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According to a stationary observer, a moving clock appears to run at a rate that is 0.22 times the rate of a clock at rest. How fast is the clock moving?
A rifle has a mass of 4.5kg and it fires a bullet of mass 10.0g at a muzzle speed of 820 m/s. What is the recoil speed of the rifle
A loudspeaker emits energy at the rate of 53W, What is the intensity of sound 19m from the speaker
A uniform disk of radius 0.46 m is mounted on a frictionless, horizontal axis. A light cord wrapped around the disk supports a 0.58 kg object. When free from rest the object falls with a downward acceleration of 4.1 m/s squared.
Suppose that in a hypothetical oil-drop experiment you measure the following values for the charges on the drops: 4.11*10^-19C, 6.85*10^-19C, 2.74 *10^-19C, 1.10*10^-18C, and 9.59*10^-19 C.
Explain the characteristics of supersonic motion and the formation of shock waves. Explain the formation of beats by the superposition of sounds of two closely spaced frequencies
An inquisitive physics student and mountain climber climbs a 55 m cliff that overhangs a calm pool of water. At what time after release of the first stone will the two stones hit the water
Calculate the speed of a proton that is accelerated from rest through an electric potential difference of138V. Calculate the speed of an electron that is accelerated through the same potential difference.
Two very large charged parallel metal plates are 10.0 apart and produce a uniform electric field of 2.80×106 between them. How much work has the electric field done on this proton
A student pushes a loaded sled whose mass m is 240kg for a distance d of 2.3m over the frictionless surface of a forzen lake. if the sled starts from rest, what is its final velocity
A woman with mass of 58 kg stands at the rim of a horizontal table having a moment of inertia of 430 kgm2 and a radius of 2.1 m. The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center.
Determine the net charge contained within the cube.
A closed organ pipe is 0.5m long. If the speed of sound is 340m/s , What is the pipe's fundamental frequency
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