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Praxis II General Science

Category - Physics

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William weighs 150 lbs. on Earth. If William travels to Mars, where the gravity is 1/4^th that of Earth, how much will he weigh?

25 lbs.
37 lbs.
50 lbs.
67 lbs.
75 lbs.

Explanation

Answer: B - Weight is a function of mass and force, in this case gravitational force. Thus, weight = mass * g. If the gravity is 1/4^th, then the weight will also be 1/4^th, or in this case 37.5 lbs.

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