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A solid cylinder (radius = 0.160 m, height = 0.200 m) has a mass of 14.6 kg. This cylinder is floating in water. Then oil (the specific gravity of the oil = 0.897) is poured on top of the water until the situation shown in the drawing results. How much of the height of the cylinder is in the oil?
Find out the least compression of the spring
The electric field strength is 1.90×104N/C inside a parallel-plate capacitor with a 1.10mm spacing. What is the electron's speed when it reaches the positive plate
The 73 kg student balances an 1100 kg elephant on a hydraulic lift. Inside the lift is filled with oil and the diameter of the piston the elephant is standing on is 2.0 m, What is the second student's mass
An X-ray photon with a wavelength of 0.240 nm scatters from a free electron at rest. Find the initial momentum of the photon
n = 3.24 mol of Hydrogen gas is initially at T = 357 K temperature and pi = 2.79×105 Pa pressure. The gas is then reversibly and isothermally compressed until its pressure reaches pf = 7.62×105 Pa. How much work did the external force perform
A bullet with a mass m = 4.83 g and initial speed of 330 m/s passes through a wheel which is initially at rest, What is the angular speed of the wheel just after the bullet leaves it
A car moving at 10 m/s crashes into a barrier and stops in 0.050 s. There is a 20 kg child in the car. Assume that the child's velocity is changed by the similar amount as the car's in the similar time period.
Illustrate how much ice must melt in order to cool the hot water down to this temperature?
An astronaut travels to an alternate universe that contains infinite charged plane and no other charged objects. The astronaut observes that the electric field in this universe has a magnitude of 1.20 N/C everywhere and points directly away from the ..
A bullet is fired through a board 13.5 cm thick, with a line of motion perpendicular to the face of the board. what is its acceleration as it passes through the board
A girl rides the escalator that moves foward at a constant speed. As the girl raises, how do her gravitational energy and kinetic energy change.
A sunbather lying on a floating raft that experiences no friction with the water gets up and walks to the western end of the raft. how fast does the raft move in terms of the sunbather's speed
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