If the vector diagram of two AC waveforms is a right angle, then the waves _____.
a. are in phase
b. are 90° out of phase
c. have the same frequency
d. have the same peak voltage
b. are 90° out of phase
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Which of the following factors would NOT be included in physiological needs category?
a. Air b. Food c. Sex d. Shelter e. Positive self-image
A stock market analyst notices that in a certain year, the price of IBM stock increased on 131 out of 252 trading days. Can these data be used to find a 95% confidence interval for the proportion of days that IBM stock increases? Explain.
What will be an ideal response?
A hand operated parking brake lever is released by ________
A) Hydraulic pressure B) A vacuum servo C) An electric servo D) Pushing a spring-loaded button
A technician checks the resistance of the primary winding on a transformer and reads 0. 2 ohms. This tells the technician that:
A) The transformer should be rewired to use the secondary winding. B) The primary winding is shorted. C) The primary winding is open. D) The primary winding is good.