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Q. A small remote-control car with a mass of 1.7 moves at a constant speed of = 12.0 in a vertical circle inside a hollow metal cylinder that has a radius of 5.What is the magnitude of the normal force exerted on the car by the walls of cylinder at point A (at the bottom of the vertical circle)?
Q. A pendulum of length 9.00 m is held out to point A. At the vertical position, an overhang effectively cuts the length of the pendulum by an amount equal to 3m. (That is, 3.0 m is no longer free to swing.) How long does this pendulum take for one oscillation? Suppose that all displacement angles are small.
A light, flexible cable is wrapped around a solid cylinder with mass 3.5 kg and radius 0.8 meters.
q1. in a head-on collision a car stops in 0.28 from a speed of 18. the driver has a mass of 73 and is fortunately
An electric device, which heats water by immersing a resistance wire in the water, What is the resistance of the heater wire
A 55-kg swimmer is standing on a stationary 210-kg floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.6 meter per second relative to the shore. Calculate the recoil velocity that the raft would have if there were ..
A 31g ball rolls around a 46cm -diameter L-shaped track, shown in the figure, at 56rpm. Rolling friction can be neglected. find the magnitude of the net force of the track on the ball
Find the acceleration of gravity on the surface of Mercury and find the acceleration of gravity on the surface of Venus.
A 2.31?102g piece of copper at a temperature of 401.K and a 1.07?102g piece of aluminum at a temperature of 2.17?102K, What is the equilibrium temperature of the mixture
What is the amplitude of the oscillations . Could you think of a simple method for determining the focal length of a converging lens.
When playing fortissimo (very loudly), a trumpet emits sound energy at a rate of 0.750 W out of a bell (opening) of diameter 13.2 cm. What is the sound intensity level right in front of the trumpet
The transverse displacement (y) of a wave is given as a function of position (x in meters) and time (t in seconds) by the expression to the right. Determine the wavelength, frequency, period, and phase constant of this waveform.
A 2.50×106 ? resistor and a 2.00 ?F capacitor are connected in series with an ideal battery of 5.00 V. How much energy was provided by the battery
A uniform soda can of mass 0.138-kg is 11.80-cm tall and filled with 1.30-kg of soda. Then small holes are drilled in the top and bottom (with negligible loss of metal) to drain soda. (Initially the soda can is full.)
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