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 47 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?

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?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Concentric and Eccentric Muscle Actions Concentric and Eccentric Muscle Actions
A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ... A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ...
There Is a Difference between Natural and Added Sugars There Is a Difference between Natural and Added Sugars
A space probe approaches a planet, taking measurements as it goes. If it detects a potential ... A space probe approaches a planet, taking measurements as it goes. If it detects a potential ...
A 2-kg box of taffy candy has 40 J of potential energy relative to the ground. Its height above ... A 2-kg box of taffy candy has 40 J of potential energy relative to the ground. Its height above ...
Video: Lactation and Breast Feeding

For a complete list of videos, visit our video library