A box slides down a frictionless ramp that is 12 meters high. If it starts from rest, what is its speed at the bottom?

21.7 m/s
18.8 m/s
15.3 m/s
12.5 m/s

When you turn on a battery-operated device, an electrical circuit is

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.