A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.584. Find the smallest value for the angle , such that the lower end of the board does not slide along the ground. (Please no downloadable files, my computer doesn't like them)
Answers: 2
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When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative
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What properties of a moving object are used in determining the object's energy of motion
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Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)
Answers: 1
A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizo...
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