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A solid cylinder of diameter 6.52 centimeter and mass 10.28 kilogram is rolling without slipping on a level surface. The speed of the center of mass is 5.49 cm/s. Evaluate what is its kinetic energy in Joules?
A 54-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.7 m/s, determine her altitude as she crosses the bar
A 25 gram ball is fired with an initial speed v1 toward a 125 gram ball that is hanging motionless from a 1.25 meter string. The balls have a perfectly elastic collision. As a result, the 125 gram ball swings out until the string makes an angle of..
A charge of -2.300 µC is located at (3.055 m, 4.501 m), and acharge of 1.800 µC is located at (-2.102 m, 0). Find the electric potential at the origin
Light of wavelength 589 nanometer is used to view an object under a microscope. If the aperture of the objective has a diameter of 0.900 centimeter, Determine what is the limiting angle of resolution
an electron is traveling straight along the x-axis in the positive x-direction. as time passes the electron slows down
An electron with velocity v=1.0x106 m/s is sent between the plates of a capacitor where the electric field is E=500V/m. Ifthe distance the electron travels through the field is 1.0cm howfair is it deviated (Y) in its path when it emerges from the ..
The escape speed from a distant planet is 46 km/s. If the acceleration of gravity on the planet surface is 14.0m/s2, Discuss is the radius of the planet?
A block of rock has dimensions of 2m x 2m x 2m and a density of 3000kg/m^3. The weight of the rock produces a normal stress on its bottom side. Calculate the magnitude of the normal stress on this side.
A container holds 2.3 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 7.2x10-3 kg bullet with a speed of 960 m/s. What is the Kelvin temperature of the gas
question a child throws a ball downward from a tall building. note that the ball is thrown not dropped and disregard
A 0.155 kilogram, 55.7 centimeter long uniform bar has a small 0.040 kilogram mass glued to its left end, Find how far from the left end should the fulcrum be located
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 15.0 , giving it a charge of -12.0. Find the electric field just outside the paint layer
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