Why must soft iron be used with an electromagnet?

You add heat to matter, the atoms that make up the matter will begin to move?

Etahnol has a density of 0.79 g/ml. what is the volume, in quarts, of 1.80 kg of alcohol?

Why are metals generally good conductors of electricity? 1. metals have more protons. 2. metals have strong bonding with other atoms. 3. metals have free electrons in their outer shell?

In the old west, a cowboy would put their ear on the railroad track to determine if a train was coming. Using this method, they could tell if the train was coming sooner than just listening for the train.

What evidence caused Rutherford to change Thomson plum pudding model into the nuclear model

a substance that undergoes a physical change like melting is still the same substance is it true or false

What is a polar molecule

A mixture of He He, N 2 N2, and Ar Ar has a pressure of 22.1 22.1 atm at 28.0 28.0 °C. If the partial pressure of He He is 2475 2475 torr and that of Ar Ar is 1049 1049 mm Hg, what is the partial pressure of N 2 N2?

Oceans make the temperaturs of nearby land more extreme ... True or false

The Greek letter D stands for A. Mass of B. Rate of C. Change in D. Heat stored in