Physics, 05.08.2019 16:10 hannahkharel2
An ambulance with a siren emitting a whine at 1790 hz overtakes and passes a cyclist pedaling a bike at 2.36 m/s. after being passed, the cyclist hears a frequency of 1780 hz. how fast is the ambulance moving? (take the speed of sound in air to be 343 m/s.)
Answers: 2
Physics, 22.06.2019 09:30
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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An ambulance with a siren emitting a whine at 1790 hz overtakes and passes a cyclist pedaling a bike...
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