1 10 L O G O 2
340 2 λ = 3 = 17. 10 = 17. 20 10
g g 2 1 M 2 r1 = ( ) M r 1 2 2 M 2 r1 2 1 2 g2 g1 g1 g1 M r 81 3 7 1 = ( ) = (. ) 6 1 2 1 6
F = f m M 2 ( 1) r F mg f m M 1 1 = 1 = 2 ( 2) R1 F mg f m M 2 2 = 2 = 2 ( 3) r2 g2 M 2 r1 2 = ( ) g M r 1 1 1 M 2 r1 1 = 320 = M r 11 g2 2 = 320( 1 ) = 2. 65 g 11 1 2 2
h = 1 gt 2 2 10
F = mgsinθ µ mg cos θ F a = m = g sinθ µ g cosθ 2s 2s t = = a g sinθ µ g cosθ
1 2 H h1 = gt 2 1 2 H = g( t + 1) 2 1 2 H = h1 + gt 2 1 2 1 2 h 1 + gt = g( t + 1) 2 2 h1 1 72 1 t = = = 6. 85( ) g 2 9. 8 2 1 2 H = 9. 8 7. 85 = 302( ) 2
P1V1 = T 1 P V T 2 2 2 1 2 V V P 1 P2 1 = 2, =, T T 1 2
R R 0 = 16 t = 2830 2 U P R U 2 2 220 = = = = 1210Ω R P 40
2 1 v 1 = 10( 1 2 2 ) c 1 = 1 1-0.9 2 = 70 0 1