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. 
w
B. 125w
C. 
w
D. 
w
Answer: A
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Indicate whether the equation illustrates the commutative property of addition, commutative property of multiplication, associative property of addition, associative property of multiplication, or the distributive property.2x2 + 20 + 2x = 2x2 + 2x + 20
A. Associative property of addition B. Commutative property of addition C. Associative property of multiplication D. Commutative property of multiplication
For the curve r(t), find an equation for the indicated plane at the given value of t.r(t) = (cosh t)i + (sinh t)j + tk; rectifying plane at t = 0.
A. x = 1 B. x - y = 1 C. x - y = -1 D. x = -1
Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression.(1 + cot ?)(1 - cot ?) - csc2 ?
A. 0 B. -2 cot2 ? C. 2 cot2 ? D. 2
Simplify.(x9y)3
A. x12y4 B. x12y C. x27y D. x27y3