Calculate the speed at launch
A dynamite blast at a quarry launches a rock straight upward, and 1.6 s later it is rising at a rate of 20 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch and (b)4.5 s after launch.
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In our readings, we learn more about the nature versus nurture argument. For this discussion, I want you to go in depth a bit more and debate the importance
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