A satellite encircles Mars at a distance above its surface equal to 3 times the radius of Mars. If gm is the free-fall acceleration at the surface of Mars, what is the free-fall acceleration at the location of the satellite?
A) gm/9
B) 0
C) gm
D) gm/3
E) gm/16
E
Physics & Space Science
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due to the entire loop? 
A. ?0I/4?R B. ?0I/4R C. ?0I/8R D. ?0I/2R E. ?0I/R F. Zero
Physics & Space Science
The process of losing water from the soil to the air from both the ground and from plants is called
What will be an ideal response?
Physics & Space Science
A string with a mass/length of 0.00200 kg/m is stretched between two points with a tension of 120 N. If the fundamental frequency is 440 Hz, then what is the distance between the two points?
A. 17.5 cm B. 20.3 cm C. 27.8 cm D. 30.0 cm E. 35.0 cm
Physics & Space Science
Which part of the Sun is observable during a total solar eclipse?
a. core b. solar disk c. sun spots d. photosphere e. chromosphere
Physics & Space Science