72 kg of air moves at a speed of 4.9 m/s. How much kinetic energy does this mass of air have??
Fill in the blank(s) with the appropriate word(s).
864.36 joules
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Power sources for Class 2 or Class 3 circuits may be derived from ________.
A. A listed or labeled Class 2 or Class 3 power supply or transformer B. Any inherently limited power supply C. Any power supply having a maximum output of 100VA D. Any power supply 150V or less
For a PV array, the ____________________ angle is the angle clockwise from true north that the PV array faces.
Fill in the blank(s) with the appropriate word(s).
Are beneficial insects like the honeybee and the butterfly immune to the
pesticides that are used to kill harmful insects? What do you think would happen if there were no butterflies or honeybees?
What will be an ideal response?The less difficult it is to enter the task environment of an industry, the higher are the barriers
to entry to this environment.
Indicate whether the statement is true or false.