At what rate does this force do work on the block
A 25.0-{rm kg} crate is pulled northward at a constant speed of 20.0 {rm m}/{rm s}. One of the forces acting on the block acts in a direction 60.0 ^circ east of north and has magnitude 15.0 {rm N} At what rate does this force do work on the block?
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A baseball of mass 0.144 have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
In the Week Eight Learnscape, you blog about sharing information online, among other things. Do you think blogging and the increased exposure to informal writing has an effect on students’ academic writing quality? Explain your answer.
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Three equal point charges, each with charge 1.95 mu C, are placed at the vertices of an equilateral triangle whose sides are of length 0.350 m. What is the electric potential energy U of the system?
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