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A man pushes a wooden crate on wooden floor. The direction of the force is 30o from the horizontal.
(a) How much force does he use in order to maintain a constant speed?
(b) How much work is done if he pushes the crate over a distance of 25.0 m? Kinetic friction coefficient for wood/wood is 0.50.
How much work is required to pull him 75 m up a 30° slope (assumed frictionless) at a constant speed of 2.1 m/s? Your response differs from the correct answer by more than 10%. Double check your calculations. Illustrate what power must a motor have t..
A newly discovered planet has a mean radius of 7380 km. A vehicle on the planet\'s surface is moving in the same direction as the planet\'s rotation, what is the period of the planet\'s rotation
In an internal combustion engine, air at atmospheric pressure and a temperature of about 20 ?C is compressed in the cylinder by a piston to 18.0 of its original volume, Estimate the temperature of the compressed air
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If the rms electric field of this light is 18.0N/C at a distance of 1.50m from the bulb, what is the average total power radiated by the bulb
The mass of Pluto is 0.0025 times that of earth, and its radius is 0.180 times that of earth. Calculate the acceleration of gravity at the surface of Pluto
Explain why should the Bryson Corporation act ethically in this situation? Illustrate what are the potentially negative representations of acting unethically?
An archer shoots an arrow with a velocity of 30 m/s at an angle of 20 degrees with respect to the horizontal. What is the initial speed of the apple
A catcher catches a fastball going 95mi/hr and recoils 12cm while stopping the ball in 0.005s. (mass of the ball is 280g). find the average force the ball exerts on the hand & glove
once upon a time, a stunt man would jump across the grand canyon a motorcycle. What minimum initial speed would be required to make across the canyon
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