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

Author Question: An object moves in a circular path at a constant speed. Compare the direction of the object's ... (Read 139 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
on: Jul 29, 2018
An object moves in a circular path at a constant speed. Compare the direction of the object's velocity and acceleration vectors.
 
  A) Both vectors point in the same direction.
  B) The vectors point in opposite directions.
  C) The vectors are perpendicular to each other.
  D) The acceleration is zero but the velocity is constant.

Question 2

Which of these uses thermal energy to do work?
 
  A) a person walking uphill
  B) a hot air balloon
  C) an electric heater
  D) All of the above.
  E) None of the above.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

JaynaD87

  • Sr. Member
  • ****
  • Posts: 368
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

B


penza

  • Hero Member
  • *****
  • Posts: 1,022
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


JaynaD87

  • Sr. Member
  • ****
  • Posts: 368
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en
1-16 The Sun’s Daily Path and the Energy It Deposits Here 1-16 The Sun’s Daily Path and the Energy It Deposits Here
Reversible phosphorylation and direction of mRNP nuclear export Reversible phosphorylation and direction of mRNP nuclear export
Reach from behind to apply circular friction to the temples on both sides. Reach from behind to apply circular friction to the temples on both sides.
Circular palmar petrissage back up the spine from buttocks to shoulders. Tissues lift as hands trace ... Circular palmar petrissage back up the spine from buttocks to shoulders. Tissues lift as hands trace ...
How do i calulate an object of that is dropped from (g=9.80m/s2) for 5 s before hitting the ... How do i calulate an object of that is dropped from (g=9.80m/s2) for 5 s before hitting the ...
Video: Red alga life cycle Animation

For a complete list of videos, visit our video library