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When a train's velocity is 12.0 m/s eastward, raindrops that are falling vertically with respect to the earth make traces that are inclined 30.0 degree to the vertical on the windows of the train.
a. What is the horizontal component of a drop's velocity with respect to the earth?
b. What is the horizontal component of a drop's velocity with respect to the train?
c. What is the magnitude of the velocity of the raindrop with respect to the earth?
d. What is the magnitude of the velocity of the raindrop with respect to the train?
You are given a container with 25.7 g of hydrogen atoms. What is the total charge on the electrons in the container? what is total charge on protons?
A 0.500-kg particle has a speed of 2.30 m/s at point A and kinetic energy of 7.40 J at point B a) what is its kinetic energy at pt A. b) what is its speed at pt B.
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 15-g nail
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A 0.10-kg cart traveling in the positive x direction at 10.0 m/s collides with a 0.30-kg cart at rest. What is the velocity of the 0.10-kg cart
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