This topic contains a solution. Click here to go to the answer

Author Question: A system undergoes a reversible cycle that traces a triangle in the p-V plane. In the first leg ... (Read 49 times)

serike

  • Hero Member
  • *****
  • Posts: 542
A system undergoes a reversible cycle that traces a triangle in the p-V plane.
 
  In the first leg of the cycle, the gas contracts at a constant pressure of 100 kPa from 30 L to 22 L; in the second leg, the pressure increases to 150 kPa, with the volume staying constant. In the third leg, the pressure and volume change so that the system follows the straight line that closes the triangle. How much heat is supplied to the system in each cycle? A) 200 J
  B) 300 J
  C) - 300 J
  D) 400 J
  E) - 400 J

Question 2

In using ray tracing to graphically locate the image of an object that is placed in front of a lens, describe three simple rays that you could draw that pass by the head of the object.
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xiaomengxian

  • Sr. Member
  • ****
  • Posts: 311
Answer to Question 1

A

Answer to Question 2

Ray 1: the vertex ray; i.e., the ray passing through the center of the lens, which emerges undeflected.
Ray 2: the parallel ray; i.e., the incoming ray parallel to the main axis, which is then refracted along a path that extends to the focal point.
Ray 3: the focal ray; i.e., the ray drawn toward the focal point, which is then refracted parallel to the main axis.





 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

For a complete list of videos, visit our video library