Of course. There's nothing in any of the equations, formulas, properties,
or descriptions of the electric field that mentions anything about air.
Answer: The required distance is given by
Explanation: The sound intensity in dB is given by the formula
where 
is the hearing threshold in absolute units and 
is the absolute intensity of the sound which depends on the distance. In general, for two distances 
and 
we have that
Now let us take 
and let be the required distance. We have
Exponentiating these equations we obtain
Dividing them
Using the previously stated identity
Now if we use the given example where 
we have
111111111111111111111111111111111
Answer:
False only direction not weight.
Explanation:
Answer: conductors are substances that allow heat or electricity to pass through . It deals with only the flow of electrons.
Eg. water, copper wire, iron rod, some ceramic materials, metallic nail.
Insulators are materials that do not allow heat or electricity to pass through.
Eg. Book, plastic, rubber, glass, paper
Explanation:
