Describe the differences you observed between the first sample of pond water
and the heat-treated sample. What happened to the microorganisms?
What will be an ideal response?
The movement of the organisms in the first sample should be much greater than
those in the heat-treated sample. The organisms and debris are present in the
treated sample, but they are no longer moving.
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If the maximum frequency present in an analog waveform fmax = 20kHz, the period of the sampling frequency Ts must be less than _______ µs.
Fill in the blank(s) with the appropriate word(s).
At the present time, organic farmers are not regulated by the USDA on how they grow crop
Indicate whether the statement is true or false
A(n) _____ is a collection of stories, announcements, and explanations that is sent on a regular basis to a particular group of people
a. newspaper b. newsletter c. magazine d. brochure
Servo valves use a(n) ____________________ to indirectly position the main spool and are used mainly for high-performance, closed-loop control of speed or position.
Fill in the blank(s) with the appropriate word(s).