Which substance is important in making plastics?

A 3.5 kg gold bar at 94°C is dropped into 0.20 kg of water at 22°C What is the final temperature? Assume the specific heat of gold is 129 J/kg C Answer in units of °C

A formula that shows the simplest whole-number ratio of the atoms in a compound is the

What are three skills that move objects?

What is true about low resistance wires?

What fact does Einstein's equation E = mc2 describe?

A student throws a coin vertically downward from the top of a building. The coin leaves the thrower'S hand with a speed of 15.0m/s. How far does it fall in 2.00 s?

A force between two objects?

Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also feels warm to touch.

Which part of the motor is responsible for reversing the flow of current?

In a generator, as the magnet spins, opposite poles of the magnet push the electrons in opposite directions. This back-and-forth movement of electrons is called what? A) revolutions per minute B) direct current C) alternating current.