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Author Question: The principal axis is the A) straight line drawn from the center of curvature to the mid point of ... (Read 50 times)

V@ndy87

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on: Jul 29, 2018
The principal axis is the
 
  A) straight line drawn from the center of curvature to the mid point of the mirror.
  B) straight line drawn from the center of curvature to any point of the mirror.
  C) straight line drawn from the center of curvature to a point on the outer edge of the mirror.
  D) straight line joining any two points on the mirror.
  E) None of the other answers given is correct.

Question 2

Salt water has greater density than fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force greater on the boat?
 
  A) salt water
  B) fresh water
  C) Buoyant force is the same in both.
  D) Cannot be determined from the information given.


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AmberC1996

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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


V@ndy87

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Reply 2 on: Jul 29, 2018
Wow, this really help

jordangronback

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Reply 3 on: Yesterday
:D TYSM

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