A pendulum reaches a maximum height of h above the equilibrium position as it oscillates. Assuming friction and air resistance are negligible, what is true about the total energy of the Earth-pendulum system as the pendulum oscillates?

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

In what direction does an applied force move an object