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A train flat car is passing a loading dock at a speed of 8.0m/s. A 100 kg cargo crate is dropped on the bed of the flat car while it is in motion. The coefficients of friction between the crate and the flat car bed are 0.6 static and 0.3 kinetic.
a) What is the horizontal acceleration of the cargo crate as it increases speed to that of the train flat car?
b) How far does the cargo crate slide on the bed of the flat car until it comes to rest?
A 3440 kg statue is supported by a glass stand. The cross-section of the stand is square, 0.15 m to a side. Before the statue was placed on the stand, How much is the stand compressed by the statue
A wire of length l0 and cross-sectional area A supports a hanging weight W. Show that if the wire obeys Eq (11.7), it behaves like a spring of force constant AY/l0, where Y is the Young's modulus of the wire.
Two identical conducting small spheres are placed with their centers 0.395 m apart. Find the electric force exerted by one sphere on the other
At t = 0, a particle leaves the origin with the velocity of 9 m/ s in the positively direction and moves in the x y plane with a constant acceleration of (2.0i - 4.0j) m/ s2. At the instant the x coordinate of the particle is 15m, what is the spee..
A small light cylinder and a large heavy cylinder are released at the same time and roll down a ramp without slipping. Which one reaches the bottom first
A fancy sports car moves past an observer on a corner at a speed of 0.5c. what time interval will be shown on the driver's watch
It was a dark and stormy night, when suddenly you saw a flash of lightning. Three-and-a-half seconds later you heard the thunder. Given that the speed of sound in air is about 340 m/s, how far away was the lightning bolt?
White light is incident on a soap film (n = 1.30) in air. The reflected light looks bluish because the red light (? = 695 nm) is absent in the reflection, What is the minimum thickness of the soap film
Find the gauge pressure at a second point in the line 10.6m lower than the first if the pipe diameter at the second point is twice that at the first
Two identical diverging lenses are separated by 18 cm. The focal length of each lens is -8.0 cm. Determine the final image distance relative to the lens on the right
A cat dozes on a stationary merry-go-round, at a radius of 6.0 m from the center of the ride. What is the least coefficient of static friction between the cat and the merry-go-round
This can lead to adverse decisions on product costing and pricing. To address this issue, some authors have suggested using the Activity Based Costing method." Do you agree with the above statement? Discuss and give relevant examples to support you..
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