Author Question: When a freely falling object reaches its terminal speed, a. it is still accelerating b. its ... (Read 68 times)

Coya19@aol.com

  • Hero Member
  • *****
  • Posts: 601
When a freely falling object reaches its terminal speed,
 a. it is still accelerating
  b. its acceleration is zero
  c. it is decelerating
  d. its acceleration cannot be determined

Question 2

Making a laser work depends on creating a population inversion, meaning a situation in which:
 a. most electrons are in the lower energy state.
  b. most photons are in the lower energy state.
  c. more electrons are in a high-energy than a low-energy state.
  d. the directions of electron motion are reversed, or inverted.
  e. more photons are in a high-energy than a low-energy state.



bhavsar

  • Sr. Member
  • ****
  • Posts: 351
Answer to Question 1

B

Answer to Question 2

c



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

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.

For a complete list of videos, visit our video library