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 189 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?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Plant cell-to-cell junctions known as middle lamella Plant cell-to-cell junctions known as middle lamella
stage I pressure ulcer stage I pressure ulcer
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
In Canada, disease-related deaths become increasingly common during middle adulthood In Canada, disease-related deaths become increasingly common during middle adulthood
In the figure, a 10.0-m long bar is attached by a frictionless hinge to a wall and held ... In the figure, a 10.0-m long bar is attached by a frictionless hinge to a wall and held ...
An 82-kg painter stands on a long horizontal board 1.55 m from one end. This 27-kg board is ... An 82-kg painter stands on a long horizontal board 1.55 m from one end. This 27-kg board is ...
Video: Secretin (inhibiting gastric acid secretion), Cholecystokinin (fat digestion) & Cholecystokinin

For a complete list of videos, visit our video library