This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An air conditioning unit is vibrating in simple harmonic motion with a period of 0.27 s and a range ... (Read 81 times)

LaDunn

  • Hero Member
  • *****
  • Posts: 526
on: Jul 29, 2018
An air conditioning unit is vibrating in simple harmonic motion with a period of 0.27 s and a range (from the maximum in one direction to the maximum in the other) of 3.0 cm. At t = 0 it is at its central position and moving in the +x direction.
 
  What is its position when t = 55 s? A)
 
  x = -0.430 cm
  B)
 
  x = -0.511 cm
  C)
 
  x = 0.511 cm
  D)
 
  x = -1.41 cm
  E)
 
  x = -1.44 cm

Question 2

A grinding wheel is spinning at a rate of 20.0 revolutions per second.
 
  When the power to the grinder is turned off, the grinding wheel slows with constant angular acceleration and takes 80.0 s to come to a rest.
  (a) What was the angular acceleration of the grinding wheel as it came to rest?
  (b) How many rotations did the wheel make during the time it was coming to rest?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xiaomengxian

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

(a) 1.57 rad/s2
(b) 800 revolutions


LaDunn

  • Member
  • Posts: 526
Reply 2 on: Jul 29, 2018
:D TYSM

tranoy

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Classical Conditioning and Systematic Desensitization Classical Conditioning and Systematic Desensitization
Schematic Diagram of Agitation Apparatus and other equipment (CHE415 Unit Operations) Schematic Diagram of Agitation Apparatus and other equipment (CHE415 Unit Operations)
Examples of visual fields of simple cortical cells. Examples of visual fields of simple cortical cells.
Two simple reflex arcs Two simple reflex arcs
Embryonic Period Embryonic Period
Embryonic Period Embryonic Period
Video: Cataract

For a complete list of videos, visit our video library