Which of the following contains a disulfide bond?
A) alanine
B) cysteine
C) cystine
D) methionine
C
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A shopping cart's change in momentum is equal to the
A. force applied to it. B. impulse applied to it. C. change in its velocity. D. cart's mass multiplied by the force acting on it.
Soil creep can be accelerated by freezing and thawing
a. True b. False
The MOST popular form of diving is:
A) scuba diving. B) saturation diving. C) breath-hold diving. D) surface-tended diving
Which of the following best defines energy efficiency?
A. the minimum standard for new appliances. B. measures how much of the original energy goes to its intended purpose. C. compares the amount of fossil fuel to renewable energy usage. D. the goal for modern society as we transition away from our dependence on fossil fuels. E. measures the reduction in energy usage for a given application.