what’s the deadly illness striking everyone in this small town

Phenomenon: A deadly illness striking everyone in a small town. Theories: (1) Resurgence of smallpox, (2) poison in the drinking water, (3) a failure to think positively. 2. Phenomenon: A sudden and dramatic drop in the price of most corporate stocks. Theories: (1) Rumors of a recession, (2) manipulation of the stock market by one powerful stockholder, (3) particularly nasty weather on the East Coast. * 3. Phenomenon: Extraordinarily large humanlike footprints in the snow on a mountainside. Theories: (1) The legendary man-beast known as the Yeti, (2) falling rocks from the sky, (3) a very big human mountain climber. 4. Phenomenon: The construction of the Egyptian pyramids. Theories: (1) The work of clever Egyptian engineers and many slaves, (2) the work of Egyptians with the help of extraterrestrial beings, (3) the work not of the Egyptians but the ancient Romans. 5. Phenomenon: A large increase in the incidence of heart disease among middle-aged women. Theories: (1) The result of an increase in violence against women, (2) an increase in the amount of fat consumed by women over age forty-five, (3) an increase in the number of women who marry late in life. 6. Phenomenon: A peaceful march by hundreds of people in the streets of Washington, DC. Theories: (1) A group of activists protesting the killing of animals for food, (2) hundreds of people sleepwalking at the same time, (3) people going to a festival on the White House lawn.

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Determine the outlet concentration x1 in the water solution and in the trichloroethane solution using an analytical equation.

Predicting Extraction for an Existing Tower with a Given Number of Steps. An existing tower contains 5.0 theoretical steps. It is desired to predict its performance under the following conditions….

Calculate the minimum solvent that can be used. [Hint: In this case, the tie line through the feed L0 represents the condition for minimum solvent flow rate.

Minimum Solvent and Countercurrent Extraction of Acetone. An aqueous feed solution of 1000 kg/h containing 23.5 wt % acetone and 76.5 wt % water is being extracted in a countercurrent….

Determine the break-point time, the fraction of total capacity used up to the break point, the length of the unused bed, and the saturation loading capacity of the solid.

Drying of Nitrogen and Scale-Up of a Column. Using molecular sieves, water vapor was removed from nitrogen gas in a packed bed (C1) at 28.3°C. The column height was 0.268….