Physics, 12.09.2019 00:30 peytonhause20
identify the scenarios below as to whether they would increase, decrease, or not change the frequency in which a string vibrates and thus change its pitch. assume that no other changes are happening.
1. tightening a string for greater tension
2. replacing a thin string with a thick string
3. increasing the effective length of the string
Answers: 2
Physics, 22.06.2019 21:30
Atoaster oven has a resistive heating element. the average rate at which it dissipates energy as thermal energy is 1.00 \(\rm kw\). in the united states, emf amplitude in household circuits is \(\mathcal e_{\max}\) = 170 \({\rm \; v}\) and the \(\rm ac\) oscillation rate is 60 \(\rm hz\). part a what is the root-mean-square current through the heating element?
Answers: 2
Physics, 22.06.2019 21:30
In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane
Answers: 1
Physics, 22.06.2019 23:00
In which of these cases are the two wave points considered to be in phase with each other?
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identify the scenarios below as to whether they would increase, decrease, or not change the frequenc...
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