Which would best reduce the amount of energy needed to pull a wagon up a ramp?
1.increasing th...
Physics, 19.08.2019 06:00 yarrito20011307
Which would best reduce the amount of energy needed to pull a wagon up a ramp?
1.increasing the slope of the ramp
2.reducing the friction between the wagon wheels
3.reducing the length of the wagon handle
4.increasing the friction between the wagon wheels
Answers: 1
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Iflow from a warmer object to a cooler object until both objects are the same temperature what am i?
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Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.
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Physics, 22.06.2019 07:30
Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?
Answers: 1
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