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

Author Question: Adisa pulls a 50-N crate up a 5.0-m long inclined plane at a constant velocity. If the plane is ... (Read 67 times)

Tirant22

  • Hero Member
  • *****
  • Posts: 532
on: Jul 28, 2018
Adisa pulls a 50-N crate up a 5.0-m long inclined plane at a constant velocity. If the plane is inclined at an angle of 37 to the horizontal and there is a constant force of friction of 10 N between the crate and the surface, what is the net change in potential energy of the crate?
 a. 120 J
  c. 250 J
  b. -120 J
  d. 150 J

Question 2

A 1.0-kg chunk of ice at 0C melts, absorbing 80,000 cal of heat in the process. Which of the following best describes what happens to this system?
 a. increased entropy
  c. entropy maintained constant
  b. lost entropy
  d. work converted to energy


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

olivia_paige29

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

A


Tirant22

  • Member
  • Posts: 532
Reply 2 on: Jul 28, 2018
Excellent

kthug

  • Member
  • Posts: 332
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

(a) The relative age ranges of different dating techniques depend upon the half-life of the system u (a) The relative age ranges of different dating techniques depend upon the half-life of the system u
Varieties of Long-Term Memory Varieties of Long-Term Memory
Brush off the back. Apply several long brushing strokes from head to hips to finish the session. Brush off the back. Apply several long brushing strokes from head to hips to finish the session.
Types of Long-Term Memories Types of Long-Term Memories
Long bone formation Long bone formation
Video: Introduction to Insulin

For a complete list of videos, visit our video library