The mass of the moon is 7.36×1022kg and its distance to the earth is 3.84×108m. what is the gravitational force of the moon on the earth?

Write the equation for momentum, first using symbols for the variables, then using words for the variables.

It is may 5 and you are somewhere in the northern hemisphere. if you determine that the noon sun is 51 degrees above your southern horizon, what is the latitude of your location

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?