Which factor does not affect the strength of an electromagnet? O A. The number of coils of wire
O B. The material of the core
C. The placement of the ammeter in the circuit
O D. The number of batteries added to the circuit

The softest and hardest minerals are: softest hardest

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.

Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. in a typical strike, the chameleon's tongue accelerates at a remarkable 220 m/s2 for 20 ms, then travels at constant speed for another 30 ms.