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A bullet is fired into a block of wood sitting on a block if ice. The bullet has an initail velocity of 500m/s and a mass of 0.005 kg. The wooden block has a mass of 2kg and is initially at rest. The bullet remains embedded in the block of wood afterward.
a. Assuming that the momentum is conserved, find the final velocity of the block of wood (and bullet) after the collision.
b. What is the magnitude of the impulse that acts on the block of wood in this process?
c. Does the change in momentum of the bullet equal that of the block of wood? Explain thoroughly.
A circuit consists of two 150.?k? resistors in series with an ideal 12.0?V battery. Calculate the potential drop across one of the resistors
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Suppose the mica is 1.5 thick (and therefore fills the space between the plates).The charges on the plates are equal and opposite and of magnitude 380.
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find the magnitude and direction of the field at this point.
A 65-kg person wants to get to the top of a 2 m high ledge by swinging up to the top by running and grabbing a suspended rope suspended 5m above the ground by a tree.
A container of hot water at 50 degrees cools to 49 degrees in how many seconds when it is placed in a room that is t 20 degrees. use newton's law of cooling to find the time it will take for the container to cool from 50 degrees to 49 degrees.
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