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

Author Question: A ballet dancer is spinning in the middle of a horizontal frictionless stage. Which of the following ... (Read 468 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
on: Jul 29, 2018
A ballet dancer is spinning in the middle of a horizontal frictionless stage. Which of the following things could he change by moving parts of his body or his whole body? (There could be more than one correct choice.)
 
  A) his total kinetic energy
  B) the location of his center of mass (or center of gravity)
  C) his angular momentum
  D) the horizontal component of his linear momentum
  E) his rotational kinetic energy
  F) his translational kinetic energy
  G) his moment of inertia

Question 2

A small but dense 2.0-kg stone is attached to one end of a very light rod that is 1.2 m long. The other end of the rod is attached to a frictionless pivot. The rod is raised until it is vertical, with the stone above the pivot.
 
  The rod is released and the stone moves in a vertical circle with no air resistance. What is the force that the rod exerts on the stone as the stone moves through the bottom of the circle? A) 20 N
  B) 40 N
  C) 60 N
  D) 80 N
  E) 100 N
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

alexanderhamilton

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


shofmannx20

  • Hero Member
  • *****
  • Posts: 562
Reply #2 on: Jul 29, 2018
Thanks


alexanderhamilton

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

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.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Both men and women gain weight in young adulthood and middle adulthood, losing in the late 50s, but Both men and women gain weight in young adulthood and middle adulthood, losing in the late 50s, but
Hormonal Changes in Puberty Girls and boys follow very different hormonal paths at this life stage Hormonal Changes in Puberty Girls and boys follow very different hormonal paths at this life stage
3D Plant Layout - Side View for Dual-Stage Pressure Production of Nitric Acid 3D Plant Layout - Side View for Dual-Stage Pressure Production of Nitric Acid
Longitudinal and horizontal effleurage to the thigh. Apply with medium pressure to warm tissues. Longitudinal and horizontal effleurage to the thigh. Apply with medium pressure to warm tissues.
A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ... A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ...
Middle eastern kobab Middle eastern kobab
Video: Non-polar compounds - insolubility

For a complete list of videos, visit our video library