A soldier fires a gun and another boy at a distance of 1020 m hears the sound of firing the gun 33 seconds after seeing its smoke. Find the speed of sound. .

Explanation:

The speed of the sound can be found using the following equation:

Where:

v: is the speed

d: is the distance = 1020 m

t: is the time = 33 s

Therefore, the speed of the sound is 30.91 m/s.

I hope it helps you!

an electric circuit

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.