Author Question: An echo is a sound wave that has been a. diffracted b. refracted c. reflected d. reverberated ... (Read 183 times)

jon_i

  • Hero Member
  • *****
  • Posts: 549
An echo is a sound wave that has been
 a. diffracted
  b. refracted
  c. reflected
  d. reverberated
  e. amplified

Question 2

You see a lightning flash and half a second later hear a loud blast of thunder. How far away did the lightning hit?
 a. about a mile c. a tenth of a mile
  b. half a mile d. none of the above



meganlapinski

  • Sr. Member
  • ****
  • Posts: 333
Answer to Question 1

C

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

For a complete list of videos, visit our video library