As a space shuttle is launched into orbit, the direction of its acceleration

a. always points upward.
b. always points downward.
c. varies between pointing upward and pointing downward.
d. stays constant.


c

Physics & Space Science

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Which of the following has the most significant (densest) atmosphere?

A. Mercury B. Venus C. Mars D. Pluto E. Earth's Moon

Physics & Space Science

An ideal spring has a spring constant of 2500 N/m. is stretched 4.0 cm. How much work is required to stretch the spring by 4.0 cm?

A) 4.0 J B) 0.00 J C) 1.0 J D) 3.0 J E) 2.0 J

Physics & Space Science

A hospital patient has been given a sample of 131I , which has a half-life of 8.04 days. This sample is decaying at 5.9 times the acceptable level for exposure to the general public

How long must the patient wait for the decay rate of the sample to reach the acceptable level? A) 21 days B) 14 days C) 9.9 days D) 8.9 days

Physics & Space Science

You are in a train traveling on a horizontal track and notice that a piece of luggage starts to slide directly toward the front of the train. From this observation, you can conclude that this train is

A) speeding up. B) slowing down. C) changing direction. D) speeding up and changing direction. E) slowing down and changing direction.

Physics & Space Science