13.772 billions years old
I hope this did help.
Need more details, theres no picture or anything.
Answer:
Magnetic field,
Explanation:
Given that,
Charge, q = 15 C
Time taken, 
Distance from the blot, d = 23 m
Let I is the current. It is equal to the charge per unit time. It can be calculated as :


I = 10000 A
The magnetic field at a distance d from the bolt is given by :



So, the magnetic field at a distance of 23 m from the bolt is
. Hence, this is the required solution.
The answers B because your doing m/s
Answer:
-6.8ev
Explanation:
the solutions i cant type here