« previous next »

Author Question: Which of the following is not true about potential energy? a. Potential energy is stored energy. ... (Read 107 times)

acc299

  • Hero Member
  • *****
  • Posts: 569
on: Jul 28, 2018
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
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

An Action Potential An Action Potential
Men are more apt to say they are looking for a potential mate who is physically attractive, whereas ... Men are more apt to say they are looking for a potential mate who is physically attractive, whereas ...
Pyramids of energy, biomass, and numbers Pyramids of energy, biomass, and numbers
Global Energy Flow Global Energy Flow
El Niño events release energy El Niño events release energy
How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C
Video: Secretin (inhibiting gastric acid secretion), Cholecystokinin (fat digestion) & Cholecystokinin

For a complete list of videos, visit our video library