What is the kinetic energy of a 478 kg object that is moving with the speed of 15 m/s

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point

Each period of the periodic table ends with: 1. alkali metals such as na, k, li, and cs 2. period 7 elements 3. group viiia elements 4. the oxygen family 5. seven orbital shells