« previous next »

Author Question: A 2.0-kg block sliding on a frictionless horizontal surface is attached to one end of a horizontal ... (Read 315 times)

danielfitts88

  • Hero Member
  • *****
  • Posts: 535
on: Jul 28, 2018
A 2.0-kg block sliding on a frictionless horizontal surface is attached to one end of a horizontal spring (k = 600 N/m) which has its other end fixed. The speed of the block when the spring is extended 20 cm is equal to 3.0 m/s. What is the maximum speed of this block as it oscillates?
 a. 4.6 m/s
  b. 5.3 m/s
  c. 5.7 m/s
  d. 4.9 m/s
  e. 3.5 m/s

Question 2

The force an ideal spring exerts on an object is given by Fx = -kx, where x measures the displacement of the object from its equilibrium (x = 0) position. If k = 60 N/m, how much work is done by this force as the object moves from x = -0.20 m to x = 0?
 a. -1.2 J
  b. +1.2 J
  c. +2.4 J
  d. -2.4 J
  e. +3.6 J


carojassy25

  • Sr. Member
  • ****
  • Posts: 299
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

danielfitts88

  • Hero Member
  • *****
  • Posts: 535
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


carojassy25

  • Sr. Member
  • ****
  • Posts: 299
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

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?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

The Inner Surface of Human Lung The Inner Surface of Human Lung
T cells bound to fluorescence-tagged antibodies to two cell-surface proteins are T cells bound to fluorescence-tagged antibodies to two cell-surface proteins are
Block open the throttle (and choke, if the engine is equipped with a carburetor). Here a screwdriver ... Block open the throttle (and choke, if the engine is equipped with a carburetor). Here a screwdriver ...
Clear the tarsals, metatarsals, and toes. Stand at the end of the table, support the plantar surface ... Clear the tarsals, metatarsals, and toes. Stand at the end of the table, support the plantar surface ...
I need help soon some questions attached I need help soon some questions attached
Video: Interview with an Anorexic Woman (Part 1 of 2)

For a complete list of videos, visit our video library