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

Author Question: A 20-N crate starting at rest slides down a rough 5.0-m long ramp, inclined at 25 with the ... (Read 96 times)

Jipu 123

  • Hero Member
  • *****
  • Posts: 569
on: Jul 28, 2018
A 20-N crate starting at rest slides down a rough 5.0-m long ramp, inclined at 25 with the horizontal. 30 J of energy is lost to friction. What will be the speed of the crate at the bottom of the incline?
 a. 0.98 m/s
  c. 3.5 m/s
  b. 2.1 m/s
  d. 4.7 m/s

Question 2

According to the first law of thermodynamics, for any process that may occur within an isolated system, which of the following choices applies?
 a. entropy remains constant
  c. entropy decreases
  b. entropy increases
  d. None of the above choices apply.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Bison

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


Jipu 123

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


Bison

  • Sr. Member
  • ****
  • Posts: 342
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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.

Levels of Processing Affects Long-Term but not Short-Term Memory Levels of Processing Affects Long-Term but not Short-Term Memory
Noon-Day Rest in Marble Canyon, after an original sketch by Thomas Moran, from J. W. Powell, ... Noon-Day Rest in Marble Canyon, after an original sketch by Thomas Moran, from J. W. Powell, ...
Long-term Potentiation in the granule cell layer of the rat hippocampal dentate gyrus. (Traces ... Long-term Potentiation in the granule cell layer of the rat hippocampal dentate gyrus. (Traces ...
Major Categories of Long-Term Memory Major Categories of Long-Term Memory
Thumb slides along the nose. Slide a thumb over the procerus muscle, then use both thumbs to slide ... Thumb slides along the nose. Slide a thumb over the procerus muscle, then use both thumbs to slide ...
Part of a Semantic Network in Long-Term Memory Part of a Semantic Network in Long-Term Memory
Video: Energy inputs and release in glycolysis Animation

For a complete list of videos, visit our video library