« previous next »

Author Question: A 2.00-m-long 6.00-kg ladder pivoted at the top hangs down from a platform at the circus. A 42.0-kg ... (Read 67 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
on: Jul 28, 2018
A 2.00-m-long 6.00-kg ladder pivoted at the top hangs down from a platform at the circus. A 42.0-kg trapeze artist climbs to a point where her center of mass is at the center of the ladder and swings at the system's natural frequency. The angular frequency (in s1) of the system of ladder and woman is
 a. 1.01.
  b. 3.07.
  c. 4.03.
  d. 8.05.
  e. 16.2.

Question 2

Suppose it were possible to drill a frictionless cylindrical channel along a diameter of the Earth from one side of the Earth to another. A body dropped into such a channel will only feel the gravitational pull of mass within a sphere of radius equal to the distance of the mass from the center of the Earth. The density of the Earth is 5.52  103 kg/m3 and G = 6.67  1011 N/m2/kg2 . The mass will oscillate with a period of
 a. 84.4 min.
  b. 169 min.
  c. 24.0 h.
  d. 1 130 h.
  e. 27.2 d.


amynguyen1221

  • Sr. Member
  • ****
  • Posts: 355
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
Reply #2 on: Jul 28, 2018
Thank you!


amynguyen1221

  • Sr. Member
  • ****
  • Posts: 355
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

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?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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.

Gross Anatomy of a Long Bone Gross Anatomy of a Long Bone
Long bones develop from several bony centers--one for the shaft and at least one for each end. The e Long bones develop from several bony centers--one for the shaft and at least one for each end. The e
The Long Valley Caldera Erupted the Bishop Ash 760,000 Years Ago The Long Valley Caldera Erupted the Bishop Ash 760,000 Years Ago
Ladder of molecular weights Ladder of molecular weights
Part of a Semantic Network in Long-Term Memory Part of a Semantic Network in Long-Term Memory
Video: How does an animal choose what food to eat?

For a complete list of videos, visit our video library