a hemispherical bowl of radius 0.5 m is filled with water of density 997 kg/m^3. calculated the force exerted by the bowl. ans: 3840 N
Hi guyys, could you help me with this question. The center of a circular floodgate of radius 0.5 m is located in a dam at a depth of 2 m beneath the free surface of the water contained by the dam. Calculate the force exerted by the water on the floodgate. The density of water ...
At a certain time of the day a post, 4m tall, casts a shadow of 1.8m. What is the angle of elevation of the sun at that time?
John takes 2 hours longer than Andrew to peel 400 pounds of apples. If together they can peel 400 pounds of apples in 7 hours, then how long would it take Andrew to peal the apples working alone? Please round your answer to three decimal places.
Debbie traveled by boat 5 miles upstream to fish in her favorite spot. Because of the 6-mph current, it took her 20 minutes longer to get there than to return. How fast will her boat go in still water? (Please round your answer to one decimal place.)
Steve's boat will go 14 miles per hour in still water. If he can go 13 miles downstream in the same amount of time as it takes to go 10 miles upstream, then what is the speed of the current? (Please round your answer to one decimal place.)
6/(a^(2)+a-6) = 4/(a^(2)-9)
12/x + 3/(x-3) = x/(x-3) - 1/11
(b+27)/(b^(2)-1) - 1/(b+1) = (b-2)/(b-1)
5x/(x-4) = x + 20/(x-4)
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