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A bicycle being repaired is turned upside down, and one wheel isrotated at a rate of 60 rpm. If the wheel slows uniformly toa stop in 15 seconds, how many revolutions does it make during this time?
A worker pushed a 22 kg block 8.1 m along a level floor at constant speed with a force directed 39° below the horizontal. find the increase in thermal energy of the block-floor system
A weightlifter lifts 200kg from the floor to a height of 2m in 2s. How much work did the weightlifter perform
A wheel of radius 0.360 m starts from rest and accelerates uniformly to an angular speed of 18.0 rad/s in 6.00 s. Calculate the final linear speed of a point on the rim of the wheel. In other words, relate the velocity v to the angular velocity ? Cal..
Acircular hole of radius 8.470×10−1 cm mustbe cut into the front panel of a displayunit. The tolerance is1.0×10−3 cm, which means the actual hole cannot differ by more than this quantity fromthe desired radius.
A ball is tied to the end of a cable of negligible mass. What is the magnitude of the acceleration of the ball
q1. your toaster has a power cord with a resistance of 0.016 connected in series with a 10.6 nichrome heating element.
Drops of rain fall perpendicular to the roof of a parked car during a rainstorm. find the average force exerted by the rain on the roof
what is the rotational inertia of a solid iron disk of mass 48 kg with a thickness of 3.57 cm and radius of 19.5 cm
Students in a fraternity house want to be able to spray water 25 m across their neighbor's yard onto a patio. What size nozzle do they need
the 500m short track speed skating olympic world record is 39937sec held by american jr celski. calculate jrs average
At the local playground a child on a swing has a speed of 2.02 m/s when the swing is at its lowest point. (a) To what maximum vertical height does the child rise, assuming he sits still and "coasts"? Ignore air resistance. (b) How do your results cha..
A generator produces 29 kilovolts (24,000 volts divided by 1000 = 24 kilovolts) of AC and a transformer steps this voltage up to 368 kilovolts for transmission over power lines
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