i need help please..?

Question

Calculate the kinetic energy of a hydrogen atom moving at a speed of 3055 m/s (In Joules)

Answer 1

kinetic energy of a moving object = .5(mass)(velocity^2).

first you would want to find the mass of a hydrogen atom. which is 1 amu. which is 1.66053886 × 10-27 kilograms. plug that into the equation and you get (1.66053886 × 10-27)(.5)(3055^2).

Answer 2

First you have to find the mass of the atom (in kg), in this case it's a lone proton, and then multiply by the squared speed.
K=mv²