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1) a thin spherical shell of mass 0.25kg and radius 0.15 m is released from rest from the top of a 3.0-m high ramp. What would the linear speed be at the bottom if it rolls without slipping?
2) a standing wave is in a open-end tube as shown. the tube legth is L = 1.80m . Determine
a) the wavelength of the standing wave
b) fundamental frequency
An object of mass 0.77 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a speed of 16.2 m/s. Find the magnitude of the average force acting on the ball
Two 0.20-H inductors and one 0.44-H inductor are connected in series across the terminals of a 60.0-Hz ac generator. What is the total inductive reactance of this circuit
Two cars are traveling along a straight line in the same direction, the lead car at 25.2m/s, How long does it take for the chasing car to stop
A man throws a baseball straight up in the air at 19.6 m/s. How many seconds does it take to reach the top
An athlete performs a Romanian deadlift with 197 kg bar from floor to hips (0.75 m) in 2.1 seconds. How much mechanical power is generated from the athlete
At first the spacecraft and the asteroid are at rest, 450m apart. How much time does it take for the ship and the asteroid to meet?
Study of the fragment
A 1,500 kg jeep is parked on a 30 degree slope, facing uphill. Find the normal force exerted by the road on the front wheels and on the rear wheels
An 52.0 N box of clothes is pulled 6.7 m up a 30.0° ramp by a force of 107 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, compute the change in the box's kinetic energy.
A golf ball of mass 4.50 10-2 kg is struck by a club. Compute the average force the club exerts on the ball by finding its average acceleration
A spacecraft flies in the horizontal direction at a speed of v=0.980c, What is the slope angle to an astronaut on the spacecraft
Suppose 47.5 cm of wire is experiencing a magnetic force of 0.7 N. What is the angle in degrees between the wire and the 1.25 T field if it is carrying a 6.5 A current
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