A car's efficiency is usually around 13% so how much input work would have to be added to the system to produce 84.5 joules of output force? Please show work if possible!

If the moon has a diameter of 2,159.14 miles, what is the maximum distance that it could be observed by the naked eye with enough detail that you could distinguish it from other celestial bodies (assuming that you have 20/20 vision)

What type of nuclear decay causes the atomic number of an element to increase by 1?

Which notation is used to represent an alpha particle? a. b. c. d.