When charging, which type of material usually gives off electrons: conductors or insulators? Why? I need answers asaaap.

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

Which of the following describes how a microwave heats food

Aball with a mass of 1.5 kilograms is tied to the end of a rope. the ball is pulled to a height of 0.5 meters above the ground and released. the ball has joules of potential energy at position b. at position a, all of the energy changes to kinetic energy. the velocity of the ball at position a is meters/second. assume there’s no air resistance.