QUESTION 1 A large spring requires a force of 130 N to compress it only 0.01 m.

Question

QUESTION 1

A large spring requires a force of 130 N to compress it only 0.01 m. What is the spring constant of the spring?

13 000 N/m

6 500 N/m

1.3 N/m

130 N/m

13 N/m

4.00000 points   

QUESTION 2

A note is being played on a string on a guitar. The string is then pushed to the side while still in contact with the same fret. What happens to the frequency of the note then played compared to the original note?

It is at higher frequency than the original note.

It is at lower frequency than the original note.

It can be either higher of lower frequency depending on whether the original note was above or below middle C.

It is the same note since the same fret is being used.

4.00000 points   

QUESTION 3

A water bug on the surface of a pond bobs up and down three times per second on ripples with wavelength 10.5 cm. A fish resting at the surface of the pond is 8.50 m from the water bug. How long does it take a ripple passing the water bug to reach the fish?

243 s

81.0 s

0.893 s

27.0 s

13 000 N/m

6 500 N/m

1.3 N/m

130 N/m

13 N/m

Explanation / Answer

Answer 1:
According to Hooke's law, the force required to compress or extend a spring is directly proportional to the distance it is stretched. It can be represented in an equation as F = kx, where F is the force applied, k is the spring constant and x is the extension of the object usually in meters.
F = 130 N, x= 0.01m
k = F/x = 130/0.01 = 13000 N/m

** As per chegg policy, only one question at one time. **

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