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 59 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
Wow, this really help

cdmart10

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Statistics Center (07/2016) Statistics Center (07/2016)
Santiago Calatrava, Port Authority Trans Hudson (PATH) station, World Trade Center site. Santiago Calatrava, Port Authority Trans Hudson (PATH) station, World Trade Center site.
Do you know what that large object in the center of the photo is? In the 1920s, 30s, and 40s, ... Do you know what that large object in the center of the photo is? In the 1920s, 30s, and 40s, ...
Social scientists have not done well at devising theories to explain lovely romantic moments Social scientists have not done well at devising theories to explain lovely romantic moments
Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA ... Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA ...
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately
Video: Junction Types - Tight and Adherens Junctions

For a complete list of videos, visit our video library