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A string with a mass/length of 0.00200 kg/m is stretched between two points by a tension of 120 N. If the fundamental frequency is 660 Hz, then what is the distance among the two points?
the frequency of a wave increases. what happens to the distance between successive crests if the speed remains
Two uniform solid cylinders each rotating about its central(longitudinal) axis, have the same mass of 4.92 kg and rotate with the same angular speed of 118rad/s, but they differ in radius
An explosion breaks an object into two pieces, one of which has 1.5times the mass of the other. how much kinetic energy did each piece acquire
A sinusoidal current i= Icoswt has an rms value of I rms = 2.20 A. What is the current amplitude, What is the rectified average current
A tennis ball is hit with a vertical speed of 30 m/s and a horizontal speed of 25 m/s. How long will the ball remain in the air
A movable piston having a mass of8.00 kg and a cross-sectional area of 5.00 cm2 traps0.230 moles of an ideal gas in avertical cylinder. how much work is done on the gas
On aircraft carriers, catapults are utilized to accelerate jet aircraft to flight speeds in a short distance. One such catapult takes an 18,000 kg jet from 0-70 m/s in 2.5 s. What is the acceleration of the jet? How far does the jet travel as acceler..
a simple harmonic oscillator has a mass m0 on a spring of force constant k. the system is damped. it takes 10 cycles
a slide projector needs to create a 98-cm-high image of a 2.0-cm-tall slide. the screen is 300cm from the slide. assume
A tennis player hits a 58.0 {\rm g} tennis ball so that it goesstraight up and reaches a maximum height of 6.17 {\rm m}. How much work does gravity do on the ball on the way up
A sheet of an unknown material that is 1.223 +/-.003 micrometers thick is suspended in air. What is the index of refraction of the material
A laser beam is traveling through an unknown substance. When it encounters a boundary by air, the angle of reflection is22.0° and the angle of refraction is 41.0°. What is the index of refraction of the substance?
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