The following two formulas are equivalent: D = m / V and V = m / D.

true or false

What does the law of conservation of mass state?

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?