Asmall ball with charge q = 10.4 μc and mass m = 0.055 kg is suspended from the ceiling by a string of length l = 2 m and is initially at rest. a uniform horizontal electric field e of magnitude 500 v/m is applied to the ball-string system. the ball then begins to move. ignore air resistance.
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Physics, 22.06.2019 11:20, cjd1214812148
The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)
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Physics, 22.06.2019 17:20, lilzaya510
Properties seen when one one substance changes to another are known as properties
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Physics, 23.06.2019 02:20, MathWizz5104
Ahole in the ground in the shape of an inverted cone is 14 meters deep and has radius at the top of 11 meters. the cone is filled to the top with sawdust. the density of the sawdust depends upon the depth, x, following the formula ρ ( x ) = 2.5 + 1.2 e − 0.7 x kg/m3. find the total mass of sawdust in the conical hole.
Answers: 1
Asmall ball with charge q = 10.4 μc and mass m = 0.055 kg is suspended from the ceiling by a string...
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