Author Question: When a spring is stretched, its mass decreases. Indicate whether the statement is true or ... (Read 18 times)

K@ · **on:** Jul 29, 2018

When a spring is stretched, its mass decreases.

Indicate whether the statement is true or false

Question 2

A sewing machine needle moves up and down in simple harmonic motion with an amplitude of 1.27 cm and a frequency of 2.55 Hz. How long does it take it to travel 11.43 cm?

A) 3.53 s
B) 0.882 s
C) 1.13 s
D) 1.76 s
E) 2.65 s