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Question
What is the kinetic energy of a 2000-lb car traveling at 48miles per hour? (1lb=0.4536kg, 1mi=1.609 km)
A) 2.1 x 10-7J
B) 1.0 x 106J
C) 3.5 x 1019J
D) 2.1 x 105J
E) 3.1 x 10-8J
Answer
This answer is hidden. It contains 1 characters.
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Q:
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Q:
For a certain first-order reaction with the general form aA → products, the rate is 0.32 M·s-1 when the concentration of the reactant is 0.29M. What is the rate constant for this reaction?A) 0.26 s-1B) 1.1 s-1C) 0.32 s-1D) 3.1 s-1E) 3.8 s-1