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A sustained force of 44 N moves a model airplane 10 m along its runway to provide the required speed for takeoff.
Find the kinetic energy at takeoff.
A particle of mass 4.47 × 10?27 kg, moving at 9.46 × 105 m/s, strikes an identical particle which is initially at rest. What are the final speeds of the particles
A rubber ball of mass 16.0 g is dropped from a height of 1.80 m onto a floor. What impulse was applied to the ball during the collision
A laser beam is incident at an angle of 29.2° to the vertical onto a solution of corn syrup in water. what is the index of refraction of the syrup solution
a teenager of mass m1 100 kg pushes backward against the ground with his foot as he rides his skateboard. this exerts
the electric field midway between two equal but opposite point charges is 695 nc and the distance between the charges
An object is placed 55.5 cm from a screen. Where should a converging lens of focal length 8.0 cm be placed to form an image on the screen, Find the magnification of the lens
An object is made of glass and has the shape of a cube 0.11 m on a side, according to an observer at rest relative to it. What is the moving observer's speed (in units of c) relative to the cube
A 10-A current flows for two minutes. How much charge has passed through this circuit
In exercising, a weight lifter loses 0.124 kg of water through evaporation, find the change in the internal energy of the weight lifter
a 35 kg uniform ladder is leaned against a building. the 5 m tall ladder makes an angle of 60 degrees with the ground.
A gas cylinder contains argon atoms (m = 40.0 u). The temperature is increased from 273 K (0°C) to 365 K (92°C). What is the change in the average kinetic energy per atom
A superball with a mass m = 61:6 g is dropped from a height h = 1.76m. What is the momentum change of the ball during its collision with the floor
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