The Density of Aluminum Is $2700 \mathrm {~kg} / \mathrm { m } ^ { 3 }$

Multiple Choice

The density of aluminum is $2700 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ If transverse waves travel at 38 m/s in an aluminum wire of diameter 4.6 mm, what is the tension on the wire?

A) 39 N
B) 52 N
C) 78 N
D) 65 N