The technician connects the lamp to a 6 V motorcycle battery instead of the 12 V car battery. He expects the current to be 400 mA (exactly ½ of the current 800 in the 12 V circuit). He measures the current and finds that it is not 400 mA. Explain why the current is not 400 mA.

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?

Is a copper wire a conductor or insulator?