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An electron moves to the right with a speed of 0.83c relative to the laboratory frame. A proton moves to the left with a speed of 0.64c relative to the electron. Find the speed of the proton relative to the laboratory frame.
c
An 85 kg jogger is heading due east at a speed of 2.3 m/s. Find the magnitude and direction of the sum of momenta of the two joggers
A horizontal plywood disk with mass 7.40kg and diameter 1.12m pivots on frictionless bearings about a vertical axis through its center. Find the magnitude and direction of the angular velocity of the disk relative to the earth
A 1945-W electric hair dryer is designed to work in the United States, where the ac voltage is 120 V rms. What power is dissipated in the hair dryer
White light is incident normally on a thin soap film having an index of refraction of 1.34. What is the thickness of the soap film
The current in a 51 resistor is 0.14 A. This resistor is in series with a 28 resistor, and the series combination is connected across a battery
Imagine two 5.0 g bags of protons, one at the earth's north pole and the other at the south pole. Calculate the gravitational attraction that each bag exerts on the other
A roller coaster, traveling with an initial speed of 15 meters per second, decelerates uniformly at -7.0 meters per second per second to a full stop
Calculate the acceleration of a bus that goes from 57.6 km/h to a speed of 99.79 km/h in 10 s
A 0.740 m long brass pendulum experiences a 20.0°C temperature increase, Find the ratio of the change in period to the original period, What is the change in the period
Starting from rest, a 96-kg firefighter slides down a fire pole. The average frictional force everted on him by the pole has a magnitude of 790 N, How far did he slide down the pole
questiona 1.00 ball is thrown directly upward with an initial speed of 16.0. a graph of the balls gravitational
Ultraviolet light is incident normally on the surface of a certain substance. The binding energy of the electrons in this substance is 3.44 eV. How many electrons are emitted from a square centimeter of the surface each second
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