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

Author Question: What is a heat engine? a. A machine that heats up as it does work. b. A machine that produces ... (Read 94 times)

WhattoUnderstand

  • Hero Member
  • *****
  • Posts: 517
on: Jul 28, 2018
What is a heat engine?
 a. A machine that heats up as it does work.
  b. A machine that produces heat.
  c. A machine that destroys heat, cooling its surroundings.
  d. A machine that converts heat to work.
  e. A machine that transfers heat to surrounding cooler objects.

Question 2

In Joule's paddle-wheel experiment (shown here), why won't the weight rise when we heat the water?
 a. The random motion of water molecules hitting both sides of each paddle wheel does not result in a net force on one side of each paddle.
  b. Energy conservation would be violated because no external force is applied.
  c. The heat supplied by the flame does not provide sufficient energy to raise the weight.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bubulittle310@msn.cn

  • Sr. Member
  • ****
  • Posts: 281
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

a


WhattoUnderstand

  • Hero Member
  • *****
  • Posts: 517
Reply #2 on: Jul 28, 2018
Thanks


bubulittle310@msn.cn

  • Sr. Member
  • ****
  • Posts: 281
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

The work of Charles Darwin forms the foundation for modern evolutionary theory. The work of Charles Darwin forms the foundation for modern evolutionary theory.
Crossing over produces new allelic combinations Crossing over produces new allelic combinations
The rotating assembly for a V-8 engine that has eight pistons and connecting rods and one ... The rotating assembly for a V-8 engine that has eight pistons and connecting rods and one ...
A dual turbocharger system installed on a small block Chevrolet V-8 engine. A dual turbocharger system installed on a small block Chevrolet V-8 engine.
Air flows through the PCV valve during acceleration and when the engine is under a heavy load. Air flows through the PCV valve during acceleration and when the engine is under a heavy load.
Heat Loss by the Body Heat Loss by the Body
Video: Red alga life cycle Animation

For a complete list of videos, visit our video library