Angular accelaration of the merry-go-round
A child pushes a merry-go-round from rest to a final angular speed of 0.50 rev/s with constant angular accelaration.In doing so,the child pushes the merry-go-round 2.0 revolutions.What is the angular accelaration of the merry-go-round?
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A rocket-powered hockey puck moves on a horizontal frictionless table. The figure at the top of the next column shows graphs of and the x- and y-components of the puck's velocity. The puck starts at the origin.
IN a rifle barrel a 15.0 g bullet is accelerated from rest to a speed of 780 m/s. Find the work that is done on teh bullet. Assuming that the rifle barrel is 72.0 cm long find the magnitude of the average total force that acted on it as F=W/(?rco
How many calories are required to heat 600 g of water from 278 K to 333 K?
A jetliner is moving at a speed of 365 m/s. The vertical component of the plane's velocity is 33.4 m/s. Determine the magnitude of the horizontal component of the plane's velocity.
Why was the annexation of Texas so controversial? What conditions gave rise to the early women's rights movement?
A map of a burned area obtined from remote sensing contains 120 pixels. The remote sensing image shows that the fire is isolated to 73 of the 120 pixels.
To test the deflection of the uniform 200-lb beam the 121-lb boy exerts a pull of 36 lb on the rope rigged as shown. Compute the force supported by the pin at the hinge O.
A 0.2 kg aluminum plate, initially at 20 C, slides down at a 15 m long surface, incline at a 30 degree angle to the horizontal. The force of kinetic friction exactly balances the component of gravity down the plane so that the plane, once started,
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