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 68 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
:D TYSM

robbielu01

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Gravity field of the Moon Gravity field of the Moon
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Gravity Works at All Scales Gravity Works at All Scales
To keep the foot under the center of gravity, the biped’s femur is angled from hip to knee. The quad To keep the foot under the center of gravity, the biped’s femur is angled from hip to knee. The quad
Plato (428–347 B.C.E.). Ancient Greek philosopher of extraordinary significance in the history of ... Plato (428–347 B.C.E.). Ancient Greek philosopher of extraordinary significance in the history of ...
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
Video: Fermentation pathways

For a complete list of videos, visit our video library