How much time passes before it hears an echo
A dolphin located in sea water at a temperature of 26C emits a sound directed toward the bottom of the ocean 157 m below. How much time passes before it hears an echo? Assume the the speed of sound in sea water is 1530 m/s at this temperature.
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Write a program that bounces a blue ball inside JPanel. The ball should begin moving with a mousePressed event. When the ball hits the edge of the JPanel, it should bounce off the edge and continue in the opposite direction. The ball should be update
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A mammal uses only 1 to 2 percent of its energy in ventilation while a fish must spend about 15 percent of its energy to move water over its gills. Explain this huge difference in their efforts to collect oxygen.
How much time passes before it hears an echo? Assume the the speed of sound in sea water is 1530 m/s at this temperature.
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