Work is done
A. By the component of the force parallel to the displacement
B. Only if the entire force is parallel to the displacement
C. By the component of the force perpendicular to the displacement
D. By all forces
Ans: A. By the component of the force parallel to the displacement
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to their own ship? a. 0.36 c b. 0.60 c c. 0.64 c d. 0.80 c e. 1.25 c
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Indicate whether the statement is true or false
If a ray of light passes from air into glass, the angle of incidence will be
a. less than the angle of refraction. b. sometimes greater and sometimes less than the angle of refraction. c. greater than the angle of refraction. d. equal to the angle of refraction.
A 4.00 kg object is moving at 5.00 m/s WEST. It strikes a 6.00 kg that is moving WEST at 2.00 m/s. The objects have a one-dimensional elastic collision in the EAST-WEST direction. The velocity of the 6.00 kg object after the collision is
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