Physics, 19.11.2020 18:00 Queenhagar
A physics instructor conducts a projectile motion demonstration. The device used will drop one steel ball and horizontally launch another. If no air resistance is presented which steel ball, the one launced or the one dropped, striked the ground first?
(a) The launched ball
(b) The dropped ball
(c) both hit a the same time
(d) neither hit the ground
Answers: 3
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On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?
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A physics instructor conducts a projectile motion demonstration. The device used will drop one steel...
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