The force between to objects of charge + Q and - 2 Q, respectively, is measured as - 2F. If the charge on the first object is doubled and the distance between the objects is doubled, what will the force between the objects become?

Which sequence of events in emotional responses is characteristic of the james-lange theory of emotion?

Why do you rotate when you hold a spinning wheel?

How does mechanical energy become electrical energy?

A lamp uses a 230 V mains supply and transfers 96 J of energy every second. Work out the current through the lamp. Give your answer to 1 decimal place.

may explode with such intensity that they become part of other objects

Jessica took a Mylar balloon outside on a very hot day. As she waited for the bus the balloon began to get bigger. What is the best explanation of this?

Describe how electricity flows through a simple closed circuit.

Solar energy is produced by A. fusion of light nuclei to make heavier ones B. the slow release of heat left over from the Sun's formation C. fission of heavy nuclei into lighter ones D. solar magnetism

A 72-kg fisherman in a 114-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 5.0 m/s.

Roberto creates an animation titled "Flying through an Atom." The animation makes it seem as if the viewer passes all the way through an atom, starting from one side, then through the atom's center, and then leaving through the other side.