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A factory worker pushes a crate of mass 32.0kg a distance of 4.85 along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and floor is 0.26.m
How much work is done on the crate by this force?
How much work is done on the crate by friction?
The graph of two cars that collide shows that they intersect at a point 5.5m on a distance/time graph. The first car has a velocity of 0.39m/s. what does the steepness of the slope indicate
A highway curve of radius 600m is designed for traffic moving at a speed of 73.0km/hr. What is the correct banking angle of the road
The triceps muscle in the back of the upper arm extends the forearm. What is the moment of inertia of the boxer's forearm
a 15-kg block rests on a level frictionless surface and is attatched by a light string to a 5.0-kg hanging mass, what is the tension in the connecting string
A luge and its rider, with a total mass of 90 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 38 m/s. If a force slows them to a stop at a constant rate of 1.4 m/s2.
When a grating is used with light that has a wavelength of 541 nm, a third-order maximum is formed at an angle of 30.0°. How many lines per centimeter does this grating have
An airplane is flying through a thundercloud at a height of 2400 m. (Flying at this height is very dangerous because of updrafts, what is the electric field at the aircraft
The moon's diameter is 3.48 × 106 m, and its mean distance from the earth is 3.85 × 108 m. Find the diameter of the moon's image on the slide film
a sound wave traveling in 26 degrees C air has a pressure amplitude of 0.500 Pa. (assume that the density of air is 1.29 kg/m^3). What is the intensity of the wave
Two resistors, 48.8 and 60.5?, are connected in parallel. The current through the 60.5-? resistor is 3.72A, What is the total power supplied to the two resistors
A motorcycle is traveling up one side of a hill and down the other side. Determine the maximum speed that the cycle can have
calculate the magnitude of the force if Q1 is 4 x 10^-9 coulombs and Q2 is 8 x 10^-12 coulombs and the distance between them is 3 x 10^-8 meters.
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