Calculate the coefficient of kinetic friction
A block with a mass of 10g is pulled at a constant speed across a horizontal tabletop with a spring scale. the scale reads 65.3N. calculate the coefficient of kinetic friction.
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Two horizontal forces, 240 N and 156 N, are exerted on a canoe. If the these forces are applied in the same directions, find the net horizontal force on the crate.
By varying the angle, however, you should have seen some small differences in your period, especially for 60°. How can you explain this apparent variation of the period with angle?
Two trains, each having a speed of 35 km/h, are headed at each other on the same straight track. A bird that can fly 60 km/h flies off the front of one train when they are 68 km apart and heads directly for the other train. On reaching the other
The distance between two consecutive nodes of a standing wave is 24.2 cm. The hand generating the pulses moves up and down through a complete cycle 2.84 times every 8.38 s. Find the velocity of the wave.
A curve of radius 60 m is banked for a design speed of 100 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely make the curve?
Two charged pith balls are suspended on very light 10.5 cm strings. Each has a mass 11.0g. In equilibrium, the total angle between the strings is 35 degrees. Draw a free body diagram for one of the pith balls and clearly label all forces with magn
If S2 moves with a speed of 0.7c with respect to a rest frame S1, find the length of the meterstick as measured in frame S1 according to classical physics.
He throws the ball in your direction, and it floats toward you at a lazy 20 {rm m/s}. What is the speed of the truck?
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