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 3 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
YES! Correct, THANKS for helping me on my review

cam1229

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

DNA molecules replicate to form identical chromatids DNA molecules replicate to form identical chromatids
concept map : atoms and molecules concept map : atoms and molecules
Bright-Line Spectra of Hydrogen and Helium Bright-Line Spectra of Hydrogen and Helium
Biological Molecules Biological Molecules
A balloon filled with helium gas at 20°C occupies 2.91 L at 1.00 atm. The balloon is immersed ... A balloon filled with helium gas at 20°C occupies 2.91 L at 1.00 atm. The balloon is immersed ...
Making recombinant DNA molecules Making recombinant DNA molecules
Video: Glycolysis - Introduction to ATP and the burning of sugar

For a complete list of videos, visit our video library