A dolphin in 25 degrees c sea water emits a sound directed
A dolphin in 25 degrees C sea water emits a sound directed toward the bottom of the ocean 213 m below. How much time passes before it hears an echo? The speed of sound in sea water is 1530 m/s.
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a 450 kg penguin runs onto a huge horizontal sheet of frictionless ice the sheet lies on the xy-plane at t 0 s it is
a student drops two metallic objects into a 120 g steel container holding 150 g of water at 25degc one object is a200 g
a harmonic wave is traveling along a rope the oscillator that generates the wave completes 410 vibrations in 251 s a
a skier travels down the trail the slope is inclined at an angle of 22 degree and the coefficient of kinetic friction
a dolphin in 25 degrees c sea water emits a sound directed toward the bottom of the ocean 213 m below how much time
an aluminium cup contains 225 g of water and a 40 g copper stirrer all at 27degc a 400 g sample of silver at an initial
an unknown substance has a mass of 0125 kg and an initial temperature of 994degc the substance is then dropped into a
a car is driven 215 kilometer west and then 85 kilometer southwest determine the displacement of the car from the point
on planet tehar the free-fall acceleration is the same as that on earth however there is also a strong downward
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