^– Write an equation representing a linearly polarized wave with an angular frequency that…

A: Polarised wave means a wave in a plane.

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A: Given: Who will hear the voice of a singer first- a person in the balcony 50.0 m away from the…

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A:

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A:

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A:

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A:

Q: AM and FM radio waves are transverse waves that consist of electric and magnetic disturbances. These…

A: Given : c=3×108m/s              fAM=1230×103Hz              fFM=91.9×106Hz   The distance between…

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A:

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A: The temperature at an altitude of 3 km is:

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A: To find the correct statement

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A: Consider a cylindrical light source. Let dA be defined as the area that making a solid angle dω from…

Q: The frequency of a microwave signal from a satellite in space is 9.89 GHz. What is its wavelength?…

A: Given data: The frequency of signal is f=9.89 GHz. Speed of light is c=3×108 m/s.

Q: Radio waves travel at the speed of light, 3.0 x 108 m/s. The wavelength of a radio wave received at…

A:

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A: Given data:  A mechanical wave Frequency (f) = 20 Hz Wavelength (λ) = 0.1 m Required: The speed of…

Q: portional to their altitudes. 14 Cm and its altitude is 30 cm. Find the base of a Iitude is 40 cm.…

A:

Q: A solar car has a roof dimensions of 149cm x 81cm for solar cells. Calculate the electrical power…

A: Dimensions = 149 cm * 81 cm  100 cm = 1 m  Therefore, area of roof = 1.49 m * 0.81 m = 1.2069 m2…

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A:

Q: Which of the following is true for electromagnetic waves? (6.3)(a) They have different speeds in…

A: Explanation Given Info: The electromagnetic wave. Explanation: In the electromagnetic wave, the…

Q: Which of the following statements is true regardingelectromagnetic waves traveling through a…

A:

Q: Find the wavelengths of electromagnetic waves with the following frequencies. (Assume the waves are…

A: Given      Speed of electromagnetic wave in vaccum       C=3x108 m/s     We need to find…

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A: Visible light waves, heat rays, x-rays and radio waves are electromagnetic waves, because it…

Q: Which of the following is correct about the electromagnetic waves? [A] They require a solid medium…

A: Option [B} is correct. Electromagnetic waves can travel through vacuum.

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A:

Q: The voice from an astronaut on the Moon (Fig. 22–22) was beamed to a listening crowd on Earth. If…

A: Given: Distance of crowd from loudspeaker on Earth, d=28 m To determine: The total time lag between…

Q: ough vacuum at a frequency of 60MHz. However, it is also broadcast through air with propagation…

A: We know that the relation between the velocity and the wavelength of the wave signal is given as  λ=…

Q: A plane wave of light that propagates in vacuum in the x-direction obeys the following function:…

A: Given: The equation of the wave is given as. Ex,t=2000 N/Csin1.26×107 m-1x-3.14×1015 rad/st…

Q: ellow light travels at a speed of 1.97 108 m/s through a certain glass block. The wavelength of…

A: Given: The speed of the light is 1.97x108 m/s. The wavelength of the light is 3.835x10-7 m.

Q: A certain FM radio station broadcasts jazz music at a frequency of 120.5 MHz. (Radio waves are…

A:

Q: The amount of signal refraction that occurs depends on : * The frequency of the radio wave O The…

A: The wave energy directly varies with the frequency of the wave, so the amount of the signal…

Q: If the Earth-moon distance is 3.8 x 108 m, how much time would elapse between the sending of a radar…

A: We have givenDistance between earth annd moon (d)=3.8×108 m

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A: The maximum distance d between the TV set and politician is,

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A: Given: The dimension of solar cells is 133 cmx95 cm. The energy loss is 84%. The intensity of light…

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A: Light wave travel fastest in vacuum than that in air. There are lot of gas molecules present in air.…

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A: Given data The frequency is f=8.28 GHz   The wavelength is, λ=cf Here c is the speed of light in the…

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A:

Q: A bat’s squeak takes 0.146 s to return after reflecting off a moth. How far away is the bat from the…

A: Let the distance of the bat from the moth to be d. The expression for the speed is written as, So,…

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A:

Q: A politician holds a press conference that is televised live. The sound picked up by the microphone…

A: The travel time of electromagnetic waves being used to broadcast is

Q: Which statement is correct about the speed of electromagnetic waves in a vacuum? Ultra-violet waves…

A: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an…

Q: A solar car has a roof dimensions of 127cm x 88cm for solar cells. Calculate the electrical power…

A:

Q: - Which of the following statements is not correct about the electromagnetic wave? A. Can't travel…

A: Electromagnetic waves are waves that travel through space carrying electromagnetic energy. These…

Q: A Bangladeshi submarine and a submarine of Pakistan move towards from each other during maneuvers in…

A: Given: The velocity of the Bangladeshi sub is 54 Km/h. The velocity of the Pakistan sub is 63 Km/h.…

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.