An electrical field has:
A) direction but not magnitude
B) magnitude but not direction
C) magnitude and direction
D)none of the above

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

What is the role of lenses in microscopy?

What are the necessary conditions for fusion?