This topic contains a solution. Click here to go to the answer

Author Question: A 60-mC charge is held fixed at the origin and a -20-mC charge is held fixed on the x axis at a ... (Read 116 times)

pepyto

  • Hero Member
  • *****
  • Posts: 547
A 60-mC charge is held fixed at the origin and a -20-mC charge is held fixed on the x axis at a point x = 1.0 m. If a 10-mC charge is released from rest at a point x = 40 cm, what is its kinetic energy the instant it passes the point x = 70 cm?
 a. 9.8 J
  b. 7.8 J
  c. 8.8 J
  d. 6.9 J
  e. 2.8 J

Question 2

A particle (charge = 5.0 mC) is released from rest at a point x = 10 cm. If a 5.0-mC charge is held fixed at the origin, what is the kinetic energy of the particle after it has moved 90 cm?
 a. 1.6 J
  b. 2.0 J
  c. 2.4 J
  d. 1.2 J
  e. 1.8 J



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Moriaki

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

C

Answer to Question 2

B




pepyto

  • Member
  • Posts: 547
Reply 2 on: Jul 28, 2018
Wow, this really help


strudel15

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

For a complete list of videos, visit our video library