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

Author Question: How many molecules are in: (a) 1.0 cm3 of AIR at STP? (b) 1.0 cm3 of HELIUM at ... (Read 5 times)

corkyiscool3328

  • Hero Member
  • *****
  • Posts: 539
on: Jul 29, 2018
How many molecules are in:
 
  (a) 1.0 cm3 of AIR at STP?
  (b) 1.0 cm3 of HELIUM at STP?

Question 2

The number of turns in the coil of a generator is reduced by a factor of 2 and at the same time it is rotated twice as fast keeping other factors constant. What happens to the value of the maximum induced emf?
 
  A) It is reduced by a factor of 2.
  B) It is reduced by a factor of 4.
  C) It is doubled.
  D) It stays the same.
  E) It is quadrupled.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

canderson530

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 29, 2018
Answer to Question 1

2.7  1019 molecules/cm3 for both

Answer to Question 2

D


corkyiscool3328

  • Member
  • Posts: 539
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

scottmt

  • Member
  • Posts: 322
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Shapes of molecules Shapes of molecules
Representations of molecules Representations of molecules
Energy of reactant molecules. Energy of reactant molecules.
Biological Molecules Biological Molecules
A color-enhanced electron micrograph of circular plasmid molecules A color-enhanced electron micrograph of circular plasmid molecules
Amplification of recombinant DNA molecules in bacteria Amplification of recombinant DNA molecules in bacteria
Video: Regulation of GFR: autoregulation via tubuloglomerular feedback, neural & hormonal regulation

For a complete list of videos, visit our video library