A A student shakes the end of
a rope
with
frequency of 1.5 Hz, causing waves with a
wavelength of 0.8 m to travel along the rope.
What is the velocity of the waves?

1.2m/s

hope this helps!

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg