Answer:
a.264.6m/s
b.4995g
Explanation:
Data given,
Tension T=500N,
length of wire=0.7m,
mass,m=5g=0.005kg
a.To determine the speed of the transverse wave, we use the equation below
if we insert values as given in the question , we arrive at
b. To reduce he wave speed by a factor of 2, the new wave speed will become 132.3m/s.
From the equation, if mass,m becomes subject of formula, we have
Hence to reduce the speed by a factor of 2, (5000-5)g=4995g mass of copper wire would have to be wrapped around the wire.