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

which of the following was rudolf Virchow's contribution to our understanding of cells

im having trouble solving this absolute value equation. can someone help me out? −2∣5w−7∣+9=−7

Write an equation for a line parallel to y=-3x+2 that passes through the point (-1,4)

Which choice best fills in the blank Elle ___ doi ami à la fête ce soir A.) rend B.) invite C.) descend D.) garantit

Multiply or find the special product. (Simplify your answer completely.) [(x − 8y) + z][(x − 8y) − z]

A recent survey found that 65 percent of americans look up political information on the internet. these are examples of what kind of citizenship?

At what ph will the enzyme show 78% of maximal activity?

Please isolate x in the following equation. x=y+xy

Two families meet at the park at 10:00am. Each family uses a different way of transportation to get there. The Gonzalez family leaves at 9:00am and drives 90 km

University A boasts a 15:1 student to teacher ratio whereas University B advertises having 150 professors to teach just 3,000 students. If University B wanted t