Pieces gain in the explosion
A 160g trick baseball is thrown at 75km/hr. It explodes in flight into two pieces, with a 38g piece continuing straight ahead at 86km/h. How much energy do the pieces gain in the explosion?
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"antiparallel sugar-phosphate backbones" in DNA.
Why did the eighteenth-century Parisian courtiers lose interest in portraits?
The magnetic force on the lower magnet is 3.47 times its weight. Find the magnitude of the force of the lower magnet on the upper magnet.
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A cardinal (Richmondena cardinalis) of mass 4.00×10-2kg and a baseball of mass 0.143kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p_c of momentum to the magnitude p_b of the baseball's momentum?
Explain at least two ways institutional, temporal, and historical contexts of forecasts affect their accuracy.
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