You are a NASA mission specialist on your first flight aboard the space shuttle.

Question

You are a NASA mission specialist on your first flight aboard the space shuttle. Thanks to your extensive training in physics, you have been assigned to evaluate the performance of a new radio transmitter on board the International Space Station (ISS). Perched on the shuttle's moveable arm, you aim a sensitive detector at the ISS, which is a distance of 2.3km away. You find that the electric-field amplitude of the radio waves coming from the ISS transmitter is 9.7*10^-2V/m and that the frequency of the waves is 246MHz .

A) Find the intensity of the radio wave at your location.

Express your answer using two significant figures.

B)

Find the magnetic-field amplitude of the wave at your location.

Express your answer using two significant figures

C)

Find the total power output of the ISS radio transmitter.

Express your answer using two significant figures

Explanation / Answer

A. Intensity I = power/.area = Emax^2/2uoC

where u0 = 4pi*10^-7

C =velcoity of light

so here I = 0.097^2/(2*4pi*10^-7 *3e8)

I = 1.248 *10^-5 W/m^2

-------------------------------------------------

B. Electric field and magnetci fiedl are relayted by E = Bv

so magnetic fied B = E/v

B = 0.097/3e8

B = 3.232*10^-10 T

------------------------------------------------

C. total power P = IA

A = area v= 4pi r^2

P = 1.248 *10^-5 * 4pi * 2300*2300

Power P = 829.201 Watts

---------------------------------------------------------------------------------------------
Feel free to COMMENT on this answer if u seek furthur more CLARIFICATION. Do Rate and Encourage Me to HELP you More.

HAPPY LEARNING @ CHEGG

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.