Y do magnets go apparent when pushed together

Since sinusoidal waves are cyclical, a particular phase difference between two waves is identical to that phase difference plus a cycle.

How much of the earth's animal life exists in the oceans? 40% 60% 80% 99%

A material is said to be ductile if it a. can be pulled out, or drawn, into a long wire. b. can be hammered or rolled into flat sheets and other shapes. c. can transfer heat or electricity to another material. d.

Which characteristic is used to measure the amount of light radiated by a star?

How far away is Pluto?

You are given two objects of identical size, one made of aluminum and the other of lead. You hang each object separately from a spring balance. Because lead is denser than aluminum, the lead object weighs more.

Why are the oldest parts of the ocean floor no older than about 200 million years

A firefighter with a weight of 707 N slides down a vertical pole with an acceleration of 2.79 m/s2, directed downward. (a) What is the magnitude of the vertical force on the firefighter from the pole?

As latitudes increase temperatures gennerally decrease. explain?

Matter that does not conduct energy easily