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

Author Question: A rocket accelerates due to the force exerted on it by the a. fuel. b. oxidizer. c. exhaust ... (Read 65 times)

Mr.Thesaxman

  • Hero Member
  • *****
  • Posts: 514
on: Jul 28, 2018
A rocket accelerates due to the force exerted on it by the
 
  a. fuel.
  b. oxidizer.
  c. exhaust gases.
  d. nozzle.
  e. booster.

Question 2

An 80 kg person walks up a flight of 3 m high stairs, then down the same flight of stairs to the person's original position. What is the change in the person's gravitational potential energy?
 
  a. 0 J
  b. 240 J
  c. 480 J
  d. 2352 J
  e. 4704 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dyrone

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

A


Mr.Thesaxman

  • Member
  • Posts: 514
Reply 2 on: Jul 28, 2018
Wow, this really help

isabelt_18

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Effect of a Black Hole’s Tidal Force on Infalling Matter Effect of a Black Hole’s Tidal Force on Infalling Matter
A typical injector-pump-type automotive diesel fuel injection system. A typical injector-pump-type automotive diesel fuel injection system.
Urea (diesel exhaust fluid) injection is used to reduce NOx exhaust emissions. It is injected after ... Urea (diesel exhaust fluid) injection is used to reduce NOx exhaust emissions. It is injected after ...
Typical exhaust manifold gaskets. Note how they are laminated to allow the exhaust manifold to ... Typical exhaust manifold gaskets. Note how they are laminated to allow the exhaust manifold to ...
To prevent ignition and fuel-injection operation while the engine is being cranked, remove both the ... To prevent ignition and fuel-injection operation while the engine is being cranked, remove both the ...
A gasoline direct-injection system injects fuel under high pressure directly into the combustion ... A gasoline direct-injection system injects fuel under high pressure directly into the combustion ...
Video: What are Strong & Weak Acids and How they're different?

For a complete list of videos, visit our video library