Question

A portable generator produces 2.6 kW of mechanical work with an efficiency of 0.19 to supply...

A portable generator produces 2.6 kW of mechanical work with an efficiency of 0.19 to supply electricity at a work site.

Part A

If the efficiency is increased but the work output remains the same, will the rate of fuel consumption by the engine increase, decrease, or stay the same?

A. Stay the same
B. Increase
C. Decrease

Part B

Will the rate of waste heat emission increase, decrease, or stay the same?

A. Stay the same
B. Decrease
C. Increase

Part C

Calculate the rate of fuel consumption for engine efficiency of 0.19. Express your answer to three significant figures and include appropriate units.

Part D

Calculate the rate of fuel consumption for engine efficiency of 0.29. Express your answer to three significant figures and include appropriate units.

Part E
Calculate the waste heat emission for engine efficiency of 0.19. Express your answer to two significant figures and include appropriate units.

Part F

Calculate the waste heat emission for engine efficiency of 0.29. Express your answer to two significant figures and include appropriate units.
Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Problem 21.28 A Carnot engine whose hot-reservoir temperature is 420 ∘C has a thermal efficiency of...
Problem 21.28 A Carnot engine whose hot-reservoir temperature is 420 ∘C has a thermal efficiency of 40 % . Part A By how many degrees should the temperature of the cold reservoir be decreased to raise the engine's efficiency to 61 % ? Express your answer to two significant figures and include the appropriate units. ΔTcold =
A car traveling 77 km/h slows down at a constant 0.50 m/s2 just by "letting up...
A car traveling 77 km/h slows down at a constant 0.50 m/s2 just by "letting up on the gas." Part A Calculate the distance the car coasts before it stops. Express your answer to two significant figures and include the appropriate units. Part B Calculate the time it takes to stop. Express your answer to two significant figures and include the appropriate units. Part C Calculate the distance it travels during the first second. Express your answer to two significant...
Suppose a 20-kW radio station emits EM waves uniformly in all directions. Part A How much...
Suppose a 20-kW radio station emits EM waves uniformly in all directions. Part A How much energy per second crosses a 1.4 m2 area 1 km from the transmitting antenna? Express your answer to two significant figures and include the appropriate units. Part B What is the rms magnitude of the E⃗ field at this point, assuming the station is operating at full power? Express your answer to two significant figures and include the appropriate units. Part C What is...
Problem: Predict/Calculate Problem 12.34 Part A Calculate the orbital period of a satellite that orbits at...
Problem: Predict/Calculate Problem 12.34 Part A Calculate the orbital period of a satellite that orbits at one Earth radii above the surface of the Earth. Express your answer to three significant figures and include appropriate units. Part C Calculate the orbital period of the satellite if the Earth’s mass were to double to 1.194×1025kg and everything else were to remain the same. Express your answer to three significant figures and include appropriate units. Express your answer to three significant figures...
a) An electric water heater holds 209 L. If electricity costs 0.19 $ per kWh, how...
a) An electric water heater holds 209 L. If electricity costs 0.19 $ per kWh, how much does it cost to raise the water temperature from 10 ?C to 65 ?C? Express your answer to two significant figures and include the appropriate units. b)How much energy is required to melt a 160 g copper cube initially at 948 ?C? Express your answer with the appropriate units.
A.) calculate the heat change in kilocalories for condensation of 3.5 kg of steam at 100...
A.) calculate the heat change in kilocalories for condensation of 3.5 kg of steam at 100 Celsius.(Express your answer as a positive value using two significant figures and include the appropriate units) B.) calculate the heat change in kilojoules for condensation of 185 g of steam at 100 Celsius. (Express your answer as a positive value using three significant figures and include the appropriate units)
An electron and a 140-gg baseball are each traveling 110 m/sm/s measured to a precision of...
An electron and a 140-gg baseball are each traveling 110 m/sm/s measured to a precision of 0.065 %% . Part A: Calculate the uncertainty in position of the electron. Express your answer to two significant figures and include the appropriate units. Part B: Calculate the uncertainty in position of the baseball. Express your answer to two significant figures and include the appropriate units. Part C: Compare the uncertainty in position of each. Express your answer using two significant figures.
Oxycodone (C18H21NO4), a narcotic analgesic, is a weak base with pKb=5.47. Part A Calculate the pH...
Oxycodone (C18H21NO4), a narcotic analgesic, is a weak base with pKb=5.47. Part A Calculate the pH in a 0.00270 M oxycodone solution. Express your answer using three significant figures. pH = 9.97 SubmitMy AnswersGive Up Correct Part B Calculate the concentrations of C18H21NO4 in a 0.00270 M oxycodone solution. Express your answer to two significant figures and include the appropriate units. SubmitMy AnswersGive Up Part C Calculate the concentrations of HC18H21NO+4 in a 0.00270 M oxycodone solution. Express your answer...
IP A parallel-plate capacitor has plates with an area of 1.3×10−2 m2 and a separation of...
IP A parallel-plate capacitor has plates with an area of 1.3×10−2 m2 and a separation of 0.82 mm . The space between the plates is filled with a dielectric whose dielectric constant is 2.0. Part A What is the potential difference between the plates when the charge on the capacitor plates is 4.2 μC ? Express your answer using two significant figures. V = V Previous AnswersRequest Answer Incorrect; Try Again; 4 attempts remaining Part B Will your answer to...
Part A) A volume of 90.0 mL of H2O is initially at room temperature (22.00 ∘C)....
Part A) A volume of 90.0 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.50 ∘C , what is the mass of the steel bar? Use the following values: specific heat of water = 4.18 J/(g⋅∘C) specific heat of steel = 0.452 J/(g⋅∘C) Express your answer to three significant figures and include the appropriate units. Part B) The...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT
Active Questions
  • A business PhD student who lived on a naval base, looked at prices of items at...
    asked 3 minutes ago
  • 1 Consider diversity, interpersonal communication, & technology in the workplace & explain the roles they may...
    asked 11 minutes ago
  • 1 Explain how "triggers to imbalance" in work-life balance influence the imbalance & how they can...
    asked 26 minutes ago
  • Spaulding is the leading maker for basketballs in the US. Spaulding prides itself on the quality...
    asked 37 minutes ago
  • Select True or False for the following statements about Heisenberg's Uncertainty Principle.  True False  It is possible to...
    asked 1 hour ago
  • Explain why, to maximize entropy, ice must remain at 0 degrees Celsius until all of it...
    asked 1 hour ago
  • THE CODE MUST BE PYTHON superHeroes = {   "MoleculeMan": {       "age": 29,       "secretIdentity": "Dan Jukes",       "superpowers":...
    asked 1 hour ago
  • Which of the four complexes of the mitochondrial electron transfer chain does not directly contribute to...
    asked 1 hour ago
  • Police response time to an emergency call is the difference between the time the call is...
    asked 1 hour ago
  • A space vehicle is traveling at 5030 km/h relative to Earth when the exhausted rocket motor...
    asked 1 hour ago
  • You have 3 parallel production lines which supply the assembly line. Acceptable quality percentage(AQP) for lines...
    asked 1 hour ago
  • A radio telescope with a diameter of 260m uses a wavelength of 4.5m to observe a...
    asked 1 hour ago