Consider two balls of the same mass with radii of 0.1 m and 0.2 respectively. The centers of the
two balls are seperated by 2 m. The gravitational
force between them is 5x107 N.
What is their mass?

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)

Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.