Download - Coulombs Law 5
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8/16/2019 Coulombs Law 5
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F = k|q 1q 2|
r2 .
F q 1 q 2 r k
k = 8 × 9 · 2
2 ≈ 8 × 9
· 2
2 .
F ∝ 1/r2
F
q 1 q 2
r
q 1
q 2
0 × −
F =
k |q1q2|r2
F = k|q 1q 2|
r2
8.99 × 9 · 2/ 2
×
( × )(1.60× )(0.530× )
2
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F = × .
8.99× / 2
F G = GmM
r2 ,
G = 6.67 × − · 2/ 2 m M
F G =
6.67 × −− · 2/ 2×
9.11 ×
1.67 ×
0.530 ×
2
= 3.61 ×
F
F G= × .
•
•
F = k|q 1q 2|
r2 ,
q 1 q 2 r k ≈ 8.99 × 109
· 2/ 2
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0.700 µ − − 0.600 µ
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8/16/2019 Coulombs Law 5
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+2 µ +6 µ +4 µ
+6 µ
q
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8/16/2019 Coulombs Law 5
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8.00 µ
5.00 µ −− 3.00 µ
q
q
3.00m 20 µ
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8/16/2019 Coulombs Law 5
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F = k |q1q2|r2 = ma ⇒ a = kq2
mr2
= (9.00×109 · 2/ 2)(1.60×10−−19 )
2
(1.67×10−−27 )(2.00×10−−9 )2
= 3.45 × 1016 2
1 × −9
1 × −
