Question

Sally Sue, an enthusiastic physics student enjoyed the opportunity to collect data from standing waves in a spring. She and her partner help the ends of their spring 4.00 meters apart. There are 5 nodes in the standing wave produced. Sally moved her hand from the rest position back and forth along the floor 20 times in 4.00 s.

a. the wavelength of the wave Sally Sue sent

b. the frequency of the wave produced

c. the speed of the wave

Answer 1

2.5 lambda for the total length

lamda= 4/2.5 meters
f= 20/4 hz
speed= f*lambda

Answer 2

A-1.6
B-5
C-3.125