While attending a large fireworks event with music, you decide to stay 1 kilometer away because of the crowds. However you have a good view, and you can still hear the booms, as well as the music. Given a speed of sound on a warm moist summer night of 340 m/s, select those that apply. O The music is out of phase with the fireworks and occurs about 3 seconds late. O The booms are so loud they occur at the same time as the flash of fireworks explosion. O The music has the wrong pitch with its frequency changed by the time it takes to reach you. O The booms follow the flashes you see by about 3 seconds. O The music is out of phase with the fireworks and occurs about 6 seconds early

Two motors sitting near each other in a factory at slightly different rates. One runs at 805.0 rpm and the other at 775.0 rpm. You hear the combined sound intensity from the motors increase and then decrease periodically due to wave interference. What is the period of beats in seconds?

A short blast is emitted somewhere beteeen two reflecting cliffs. Two echos are heard, once at 0.6 sec and the next at 0.9 sec. Given the speed of sound is 330 m/s, how far apart are the reflecting cliffs?

Oil explorers often set off explosives to make loud sounds, then listen for the echoes from underground oil deposits. Geologists suspect that there is oil under 520-m-deep Lake Physics. It's known that Lake Physics rests on top of solid granite. The speed of sound in water is 1480 m/s and the speed of sound in granite is 6000 m/s.   a. If an explosion is created at the surface of the lake, what time after the explosion do the explorers expect to hear an echo from the bottom of the lake in seconds?   t=0.703s   b. In addition to the expected echo from the bottom of the lake, explorers also detect a faint echo 0.960 s after exploding the dynamite at the lake surface. If it's really oil, how deep will they have to drill through the granite to reach it in meters?

A sound pulse emitted underwater reflects off a school of fish and is detected at the same place 0.15 s later. How far away are the fish? (Assume the water temperature is 20°C.) m

Suppose you hear a clap of thunder 16.2 seconds after seeing the associated lightning stroke. The speed of the light is air is 300000000 m/s. How far are you from the lightning strike?

Cemile is flying a jet plane at Mach 2.5 at an altitude of 1500m. She flies past her students who are standing at ground level. How much time passes before the students hear the sonic boom after the plane flies directly overhead? Assume that the speed of sound in air is 330m/s.

While attending a large fireworks event with music, you decide to stay 1 kilometer away because of the crowds.  However you have a good view, and you can still hear the booms, as well as the music.   Given a speed of sound on a warm moist summer night of 340 m/s, select those that apply.     The music is out of phase with the fireworks and occurs about 3 seconds late.     The booms are so loud they occur at the same time as the flash of fireworks explosion.     The booms follow the flashes you see by about 3 seconds.     The music has the wrong pitch with its frequency changed by the time it takes to reach  you.     The music is out of phase with the fireworks and occurs about 6 seconds early   CAN BE MORE THAN ONE ANSWER

A driver of a truck parked on a mountain road gives the air horn a quick blast towards a cliff .50 km away. If he hears the echo 3.5s later what is the air temperature at this elevation?

A cannon fires a shell directly at you from 2000 m away, at a speed of 216 m/s. The speed of sound in the air is 346 m/a. If your eyes have been plucked out by an angry seagull, how long do you have to react after hearing the shot?