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 124 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

bulacsom

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

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?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Because the leg muscles of children with muscular dystrophy are weak, they must perform the Gowers’ Because the leg muscles of children with muscular dystrophy are weak, they must perform the Gowers’
Lie prone with your head turned to one side. Put your arms out to your sides and bend your elbows at ... Lie prone with your head turned to one side. Put your arms out to your sides and bend your elbows at ...
Oil is sent to the rocker arms on this Chevrolet V-8 engine through the hollow pushrods. The oil ... Oil is sent to the rocker arms on this Chevrolet V-8 engine through the hollow pushrods. The oil ...
The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
Video: Epidural Hematoma

For a complete list of videos, visit our video library