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A ball is tossed in the air and released. It moves up, reverses direction, falls back down again, and is caught at the equal height it was released.
a) Considering the time interval after the ball is released and before it is caught, find where does the gravitational potential energy of the ball have its maximum value? Minimum value? Explain?b) when does the kinetic energy of the ball have its maximum value? Minimum value? Explain?c) Define what about the mechanical energy of the ball? What can you say about its value at the locations described in your answers (a) and (b)?
A rock weighing 400 N sits on the edge of a 60 m cliff. How much potential energy does it have
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The voltage marked on a light bulb is usu- ally either 110 or 120 V. Find the current flowing through the light bulb
A converging lens with a focal length of 88.0 cm forms an image of a 3.20cm -tall real object that is to the left of the lens. Where are the object and image located in relation to the lens
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A drop of water on a countertop reflects light from a flower held 3.0cm directly above it. The flower's diameter is 2.0cm, and the diameter of the flower's image is 0.10cm. What is the focal length of the water drop, assuming that it may be treated a..
A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope inclined at 19.6° above the horizontal. How much work is done by the rope on the sledge
A cyclotron designed to accelerate protons has a magnetic field of magnitude 0.590 T over a region of radius 1.40 m, What is the cyclotron frequency
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