The earth's magnetic field, like any magnetic field, stores energy. the maximum strength of the earth's field is about 7.0 x 10-5 t. find the maximum magnetic energy stored in the space above a city if the space occupies an area of 4.8 x 108 m2 and has a height of 1500 m.

Why do electron microscopes have higher resolving power than light microscopes?

What is the most useful equation for electric power?

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.