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On planet Tehar, the free-fall acceleration is the same as that on Earth, however there is also a strong downward electric field that is uniform close to the planet's surface. A 2.00 kg ball having a charge of 5.00 µC is thrown upward at a speed of 20.1 m/s. It hits the ground after an interval of 4.10 s. What is the potential dissimilarity between the starting point and the top point of the trajectory?
A copper cylinder with a temperature of 277 K is found to emit 179 J of energy each second. what is its surface area
a point charge of -5.20 x 10-6 c is located at the origin. find the electric fielda on the x axis at x 3.00 m.b at the
A group of astronomers have observed a star "S2" in a 15.2-year orbit around the center of the galaxy. They measured the period of revolution T = 15.2 years, Calculate the mass of the compact object about which S2 is revolving
a golfer imparts a speed of 30.3 ms to a ball and it travels the maximum possible distance before landing on the green.
a 2.0 kg object is dropped from a 4.0 meter height. Calculate the speed of the ball prior to striking the ground
A 0.4 kg mass attached to a spring is pulled back horizontally across a table so that the potential energy of the system is increased from zero to 150 J. find the kinetic energy of the system after the mass is released
A particle is in uniform circular motion about the origin of an xy coordinate system, moving clockwise with a period of 7.70 s. what is its velocity in unit-vector notation
the tractor-trailer unit is moving down the incline with a speed of 6.8 mihr when the driver brakes the tractor to a
a 15 enriched 235u-graphite moderated reactor has been operating at equilibrium for some time. the average neutron flux
Rocket-powered sleds are used to test the human response to acceleration. what is the distance that the sled travels
A lens with 50-cm focal length produces a real image the same size as the object. How far from the lens is the image
A tennis ball is struck at the base line of the court, 12.5 m from the net. How far beyond the net will the ball hit the ground
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