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Physics, 22.06.2019 11:00
Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and
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Physics, 24.06.2019 00:30
A2,000-kilogram railroad car moving at 8m/s to the right collides with a 6,000-kilogram railroad car moving at 3m/s to the west. if the cars couple together, what is their velocity after the collision?
Answers: 1
Physics, 24.06.2019 05:40
Ramon and sally are observing a toy car speed up as it goes around a circular track. ramon says, “the car’s speeding up, so there must be a net force parallel to the track.” “i don’t think so,” replies sally. “it’s moving in a circle, and that requires centripetal acceleration. the net force has to point to the center of the circle.” do you agree with ramon, sally, or neither
Answers: 3
What is the formula of iron(iii) oxide?...
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