You hear a thunder 4 seconds after you see the lightening. How far away is the storm?

1372m

Explanation:

d (distance of the storm) =?

t (time) = 4secs

V (velocity of sound in air) = 343m/s

The distance can be obtained by the following equation:

Velocity = Distance /time

distance = Velocity x time

distance = 343 x 4

distance = 1372m

Therefore, the storm is 1372m away

може ли да зареждате повече информация, моля

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.