Aship is sailing in dense fog and it could be close to dangerous cliffs. the captain switches on the fog horn. the horn sounds and the echo is heard 4 seconds later. the speed of sound in air is 340 m/s. calculate the distance between the ship and the cliff

he made 11 calls in one day

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

i would say