and strikes the ground
Physics, 21.10.2020 16:01, angelteddy033
If you drop a rock from a height of 13 m, it
accelerates at 9.8 m/s2
and strikes the ground
1.62882 s later.
If you drop the same rock from half that
height, what will be its acceleration?
1. the same.
2. about half.
3. Unable to determine.
4. more.
5. 0.
Answers: 1
Physics, 22.06.2019 07:40, sanafarghal
Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear
Answers: 2
Physics, 22.06.2019 10:30, gyexisromero10
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
Answers: 2
If you drop a rock from a height of 13 m, it
accelerates at 9.8 m/s2
and strikes the ground
and strikes the ground
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