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Mass is a measurement of User: There are approximately 6.5 billion people on Earth. If the average person has a mass of 65 kg, how much do all the people on Earth weigh all together?
Weegy: approximately 422,500,000,000 kg User: Which of the following statements is true? User: On Earth, an object that contains more matter than another will always have Weegy: On Earth, an object that contains more matter than another will always have B. more weight but not more mass. (More)
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Asked 5/14/2013 5:19:02 AM
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If the mass of a railroad car is doubled when the car is fully loaded, what effect will that have on the force needed to produce the same amount of acceleration on the car? A. The force will need to be halved. B. The force will need to be doubled. C. The force will remain the same as before. D. The amount of force needed will depend on the velocity of the railroad car.
Weegy: If the mass of a railroad car is doubled when the car is fully loaded, what effect will that have on the force needed to produce the same amount of acceleration on the car? The answer is; D. [ The amount of force needed will depend on the velocity of the railroad car. ] (More)
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Asked 5/15/2013 5:57:12 AM
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A 6 kg bowling ball is accelerated at a rate of 2.3 m/s² down the lane. How much force was necessary to produce this acceleration? A. 3.7 N B. 8.3 N C. 12.9 N D. 13.8 N
Weegy: f=6*2.3=12.9 was necessary to produce this acceleration. (More)
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Asked 5/15/2013 5:58:14 AM
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