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Author Question: During a reaction, an element loses 4.8 10-28 kg of mass. How much energy (in Joules) is released? ... (Read 137 times)

clmills979

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on: Jul 27, 2018
During a reaction, an element loses 4.8  10-28 kg of mass. How much energy (in Joules) is released?
 
  A) 4.3  10-11 J
  B) 1.4  10-19 J
  C) 1.6  10-36 J
  D) 2.1  10-40 J
  E) 5.3  10-45 J

Question 2

A wheel of moment of inertia of 5.00 kg-m2 starts from rest and accelerates under a constant torque of 3.00 N-m for 8.00 s. What is the wheel's rotational kinetic energy at the end of 8.00 s?
 
  A) 57.6 J
  B) 122.0 J
  C) 91.9 J
  D) 64.0 J
  E) 78.8 J


tdewitt

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


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