Author Question: Which of the following is not true about potential energy? a. Potential energy is stored energy. ... (Read 116 times)

acc299

  • Hero Member
  • *****
  • Posts: 569
Which of the following is not true about potential energy?
 a. Potential energy is stored energy.
  c. Potential energy is a scalar quantity.
  b. Potential energy is related to position.
  d. Potential energy has direction.

Question 2

During each cycle of operation a refrigerator absorbs 45 cal from the freezer compartment and expels 85 cal to the room. If one cycle occurs every 8.0 s, how many minutes will it take to freeze 500 g of water, initially at 0C? (Lv = 80 cal/g)
 a. 800 min
  c. 120 min
  b. 4400 min
  d. 150 min



meganmoser117

  • Sr. Member
  • ****
  • Posts: 303
Answer to Question 1

D

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

There are 60,000 miles of blood vessels in every adult human.

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?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

For a complete list of videos, visit our video library