Andy age 16 lacks self-discipline fails to plan ahead and, Ask an Expert

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Q. Two identical flutes produce fundamental notes of frequency 300Hz at 27 degrees. If the temperature of the air in one flute is increased to 31 degrees, what will be the number of beats heard per second?

Q. Andy, age 16, lacks self-discipline, fails to plan ahead, and is rapidly frustrated by challenging tasks. He is nervous and overly critical of others. Make use of the psychoanalytic, humanistic and social-cognitive perspectives to give three contrasting explanations of Andy's behaviour.

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