Height of a cliff When a rock is dropped from a cliff into an ocean, it travels approximately 16t? feet in t seconds. If the splash is heard 4 seconds later and the speed of sound is 1100 ft/sec, approximate the height of the cliff.

What is 1550 dm expressed in hectometers

The loudness, L, of a sound (measured in decibels, dB) is inversely proportional to the square of the distance, d, from the source of the sound. For a person 7 feet from a sound source, suppose the loudness is 85 decibels. How loud is the sound source when the person is 46 feet away? (Round your answer to two decimal places if necessary). dB Question Help: D Post to forum Submit Question esc 仑 G Search or type URL @ $ % 1 2 3 4 5 6 Q W E R A S D F G ock