The circuit in Fig. 7.150 is used by a biology student to study “frog kick.” She noticed that the frog kicked a little when the switch was closed but kicked violently for 5 s when the switch was opened. Model the frog as a resistor and calculate its resistance. Assume that it takes 10 mA for the frog to kick violently.


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A premature foal arrives before 350 days of gestation.

Answer the following statement true (T) or false (F)

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. A(n) ____________________ is a drill that is hardened for use in metal

Fill in the blank(s) with the appropriate word(s).

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A lamp that produces light as a result of current passing through a resistive filament is using ____.

A. high-intensity discharge lighting B. resistive lighting C. incandescent lighting D. fluorescent lighting

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The PLD being programmed is typically called a ________

Fill in the blank(s) with correct word

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