Physics, 01.06.2020 20:58 kaitlynngrace15
A ball is thrown to the sky directly from the edge of the skyscraper which has 61.9 meters lenght. Asssume that the ball does not hit the skyscraper when it returns from sky journey to the ground and hit the ground 4.0 seconds after it was thrown. Find the velocity of the ball when it was thrown (initial velocity)?
Answers: 3
Physics, 22.06.2019 03:30
Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.
Answers: 3
Physics, 22.06.2019 07:00
Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block
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Physics, 22.06.2019 08:00
Who was the first scientist to measure speed as distance over time?
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Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 1
A ball is thrown to the sky directly from the edge of the skyscraper which has 61.9 meters lenght. A...
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