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 54 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
Gracias!

olderstudent

  • Member
  • Posts: 339
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

The Sun is the star at the center of the Solar System. The Sun is the star at the center of the Solar System.
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
Gravity Gravity
As cities evolve, so does architecture. This photo is of the Exhibition and Conference Center in ... As cities evolve, so does architecture. This photo is of the Exhibition and Conference Center in ...
Combustion chamber volume is the volume above the piston with the piston at top dead center. Combustion chamber volume is the volume above the piston with the piston at top dead center.
Explain how it can be desirable from an intertemporal perspective for a country run a current ... Explain how it can be desirable from an intertemporal perspective for a country run a current ...
Video: Chemical Synapse Animation

For a complete list of videos, visit our video library