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A car is parked at the top of a 50 {\rm m}-high hill. It slips out of gear and rolls down thehill.
How fast will it be going at the bottom?(Ignore friction.)
Capacitance and resistance network.
a. find the magnitude of the force required to keep a 280 lb barrel from sliding down a ramp inclined at 12.5 degrees
Equal charges are located at the vertices of a 3-4-5 triangle. The charge experiencing the largest force is located at what degree? Explain your answer
q1. an emf is induced in the conducting loop of wire 1.12 rm m long as its shape is changed from square to
an organ pipe is 0.155m long and closed at one end. the temperature of the air inside the pipe is 23 c.a calculate the
A 30 kg girl who's running at 3 m/s jumps on a stationary 10 kg sled on a frozen lake. How fast does the sledwith the girl on it move
Show that the horizontal resultant of these two forces on the lamp is zero. Work out the weight of the lamp.
A particle with a charge of q = -5.60 nC is moving in a uniform magnetic field of B= (-1.23 T) z. Calculate the x component of the velocity of the particle
A size-5 soccer ball of diameter 22.6 and mass 426 rolls up a hill without slipping, reaching a maximum height of 3.50 above the base of the hill. How much rotational kinetic energy did it then have
Workers are dragging a 610kg block up a dirt ramp that isinclined at 13o above the horizontal. They are exertinga 5600-N force parallel to the ramp. The block is accelerating at0.49 m/s2
A 70.0kg archer, standing on frictionless ice, shoots a 200g arrow at a speed of 200m/s. What is the recoil speed of the archer
While on a one-hour trip, a small boat travels 32 km north and then travels 45 km east. What is the magnitude of the boat's average velocity for the one-hour trip
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