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

Author Question: A 50-N crate is pulled up a 5.0-m inclined plane by a worker at constant velocity. If the plane is ... (Read 301 times)

RYAN BANYAN

  • Hero Member
  • *****
  • Posts: 563
on: Jul 28, 2018
A 50-N crate is pulled up a 5.0-m inclined plane by a worker at constant velocity. If the plane is inclined at an angle of 37 to the horizontal and there exists a constant frictional force of 20 N between the crate and the surface, what is the force applied by the worker?
 a. zero
  c. 30 N
  b. 50 N
  d. 40 N

Question 2

If one could observe the individual atoms making up a piece of matter and note that during a process of change their motion somehow became more orderly, then one may assume which of the following in regard to the system?
 a. increases in entropy
  c. gains in thermal energy
  b. decreases in entropy
  d. positive work done on


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Rilsmarie951

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

D


RYAN BANYAN

  • Member
  • Posts: 563
Reply 2 on: Jul 28, 2018
Gracias!

covalentbond

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

For this bimolecular reaction, the rate constant k is second order For this bimolecular reaction, the rate constant k is second order
Rain seen from a plane Rain seen from a plane
Orbital Plane Orbital Plane
A ship is being pulled through a harbor at constant velocity by two tugboats as shown in the ... A ship is being pulled through a harbor at constant velocity by two tugboats as shown in the ...
At 34.5°C, oxygen gas expands from 34.5 L to 45.7 L against a constant pressure of 750 mmHg. ... At 34.5°C, oxygen gas expands from 34.5 L to 45.7 L against a constant pressure of 750 mmHg. ...
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: Sigmoidoscopy

For a complete list of videos, visit our video library