One hundred turns of (insulated) copper wire are wrapped around a wooden cylindrical core of cross-sectional area 3.02 × 10-3 m2. The two ends of the wire are connected to a resistor. The total resistance in the circuit is 14.3 Ω. If an externally applied uniform longitudinal magnetic field in the core changes from 1.88 T in one direction to 1.88 T in the opposite direction, how much charge flows through a point in the circuit during the change?

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?