Which of the following is the product of an object's weight times it speed?
A. Momentum
B. Dynamic inertia
C. Velocity
D. Acceleration
Answer: A
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Let V be the event that a computer contains a virus, and let W be the event that a computer contains a worm. Suppose P(V)=0.15, P(W)=0.05, and
a. Find the probability that the computer contains both a virus and a worm. b. Find the probability that the computer contains neither a virus nor a worm. c. Find the probability that the computer contains a virus but not a worm.
Why do heat pumps operate more efficiently than electric furnaces?
A) They use electricity to move heat rather than converting electricity directly to heat B) Heat pumps and electric furnaces actually operate at about the same efficiency C) Refrigerant has a natural affinity for heat D) Heat pumps use a more direct method of converting electrical energy to heat energy
Ringing voltage is comprised of a ________ frequency that rides on a(n) ________ AC signal
A) 20 Hz, 70 volt B) 20 Hz, 200 volt C) 10 Hz, 70 volt D) 40 Hz, 80 volt
Which of the following is good protocol for an interview?
A. Show up at least one hour prior to the interview. B. Rehearse answers to commonly asked interview questions. C. Conclude the interview on a positive note by asking if you will be hired. D. Try to overdress for the interview rather than risk looking unprofessional.