When was the term “agribusiness” introduced?
a. In the Middle Ages
b. In the later 1800s, after the Civil War
c. During the Great Depression (1930s)
d. In the 1950s, just after the Korean War
e. In the late 1980s, after personal computers became common
D
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In 1957, the solid-state inverter became practicable with the introduction of the ____.
a. thyristor b. rectifier c. bridge rectifier d. diode
The sides of a regular heptagonare equal. If the length of each side is expressed as 4.2H + 2, what is the perimeter of the heptagon in terms of H.
What will be an ideal response?
A defective taillight or front park light bulb could cause _______
A) The turn signal indicator on the dash to light when the lights are turned on B) The lights-on chime to sound if the brake pedal is depressed C) The dash lights to come on when the brake lights are on D) All of the above
A transducer is modeled with a current source Is and a parallel resistance Rs. The current at the terminals of the source is measured to be 9.975 mA when an ammeter with an internal resistance of 20 ? is used.
(a) If adding a 2-k? resistor across the source terminals causes the ammeter reading to fall to 9.876 mA, calculate Is and Rs. (b) What will the ammeter reading be if the resistance between the source terminals is changed to 4 k??