The speed of a sound wave in sea water is 1500 m/s. A ship with a sonar system sends out a sonar signal. The echo from the sea floor is received after
6 s. If the frequency of the wave is 440 Hz, calculate:
1.The depth of the sea
2.wavelength of the wave
3.period of wave

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Which model displays the change in a gas when the temperature of the gaseous system decreases?

Pressure is a measure of force per unit area or p=f/ap=f/a. a student is checking the amount of pressure their car exerts upon the road. the car weighs 22 tons ( us short ton ). the student finds the dimensions of each tire's footprint on the road is 12.5 cm x 16.5 cm. in pounds per square inch (psi), what is the total pressure the car exerts upon the road?

There is no gravity in outer space . explain why this statement is true or false