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A hollow cylindrical copper pipe is 1.40m long and has an outside diameter of 3.90cm and an inside diameter of 2.60cm . How much does it weigh?
A horizontal 790-N merry-go-round of radius 1.60 m is started from rest by a constant horizontal force of 55 N applied tangentially to the merry-go-round
A football punter accelerates a football from rest to a speed of 10 m/s during the time in which his toe is in contact with the ball (about 0.17 s)
A 10.0-m long string is moved up and down with simple harmonic motion with a frequency of 33 Hz. Determine the velocity of the wave on the sting
The fundamental frequency of an open organ pipe corresponds to the middle C (261.6 Hz on the chromatic musical scale). The third resonance of a closed organ pipe has the same frequency. (Assume that the speed of sound in air is 343 m/s.) What is the ..
A bicyclist starts from rest at the top of a hill and rolls down the hill without pedaling. what is the bicyclist's speed at the bottom of the hill
A bullet of 0.0500 kg is fired into a block of wood. Knowing that the bullet left the gun with a muzzle velocity of 350. m/s, find The average force required to stop the bullet
A patient is going to be prescribed bifocals which will be 3.20 cm from the eye. what is the patient's near point
A particle is in uniform circular motion about the origin of an xy coordinate system, moving clockwise with a period of 7.70 s. what is its velocity in unit-vector notation
An 9.00 point mass and a 14.0 point mass are held in place 50.0 apart. Find the magnitude of the acceleration of the particle and direction
A 2600 kg automobile is traveling at 20 m/s when the brakes are applied. The braking force is 10192 N. Use work-energy methods for this problem. Determine the initial kinetic energy of the automobile
Suppose a 7.1 eV electron and a 9.77 eV positron collide, Find the frequency of these new photons
q1. a rock is projected from the edge of the top of a building with an initial velocity of 14 ms at an angle of 36
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