A child is playing with a string that is fixed at one end. By moving their hand up and down, they can generate a wave pulse. How can they make the pulse move slower?
a. They can use a heavier string of the same length.
b. They can use a lighter string of the same length.
c. They can tighten the string tension.
d. They can loosen the string tension.
a. They can use a heavier string of the same length.
b. They can use a lighter string of the same length.
c. They can tighten the string tension.
d. They can loosen the string tension.