Author Question: The critical angle for a substance in air is measured at 53.7. If light enters this substance from ... (Read 110 times)

brutforce

  • Hero Member
  • *****
  • Posts: 540
The critical angle for a substance in air is measured at 53.7. If light enters this substance from air at 45.0 with the normal, at what angle with the normal will it continue to travel?
 
  A) 34.7 B) 53.7
  C) 45.0 D) It will not continue, but will be totally reflected.

Question 2

The International Space Station is orbiting at an altitude of about 370 km above the earth's surface. The mass of the earth is 5.97  1024 kg, the radius of the earth is 6.38  106 m, and G = 6.67  10-11 N  m2/kg2. Assume a circular orbit.
 
  (a) What is the period of the International Space Station's orbit? (b) What is the speed of the International Space Station in its orbit?



TheNamesImani

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

A

Answer to Question 2

(a) 5.5 103 s (b) 7.7 103 m/s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

brutforce

  • Hero Member
  • *****
  • Posts: 540
Both answers were spot on, thank you once again




 

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Medication errors are three times higher among children and infants than with adults.

For a complete list of videos, visit our video library