Guinea pigs are popular as small pets because:
What will be an ideal response?
?? They are gentle and rarely bite.
?? They recognize their owners and respond vocally.
?? They are clean and have very little or no odor (if the cage is cleaned).
?? Housing requirements are minimal.
?? They are relatively easy to feed (pelleted foods and some leafy greens).
?? They are easy to handle.
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?When the SMAW-S process is properly tuned, what is the approximate rate of its cycling?
A. ?overshoot B. ?ramp up C. ?high pulse current D. ?20 to 200 times per second
If allowed to accumulate, dirt and grease on the top of the battery can form a ____ between the battery terminals.
A. short B. vapor condensation C. conductive path D. parasitic drain
Match the following letters with the term they represent in Ohm's law.
A. volts B. resistance C. current
Develop a Simulink simulator for the shunt-connected DC motor of Problem 19.28. Assume the following parameter values: La = 0.15 H; L f = 0.05 H; Ra = 1.8 ?; R f = 0.2?; ka = 0.8 V-s/rad; kT = 20 N-m/A; kf = 0.20 Wb/A; b = 0.1 N-m-s/rad; J = 1 kg-m2.
Find: Derive the differential equations describing the electrical and mechanical dynamics of the motor Draw a simulation block diagram of the system