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Sound is generated from standing waves in two tubes which are both open at both ends and are identical, apart from one tube having length L and the other tube being only seven eighths as long. If the speed of sound is v, what is the expression for the beat frequency produced by the two fundamental (1st harmonic) frequencies?
A flywheel having constant angular acceleration requires 4.6-{rm s} to rotate through 162 rad. Its angular velocity at the end of this time is 100 rad/s. Find out the angular velocity at the beginning of the 4.6s interval; the angular acceleration..
A television is tuned to a station broadcasting at a frequency of 7.00×10^7Hz . For best reception, the rabbit-ear antenna used by the TV should be adjusted to have a tip-to-tip length equal to half a wavelength of the broadcast signal.Find the op..
q. a motorcycle is traveling up one side of a hill and down the other side. the crest of the hill is a circular arc
A small steel ball bearing with a mass of 17.0 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.25 m. Calculate the horizontal distance the ball would travel
A neutron star has a mass of 2.0 1030 kg (about the mass of oursun) and a radius of 4.8 103 m (about the heightof a good-sized mountain). Suppose an object falls from rest nearthe surface of such a star. How fast would it be moving after ithad fall..
A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Calculate the mass of the target ball
A soccer ball with mass 0.446 kg is initially moving with speed 1.40 m/s. Over what distance must the player's foot be in contact with the ball to increase the ball's speed to 6.40 m/s
q1. light passes through a 230 linesmm grating and is observed on a 1.0m wide screen located 1.3m behind the grating.
The orbit of the moon takes 27.321661 days (you should convert to seconds!) at a radius of 384,748 km, Calcualte the orbital speed of the moon
Consider a system of three noninteracting identical bosons that moves in a common external one-demention harmonic oscillator potential. Find the energy level and wave functions of the ground state, the first state, and the second state of the system.
A car with a mass of 1000kg is traveling with a velocity of12m/s.The friction due t air resistance is 750N. What is the magnitude of the force needed(bythe engine) to accelerate the car to 18.9m/s in 4.5s? What is the magnitude of the force needed to..
A string of mass 0.0003kg/m and 0.5m long is vibrating 200 cycles per second. What must be the tension? What hanging mass would generate this tension? I got 12N for tension. Is this correct? And how would you solve for hanging mass.
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