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Author Question: The x component of the velocity of an object vibrating along the x-axis obeys the equation vx(t) = ... (Read 155 times)

cool

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on: Jul 29, 2018
The x component of the velocity of an object vibrating along the x-axis obeys the equation vx(t) = (0.445 m/s) sin(25.4 rad/s)t + 0.223.
 
  (a) What is the amplitude of the motion of this object?
  (b) What is the maximum acceleration of the vibrating object?

Question 2

Suppose that in a certain collection of nuclei there were initially 1024 billion nuclei, and 20.0 minutes later there was only 1.00 billion nuclei left, the others having decayed.
 
  On the basis of this information, how many nuclei would you estimate decayed in the first 6.00 minutes?


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voltaire123

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

(a) 0.0175 m (b) 11.3 m/s2

Answer to Question 2

896 billion


cool

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Reply 2 on: Jul 29, 2018
Gracias!

parshano

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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