What depth will give maximum cross sectional area
The rain gutter is to be made of rectangular aluminum sheets 12 inches wide by turning up sides edges 90 degrees. What depth (of edges) will give the maximum cross sectional area and thereby give for greatest flow of water?
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A capacitor of .22μF is charged by a 1.5 V Battery. After being charged, the capacitor is joined to a small electric motor. Supposing 100% efficiency, to what height can the motor elevate a mass of 5 g?
A satellite orbiting the moon much near the surface consists of a period of 110 min. Determine the acceleration of moon due to gravity?
A charge of +3.0 µC is at first 0.20 m from a fixed -6.0 µC charge and is then moved to a position 0.50 m from the fixed charge. (i) Determine how much work was needed to move the charge?
The person whose near-point distance is 39 cm wears a pair of glasses which are 2.0 cm from her eyes. With the help of these glasses, she can now focus on objects 25 cm away from the eyes. Determine the focal length and refractive power of the gla
The rain gutter is to be made of rectangular aluminum sheets 12 inches wide by turning up sides edges 90 degrees.
A platinum wire consists of 20Ω resistance at 20°C. The temperature coefficient of resistivity is 3.9 x 10^-3(degrees Celsius)^-1 . Determine the resistance in ohm at 100°C?
A hair dryer function at 1800 watts having terminal voltage of 120 volts. Find out the given: i) The resistance R of the hair dryer
If the solubility of the product and reactant were switched, how would you follow the isomerization process and how would you know when it was complete?
(i) When the box is being lifted at a constant speed of 2.0 m/s, determine the power delivered by the person pulling on the rope?
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