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Consider a 672 N weight held by two cables. The left-hand cable had tension T2 and makes an angle of θ2 with the ceiling. The right-hand cable had tension 400 N and makes an angle of 35? with the ceiling. The right-hand cable makes an angle of 35? with the ceiling and has a tension of 400 N.
a) What is the tension T2 in the left-hand cable slanted at an angle of θ2 with respect to the wall?
Answer in units of N. b) What is the angle θ2 which the left-hand cable makes with respect to the ceiling?
Two loudspeakers are placed at either end of a gymnasium, both pointing towards each other. The sound emitted by the speakers is in phase and are of frequency of 256 Hz.
One day when you come into physics lab you find several plastic hemispheres floating like boats in a tank of fresh water. Each lab group is challenged to determine the heaviest rock that can be placed in the bottom of a plastic boat without sinkin..
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You are trying to overhear a juicy conversation, but from your distance of 15m. It sounds like only an average whisper of 20 dB. So you decide to move closer to give the conversation a sound level of 60 dB instead. How close must you come.
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