Find the fluid force exerted against the vertically submerged flat surface depicted in the diagram. Assume arbitrary units, and call the weight-density of the fluid w.
A. 96w
B. 192w
C. 128w
D. 256w
Answer: B
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Find the center of mass of a thin plate of constant density covering the given region.The region enclosed by the parabolas y = - x2 + 32 and y = x2
A. 
= 0, 
= 16
B. 
= 0, 
= 
C. 
= 16, 
= 0
D. 
= 0, 
= 32
Solve.As part of a charity bike-a-thon, friends have pledged Randall certain amounts of money per each mile that he bikes. To estimate how much money he will earn for the charity, he uses the formula 
where A is the amount in dollars of pledges earned and m is the number of miles Randall rides. Graph the equation for m = 0, 20, 40, and 60.
A. 
B. 
C. 
D. 
Add.(6 + 9n5 + 3n3) + (7n5 + 6n3 + 7)
A. 16n5 + 9n3 + 13 B. 16 + 9n5 + 13n3 C. 13n5 + 15n3 + 10 D. 38n8
Use the compound interest formulas A = P
nt and A = Pert to solve.Suppose that you have $3000 to invest. Which investment yields the greater return over 5 years: 7.2% compounded monthly or 7.3% compounded quarterly?
A. $3000 invested at 7.2% compounded monthly over 5 years yields the greater return. B. Both investment plans yield the same return. C. $3000 invested at 7.3% compounded quarterly over 5 years yields the greater return.