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Author Question: Which of the following best represents the energy transformations in a coal-fired electric power ... (Read 85 times)

natalie2426

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on: Jul 29, 2018
Which of the following best represents the energy transformations in a coal-fired electric power plant?
 
  A) chemical  thermal  kinetic  electromagnetic
  B) radiant  kinetic  electromagnetic  thermal
  C) electromagnetic  thermal  kinetic
  D) gravitational  kinetic  electromagnetic
  E) chemical  kinetic  thermal  electromagnetic

Question 2

Radon has a 4-day half-life. Starting with 10 radon atoms, how many will remain after 4 days?
 
  A) Precisely five.
  B) Either four, or five, or six.
  C) Precisely zero.
  D) About 5, but this prediction is uncertain due to the inaccuracies of our measuring devices.
  E) About 5, but this prediction is uncertain due to quantum uncertainties.


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strudel15

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

A

Answer to Question 2

E


natalie2426

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

xiaomengxian

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

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