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A car is moving with constant velocity v, and has wheels of radius R. The car drives over a clump of mud and the mud with mass m sticks to the wheel with an adhesive force of f perpendicular to the surface of wheel. At what angle does the piece of mud drop off the wheel?
The antenna on a cordless phone radiates microwaves at a frequency of 2.0 GHz. What is the maximum length of the antenna
Penny's eraser was accidentally dropped out of the window and falls into the street. The window is 9 m above the road. What is the speed of the eraser when it hits the floor
A volleyball is spiked so that it has an initial velocity of 16.5 m/s directed downward at an angle of 53.1 ° below the horizontal. determine the horizontal component of the ball's velocity
A skateboarder, starting from rest, rolls down a 12.5 m ramp. When she arrives at the bottom of the ramp her speed is 6.10 m/s. Determine the magnitude of her acceleration
A solar cell generates a potential difference of 0.094 V when a 560 ? resistor is connected across it, and a potential difference of 0.14 V when a 1100 ? resistor is substituted. What are the emf of the solar cell
A 2.20 kg frictionless block is attached to an ideal spring with forces constant 314N/m. At first the block has velocity -3.60 m/s and displacement 0.300-m.
Two small beads having positive charges 2q and q are fixed at the opposite ends of a horizontal insulating rod, At what position is the third bead in equilibrium
The loaded cab of an elevator has a mass of 3.0 x10^3 kg and moves 236 m up the shaft in 23s at constant speed. At what average speed does the force from the cable do work on the cab?
A person walks first at constant speed of 5.00 m/s along a straight line from point a to point band, What is her average speed over the entire trip
If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire
Find the average force of the water on the diver. The swimmer comes to a stop 4 m below the surface. Find the average net force acting on the diver as coming to a stop in the water.
The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W=59600 N. What is the magnitude of the lift force
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