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 94 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?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

The features found in a long bone. The features found in a long bone.
Starting at the waist, apply circular two-handed petrissage over the entire right side. Keep hands ... Starting at the waist, apply circular two-handed petrissage over the entire right side. Keep hands ...
Cradle the head to finish. Rest the head on the table. Place your fingers on the sides of the head ... Cradle the head to finish. Rest the head on the table. Place your fingers on the sides of the head ...
In a room where g = 9.81 m/s2, a hockey puck slides off the edge of a platform with an initial ... In a room where g = 9.81 m/s2, a hockey puck slides off the edge of a platform with an initial ...
A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ... A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ...
The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ... The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ...
Video: Audiology

For a complete list of videos, visit our video library