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

Author Question: A race car circles 10 times around an 8-km track in 20 min. What is its average velocity per lap? ... (Read 59 times)

serike

  • Hero Member
  • *****
  • Posts: 542
on: Jul 27, 2018
A race car circles 10 times around an 8-km track in 20 min. What is its average velocity per lap?
 
  What will be an ideal response?

Question 2

A leaf falls from a tree. Compare its kinetic energy K to its potential energy U.
 
  A) K increases, and U decreases.
  B) K decreases, and U increases.
  C) K decreases, and U decreases.
  D) K increases, and U increases.
  E) K and U remain constant.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

miss.ashley

  • Sr. Member
  • ****
  • Posts: 371
Reply #1 on: Jul 27, 2018
Answer to Question 1

Average lap velocity is 0.

Answer to Question 2

A


serike

  • Member
  • Posts: 542
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

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?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Health and Race-Ethnicity Health and Race-Ethnicity
The Funneling Efffects of Education: Race-Ethnicity The Funneling Efffects of Education: Race-Ethnicity
The average percentages by polygraph exams The average percentages by polygraph exams
A ship is being pulled through a harbor at constant velocity by two tugboats as shown in the ... A ship is being pulled through a harbor at constant velocity by two tugboats as shown in the ...
If you walk 5.0 m horizontally forward at a constant velocity carrying a 10 N object, the ... If you walk 5.0 m horizontally forward at a constant velocity carrying a 10 N object, the ...
The temperature of an average lightning bolt is 3.0 x 104 °C. What is the equiva The temperature of an average lightning bolt is 3.0 x 104 °C. What is the equiva
Video: Net filtration pressure and lymph formation, edema & blood velocity

For a complete list of videos, visit our video library