Astron chapter 4

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Compared to their values on Earth, on another planet your mass and weight would be?

mass would be the same but your weight would be different

If you are standing on a scale in an elevator, what exactly does the scale measure?

the force you exert on the scale

your weight will be greater than normal when the elevator is moving upward with increasing speed. For what other motion would your weight also be greater than your normal weight?

elevator moves downward while slowing in speed

To make a rocket turn left, you need to:

fire an engine that shoots out gas to the right.

the car is accelerating when

going around a circular track at a steady 100 miles per hour.

Suppose you are in an elevator. As the elevator starts upward, its speed will increase. During this time when the elevator is moving upward with increasing speed, your weight will be __________.

greater than your normal weight at rest

Suppose you are in an elevator that is moving upward. As the elevator nears the floor at which you will get off, its speed slows down. During this time when the elevator is moving upward with decreasing speed, your weight will be __________.

less than your normal weight at rest


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