An experimental psychologist is designing an experiment to determine how a fast-food diet affects the moods of individuals. Which of the following groups would not be given a diet consisting only of fast-food? A. the test group B. the control group C. neither group D. both groups

Apair of 10μf capacitors in a high-power laser are charged to 1.7 kv. a. what charge is stored in each capacitor? b. how much energy is stored in each capacitor?

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s. part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.