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When a falling meteoroid is at a distance above the Earth's surface of 3.10 times the Earth's radius, find its acceleration due to the Earth gravitation?
A 101-kg horizontal platform is a uniform disk of radius 1.97 m and can rotate about the vertical axis through its center. A 67.9-kg person stands on the platform at a distance of 1.19 m from the center and a 27.3-kg dog sits on the platform near the..
A sodium surface, which has a work function of 2.46eV is illuminated with a wavelength = 300nm light. What is the deBroglie wavelength of these electrons
Two infinite, parallel, uniformly charged plates with charge densities +sigma and +3sigma are separated by a distance L, what is the potential of the plate on the left
A 0.21-m-long, 0.15 kilogram thin rigid rod has a 0.22 kilogram mass stuck on one of its ends and a 0.080 kilogram mass stuck on the other end. Find the magnitude of the angular momentum of the system
a copper pot with a mass of 0.475 kg contains 0.195 kg of water and both are at a temperature of 21.0 degree c . a
Before landing astronauts on the moon, the Apollo 11 space vehicle was put into orbit around the moon. Calculate the ratio of densities (moon to earth)
consider two identical particles in a 1D infinite square well of length L. write the symmetric and anti-symmetric spatial ground state wave functions
A tuning fork of unknown frequency makes six beats per second with a standard fork of frequency 481.0 Hz. What is the frequency of this fork
A fireman 46.0 m away from aburning building directs a stream of water from a ground-level firehose at an angle of 30.0° above the horizontal. If the speed of thestream as it leaves the hose is 40.0 m/s, at what height will the stream of water strike..
Two microscope slides are placed one on top the other. They are in contact at one end but a hair separates them at the other end. What is the thickness of the hair
An 0.8kg baseball with an initial velocity of 40m/s is hit with a baseball bat so that its recoil velocity is 60m/s in the exact opposite direction. what is the average force the bat puts on the ball
A surface whose work function is 2.8 eV is illuminated by a light whose wavelength is 116 nm. What is the maximum velocity of a photoelectron emitted from the surface? The speed of light is 3 × 10^8 m/s and Planck’s constant is 6.63 × 10?34 J · s. An..
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