KKHeffner02
04.03.2021 •
Physics
The figure shows two objects, Q and R, before and after they collide.
before
after
Q
R
R
The arrows show the direction of movement of the objects.
The arrows are not to scale.
Explain how momentum is conserved in the collision.
Use Newton's third law and Newlon's second law in your answer.
Newton's second law can be written as
change in momentum
force =
time
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Ответ:
Explanation: A bar of an unknown metal has a length of 0.975 m at 45°C and a length of 0.972 m at. 23°C.