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Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen
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Ways that industry and agriculture use physical properties to separate substances
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Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.
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Aprotein molecule in an electrophoresis gel has a negative charge.the exact charge depends on the ph of the solution, but 30 excesselectrons is typical. what is the magnitude of the electric forceon a protein with this charge in a 1500 n/c electric field?
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How does the dna differ for different living things...
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