« previous next »

Author Question: When Mary is 3.00 m from the center of a merry-go-round, her tangential speed is a constant 1.88 ... (Read 90 times)

audie

  • Hero Member
  • *****
  • Posts: 532
on: Jul 29, 2018
When Mary is 3.00 m from the center of a merry-go-round, her tangential speed is a constant 1.88 m/s. (a) What is her angular speed in rad/s? (b) What is the magnitude of her linear acceleration?
 
  What will be an ideal response?

Question 2

Three identical 3.0-C charges are placed at the vertices of an equilateral triangle that measures 30 cm on a side. What is the magnitude of the electrostatic force on any one of the charges? (k = 1/40 = 9.0  109 N  m2/C2 )
 
  A) 1.6 N
  B) 1.8 N
  C) 2.0 N
  D) 2.2 N
  E) 2.4 N


perkiness

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 0.627 rad/s (b) 1.18 m/s2

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

The Speed of Light Is Constant The Speed of Light Is Constant
The initial timing is where the spark plug fires at idle speed. The computer then advances the ... The initial timing is where the spark plug fires at idle speed. The computer then advances the ...
The receptive fields of an on-center cell and an off-center cell. The receptive fields of an on-center cell and an off-center cell.
Reaction at constant-pressure Reaction at constant-pressure
At what speed does Grogzetti need to take the curve to avoid sliding? At what speed does Grogzetti need to take the curve to avoid sliding?
Escape Speed Problem Escape Speed Problem
Video: Cavernous Sinus Larynx Middle Ear Orbit: Granulesm Animation

For a complete list of videos, visit our video library