A small object is placed at right angles to the axis of a fixed concave mirror so as to form i) real ii) a virtual image twice as long as the object It the radius of curvature is 40cm what is the
distance between the two images?​ (number 4)
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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