At room temperature, sound travels at a speed of about 344 m/s in air. you see a distant flash of lightning and hear the thunder arrive 8.0 seconds later.
part a) how many miles away was the lightning strike? (assume the light takes essentially no time to reach you.)

0.854miles away

Explanation:

The relationship between the speed of the sound (v), the distance between the sound of thunder and the reflector (x) and the time (t) can be expressed as 2x = vt

Given the speed of sound = 344m/s

time = 8.0s

x = ?

Substituting this values into the formula to get x, we have;

2x = 344(8)

x = 344×8/2

x = 1376m

Converting this distance to miles

0.000621miles = 1m

x = 1376m

x = 1376×0.000621

x = 0.854miles

The lightening strikes 0.854miles away.

e) none of the above answers are correct

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.