2. A 38kg child is at the top of a slide that is 2.1m tall. (a) if there is no friction , how fast will they be moving when they reach the bottom of the slide? b) If they lose 250.0J of energy to sound heat and friction , how fast will they be moving when they reach the bottom?

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

What is the rate of change in a objects position?

What is special about a dc circuit ?