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

Author Question: Is it possible for the total mechanical energy of a moving particle to be negative? a. No, because ... (Read 89 times)

ghost!

  • Hero Member
  • *****
  • Posts: 560
on: Jul 28, 2018
Is it possible for the total mechanical energy of a moving particle to be negative?
 a. No, because a moving particle has positive kinetic energy.
  b. No, because potential energy cannot have a value more negative than the value of the positive kinetic energy of the particle.
  c. Only if friction is involved. d. Yes

Question 2

If a heat engine has an efficiency of 30 and its power output is 600 W, what is the rate of heat input from the combustion phase?
 a. 1800 W
  c. 2000 W
  b. 2400 W
  d. 3000 W


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

todom5090

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

C


ghost!

  • Hero Member
  • *****
  • Posts: 560
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


todom5090

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

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

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Basic overview of energy and human life. Basic overview of energy and human life.
Explaining “Moving Continents”— The Theory of Plate Tectonics Explaining “Moving Continents”— The Theory of Plate Tectonics
Effleurage as a finishing and transition technique. Finish the left side with effleurage moving back ... Effleurage as a finishing and transition technique. Finish the left side with effleurage moving back ...
The Three Components of Energy Needs The Three Components of Energy Needs
Energy Resources: Fossil Fuels Energy Resources: Fossil Fuels
Energy Transfer Energy Transfer
Video: A timeline of the teeth (Explained - No Audio)

For a complete list of videos, visit our video library