A power plant has a power output of 1055 MW and operates with an efficiency of 0.330. Excess energy is carried away as heat from the plant to a nearby river. How much energy is transferred away from the power plant as heat? A. $0.348 \times 10^{9} \mathrm{J} / \mathrm{s}$, B. $0.520 \times 10^{9} \mathrm{J} / \mathrm{s}$, C. $0.707 \times 10^{9} \mathrm{J} / \mathrm{s}$, D. $2.14 \times 10^{9} \mathrm{J} / \mathrm{s}$.

The pressure of an automobile tire is measured to be 190 kPa (gage) before a trip and 215 kPa (gage) after the trip at a location where the atmospheric pressure is 95 kPa. If the temperature of air in the tire before the trip is 25$^\circ{}$C, the air temperature after the trip is (a) 51.1$^\circ{}$C (b) 64.2$^\circ{}$C (c) 27.2$^\circ{}$C (d) 28.3$^\circ{}$C (e) 25.0$^\circ{}$C

The gage pressure of an automobile tire is measured to be 200 kPa before a trip and 220 kPa after the trip at a location where the atmospheric pressure is 90 kPa. Assuming the volume of the tire remains constant at $0.035 \mathrm{m}^{3}$, determine the percent increase in the absolute temperature of the air in the tire.

In which of the following processes is no work done? A. Water is boiled in a pressure cooker. B. A refrigerator is used to freeze water. C. An automobile engine operates for several minutes. D. A tire is inflated with an air pump.

Does the second law of thermodynamics contradict or correct the first law? Argue for your answer.

If 1600 J of energy are transferred as heat to an engine and 1200 J are transferred as heat away from the engine to the surrounding air, what is the efficiency of the engine?

Write the limit as a definite integral on the interval [a, b], where c_i is any point in the ith subinterval. Limit: lim┬(‖Δ‖→0) ∑_(i=1)^n (3/c_i²)Δx_i Interval: [1, 3]

The energy provided each hour as heat to the turbine in an electric power plant is $9.5 \times 10^{12} \mathrm{J} . \text { If } 6.5 \times 10^{12} \mathrm{J}$ of energy is exhausted each hour from the engine as heat, what is_the efficiency of this heat engine?

After reading the feature on the next page, explain why opening the refrigerator door on a hot day does not cause your kitchen to become cooler.

A 3.0 kg rock is initially at rest at the top of a cliff. Assuming the rock falls into the sea at the bottom of the cliff and that its kinetic energy is transferred entirely to the water, how high is the cliff if the temperature of 1.0 kg of the water is raised $0.10^{\circ} \mathrm{C}$? (Ignore the heat capacity of the rock)

The freezing and boiling points of water on the imaginary “Too Hot” temperature scale are selected to be exactly 50 and 200 degrees TH. Calculate absolute zero in degrees TH.

An air conditioner is left running on a table in the middle of the room, so none of the air that passes through the air conditioner is transferred to outside the room. Taking the compressor motor into account, what would happen to the temperature of the room?

A 0.75 kg spike is hammered into a railroad tie. The initial speed of the spike is equal to 3.0 m/s. If the tie and spike together absorb 85 percent of the spike's initial kinetic energy, calculate the increase in internal energy of the tie and spike.

A compressor for a jackhammer expands the air in the hammer's cylinder at a constant pressure of $8.6 \times 10^{5}$ Pa. The increase in the cylinder's volume is $4.05 \times 10^{-4} \mathrm{m}^{3}$. During the process, 9.5 J of energy is transferred out of the cylinder as heat. What is the change in the air’s internal energy?