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Author Question: In this figure a light ray travels between air and glass. Which way did the light ray go? ... (Read 76 times)

JMatthes

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on: Jul 28, 2018

In this figure a light ray travels between air and glass. Which way did the light ray go?
   


 
   
  a.
  from the air into the glass
   
  b.
  from the glass into the air
   
  c.
  either A or B.
   
  d.
  None of the abovethis depicts an impossible situation.

Question 2

A 0.20-km wide river has a uniform flow speed of 4.0 m/s toward the east. It takes 20 s for a boat to cross the river to a point directly north of its departure point on the south bank. In what direction must the boat be pointed in order to accomplish this?
 a. 23 west of north
  b. 20 west of north
  c. 24 west of north
  d. 22 west of north
  e. 17 west of north


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ecox1012

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Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

d


JMatthes

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Reply 2 on: Jul 28, 2018
:D TYSM

Chelseyj.hasty

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Reply 3 on: Yesterday
Wow, this really help

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