Noah drops a rock with a density of 1.73 g/cm3 into a pond. Will the rock float or sink?

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In a mass spectrometer, a singly ionized 24Mg ion has a mass equal to 3.983 10-26 kg and is accelerated through a 2.00-kV potential difference. It then enters a region where it is deflected by a magnetic field of 537 G. a.

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The motor exerts a force of F = (20t2) N on the cable, where t is in seconds. Determine the speed of the 25-kg crate when t = 4 s. The coefficients of static and kinetic friction between the crate and the plane are ms = 0.3 and mk = 0.

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Two rocks (call them S and T) are released at the same time from the same height and start from rest. Rock S has 20 times the mass of rock T.

Noah drops a rock with a density of 1.73 g/cm3 into a pond. Will the rock float or sink?