An electron is located 4.22 mm away from an isolated proton. If the distance between the two particles is increased to 8.44 mm, what
happens to the electrical potential energy of the electron and why?

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?

What is a costume plot? why is it important to a film or theater production?

Decreased sensitivity to an unchanging stimulus is known as