Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

By how much should the mass on the end of a spring be changed to halve the frequ

ID: 1471039 • 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 two times as much energy as W2

-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 frequency=(1/2pi)*sqrt(k/m)

so mass should be Quadrupled to half the frequency

2) W1 will transmit two times as much energy as W2