This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An 80,000-kg airliner is flying at 900 km/h at a height of 8.00 km. What is its total energy ... (Read 18 times)

rayancarla1

  • Hero Member
  • *****
  • Posts: 571
on: Jul 28, 2018
An 80,000-kg airliner is flying at 900 km/h at a height of 8.00 km. What is its total energy (kinetic + potential) if the total was 0 when the airliner was at rest on the ground?
 a. 250 MJ
  c. 8770 MJ
  b. 478 MJ
  d. 10,300 MJ

Question 2

An electrical power plant manages to send 88 of the heat produced in the burning of fossil fuel into the water-to-steam conversion. Of the heat carried by the steam, 30 is converted to the mechanical energy of the spinning turbine. Which of the following choices best describes the overall efficiency of the heat-to-work conversion in the plant (as a percentage)?
 a. greater than 88
  c. 30
  b. 64
  d. less than 30


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Rilsmarie951

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


rayancarla1

  • Member
  • Posts: 571
Reply 2 on: Jul 28, 2018
Wow, this really help

ricroger

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Total hip prosthesis. Total hip prosthesis.
Energy Chart Energy Chart
Energy of reactant molecules. Energy of reactant molecules.
Effect of a catalyst on activation energy Effect of a catalyst on activation energy
Energy drinks Energy drinks
Continuous Variation in Height (Males) Continuous Variation in Height (Males)
Video: Uterine (menstrual) cycle - phases

For a complete list of videos, visit our video library