Physics, 18.02.2020 02:33 soccerjessie8701
4 point charges of 50 [nC] each are located at the four corners of a square lying in the x-y plane and centered on the origin (0, 0, 0) in free space. The diagonals of the square are of length 2 m and lies along the x and y axes. (a) Calculate the total force F on each of the charges by the other three charges, (b) What is the electric potential at the center of the square due to all four charges. (c) What is the electric field intensity at the center of the square due to all four charges.
Answers: 1
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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 13:00
Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
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4 point charges of 50 [nC] each are located at the four corners of a square lying in the x-y plane a...
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