Author Question: How much work is required to stretch an ideal spring of spring constant (force constant) 40 N/m from ... (Read 251 times)

imowrer

  • Hero Member
  • *****
  • Posts: 514
How much work is required to stretch an ideal spring of spring constant (force constant) 40 N/m from x = 0.20 m to x = 0.25 m if the unstretched position is at x = 0.00 m?
 
  A) 0.45 J
  B) 0.80 J
  C) 1.3 J
  D) 0.050 J

Question 2

A puck with a mass m1 = 50 g moving at 1.0 m/s approaches a stationary puck with a mass m2 = 100 g on a frictionless air table, and they undergo a sudden two-dimensional elastic collision.
 
  After the collision, both pucks have identical speeds, but travel in different directions. What is the angle between the original and final paths of puck with mass m1? A) 30
  B) 60
  C) 90
  D) 120
  E) 150


Jevvish

  • Sr. Member
  • ****
  • Posts: 326
Answer to Question 1

A

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

For a complete list of videos, visit our video library