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jasenka [17]
3 years ago
13

An astronaut goes to Mars to do some experiments. Explain why her mass stays the same but her weight changes.

Physics
1 answer:
Snowcat [4.5K]3 years ago
6 0
Because mass does not change from place to place but weight does change from place to place... why? because weight is the amount of gravitational force on an object and mass is the amount of matter in an object. mars has less gravitational force so an object will weigh less than it really weighs there
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2 years ago
Why does lifting one end of the track lead to constant acceleration?
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3 years ago
Help with this I can’t come up with anything
TEA [102]

Answer:

His third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A. ... In reaction, a thrusting force is produced in the opposite direction.

Explanation:

8 0
3 years ago
Car A, moving in a straight line at a constant speed of 20. meters per second, is initially 200 meters behind car B, moving in t
MA_775_DIABLO [31]
First, let's express the movement of Car A and B in terms of their position over time (relative to car B)
For car A: y=20x-200   Car A moves 20 meters every second x, and starts 200 meters behind car B
For Car B: y= 15x      Car B moves 15 meters every second and starts at our basis point

Set the two equations equal to one another to find the time x at which they meet:
20x - 200 = 15x
200 = 5x 
x= 40
At time x=40 seconds, the cars meet. How far will Car A have traveled at this time? 
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8 0
3 years ago
Identify the situations that have an unbalanced force. Check all that apply. A baseball speeds up as it falls through the air. A
viktelen [127]
<span>A baseball speeds up as it falls through the air.
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of gravity is stronger than the upward force of air resistance.

A soccer ball is at rest on the ground.
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are balanced.
The downward force of gravity on the ball and the upward force
of the ground are equal.


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No. The skater's speed and direction are not changing, so he is not
accelerating.  That tells us that the forces on him are balanced.

A bumper car hit by another car moves off at an angle.
Yes.  The direction in which the car was moving changed. 
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at least at the moment of impact. 

A balloon flies across the room when the air is released.
Yes.  The balloon was not moving. But when the little nozzle was
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5 0
3 years ago
Read 2 more answers
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