The answer is B.
More mass means more gravitational force.
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<span>Darlene jumps into a swimming pool. She is creating "Impact Waves." Impact waves are also referred as shock waves. It is a large-amplitude wave formed </span><span>by the sudden compression of the medium through which the </span>wave<span> moves.</span>
Answer choice C is a benefit of coal; all the others are negatives.
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It was <em>(1/2) (Net force on the cart) m/s²) </em>.