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Suppose the earth suddenly came to halt and ceased revolving around the sun. The gravitational force would then pull it directly to the sun. What would be the earth's speed as it crashed?
A 10g ball of clay is thrown horizontally at 30m/s toward a 1.5kg block sitting at rest on a frictionless hi surface. The clayts and sticks to the block. What impulse does the clay exert on the block
The spring is aligned with the plane and has a spring constant of 133 N/m. Explain how much does the spring stretch?
A 1.0mm -diameter, 40cm -long copper wire carries a 3.5A current, What is the potential difference between the ends of the wire
A 110 kg mail bag hangs by a vertical rope 4.0 m long. A postal worker then displaces the bag to a position 2.0 m sideways from its original position, always keeping the rope taut. As the bag is moved to this position, how much work is completed by t..
1) Find the net force acting on particle 3 due to the presence of the other two particles. Report you answer as a magnitude and a direction measured from the positive x axis.
Find out the gravitational potential energy
Compute the magnitude and direction of the total gravitational force exerted on one sphere by the other three.
A ball is thrown horizontally from the top of a 55 m building and lands 105 m from the base of the building, How long is the ball in the air in seconds
A rigid, well insulated container contains 10 kg of water. A motor connected to a paddle wheel is used to stir the water at a rate of 100 rad/s. How much toque does the motor need to supply (in N-m) in order for the water to heat up by 10?C in one..
What is magnitude of the net force on the student
A 1290kg car and 4860kg truck undergo a perfectly inelastic collision. Before the collision, the car was traveling southward at 1.80m/s, Find the velocity of the wreckage immediately after the collision
An object is formed by attaching a uniform, thin rod with a mass of mr = 6.92 kg and length L = 4.92 m to a uniform sphere with mass ms = 34.6 kg and radius R = 1.23 m. What is the moment of inertia of the object about an axis at the left end of th..
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