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

Author Question: In a given frictionless displacement of a particle, its kinetic energy increases by 25 J while its ... (Read 56 times)

ashley

  • Hero Member
  • *****
  • Posts: 584
on: Jul 28, 2018
In a given frictionless displacement of a particle, its kinetic energy increases by 25 J while its potential energy decreases by 10 J. Determine the work of the nonconservative forces acting on the particle during this displacement.
 a. -15 J
  b. +35 J
  c. +15 J
  d. -35 J
  e. +55 J

Question 2

A 2.0-kg block sliding on a rough horizontal surface is attached to one end of a horizontal spring (k = 250 N/m) which has its other end fixed. The block passes through the equilibrium position with a speed of 2.6 m/s and first comes to rest at a displacement of 0.20 m from equilibrium. What is the coefficient of kinetic friction between the block and the horizontal surface?
 a. 0.32
  b. 0.45
  c. 0.58
  d. 0.19
  e. 0.26


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rosiehomeworddo

  • Sr. Member
  • ****
  • Posts: 306
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

B


ashley

  • Member
  • Posts: 584
Reply 2 on: Jul 28, 2018
Excellent

bbburns21

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Activation energy graph Activation energy graph
Worldwide Use of Nuclear Energy Worldwide Use of Nuclear Energy
Energy changes in reactions. Energy changes in reactions.
Metabolic pathways involved in lipolysis, the breakdown of fats (triglycerides) for energy. Metabolic pathways involved in lipolysis, the breakdown of fats (triglycerides) for energy.
Resonance transfer of energy in a light-harvesting complex Resonance transfer of energy in a light-harvesting complex
In Falls, Energy Is Transmitted Along the Skeletal System In Falls, Energy Is Transmitted Along the Skeletal System
Video: Molecules, Membrane Permeability and Structure

For a complete list of videos, visit our video library