A 4,000 kg satellite is traveling in a circular orbit 200 km above the surface of the Earth. A 3.00 gram marble is dropped inside the satellite. What is the acceleration of the marble as viewed by the observers on the Earth? 
A. 9.80 
B. 9.24
C. 8.90
D. 8.62
E. 7.95
B. 9.24
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For a northern Hemisphere observer the __________ __________ moon is visible in the south-eastern sky just after sunset
Fill in the blank(s) with correct word
Mars' atmosphere is mostly carbon dioxide. Why does it not experience a runaway greenhouse effect like Venus?
A) Mars is protected by its magnetic field. B) Mars does not have enough additional water vapor to magnify the warming. C) Mars' atmosphere is too thin. D) Mars has a CO2 cycle like Earth that regulates the amount of carbon dioxide.
Which of the following substances has the greatest specific heat?
a. copper b. ice c. water d. steam e. Ice, water, and steam have equal specific heats since they are the same material, and this specific heat is greater than that of copper.
Which situation has the least magnitude of angular momentum about the origin?
A. A 2 kg mass travels along the line y = 3 m with speed 1.5 m/s. B. A 1 kg mass travels in a circle of r = 4.5 m about the origin with speed 2 m/s. C. A disk with I = 3 kg·m2 rotates about its center (on origin) with ? = 3 rad/s.
1.A 2.B 3.C 4.Both A and B 5.Both A and C 6.Both B and C 7.All have the same magnitude angular momentum