Physics

Physics, 27.02.2020 03:59, kylieweeks052704

Ultraviolet light causes production of vitamin d3 in the cells of the .

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Physics, 22.06.2019 00:30, powberier6979

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

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Physics, 22.06.2019 10:00, help1219

During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs

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Physics, 22.06.2019 15:40, byronanderson

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

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Physics, 22.06.2019 17:50, supasavb99

Convection occurs when thermal energy is transferred by the movement of

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