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The force stretching the D string on a certain guitar is 6400N. The string's linear mass density is 0.01kg/m. What is the speed of waves on the string?
A bicycle wheel of radius 20 cm is mounted at the middle of an axle 43 cm long. The tire and rim weigh 24 N. The wheel is spun at 13 rev/s, What is the angular speed of precession
bob whose mass is 36 kg stands at the center of a 200 kg merry-go-round that is spinning at 30 rpm. What is the spinning rate now
A telescope can be used to enlarge the diameter of a laser beam and limit diffraction spreading. what is the minimum angular spread of the beam
A system consisting entirely of electrons and protons has a net charge of 1.64×10?15C, How many electrons and protons are in this system
Starting from rest, your friend dives from a high cliff into a deep lake below, yelling in excitement at the thrill of free-fall on her way down. How long has your friend been in the air when she emits the yell whose frequency shift you hear
Two stationary positive point charges, charge 1 of magnitude 3.45 nC and charge 2 of magnitude 1.50 nC, are separated by a distance of 52 cm. An electron is released from rest at the point midway between the two charges, and it moves along the lin..
A string on a guitar is stretched between two points 35.0 cm apart with a tension of 65.0 N. The velocity of wave propagation on the string is
A dentist's drill starts from rest. After2.80s of constant angular acceleration, it turns at a rate of2.46104rev/min. Find the drill's angular acceleration
A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4 m down a q = 28° incline. The sphere has a mass M = 5.2 kg and a radius R = 0.28 m. What is the magnitude of the frictional force on the sphere?
A potter's wheel having a radius 0.55m and a moment of inertia 12kg•m2 is rotating freely at 51 rev/min. The potter can stop the wheel in 7 s by pressing a wet rag against the rim and exerting a radially inward force of 67N. Find out the effectual co..
A laser beam is incident on a 600 lines per millimeter diffraction grating. determine angular deflection of the first-order bright fringe
A collision between two protons produces three new particles: p + p --->p + + + 0 + 0. The rest energies of the new particles are + (139.6 MeV), 0 (1116 MeV), 0 (497.7 MeV). Note that one proton disappears during the reaction. How much of the protons..
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