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A man is trying to get his car out of mud on the shoulder of a road. He ties one end of a rope tightly around the front bumper and the other end tightly around a utility pole a distance d away. He then pushes sideways on the rope at its midpoint with a force F, displacing the center of the rope x from its previous position, and the car barely moves. What is the magnitude of the force on the car from the rope? (The rope stretches somewhat.) State your answer in terms of the given variables.
Rumor has it that a photographic camera on a spy satellite can read the license plate of an automobile on the ground. what must be the diameter of the aperture of the camera
The karat is a dimensionless unit that is used to indicate the proportion of gold in a gold-containing alloy. What is the volume of gold in a 16.0-karat gold necklace whose weight is 1.15 N
A boy drops a stone vertically down from the margin of a 24-m cliff. After how many seconds will the two stones pass each other
a plane is flying at 25 degree north of west at 190kmh and encounters a wind from 15 degree north of east at 45kmh.
find out the z-component of the block's momentum after the kick.
What is angular velocity of the cockroach-disk system
A sphere of mass 2.8 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes an angle of 40° with vertical when at rest.
A block with mass 0.5 kilograms is covering a hole in a horizontal table. From below the table a bullet with mass 5 grams is fired straight up. Calculate the speed with which the bullet hit the block
Samantha pushes a 50.0 N crate up a ramp 25.0 m in length and inclined at 10.0 degrees with the horizontal. What potential energy does the crate experience
A 92-keV x-ray is Compton-scattered through an angle of 10o. What is the energy of the x-ray after scattering
The warm source of a Carnot cycle consists of a blast furnace operating at a temperature of 150C, calculate the net heat absorbed from the warm source
How long after the first strike does Wilma hears the sound. What is the time interval between successive sound pulses she hears.
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