A truck is traveling a certain speed. A car that is half the mass tracked at twice the speed as that truck. Which has more kinetic energy?

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

Arock collection comes from which part of earth?

If forces acting on an object are unbalanced. true or false