Homework Answers
12. Q = A1 v1 = A2 v2
and A = pi D^2 / 4
(pi D1^2 / 4) v1 = (pi D2^2 / 4) v2
v1 / v2 = (D2/D1)^2 = (2/1)^2 = 4
so v2 = v1/ 4
Ans: (a) one-quarter
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Introduction
In this lab, you will be studying osmosis across the membrane of
potato cells. You will create equal-sized pieces of potato and then
place the pieces in solutions with differing concentrations. You
will then, over time, measure any changes that take place in the
size and weight of the potato pieces.
To measure changes in size, you will need either a gram scale
(like a food scale) or a millimetre ruler. It is best if you have...
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1) It is desined to step up a vollage of 120 V to 96,000 v. The turns ratio N/N, of the transformer a) I/28 b) (64 x 10y )28 d) 8001 if the voltage is stepped that power is not lost in an ideal transformer, consider the situation in the above question. 2) Starting from the idea t up 800 times, the current is a) the same, since power is the same...
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Case 27 To Use or Not to Use?
Beaufort Sea Production Company (BSPC) operates a medium-sized oil
field on Alaska’s north coast. The field is still producing at its
maximum rate, 325,000 barrels of oil per day (BOPD). However, to
sustain this rate the company started a waterflood of the reservoir
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salt water from the Beaufort Sea is treated to remove...
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The Joule () is the SI unit of energy. (J = kg:m? S2 A calorie is another unit of energy. The definition of a calorie is the amount of heat (energy) necessary to raise the temperature of Ig of water by 1° Celsius. Ig of water occupies 1 milliliter (ml) = 1 cubic centimeter (cm) of volume. lkcal=4186J Energy comes in many forms and energy may be converted...
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