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An electron, mass = 9.11 X 10-31kg, is moving in a circular orbit of radius 5 X 10-11m by a frequency of 7.5 X 1015 revolutions per second.
1. What is the speed of the electron?
2. What is the magnitude of the net force acting on the electron?
A muon formed high in Earth's atmosphere travels towards Earth at a speed v = 0.97c for a distance of 4.1 km as measured by an observer at rest with respect to Earth. Compute the gamma factor associated with the muon
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an elevation must be established on a benchmark on an island that is 2536.98 ft from the nearest benchmark on the lakes
a 98-g piece of copper is heated in a furnace to a temperature tc. the copper is then inserted into a 150-g copper
A fox locates its prey under the snow by slight sounds rodents make. how long the fox is in the air
A barber's chair with a person in it weighs 2100N. The output plunger of a hydraulic system begins to lift the chair when the barber's foot applies a force of 55N to the input piston. Neglect any height difference between the plunger and the piston. ..
An elastic cord is 64 cm long when a weight of 56 N hangs from it and is 69 cm long when a weight of 83 N hangs from it. What is the "spring" constant of this elastic cord.
A bar magnet is oriented with its magnetic dipole moment at 56.1 degree to the direction of a 0.0791 -·T magnetic field, causing a torque of 0.00357 N m to act on it Find the magnitude of the magnet's magnetic dipole moment.
assuming the specific heat of the body is the same as water calculate the temperature rise due to a total body dose of
A water-skier is being pulled by a tow rope attached to about. Obtain the work done by the net external force acting on skier
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