What is the electrostatic force between 2 protons in a nucleus if they are separated by a distance of 8*10-18 m ??

Ahowler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 4.6 km. assume the acoustic output of a howler to be uniform in all directions and that the threshold of hearing is 1.0 × 10-12 w/m2. what is the acoustic power emitted by the howler

What are the dimensions of the cross section that passes through the points a, f, g, and d?

The process of a material going through a change of state from a gas to a liquid