(Figure 1) Figure Energy (1) 4 3- 2 < 1001 > K₁ + U₁ + W K₁ + U₁ + AE Part A How much work is done by the environment in the process shown in the figure? Express your answer with the appropriate units. We Submit ▾ Part B Value Submit Request Answer Provide Feedback is energy transfered from the environment to the system or from the system to the environment? O Energy is transferred from the environment to the system Energy is transferred from the system to the environment Units Request Answer ?

QUESTION 5 Which of the following statements about energy is not true? The mechanical energy of a physical system is constant when the forces acting on the system are all conservative forces. a. O b. According to the work-energy theorem, the forces that contribute to the net work include all the conservative and nonconservative forces. c. The total energy of the universe is always conserved. O d. Energy can change form, but it cannot be created or destroyed. O e. Mechanical energy is always conserved ONH

Problem 10.39 (Figure 1) Figure Energy (J) 4- 3 2- 1 0 -1 -2 + 1 of 1 K₁ + U₁ + Wext K₁ + Uf + AEth Part A How much work is done by the environment in the process shown in the figure? Express your answer with the appropriate units. Wext = Submit Part B O I Submit μÅ Provide Feedback Value Request Answer Ps Is energy transferred from the environment to the system or from the system to the environment? Units O Energy is transferred from the environment to the system. O Energy is transferred from the system to the environment. Request Answer ? 15 of 25 Review Next >

A 75 kg student walks up three flights of stairs, a vertical height of about 14 m. Part A If the magnitude of the average rate at which the gravity force does work on the student equals 500 W, how long would it take the student to travel up the three fights of stairs? Express your answer with the appropriate units. Value Submit Request Answer Units < Return to Assignment Provide Feedback ?

answer c only. Please explain work in detail.