You serve a volleyball with a mass of 2.1 kg. the ball leaves your hand with a speed of 30 m/s.

When a muscle is stretching by a contraction of the opposing muscle it is called

What is latent heat? Group of answer choices Energy released when water evaporates. Energy hidden in water vapor in the air. Energy stored in rocks and ice. Energy absorbed or hidden when water evaporates. Energy given off by the Sun.

A cyclist accelerates from 0 m/s to 8 m/s in 3 seconds. What is his acceleration?

Explain the force responsible for the formation of our solar system.

When you hit a nail into a board using a hammer the head of the nail gets warm. In terms of kinetic and thermal energy describe why you think this happens?

What is the term for the basic unit of electric current? The basic unit of electric current is the.

When a sailboat overtakes a powerboat, which vessel is the stand-on vessel?

Both matter and energy can eneter and exit which of the following systems? A. open only B. both open and closed C. isolated only D. both closed and isolated

1. Find the charge if the number of electrons is 4 x 10-18

Which of the following describes resistance force?