Question

according to the law of conservation of energy, which changes would increase the total energy of a system?
a. an addition of 200 j of thermal energy and a loss of 550 j of thermal energy
b. an addition of 300 j of gpe and a loss of 450 j of thermal energy
c. an addition of 500 j of kinetic energy and a loss of 450 j of thermal energy
d. an addition of 400 j of thermal energy and a loss of 550 j of kinetic energy

Explanation:

Step1: Calculate net energy change for option A

Net energy change = $200 - 550=- 350$ J

Step2: Calculate net energy change for option B

Net energy change = $300 - 450=-150$ J

Step3: Calculate net energy change for option C

Net energy change = $500 - 450 = 50$ J

Step4: Calculate net energy change for option D

Net energy change = $400 - 550=-150$ J

Answer:

C. An addition of 500 J of kinetic energy and a loss of 450 J of thermal energy