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An object of mass = 2 kg is pulled by a constant force F = 5 N oriented at an angle of 30° with respect to the horizontal, for a horizontal distance of 2 m. What is the work done by force F? Do not consider friction.
A volleyball is spiked so that its incoming velocity of +4.2 m/s is changed to an outgoing velocity of -24 m/s. What impulse does the player apply to the ball
A 3 kg block slides along a frictionless surface at 1.0 m/s. A second block, sliding at a faster 5.0 m/s, What is the mass of the second block
The total mass of the astronaut with her space suit and all her gear is 125 kg. A small leak develops in her propulsion system and 5.99 g of gas are ejected each second into space with a speed of 781 m/s.
A 5.10 kg object on a horizontal frictionless surface is attatched to a spring with spring constant 880 N/m. The object is displaced from equilibrium 50.0 cm horizontally and given an initial velocity of 8.9 m/s back toward the equilibrium point.
The distance between the electron and proton in a hydrogen atom is 5.3 x10-11 m. Find the speed of the electron as it orbits the proton
question1an object of mass 1.2 kg is released from rest at the top of a 5 metre plank inclined at 40 degrees to
A curling stone with a mass of 7 kg moves across the ice at a speed of 1.35 m/s in the positive x direction. What is the speed and direction of stone 2 after the collision
A shell is fired from a gun with a muzzle velocity of 35 m/s, at an angle of 60° with the horizontal. How far from the gun does the other fragment land
During a 58-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 7.1-mA, What is the change in the primary current
compare and contrast the processes of fusion and fission. describe the challenges in harnessing fusion technology for
The label on a candy bar says 440 Calories. Assuming a typical efficiency for energy use by the body, how high could she go
A solid disk (r=0.20 m, M=0.50 kg) is suspended fro the end of an L=0.30m long rod (m=0.30 kg, cross-sectional area of 2.0 cm^2). WHAT IS THE PENDULUM'S PERIOD FOR SMALL ANGLE OSCILLATIONS
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