Compute the work done in lifting the object
A man lifted an object of 25.0 kg from the bottom of a 0.750 meter deep hole to a point 1.50 m over the ground.
i) Compute the work done in lifting the object.
ii) Compute the change in the rock’s gravitational potential energy.
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A boy is running at a speed of (3.6 m/s) and grabs a rope suspending vertically from a tall tree in order to swing out over a pond. Explain how high can he swing upward?
When the utmost height the dart can reach with the spring fully compressed is given by h, then what fraction of this height will the dart reach if the spring is compressed by 1/4 of its maximum compression?
The half life of cesium-137 is 30 years assume we have a 10 g sample. Determine the function which models mass remaining after t years.
At local playground a child on a swing has a speed of 3.11 m/s if the swing is at its lowest point. Determine how high vertically above the lowest point is the swing if the speed has been decreased to 1/7 of the speed at the lowest point?
A man lifted an object of 25.0 kg from the bottom of a 0.750 meter deep hole to a point 1.50 m over the ground. i) Compute the work done in lifting the object.
A crate of 20.0 kg slid down a 3.00 m long ramp inclined at 30.0° to the horizontal. i) Compute the crates change in the gravitational potential energy.
How many of each kind of truck must company buy? Give row reduced matrix and write the sentence interpreting meaning. Write purchasing options for company.
Consider a motor which exerts a constant torque of 25.0 N m to a horizontal platform whose moment of inertia is 50.0 kg m^2. Suppose that the platform is initially at rest and the torque is exerted for 12.0 rotations. Avoid friction. Determine how
When the lighter fragment consists of a speed of 0.844c after the breakup, determine the speed of the heavier fragment? (Suppose that the speeds are measured in a frame at rest with respect to the original particle.)
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