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 73 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?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Common skin signs are often evidence of an illness or disorder. A scale is a thin, dry flake of ... Common skin signs are often evidence of an illness or disorder. A scale is a thin, dry flake of ...
Refractory periods associated with an action potential. Refractory periods associated with an action potential.
Concentric double-pipe heat exchanger for counter-current flow Concentric double-pipe heat exchanger for counter-current flow
The averaging of an auditory evoked potential. Averaging increases the signal-to-noise ratio. The averaging of an auditory evoked potential. Averaging increases the signal-to-noise ratio.
Synaptic transmission. (a) Action potential reaches synapse; (b) neurotransmitter released synaptic ... Synaptic transmission. (a) Action potential reaches synapse; (b) neurotransmitter released synaptic ...
Potential Interactions of Medications, Herbs, Nutrients, and Foods (2 of 2) Potential Interactions of Medications, Herbs, Nutrients, and Foods (2 of 2)
Video: ribosome

For a complete list of videos, visit our video library