11. Second Army was formed on 5 August 1914 under the command of Central Force . 12. His command has also been referred to as the Central Command and Central Forces . 13. As we all know, gravity is a central force , therefore angular momentum remains constant. 14. Therefore, a central force must have the mathematical form 15. He served in World War I as General Officer Commanding-in-Chief for 2nd Army, Central Force . 16. Wherever they could, they sought to engage the Central forces in delaying or exhaustive skirmishes. 17. The Laplace Runge Lenz vector "'A "'is conserved only for a perfect inverse-square central force . 18. Do you mean that " some " other central forces also admit analogous conserved quantities? 19. The police force of the Netherlands is divided into 25 regional forces and one central force . 20. Not all central force fields are spherically symmetric.
