Physics, 05.05.2020 23:21 finleymarch14
Ms. Fleming's class sets up an experiment involving pendulums. You can see in the picture that a pendulum is a "bob" attached to a string which hangs from a fixed point, allowing the bob to swing back and forth. They hook a 10 gram bob to a 12 inch string, and measure the time it takes for the bob to swing back and forth one time as 2 seconds. Then the class hooks a 10 gram bob to a 20 inch string and measure the time it takes to swing back and forth as 4 seconds. Lastly, the class hooks a 10 gram bob to a 30 inch string and measures its swing time. What is the best prediction of the last bob's swing time? A) 1 second. B) 2 seconds. C) 4 seconds. D) 6 seconds.
Answers: 2
Physics, 22.06.2019 10:00
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
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Ms. Fleming's class sets up an experiment involving pendulums. You can see in the picture that a pen...
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