Physics, 10.12.2019 00:31 alexchou773pejk7x
Which one of the following frequencies of a wave in the air can be heard as an audible sound by the human ear?
a. 100,000 hz
b. 10 hz
c. 1,000 hz
d. 0.10 hz
Answers: 1
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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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Which one of the following frequencies of a wave in the air can be heard as an audible sound by the...
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