If the mass of an object halves, how does that affect its kinetic energy

What is the angular momentum of the bar about the axle?

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?