« previous next »

Author Question: The critical angle for a substance in air is measured at 53.7. If light enters this substance from ... (Read 82 times)

brutforce

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
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
Reply #1 on: Jul 29, 2018
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
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


TheNamesImani

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Vertical structuring of the oceans is associated with substantial variation in light and temperature Vertical structuring of the oceans is associated with substantial variation in light and temperature
Supernova Light Curves Supernova Light Curves
effect of light on plant effect of light on plant
The biochemical reactions of near-infrared light The biochemical reactions of near-infrared light
Interactions of Light and Matter Interactions of Light and Matter
Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ... Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ...
Video: Hershey Chase Experiments

For a complete list of videos, visit our video library