This topic contains a solution. Click here to go to the answer

Author Question: An object moves in a circular path at a constant speed. Compare the direction of the object's ... (Read 92 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
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
Answer to Question 1

C

Answer to Question 2

B



penza

  • Hero Member
  • *****
  • Posts: 1,022
Both answers were spot on, thank you once again



JaynaD87

  • Sr. Member
  • ****
  • Posts: 368

 

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

For a complete list of videos, visit our video library