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

Author Question: When a spinning ice skater pulls in his arms, he spins faster because ________. A) there exists ... (Read 160 times)

renzo156

  • Hero Member
  • *****
  • Posts: 526
on: Jul 27, 2018
When a spinning ice skater pulls in his arms, he spins faster because ________.
 
  A) there exists an unbalanced reaction force
  B) there is less friction with the ice
  C) there is less friction with the air
  D) his angular momentum must be conserved, so reducing his radius must increase his speed of rotation

Question 2

Which object has aged the most since it emitted the light we see today?
 
  A) the Sun B) Pluto
  C) a star near the center of the Milky Way D) a star in the Andromeda Galaxy


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Benayers

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


renzo156

  • Member
  • Posts: 526
Reply 2 on: Jul 27, 2018
:D TYSM

kjohnson

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

The anatomical position: standing erect, gazing straight ahead, arms down at sides, palms facing for The anatomical position: standing erect, gazing straight ahead, arms down at sides, palms facing for
The first mill operations performed only the task of spinning wool, cotton, and The first mill operations performed only the task of spinning wool, cotton, and
After lowering the vehicle, be sure all arms of the lift are moved out of the way before driving the ... After lowering the vehicle, be sure all arms of the lift are moved out of the way before driving the ...
With the rocker arms contacting the base circle of the cam, insert a feeler gauge of the specified ... With the rocker arms contacting the base circle of the cam, insert a feeler gauge of the specified ...
The Arctic is warming faster than any other region on Earth The Arctic is warming faster than any other region on Earth
The density of Pb(s) is 11.34 g/cm3. Pb(s) exists in the cubic-closest packed structure The density of Pb(s) is 11.34 g/cm3. Pb(s) exists in the cubic-closest packed structure
Video: Structures that affect circulation - heart and systolic/diastolic BP

For a complete list of videos, visit our video library