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Tanzania [10]
2 years ago
12

What is the efficiency of a car's engine when heat input is 400,000 joules and

Physics
2 answers:
Aleksandr-060686 [28]2 years ago
5 0
Either 25% or 75%. does it to how much is wasted or the difference in the input and waste?
otez555 [7]2 years ago
3 0

Answer: A. 25%

Explanation: Ap3x

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A sound wave with a frequency of 300 hertz is traveling a medium at a speed of 320 meters/second. What is it’s wavelength
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Question 3 of 25 What is the period of a wave that has a frequency of 3 Hz?​
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F = 1/ T

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1/ 3

hope this helps

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