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A roller-coaster car has a mass 50.0 kg. The car is released from rest at a height 45.0 m above the ground and the car encounters a loop of radius 15.0 m at ground level. The initial height 45.0 m is great enough so that the car never loses contact with the track
Find the kinetic energy K of the car at the top of the loop.
Find the minimum initial height h min at which the car can be released that still allows the car to stay in contact with the track at the top of the loop.
water flows through a horizontal tube of diameter 3.0cm that is joined to a second horizontal tube of diameter 1.9cm.
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At one point in a pipeline, water's speed is 3.30 m/s and the gauge pressure is 4.00×10^4 Pa. Find out the gauge pressure at a second point in the line 13.0 m lower than the first if the pipe diameter at the second point is twice that at the first.
when a bicyclist is riding at 32 kmh in still air he experiences a drag force air resistance of 25 n.a calculate the
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How long does it take the man to reach his in-laws- A man begins a car trip to visit his in-laws. The total distance is 60 miles, and he starts off at a speed of 60 miles per hour. After driving exactly 1 mile, he loses some of his enthusiasm for t..
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