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If we assume that an electron is orbiting a proton just like the moon orbits the Earth, determine the electron orbital speed due to the gravitational attraction between itself and the proton. Take the orbital radius as 1.00 * 10^-10 m.
The coefficient of performance of a refrigerator is defined as the ratio of heat extracted from the refrigeration compartment to the work required to operate the refrigerator
you decide to try out your new rifle on a test range. the manufacturer says that a m 4 g bullet is fired initially at a
The capacitance of a cylindrical capacitor can be increased by:
Assuming that air resistance exerts a 95 N force on the person during the fall, identify the person's velocity just before hitting the net.
a bicycle wheel of radius 0.30 m is spinning at a rate of 60 revolutions per minute. what is the centripetal
A race car can be slowed with a steady acceleration of -11 m/s2 if the car is going 55m/s how many meters would it travel before it stops.
A fountain designed to spray a column of water 10 m into the air has a 3 cm diameter nozzle at ground level. find the necessary absolute pressure the pump must exert
A model rocket blasts off and moves upward with an acceleration of 13m/s^2 until it reaches a height of 27m, What is the total duration of the rocket's flight
In a Hall-effect experiment, a current of 2.9 A sent lengthwise through a conductor 0.89 cm wide, 3.1 cm long,, find the drift speed (in m/s) of the charge carriers
Determine the coefficient of kinetic friction between the block & the table.
A wooden raft has a mass of 69 kg. When empty it floats in water (density 1000 kg/m3) with 25% of its volume submerged. What mass of sand can be put on the raft
A 15kg crate is moved along a horizontal floor by pulling on it with a rope that makes a 30 degree angle with the horizontal. The tension in the rope is 200N and the crate slides a distance of 10m.
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