elyjiahhall elyjiahhall

01-04-2014
Chemistry

contestada

Compare and contrast an electromagnet and a permanent magnet.

Respuesta :

03-04-2014

Electromagnets need a constant electrical current to run, a permanent magnet does not.

Answer Link

Otras preguntas

5 2/3 divided by 4 this is kahnacdemy

The perimeter of a triangle is 137 cm. If three sides of the triangle are x + 7cm, 2x - 5 and 3x - 3 cm, what is the length of each side ?

3) Calculate the size of each exterior angle in: (a) a regular 9-sided polygon (b) a regular 40-sided polygon

What child labor was like during the progressive era? What laws exist today to protect child workers? Evidence from other countries that shows how child labor h

What colors does a dog see in?

Two schools had a track and field competition. One school took 3,784 students. The other schooltook 4,527 students. 1,641 students won a medal. How many student

Please help me with math problem

-PLEASE HELP ME- A veterinarian is changing the diets of two animals, Simba and Cuddles. Simba currently consumes 1,220 Calories per day. That number will incre

What are effectiveness and ineffectiveness of road user??

A textbook store sold a combined total of 477 history and math textbooks in a week. The number of math textbooks sold was 47 less than the number of histo