A signal x [n] is formed by sampling a signal x(t) = ?4 sin (200?t) at a sampling rate of 400 samples/second. Graph x[n] over 10 periods versus discrete time. Then do the same for sampling frequencies of 200 samples/second and 60 samples/second.
What will be an ideal response?
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Which of the following is a reason to be concerned about nitrogen and oxygen?
A) is not toxic at low levels B) is thought to contribute to the greenhouse effect in the atmosphere C) can combine with other gases to form particulates D) ?they occur naturally
Milking machine systems are designed to assure that the teats of the cow are subjected to:
A. constant partial pressure (continual milk phase) B. constant partial vacuum (continual milk phase) C. intermittent partial vacuum and atmospheric pressure (milk phase—rest phase)
For the cantilever beam relationship given in Problem 6.21, if the units of y, w, E, x, and L are expressed in inches, lbf/in, lbf/in2, inches, and inches, respectively, what are the appropriate units for I?
What will be an ideal response?
Draw a level control loop.
What will be an ideal response?