Air with density of 0.45 kg/m^3 enters an experimental jet engine at rate of 180 m/s. The inlet area of the engine is 5.0 ft2. After fuel is burned, the air and combustion byproducts leave the engine with a velocity of 650 m/s through and outlet area of 4.0 ft2. What is the average density of the gas exiting the engine? Express your answer in kg/m^3, slugs/ft^3, and lbm/ft^3.
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Answer the following statement(s) true (T) or false (F)
1. When two animals are close in weight and one is older than the other, the younger is the faster growing. 2. For the most accurate readings, newly born animals should be weighed 1 week after birth. 3. Birth weight is an early indicator of an animal’s growth ability. 4. Low birth weights are most desirable so mothers have less difficulty giving birth. 5. A comparison based strictly on actual weaning weight is a good indication of a lamb’s genetic makeup.
Two heating elements should be connected in series if you want them to split the amount of voltage applied to them
Indicate whether the statement is true or false
A basic comparator can be implemented using ________
A) XNOR gates B) NOR gates C) NAND gates D) XOR gates
When a split-phase motor is starting, both the start and run windings must be energized.
Answer the following statement true (T) or false (F)