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

Author Question: Glass panes are opaque to a certain type of radiation, which can cause sunburn. What type of ... (Read 27 times)

sc00by25

  • Hero Member
  • *****
  • Posts: 596
on: Jul 28, 2018
Glass panes are opaque to a certain type of radiation, which can cause sunburn. What type of radiation is it? This radiation is important in ozone layer reactions.
 a. gamma
  c. X-ray
  b. ultraviolet
  d. microwave

Question 2

You stand by the railroad tracks as a train passes by. You hear a 950-Hz frequency when the train approaches, which changes to 820 Hz as it goes away. How fast is the train moving? The speed of sound in air is 340 m/s.
 a. 14.0 m/s
  c. 25.0 m/s
  b. 20.0 m/s
  d. 37.8 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ErinKing

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

C


sc00by25

  • Member
  • Posts: 596
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

CAPTAINAMERICA

  • Member
  • Posts: 325
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Transparent glass frog Transparent glass frog
Radiation Side Effects, Healing Time, and Intervention Radiation Side Effects, Healing Time, and Intervention
A severe case of delayed contact dermatitis (Type IV hypersensitivity) from wearing latex gloves. A severe case of delayed contact dermatitis (Type IV hypersensitivity) from wearing latex gloves.
Induration measurement in a tuberculin skin test, a type IV hypersensitivity. Induration measurement in a tuberculin skin test, a type IV hypersensitivity.
By age 45 or 50, nearly everyone needs glass especially for reading By age 45 or 50, nearly everyone needs glass especially for reading
Induction of a thymine dimer by UV radiation, leading to distortion of the DNA Induction of a thymine dimer by UV radiation, leading to distortion of the DNA
Video: Genetic distance between human groups

For a complete list of videos, visit our video library