Light shelves are often used in combination with ________
A) Transom windows B) Solar panels
C) Light tubes D) Exterior ventilation systems
A
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In research, the genetic differences of study animals is usually controlled by:
a. choosing animals that look alike b. using a large number of animals c. restricting the number of control groups d. increasing the number of study trials
The term ____________________ refers to a male sex hormone, such as testosterone
Fill in the blank(s) with correct word
Templates can be time-consuming and create stiff, mechanical looking letters, lacking interest
Indicate whether the statement is true or false
Liquid ethanol is a flammable fluid and can release vapors that form explosive mixtures at temperatures above its flash point at 16.6°C. In a chemical plant, liquid ethanol (cp = 2.44 kJ/kg•K,?? = 789 kg/ m3) is being transported in a pipe with an inside diameter of 5 cm. The pipe is located in a hot area with the presence of an ignition source, where an estimated 20 kW of heat is added to the ethanol. Your task as an engineer is to design a pumping system to transport the ethanol safely and to prevent fire hazard. If the inlet temperature of the ethanol is 10°C, determine the volume flow rate that is necessary to keep the temperature of the ethanol in the pipe below its flash point.
