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

Author Question: Two billiard balls have velocities of 2.0 m/s and -1.0 m/s when they meet in an elastic head-on ... (Read 32 times)

Melani1276

  • Hero Member
  • *****
  • Posts: 516
Two billiard balls have velocities of 2.0 m/s and -1.0 m/s when they meet in an elastic head-on collision. What is the final velocity of the second ball after collision?
 a. +2.0 m/s
  c. -0.5 m/s
  b. -1.0 m/s
  d. +1.0 m/s

Question 2

A charge Q accumulates on the hollow metallic dome, of radius R, of a Van de Graaff generator. A probe measures the electric field strength at various points outside the sphere surface. If the probe is initially at a distance 3R from the sphere's center and then is moved to 5R, by what factor will the electric field reading change?
 a. 3/5
  c. 5/3
  b. (5/3)2
  d. (3/5)2



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

guyanai

  • Sr. Member
  • ****
  • Posts: 349
Answer to Question 1

A

Answer to Question 2

D



Melani1276

  • Hero Member
  • *****
  • Posts: 516
Both answers were spot on, thank you once again



guyanai

  • Sr. Member
  • ****
  • Posts: 349

 

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

For a complete list of videos, visit our video library