Physics, 30.10.2019 22:31 2003loganreed

When an astronaut travels to different planets, which of the following planets will the astronaut’s mass stay constant from what is measured on earth? a)jupiter b) mars c) mercury d) all the different planets

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Answer from: LucindaKamala

D) All the different planets

Explanation:

The mass of an object is an intrinsec property of the object, that gives a measure of the "amount of matter" contained in the object.

Therefore, the mass of an object (or of a person) does not depend on the location of the object: that means, it remains the same on different planets.

So, the mass of the astronaut will remain the same in all the different planets.

Instead, the weight of an object is given by:

W=mg

where

m is the mass

g is the acceleration of gravity

Since the value of g is different on different planets, then the weight of the astronaut will be different on the different planets.

Answer from: Quest

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this. hope that you like the video and that it explains more in detail to you.

that is the link.

Answer from: Quest

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction

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