What is the depth of the well
A student uses an audio oscillator of adjustable frequency to measure the depth of a water well. Two successive resonant frequencies are heard at 221 Hz and 247 Hz. The speed of sound in air is 344 m/s. What is the depth of the well?
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A child is sliding on a sled at 1.6 {rm m/s} to the right. You stop the sled by pushing on it for 0.80 {rm s} in a direction opposite to its motion.If the mass of the child and sled is 40 {rm kg}, what average force do you need to apply to stop th
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If a curve with a radius of 85 is perfectly banked for a car traveling 71 , what must be the coefficient of static friction for a car not to skid when traveling at 86 ?
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