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A puck slides on a surface for 5.6 m before it stops. If it was moving at a velocity of 15 m/s and has a mass of 1.2 kg, what is the force of friction exerted on the puck? There is a non-conservative work done on the puck equal to the change in kinetic energy.
two blocks of mass m1 and m2 approach each other on a horizontal table with the same constant speed, Vo, as measured by a laboratory observer. Determine the ratio of the two masses m1/m2
If a 350 kg object is moving with constant velocity 22 m/s due east, then what is the magnitude of the net force acting on the object
A 1100 kg car carrying four 84 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. By how much does the car body rise on its suspension owing to this decrease i..
A 6 kg box is held at rest by two ropes that form a 30 degree angle with the vertical. and external for F acts vertically downward on the box.
Two violin strings are tuned to the same frequency, 294 Hz. The tension in one string is then decreased by 1.5 %. What will be the beat frequency heard when the two strings are played together.
Three blocks, each of mass 9 kg are on a frictionless table. A hand pushes on the left most box (A) such that the three boxes accelerate in the positive horizontal direction, What is the magnitude of the force on block A from the hand
How long did it take for officer to catch up to the car.
A 100 kg running back carries the ball forward with a speed of 9 m/s. He is hit head on in the air at the goal line by a 130 kg defensive back running in the opposite direction at 7 m/s
An astronomical telescope for hobbyists has an angular magnification of -130. The eyepiece has a focal length of 5.50 mm. how long is the telescope
Determine the maximum horizontal force that can be applied to the block before it slips.
A closed container with volume of 7.80 L holds 9.6 g of liquid helium at 3.00 K, What is the final pressure inside the container
Two sound sources driven in phase by the equal amplifier are d = 4 m apart on the y axis. At a point a very large distance from the y axis, constructive interference is first heard at an angle θ1 = 0.140 rad with the x axis.
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