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How much would a 185-pound astronaut weigh on the moon? Use an equation to explain how you know. Round your answer to the nearest hundredth.

A) 30.91 lbs; weight = mass x gravity
B) 48.39 lbs; weight = mass x gravity
C) 77.42 lbs; weight = mass x gravity
D) 100.52 lbs; weight = mass x gravity

Answer :

Final answer:

The weight of an object changes with gravity but its mass remains constant. Since the moon's gravity is one-sixth of Earth's, a 185-pound astronaut would weigh about 30.83 pounds on the moon. The closest answer from the given options would be a) 30.91 lbs.

Explanation:

To find out how much a 185-pound astronaut would weigh on the moon, we need to understand that weight changes based on gravity, whereas mass remains constant. If we consider that the force of gravity on the moon is about one-sixth the force of gravity on Earth, we can apply this to the astronaut's weight. So, the equation becomes: Weight on Moon = Weight on Earth x (1/6).

Let's calculate it:

Weight on Moon = 185 lbs x (1/6)

Therefore, the weight of a 185-pound astronaut on the moon equals 30.83 lbs, rounded to the nearest hundredth, which makes a) 30.91 lbs the closest answer according to the given options.

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