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Q. An ideal spring with a stiffness of 379N/m is attached to a wall, and its other end is attached to a block that has a mass of 16-kg. The spring/block system is then stretched away from the spring's relaxed position until 59J of mechanical potential energy is stored in teh spring. Then the system is released to oscillate freely, with block sliding horizontally on the level, frictionless floor. Find out the speed of the block when the spring is compressed by 13.40 cm.
You push with a 20 N horizontal force on a 2 kg mass resting on a horizontal suface against a horizonatal friction forces of 12N. What is the accerlation.
After a day of testing race cars, you decide to take your own 1420 kg car onto the test track. While moving down the track at 10 m/s, you regularly accelerate to 32m/s in 10 s. What is the average net force that you have applied to car during the ..
Compare these two ratings by determining the ratio of energy.
Illustrate a basketball momentum vectors
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The resistor is connected in series with total set of lightbulbs. What is the value of the resistance? What is the power loss in the resistor.
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.
what will be the induced emf magnitude in the short coil. A 77.9 kg fireman slides down a 4.13 m pole by applying a frictional force of 343 N against the pole with his hands. If he slides from rest, how fast is he moving once he reaches the ground.
A rigid steel frame above the street intersection supports standard traffic lights, each of that is hinged to hang immediately below frame. A gust of wind sets light swinging in a vertical plane. Find out order of magnitude of its period. Situatio..
State your answer in terms of and Use three significant figures in the numerical coefficient.
A hot wheels track has a spring loaded launcher. A 100g car is pushed into the launcher, which compresses the spring by 2cm. The cars initial velocity after launching is 3m/s.
A 3.0 syringe has an inner diameter of 5.0, a needle inner diameter of 0.28, and the plunger pad diameter (where you place your finger) of 1.20.
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