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How much force must a locomotive exert on a 12840-kg boxcar to make it accelerate forward at 0.490 m/s2?
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Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?
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An object has a weight of 500 on earth what is the mass of this object
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Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.
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A boy applies a 25 N force to a 2 kg toy car. What is the toy car's acceleration?...
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