Air is flowing straight toward a building. What expression would provide ?p/?x if x is measured perpendicular to the building? Neglect viscous and gravity effects and assume steady flow.
(A) ?p/?x = ?? (u?u/?x ? v?v/?y)
(B) ?p/?x = ?? u?u/?x
(C) ?p/?x = ?? v?u/?x
(D) ?p/?x = ?? (u?u/?x ? v?u/?y)
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A) carbonization. B) replacement. C) an impression. D) a cast.
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A) Make copies of its deoxyribonucleic acid B) Divide rapidly and uncontrollably C) Grow very large in size D) Produce antibiotics
A dense, hot body will give off a(n) ________ spectrum
Fill in the blank(s) with correct word
Pascal's Principle: A 12,000-N car is raised using a hydraulic lift, which consists of a U-tube with arms of unequal areas, filled with oil and capped at both ends with tight-fitting pistons. The wider arm of the U-tube has a radius of 18.0 cm and the narrower arm has a radius of 5.00 cm. The car rests on the piston on the wider arm of the U-tube. The pistons are initially at the same level. What is the initial force that must be applied to the smaller piston in order to start lifting the car? For purposes of this problem, neglect the weight of the pistons.
A. 727 N B. 926 N C. 2.90 kN D. 3.33 kN E. 1.20 kN