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Suppose that the attraction between the moon and the earth were due to Coulomb forces rather than gravitational force. What would be the magnitude of the charge required if equal but opposite charges resided on both earth and moon? Mass of earth = 5.98Af-1024 kg; mass of moon = 7.35Af-1022 kg; earth-moon distance = 3.84Af-108 m.
A conducting sphere 10cm in diameter is first charged and left isolated at a potential of 100volts. calculate the charge (in coulombs) on the sphere and on the capacitor after being connected
A particle of mass ,m, is at rest at the end of a spring(force constant=k)hanging from a fixed support. At t=0 a constant downward forcd F is applied to the mass and acts for a time T. Show that after the force is removed, the displacement of the ..
a soccer player takes a penalty kick 11.0m from goal. to score she has to shoot the ball under the 2.44m high cross
Explain the changes in acceleration, velocity, and net acceleration Of a man jumping off a plane in a parachute. Describe the changes with valid scientific principles.
A solenoid of diameter 2 centimeter and length 15 centimeter is made of 50 centimeter long copper wire. Determine magnetic field produced by the solenoid when it carries a 10 Amp current
What fraction of the power radiated by the sun is intercepted by the planet Mercury? The radius of Mercury is 2.44 x 106 m, and its distance from the sun at the moment is 5.80 x 1010 m. Assume that the sun radiates uniformly in all directions.
An 80 centimeter long wire is made by welding a 2.30 mm diameter, 20 centimeter long copper wire to a 2.30 mm diameter, 60 centimeter long iron wire. Determine the resistance of the composite wire in milliohm
A person on a train is flipping a coin. The person on the train flips the coin such that its trajectory is straight up and down, with an initial velocity of 4.38m/s (as observed with the person flipping the coin). The train moves with a velocity of 1..
Beginning with S = klnNs and dU = TdS - PdV + μdN for the microcanonical ensemble, derive expressions for P, μ, G, F, U and H.
in the circuit shown in the following figure, the voltage across the R1=6.00 Ω resistor is 22V. What area the emf of the battery and the current through the 6.00 ohm resistor?
A person is riding a bicycle, and itswheels have an angular velocity of +25.0 rad/s. What is the angular acceleration of each wheel
If a Car of mass 1200kg traveling at 28m/s is brought to a complete stop in 4 seconds after the brakes lock the wheels. Find the average frictional force exerted on the car.
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