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A jelly donut is dropped from a height of 1m above the big belly of a horizontal couch potato. It bounces straight back up, however, it loses 10% of its kinetic energy in the collision. How high did it rise on its first bounce?
Refrigerant r-134a flows through a refrigeration system at a rate of 0.12 kg/s. At the entrance to the adiabatic compressor, find the power required by the compressor
An 18 kg sled starts up a 31 degree incline with a speed of 3.2 m/s. The coefficient of friction is 0.25. How far up the incline does the sled travel
An engineer is designing a pacemaker for cardiac patients. For the 20 year old woman, how many times must device have to beat for her to have a normal life expectancy.
At this point, he throws a forward pass 45.0 yards straight downfield perpendicular to the line of scrimmage. Illustrate what is the magnitude of the football's resultant displacement?
find the mass of Earth from the period T and the radius r of the Moon's orbit about the Earth. T=27.3 days and r=3.82E5 km. suppose the Moon orbits the center of Earth rather than the center of mass of the Earth-Moon system.
If the create has a mass of 110 and is 1.60 tall and 0.80 in depth and width, what is the minimum force needed to make the crate start tipping? (Assume the center of mass of the crate is at its center and static friction great enough to prevent sl..
Two parallel metal plates separated by a distance of 2mm and each having an area of .5m squared carry equal, What potential difference exist between the plates
A 0.145- kg baseball traveling 34.50 m/s is stopped in 0.183 s by a catcher's mitt. What is the average force on the catcher's mitt
A proton is traveling horizontally at 5.4 × 106 m/s south. A magnetic flux density has a magnitude of 0.25 T and is directed north. What is the force on the proton
How far from the center of the earth must a person be to experience acceleration as the reason of gravity that is one half the acceleration at the surface.
A sled weighing 189N rests on a 15° incline, held in place by static friction. The coefficient of static friction is 0.50.
A star has a mass of 1.27 x 1030 kg and is moving in a circular orbit about the center of its galaxy. The radius of the orbit is 1.0 x 104light-years, Determine the tangential speed of the star
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