The rate at which a radioactive isotope<span> decays is measured in </span>half-life. The termhalf-life<span> is defined as the time it takes for one-</span>half<span> of the atoms of a radioactive material to disintegrate. </span>Half-lives<span> for various </span>radioisotopes<span> can range from a few microseconds to billions of years.</span>
Answer:
324795 C
252.637820565 N/C
Explanation:
= Permittivity of free space = 
R = Radius of Mars = 
A = Area = 
= Electric flux = 
Electric flux is given by
The charge is 324795 C
Electric field is given by
The electric field is 252.637820565 N/C
Surface charge density is given by
The surface charge density is
Answer:
Lightning strikes the empire state building at an average of about 23 times a year.
Explanation:
The Empire State Building is one of the tallest buildings in New York. Because of how high it stretches up into the sky, lightning strikes are quite common to it. This is because part of the building touches the clouds which are usually charged during thunder storms.
According to weather reports, and the Empire State Building website, lightning strikes the empire state building about 23 times a year on the average.
