Which of the following best represents the energy transformations ...

[natalie2426]

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.

[strudel15]

Answer to Question 1

A

Answer to Question 2

E

[natalie2426]

Thanks for the timely response, appreciate it

[lkanara2]

Excellent