Physics, 19.09.2019 23:00 bigboifylod13
Atrain travels due south at 30 m/s (relative to the ground) in a rain that is blown toward the south by the wind. the path of each raindrop makes an angle of 70° with the vertical, as measured by an observer stationary on the ground. an observer on the train, however, sees the drops fall perfectly vertically. determine the speed of the raindrops relative to the ground
Answers: 2
Physics, 21.06.2019 20:00
Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.
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Most short-period comets do not have randomly oriented orbits because
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Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.
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Atrain travels due south at 30 m/s (relative to the ground) in a rain that is blown toward the south...
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