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

Author Question: Explain the significance of the center of gravity. What will be an ideal ... (Read 60 times)

Medesa

  • Hero Member
  • *****
  • Posts: 507
on: Jul 29, 2018
Explain the significance of the center of gravity.
 
  What will be an ideal response?

Question 2

Silver has a Fermi level (energy) of 5.5 eV. At 0 K, at what speed would the electrons be moving if they had kinetic energy equal to the Fermi energy?
 
  (This speed is known as the Fermi speed.) (mel = 9.11  10-31 kg, 1 eV = 1.60  10-19 J, h = 6.626  10-34 J  s)
  A) 1100 km/s B) 1400 km/s C) 2.2 km/s D) 1.0 km/s E) 3.5 km/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

matt95

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

The center of gravity of an object is that point at which the force of gravity can be considered to act. The force of gravity actually acts on all the different parts or particles of an object, but for purposes of determining the translational motion of an object as a whole, it is safe to assume that the entire weight of the object acts at the center of gravity.

Answer to Question 2

B


Medesa

  • Member
  • Posts: 507
Reply 2 on: Jul 29, 2018
Excellent

AmberC1996

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Growth Chart for American Girls From Birth Through Age 3 Growth slows from infancy to toddlerhood b Growth Chart for American Girls From Birth Through Age 3 Growth slows from infancy to toddlerhood b
The Kaaba, center of the Haram Mosque, Mecca, Saudi Arabia. The Kaaba, center of the Haram Mosque, Mecca, Saudi Arabia.
What are examples of ideal forms? What are examples of ideal forms?
The responses of an on-center cell to contrast. The responses of an on-center cell to contrast.
Apply petrissage to center of abdomen. Place hands palm over palm in center of the abdomen. Create ... Apply petrissage to center of abdomen. Place hands palm over palm in center of the abdomen. Create ...
A tightrope walker walks across a 30-m long wire tied between two poles. The center of the wire ... A tightrope walker walks across a 30-m long wire tied between two poles. The center of the wire ...
Video: Embryonic development - week 1 and 2

For a complete list of videos, visit our video library