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Author Question: Amino acids are organic molecules that contain? (a)Protein (b)Amino group + carboxyl group ... (Read 169 times)

ec501234

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on: Jul 28, 2018
Amino acids are organic molecules that contain?
   
  (a)Protein
  (b)Amino group + carboxyl group
  (c)Carbohydrates
  (d)Ethylene + polyethylene
  <-- if ppt--><--endif-->

Question 2

At the instant a 2.0-kg particle has a velocity of 4.0 m/s in the positive x direction, a 3.0-kg particle has a velocity of 5.0 m/s in the positive y direction. What is the speed of the center of mass of the two-particle system?
 a. 3.8 m/s
  b. 3.4 m/s
  c. 5.0 m/s
  d. 4.4 m/s
  e. 4.6 m/s


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blakeserpa

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Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

b


ec501234

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Reply 2 on: Jul 28, 2018
Excellent

triiciiaa

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Reply 3 on: Yesterday
Wow, this really help

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