By how much should the mass on the end of a spring be changed to halve the frequ
ID: 1471044 • Letter: B
Question
By how much should the mass on the end of a spring be changed to halve the frequency of its oscillation?
-No change
-Doubled
-Quadrupled
-Halved
-Quatered
Two linear waves, W1 and W2, have the same amplitude and speed, and otherwise are identical, except W1 has half the wavelength of W2. Which transmits more energy and by what factor? Assume they travel in the same medium.
-W1 will transmit four times as much energy as W2
-W2 will transmit two times as much energy as W1
-W2 will transmit four times as much energy as W1
Explanation / Answer
1) as f=(1/2pi)sqrt(k/m)
so mass should be Quadrupled to make frequency half.
2) W1 will transmit four times as much energy as W2
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