Question

A person observes a firework display for A safe distance of .750 km. Assuming that sound travels at 340 m/s in air what is the time between the person see and hear a firework explosion

Answer 1

t = 2.2 s

Step-by-step explanation:

Given that,

A person observes a firework display for A safe distance of 0.750 km.

d = 750 m

The speed of sound in air, v = 340 m/s

We need to find the between the person see and hear a firework explosion. let it is t. So, using the formula of speed.

`v=(d)/(t)\\\\t=(d)/(v)\\\\t=(750\ m)/(340\ m/s)\\\\t=2.2\ s`

So, the required time is 2.2 seconds.