How many excess electrons does oil drop have here
An oil drop whose mass is determined to be 3.3x10^-15 is held at rest between two large plates separated by 1cm when the potential difference between them is 340 V. How many excess electrons does this have here?
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A potter's wheel having a radius 0.54 m and a moment of inertia 11.7 kg·m2 is rotating freely at 48 rev/min. The potter can stop the wheel in 8.0 s by pressing a wet rag against the rim and exerting a radially inward force of 65 N. Find the
An airplane has a mass of 2.4e6 kg, and the air flows past the lower surface of the wings at 85 m/s. If the wings have a surface area of 1200 m2, how fast must the air flow over the upper surface of the wing if the plane is to stay in the air? Co
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An oil drop whose mass is determined to be 3.3x10^-15 is held at rest between two large plates separated by 1cm when the potential difference between them is 340 V.
the pendulum oscillates about the equilibrium position shown by the solid line, with D = 0.300 m. Calculate the magnitude of the plane's acceleration.
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At a point P a distance d from a point charge, the potential relative to infinity is V and the electric-field magnitude is E. If you now move to a point S at which the potential is 0.333 V, the electric-field magnitude at S will be?
Why might a physician perform a Gram stain on a sample from a sick patient before prescribing an antibiotic?
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