If it takes 7 N to stretch a spring 8 cm and if the spring is then cut in half, what force does it take to stretch one of the halves 4 cm?

uranium fissions/breaks up giving out energy and neutrons

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

so easy. just google the electromagnetic waves and it’ll pop up.