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Michel, luc, daniel, Henry, or whoever --
To quote one of our very good math and science tutors: “You will find here at Jiskha that long series of questions, posted with no evidence of effort or thought by the person posting, will not be answered. We will gladly respond to your future questions in which your thoughts are included.”
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Tell your friends daniel, luc and michel that the subject is spelled physics, not physic.
A "physic" is a laxative.
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A dynamite blast at a quarry launches a rock straight upward, and 1.6 s later it is rising at a rate of 12 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch and (b)5.3 s after launch.
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Two bodies of masses 0.8 kg and 1.2 kg are located at (1,-2) and (-3, 4), respectively. Find the co-ordinates of the ...
