Physics, 28.02.2020 19:49, arissahyp73x7x
In old cartoons, sometimes they would drop a piano on a toon’s head. If a piano weighs 215.5 kg and us falling at a rate of 9.8 m/s^2, what force works it hit the ground with
Answers: 3
Physics, 22.06.2019 11:30, alexandroperez13
With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90
Answers: 1
Physics, 22.06.2019 12:30, promcafee8788
Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j
Answers: 1
In old cartoons, sometimes they would drop a piano on a toon’s head. If a piano weighs 215.5 kg and...
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