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You let a ball roll from rest from the top of a ramp sitting on a table. If the top of the ramp is 14 cm above the top of the table, how fast is it moving when it reaches the bottom? Use g=9.8m/s/s.
An x-ray tube is operated at 45000 V. Find the minimum wavelength of the radiation emitted by this tube
A hot-air balloon is rising straight up with a speed of 1.82 m/s, How much time elapses before the ballast bag hits the ground
An object on the ground is lunched at 10.0m/s at an angle of 75.0 above the horizontal. what is the horizontal displacment of the object
A person is riding a bicycle, and its wheels have an angular velocity of 11.5 rad/s. How much time does it take for the bike to come to rest
Find the focal length of a glass lens that has an index of refraction equal to 1.66, a concave surface that has a radius of curvature of magnitude 108 cm
Professional baseball pitchers can deliver a pitch which can reach the blazing speed of 100 mph (miles per hour). how much kinetic energy does the ball have
The rope is initially swung around the axis, causing the wood to have a tangential velocity of 4.0 m/s. After one revolution the wood is observed to have a speed of only 2.1 m/s.
An object 2.0mm high is placed 12cm from a convex mirror of radius of curvature 12c, Determine the image distance using the mirror equation 1do+1di=1f
A long wire is known to have a radius greater than 4.0 mm and to carry a current that is uniformly distributed over its cross section. What is the radius of the wire
A stone is thrown vertically upward at a speed of 28.40 m/s at time t=0. A second stone is thrown upward with the same speed 2.570 seconds later. At what height do the two stones pass each other
If an automobile rounds this curve at 30 {rm m/s}, illustrate what is the minimum coefficient of static friction between tires and road needed to prevent skidding?
A projectile of mass 2.0 kg approaches a stationary target body at 5.0 m/s. find the magnitude of the momentum of the target body
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