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

Author Question: A horizontal force of 200 N is applied to a 55-kg cart across a 10 m level surface. If the cart ... (Read 95 times)

rayancarla1

  • Hero Member
  • *****
  • Posts: 571
on: Jul 28, 2018
A horizontal force of 200 N is applied to a 55-kg cart across a 10 m level surface. If the cart accelerates at 3.0 m/s2, then what is the work done by the force of friction as it acts to retard the motion of the cart?
 a. -900 J
  c. -350 J
  b. -175 J
  d. -700 J

Question 2

On a PV diagram, 2 curves are plotted, both starting at the same point (P1, V1) and both ending at the same increased volume (V2). One curve is for an isothermal process; the other is for an adiabatic process. Except for the common starting point, which curve is the upper one?
 a. The isothermal process curve will always be the upper one.
  b. The adiabatic process curve will always be the upper one.
  c. Since they start at the same point and end at the same volume, they will coincide.
  d. The isothermal one will start out higher, but the adiabatic one will eventually cross it.


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

A


rayancarla1

  • Member
  • Posts: 571
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

ryansturges

  • Member
  • Posts: 338
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

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?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how
Drag Force in a Climb Drag Force in a Climb
The Coriolis Force The Coriolis Force
Surface impoundments Surface impoundments
Many U.S. regions under threat due to changes in sea level Many U.S. regions under threat due to changes in sea level
Frenching a Rack: Removing fat from rack’s surface Frenching a Rack: Removing fat from rack’s surface
Video: Protein Structure - Primary, Secondary, Tertiary and Quaternary

For a complete list of videos, visit our video library