a wheel initially has an angular velocity of 18 radian per second but it is Slowly at the rate of the 2 Radian per second square if it is stop in the 3 second it will have turned thr
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