Determine cost of cleaning impurities from water supply
The cost in million of dollars for city to clean p% of impurities from its water supply is provided by C= 325/100-p, where p is greater than zero and less than 100, determine cost of cleaning 90% of impurities from water supply.
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The wire carries a current 10 A in a direction which makes an angle 30 deg. with the direction of a magnetic field of strength 0.3 T. Determine the magnetic force on a 5m length of the wire.
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If the string is pulled in the right direction on a window shade, a lever is released and the shaft that the window shade is wound around spins. When the angular acceleration of a 4.1 cm wide shaft is 4.2 rad/s2, at what rate does the shade accele
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Determine the numbers of photons at the 660 nm must be absorbed to melt the 4.0 x102 g office? (Hint: It takes 334 J to melt 1 g of ice at 0°C.)
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