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Q1. A wheel is spinning clockwise at a 12.0 revolutions per second at t = 0. Because of friction in the bearings supporting the axle, the wheel slows down, losing 0.600 revolutions per second in angular velocity each second, until it comes to rest. How many complete revolutions does the wheel turn before coming to rest?
Q2. A rifle with a barrel length of 58 fires an 11 bullet with a horizontal speed of 370. The bullet strikes a block of wood and penetrates to a depth of 15.
A 120 granite cube slides down a 45 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 210 steel cube at rest.
Distance between focal plane and lens
A diver 40 m deep in 10 degree Celcius fresh water exhales a 0.50-cm-diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20 degrees Celcius? Assume that the air bubble is always in..
What is the speed of crate hit ground
The incident electron loses energy The incident electron emits an x-ray.
What mass of stone is necessary if the temperature is not to drop below 18.5°C overnight. Sunlight shining in during the daytime is absorbed by the floor, interior walls, and objects in the room, raising their temperature to 37.5°C.
How far would trampoline stretch if the performer stands still on it while taking a bow.
An average temperature of the rest of the universe
Find out the magnitude of the charge on the moving particle. The baby soon learns to bounce with utmost amplitude and minimum effort by bending her knees at what frequency.
What is final speed of the block
Driving in your car with a constant speed of 13 m/s, you encounter a bump in the road that has a circular cross section, as indicated in the figure. If the radius of curvature of the bump is r = 29 m, find the apparent weight of a 59-kg person in you..
The centripetal and tangential accelerations are equal
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