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A thermometer containing 0.10 g of mercury is cooled from 14.0° C to 8.1° C. How much energy was lost by the mercury in this process?
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A uniform sphere with mass 57.0kg is held with its center at the origin, What is the magnitude of the net gravitational force due to these objects on a third uniform sphere with mass 0.510kg placed at the point x= 4.00m, y = 0
A satellite is in a circular orbit very close to the surface of a spherical planet. What is density (mass/volume) of the planet
Light with a frequency of 2 X 10^15 Hz shines on a copper surface (=4.70 eV). What is the maximum kinetic energy of the photoelectrons
At the moment of ignition the mass of a rocket is 100 kg. For the first 10 s it burns fuel at the rate of 5 kg/s. find The magnitude of the force developed by its engine
A parallel-plate capacitor has plate area 2.5×10?3m2 and plate spacing 3.0×10?2m, Find the stored charge and energy when this capacitor is connected across a 60V battery
a skater spins with an angular speed of 12 rad/s with her arms outstretched. determine the percentage change in her kinetic energy
For the following circuit: V1 = 300 V, R1 = R4 = 10 ?, R2 = R3 = 20 ? and R5 = 40 ?. Find the equivalent resistance of the network
A Meteorite Strikes On October 9, 1992, a 27-pound meteorite struck a car in Peekskill, NY, leaving a dent 22 cm deep in the trunk. If the meteorite struck the car with a speed of 130 m/s , what was the magnitude of its deceleration, assuming it t..
if the radius of the equipotential surface of a point charge is 10.5 m, what are the magnitude and sign of the point charge
A glider of mass 0.155kg is moving to the right on a frictionless, horizontal air track with a speed of 0.760m/s. Find the magnitude of the final velocity of the 0.155kg glider
The frequency of light reaching Earth from a particular galaxy is 8% lower than the frequency the light had when it was emitted. What is the speed of this galaxy relative to the Earth
A railroad car with a mass of 2.46 x 10^4 kg moving at 3.25 m/s collides and joins with two railroad cars already joined together, each with the similar mass as the single car and initially moving in the same direction at 1.49 m/s.
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