2.5 kg because you cant change the weight of the rock
Answer is B raindrops conduct electricity from clouds to the ground.
Lightning is formed when air, water droplets, and even ice crystals rub violently against each other inside a thundercloud, creating two opposite kinds of electrical charge
b is the answer i hope this helped...
Answer:’B’
Explanation:Since, the nucleus is in the middle and it carries protons which carry positive charge and neutrons which carry no charge.
KE = 1/2mv^2
KE= 1/2(2)(5)^2
KE= 25 J