N 1 1) 1/3V900 = 1/3•30 = 10 2) 0,2V1600 = 0,2•40 = 8 3) 10 + 8 = 18 Ответ 18 N 2 1) 1/6•( V18 )^2 = 1/6 • 18 = 3 2) ( 1/2V24 )^2 = 1/4•24 = 6 3) 3 - 6 = - 3 Ответ ( - 3 )
1. 2.