Ann has a rectangular potato patch 50 feet wide and 130 feet long. The potatoes are planted 9 inches apart in 30-inch rows. She had a 92 percent stand with an average of 4.2 marketable potatoes per hill weighing 0.75 pound per potato.
a. How many rows are in the patch running the length of the patch?
b. How many potato hills are in the patch?
c. How many marketable potatoes were harvested? Express your
answer in scientific notation with one decimal place.
d. How many tons of marketable potatoes were produced?
a. 20 rows
b. 3,189 hills
c. 1.3 ×
potatoes
d. 4.9 tons
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Two streams of water flow into a tank, one at 80ºC flowing with a rate of 2 kg/s and the other at 50ºC flowing with a rate of 4 kg/s. All flows are at the same pressure. The tank is insulated, there is one outlet and the temperature and volume of water in the tank remain constant. The entropy generated is nearest:
A) 0.165 kJ/Ks?s B) 0.225 kJ/Ks?s C) 0.375 kJ/Ks?s D) 0.415 kJ/Ks?s
Identify the dependent variable
What will be an ideal response?
What can cause high condensing temperatures?
a. Low condenser air flow b. Overcharge of refrigerant c. Non-condensables in the system d. All of the above
The ____ can tell the control circuit whether a liquid is at a certain level or not.
a. bounce switch b. floor switch c. toggle switch d. float switch