2023年广东省佛山市顺德区&高明区·中考二模·【5月】物理·答案

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2026-03-04 11:20 | 0 | 0 | 页数: 2 | 大小: 377 KB

7 3 2 1 3 0 1 2 3 4 5 6 7 A B B D C C B 7 1 2 1 8 . 9 . 1 0 . 1 1 . 4 8 1 2 . 1 3 . < < 1 1 4 . 6 2 4 7 1 5 1 5 - 1 1 5 - 2 1 5 - 3 1 5 - 1 1 1 2 . 1 5 - 2 S 1 1 2 . 1 5 - 3 1 R 1 R 3 1 1 3 1 3 1 2 0 1 6 . 1 1 . 2 0 1 . 1 9 ~ 1 . 2 1 6 2 5 . 8 2 N 3 > 1 7 . 1 2 3 0 3 4 1 8 . 1 2 3 V 3 2 . 2 A 4 1 0 5 8 0 0 1 9 6 2 0 7 1 3 1 9 1 G = m g = 1 . 5 × 1 0 4 k g × 1 0 N / k g = 1 . 5 × 1 0 5 N F = F = 0 . 1 G = 0 . 1 × 1 . 5 × 1 0 5 N = 1 . 5 × 1 0 4 N 2 F = G = 1 . 5 × 1 0 5 N L R 2 G R 3 R 1
1/2
p a 1 0 3 5 . 0 1 0 5 . 1 5 2 5 m N S F p ( 3 ) m / s 2 0 6 0 1 2 0 0 t S s m v P = w / t = F S / t = F v = 1 . 5 × 1 0 4 N × 2 0 m / s = 3 × 1 0 5 W 2 0 . 1 S S 1 A V W U P I 4 2 2 0 8 8 0 2 0 1 0 m i n R 1 8 0 w J W t P W 4 8 0 0 0 s 6 0 1 0 8 0 3 R 2 P 2 = P - P = 8 8 0 W - 8 0 W = 8 0 0 W 5 . 6 0 8 0 0 2 2 0 2 2 2 2 W V P U R 1 1 8 2 1 . 1 2 3 2 0 0 0 4 ( O A 2 1 ) 2 2 . 1 2 2 0 3 1 . 3 4 4 × 1 0 5 4 2 3 . 1 2 3 4 2 4 8 . 6 4 × 1 0 5 5 1 9 0
2/2
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