A steel ball whose mass is 100 g is rolling at a rate of 2.8 m/sec what is its momentum​

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?