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Author Question: A cyclotron is designed with a magnet that produces 1.2 T. When refurbished, the magnet is replaced ... (Read 83 times)

TFauchery

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on: Jul 29, 2018
A cyclotron is designed with a magnet that produces 1.2 T. When refurbished, the magnet is replaced by one that produces 1.5 T. How does the kinetic energy developed by the protons change compared to the previous energy developed?
 
  A)
 
  It increases by 25.
  B)
 
  It decreases by 25.
  C)
 
  It increases by 56.
  D)
 
  It decreases by 56.
  E)
 
  It does not change.

Question 2

A person with normal eyesight uses a converging lens of focal length 10 cm. He holds the lens close to his eyes to finish an engraving job.
 
  (a) What is the magnifying power of the lens?
  (b) At what distance from the job he must hold the lens?


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juiceman1987

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

C

Answer to Question 2

(a) 3.5
(b) 7.1 cm


TFauchery

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

ricroger

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Reply 3 on: Yesterday
Excellent

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