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A 3.0 m long rigid beam with a mass of 125 kg is supported at each end. An 65 kg student stands 2.0 m from support 1. How much upward force does each support exert on the beam?
A house sits in a valley and is 30 m lower than the water tower that serves it. What is the speed of water when it sprays out of a shower in the house?
How much work must this force do to stop the wheel. An electron moving along the x axis has a position given by x = 11te-1t m, where t is in seconds. How far is an electron from the origin when it momentarily stops.
What is the change in kinetic energy of the puck
A gardener feels it is taking him excessively long to water a garden with a 0.952cm diameter hose. By what factor will his time be shortened, if he uses a 1.58 cm diameter hose.
A block of mass m = 2.00 kg is dropped from height h = 90 cm onto the spring of spring constant k = 1960 N/m. Find out the maximum distance the spring is compressed.
What is the magnitude of the normal force exerted by the car.
The bullet emerges from the block with a speed of 200 m/s, and the block rises to a maximum height of 12 cm. Evaluate the initial speed of the bullet. V = 530 m/s
What is the maximum distance the center of the coin can be placed from the axis if the turntable rotates at 47.9 rev/min
While john is travelling along an interstate highway, he notices a 166 mile marker as he passes through town. Later john passes another mile marker, 105.
A 2.8-kg piece of aluminum at 28.5 degrees celsius is placed in 1.0 kg of water in a Styrofoam container at room temperature (20 degrees celsius)
A stone is shown at rest on ground. at. The vector shows the weight of the stone. Complete vector diagram showng another tha results in zero net force on the stone. b. What is the conventional name of the vector you have drawn.
Two .40 kg soccer balls collide elastically in a head on collision. The first l starts at rest and the second ball has a speed of 3.50 m/s after the collision, second ball is at rest. What is the final speed of the first ball.
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