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

Author Question: Two thin-walled concentric conducting spheres of radii 5.0 cm and 10 cm have a potential difference ... (Read 77 times)

LaDunn

  • Hero Member
  • *****
  • Posts: 526
on: Jul 29, 2018
Two thin-walled concentric conducting spheres of radii 5.0 cm and 10 cm have a potential difference of 100 V between them.
 
  (k = 1/40 = 8.99  109 N  m2/C2)
  (a) What is the capacitance of this combination?
  (b) What is the charge carried by each sphere?

Question 2

Blocks A and B of masses 10 kg and 7 kg, respectively, are connected by a rope, which passes over a light frictionless pulley, as shown. The horizontal surface is rough. The coefficients of static and kinetic friction are 0.40 and 0.20, respectively.
 
  External forces P and Q act on block B, as shown. In Figure 5.20, force P equals 28 N. The maximum value of force Q, for which the system remains at rest is closest to: A) 140 N
  B) 120 N
  C) 98 N
  D) 110 N
  E) 130 N


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Leostella20

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 11 pF (b) 1.1 nC

Answer to Question 2

A


LaDunn

  • Hero Member
  • *****
  • Posts: 526
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


Leostella20

  • Sr. Member
  • ****
  • Posts: 337
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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.

The phases and ionic basis of an action potential. The phases and ionic basis of an action potential.
Neuronal action potential. Neuronal action potential.
Phases of the myocardial action potential. Ion movements during each phase are shown. Phases of the myocardial action potential. Ion movements during each phase are shown.
Potential energy Vs. Kinetic energy Potential energy Vs. Kinetic energy
A thin cleft, called the synapse, separates one cell from another. A thin cleft, called the synapse, separates one cell from another.
Action Potential Summary Action Potential Summary
Video: Medullary osmotic gradient - influencing factors

For a complete list of videos, visit our video library