Homework Statement
What is the tension of the string?
Mass of piano string- 3.5g
Lenght of piano string- 75cm
Fundamental frecuency- 469Hz
Homework Equations
λ=2L/n ?
Dont know where to start.
Homework Statement
Mass- 0.8 kg
Initial Velocity- 3 m/s
Spring constant- 500 N/m
No friccion
Final velocity- 0
Homework Equations
What is the maximum compression of the spring?
I don't know where or how to start!
Please help.