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Author Question: Which of the following numbers has 4 significant figures; which has 5 significant figures? (a) 3001 ... (Read 107 times)

ishan

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on: Jul 29, 2018
Which of the following numbers has 4 significant figures; which has 5 significant figures? (a) 3001 (b) 0.00370 (c) 4774.00 (d) 29.290
 
  What will be an ideal response?

Question 2

A 10.0-g bouncy ball is confined in a 8.3-cm-long box (an infinite well).
 
  If we model the ball as a point particle, what is the minimum kinetic energy of the ball? (h = 6.626  10-34 J  s)
  A) 8.0  10-64 J
  B) 3.2  10-46 J
  C) 1.3  10-20 J
  D) zero


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xiaomengxian

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

(a) has 4 significant figures; (d) has 5 significant figures

Answer to Question 2

A


ishan

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Reply 2 on: Jul 29, 2018
Gracias!

sarah_brady415

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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