The blower will run at full speed when ________ is applied to the motor

A) 12 volts B) 6 volts through a resistor
C) Resisted volts D) None of these


A

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A computer chip with a mass of 50 g, made of copper, experiences an electrical work input of 10-W. The chip is insulated. Initially, the chip has a temperature of 20oC. What is the temperature of the chip after one minute of operation?

Given: Cu; m = 50 g = 0.050 kg; W?= -10 W = -0.010 kW; T1 = 20oC; t = 1 min = 60 s Assume: Q = 0 (insulated); ?KE = ?PE = 0 What will be an ideal response?

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Prairie chickens require native prairie grasslands

a. True b. False Indicate whether the statement is true or false

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The ____________________ refers to the edge of the metal burned back slightly by the electrode just ahead of the molten weld pool.

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

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Hard spots in a brake drum are caused by ________

A) Machining a drum at too high a speed B) Excessive heat and pressure C) Improper mounting of the drum on the lathe D) Machining a drum without using a rubber belt to damper out the vibrations

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