What is the resistance of a nichrome wire at 0.0 âc if its resistance is 100.00 ï at 11.5 âc? express your answer using four significant figures?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Explain why electric current cannot exist if a current doesn't have a voltage source.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?