« previous next »

Author Question: The internal energy of an ideal gas is changed by adding heat Q to the system and also by doing work ... (Read 63 times)

tsand2

  • Hero Member
  • *****
  • Posts: 520
on: Jul 29, 2018
The internal energy of an ideal gas is changed by adding heat Q to the system and also by doing work W on the gas. What is the change in internal energy of the gas?
 
  A)
 
  4.186Q - W
 
  B)
 
  Q - 4.186W
 
  C)
 
  W - Q
 
  D)
 
  Q + W
 
  E)
 
  Q - W

Question 2

An electromagnetic wave with components Ey = Eo sin(kx - t) and Bz = Bo sin(kx - t) is a wave traveling in the
 
  A)
 
  negative x-direction.
  B)
 
  x-direction.
  C)
 
  y-direction.
  D)
 
  z-direction.
  E)
 
  cannot be determined with the information given


Ddddd

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Lymphatic system. Lymphatic system.
As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ... As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ...
The cardiovascular system. The cardiovascular system.
Kyo and jitsu-concept of energy deficiency and excess from shiatsu. Kyo and jitsu-concept of energy deficiency and excess from shiatsu.
The Oceanic Ridge System The Oceanic Ridge System
Infections in the Digestive System Infections in the Digestive System
Video: Structures that affect circulation - kidneys and blood volume and skeletal muscle pumping

For a complete list of videos, visit our video library