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

Author Question: A force of 200 N is applied to a 50-kg mass in the direction of motion for a distance of 6.0 m, and ... (Read 18 times)

danielfitts88

  • Hero Member
  • *****
  • Posts: 535
on: Jul 28, 2018
A force of 200 N is applied to a 50-kg mass in the direction of motion for a distance of 6.0 m, and then the force is increased to 300 N for the next 5.0 m. For the 11 m of travel, how much work is done by the varying force?
 a. 2700 J
  b. 1500 J
  c. 2400 J
  d. -1200 J

Question 2

A system is acted on by its surroundings in such a way that it receives 50 J of heat while simultaneously doing 70 J of work. What is its net change in internal energy?
 a. 70 J
  c. zero
  b. -20 J
  d. 20 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

helenmarkerine

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


danielfitts88

  • Member
  • Posts: 535
Reply 2 on: Jul 28, 2018
Excellent

nyrave

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Range of Motion of the Temporomandibular Joint, Pushing Out the Lower Jaw Range of Motion of the Temporomandibular Joint, Pushing Out the Lower Jaw
Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
Using Parallax to Determine Distance Using Parallax to Determine Distance
Effect of a Black Hole’s Tidal Force on Infalling Matter Effect of a Black Hole’s Tidal Force on Infalling Matter
A goniometer is used to measure range of motion of the patient’s arm. A goniometer is used to measure range of motion of the patient’s arm.
A forklift pushes a 100-kg crate, starting from rest, exerting a horizontal force of magnitude ... A forklift pushes a 100-kg crate, starting from rest, exerting a horizontal force of magnitude ...
Video: Cellular defenses (natural killer cells, phagocyte types & process of phagocytosis)

For a complete list of videos, visit our video library