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A bicyclist (m=61.6 kg) has wheels with radius of 41.0 cm. They begin to pedal from rest, exerting a constant forward force of 63.4 N, and their wheels roll without slipping on the pavement. After 17.2 seconds of pedalling, what is the angular speed of their wheels. Express your answer in rad/s.
Suppose the 16.59W of radiation emitted in a microwave oven is absorbed by a very lightweight cup holding 136.46g of water. Approximately how long will it take to heat the water from 43.83oC to 76.36 oC?
one half mole of ideal gas is taken front state a to state c. a go down to b and b to c in a line a pressure is 4.0x105
A driver releases an air bubble of volume 2.0 cm3 from adepth of 15 m below the surface of a lake, where the temperature is7.0oC. What is the volume of the bubble when it reachesjust below the surface of the lake, where the temperature is20oC?
A spacecraft with circular (north and south sides) of diameter 32 meter passes Earth moving eastward (in relation to you)), Find the speed of the spacecraft in units of c, the speed of light in a vacuum
During the transition of the metal from the boiler to the cup, some heat may have been lost to the air. If no heat was lost, how would your values for the final temperature change?
In a common but dangerous prank, a chair is pulled away as a man is moving to sit on it, causing the victim to land hard on the floor. Find the magnitudes of the average force acting on victim
A person was dropped off a bridge. The person weighs 588N and lands with a speed of 22 m/s. How high are the bridge and how much kinetic energy does the person produce before hitting the ground?
A light-rail train going from one station to the next on a straight section of track accelerates from rest at 2.37 m/s2 for 15.9 s. What is the distance between the stations
question pittsburgh pennsylvania and miami florida lie approx. on the same meridian. pittsburgh has a latitude of 40.5
An electric motor rotating a workshop grinding wheel at a rate of 1.09 102 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 2.50 rad/s2. (a) How long does it take for the grinding wheel to stop? s (b..
A large storage tank, open to the atmosphere at the top and filled with water, Determine the speed at which the water leaves the hole
The human body can survive an acceleration trauma incident (sudden stop) if magnitude of the acceleration is less than 250;{rm m}/{rm s}^{2}.
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