A 300W hot plate produces 45,000 J of thermal energy while operating for 2 min. What is the efficiency of this devide?

29.1 percent 6–78 An inventor claims to have developed a heat engine that receives 700 kJ of heat from a source at 500 K and produces 300 kJ of net work while Solution Solution

Explanation:

answer is c

explanation:

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)