The new volume = 3 x 52.6 that’s because as the pressure decreases by 1/3 the volume increases x3
Complete Question
The speed of a transverse wave on a string of length L and mass m under T is given by the formula

If the maximum tension in the simulation is 10.0 N, what is the linear mass density (m/L) of the string
Answer:

Explanation:
From the question we are told that
Speed of a transverse wave given by

Maximum Tension is 
Generally making
subject from the equation mathematically we have




Therefore the Linear mass in terms of Velocity is given by

Here we know that



now from kinematics we have

now from above all values we have



so final angular speed is -12.6 rad/s
Dang dude you are a soldier! Good job