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A falling sphere viscometer measures the viscosity of a liquid from the terminal velocity of a tiny, falling sphere. One such device determines that a tiny sphere of radius 35 ?m falls through a liquid with a terminal velocity of 8.7 mm/s. If the density of the sphere is 3628 kg/m3 and the density of the liquid is 663 kg/m3 what is the shear viscosity of the liquid?
An electric field of 220000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -10C at the spot.
A copper vat is 10-m long at room temperature (20°C). How much longer is it as it contains boiling water at 1 atm pressure.
Would a plucked guitar sting vibrate for a longer time or a shorter time if the instrument had no sounding board? explain.
A 10 kg runaway grocery cart runs into a spring with spring constant 240N/m and compresses it by 65cm. What was the speed of the cart just before it hit the spring.
A loop of diameter 15 cm is placed in a uniform electric field of magnitude 6.0 102 N/C. (a) What is the electric flux through the loop when the electric field is perpendicular to the plane of the loop? N·m2/C.
Write at least one paragraph in which you define focal length, object and image distance and magnification. Explain the difference between real and virtual images
If the electric field has a magnitude of 450 and the magnetic field has a magnitude of 0.19 , illustrate what speed must the particles have to pass through the selector undeflected?
A person swimming underwater sees a lifeguard who is standing in the shallow part of the pool; the water comes up to the lifeguard's waist. In what way does the swimmer see lifeguard's upper body distorted.
A 1.3-µF capacitor is connected to a 4.7-V battery. What is the magnitude of the charge on each plate?
Flying due east, the plane flies with the rotation of the Earth, while flying due west, it flies against the rotation. Will the flight times be the same? Different? Why?
A small piece of dust of mass m = 1.2 g travels horizontally through an electric air cleaner in which the electric field is 472 N/C, What is the charge of the dust particle
Does an apple tree exert a gravitational force on the earth and if so, how large of a force, Consider and explain this question when the apple is attached to the tree
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