Despite a very strong wind, a tennis player manages to hit a tennis ball with her racquet so that the ball passes over the net and lands in her opponents court. consider the following forces: 1 - a downward force of gravity. 2 - a force by the "hit". 3 - a force exerted by the air. which of the above forces is (are) acting on the tennis ball after it has left contact with the racquet and before it touches the ground?
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Physics, 22.06.2019 02:30
Agas contained within a piston-cylinder assembly undergoes three processes in series: process 1ο 2: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 2ο 3: constant pressure expansion to 1 liter. process 3ο 1: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat
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Physics, 22.06.2019 15:00
What happens when a rubber rod is rubbed with a piece of fur?
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Physics, 22.06.2019 16:30
Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?
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Despite a very strong wind, a tennis player manages to hit a tennis ball with her racquet so that th...
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