轻松一刻:中国古代十六圣1、 酒圣杜康 2、文圣孔子 3、史圣司马迁 4、诗圣杜甫 5、医圣张仲景 6、武圣关羽（也有一说岳飞） 7、书圣王羲之 8、草圣张旭 9、画圣吴道子 10、茶圣陆羽 11、兵圣孙武 12、谋圣张良 13、科圣 张衡 14、药圣李时珍（也有一说孙思邈） 15、商圣范蠡 16、厨圣伊尹
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【轻松一刻】中国古代十六圣1、 酒圣杜康 2、文圣孔子 3、史圣司马迁 4、诗圣杜甫 5、医圣张仲景 6、武圣关羽（也有一说岳飞） 7、书圣王羲之 8、草圣张旭 9、画圣吴道子 10、茶圣陆羽 11、兵圣孙武 12、谋圣张良 13、科圣 张衡 14、药圣李时珍（也有一说孙思邈） 15、商圣范蠡 16、厨圣伊尹
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上海看看牛视网络传播有限公司 版权所有Problem 17A
1) 38.7 cm 2) 58.5.cm 3) 1.15 m 4) -143 N 5) 3.50 x 10^-4 N6) 1.4 x 10^-3 N 7) 1.60 x 10^-19 C 8) 1.60 x 10^-19 C 9) 1.60 x 10^-19 C 10) 2.2 x 10^-17 C
Problem 17B
1) F(tot)=1.8 x 10^-10 N, 45? 2) 2.24 x 10^10 N pointing upward along the y-axis 3) F(tot)=1.74 x 10^-7 N, -21.22? 4) 3.84 x 10^-6 N directected along the -y axis 5) F(tot)=4.82 x 10^-19 N, 45? 6) F(tot)=4.53 x 10^-6 N, 26.6? 7) F(tot)=3.97 x 10^-8 N, 9.29? 8) F(x,tot)=7.2x10^4 N, F(y,tot)= -1.8 x 10^4 N, F(tot)=7.4 x 10^4 N, -14? 9) F(tot)=3.66 x 10^5 N, 45? 10) F(tot)=0 N along the x axis
Problem 17C
1) -1.7 x 10^-1 N 2) 18 N 3) 259 N 4) 16 cm 5) 36 cm 6) 7.3 cm
Problem 17D
1) -54 N in the -x direction 2) 7.5 x 10^-6 N in the +y direction 3) -3.29 x 10^-14 N upward 4) 4.40x10^5 N/C, 89.1? 5) 3.15 x 10^5 N/C 6) 5.06 x 10^-12 C 7) 1.61 x 10^-12 C 8) 3.6 x 10^-10 m 9) -0.67 mm 10) -1.37 x 10^-7 m
Section 17-1 Review, page 633
1) It is equal to the magnitude of the rod' Charge is conserved. 2) Charge is quantized. 3) 6.25 x 10^19 electrons 4) The taped induces a surface charge on the desk, so the two are attracted to one another. 6) More paint hits the object being painted because of an electrical attraction between the chargted droplets and the oppositely charged object.
Section 17-2 Review, page 642
1a) 4.4 N b) attractive c) 1.2 x 10^13 electrons 2) both are field forces, both are electric forces are attractive or repulssive whnile gravitational forces are always attractive, electric force is significantly stronger than gravitational force 3) 7.3 x 10^-8 N, along the negative x axis 4) 35.2 cm from q(1) (24.8 cm from q(2)) 5) new distance = 1/sqrt(2)(old distance)
Section 17-3 Review, page 652
1) 8.0 x 10^3 N/C, directed toward the 40.0 x 10^-9 C charge 2a) -3/8 b) q(1) q(2) is positive 3a) All lines should point away from the two charges, and one charge should have four time as many lines as the other. b) All lines should point toward the tow charges, and one charge should have four times as many lines as the other. 4) because charge accumulated at sharp points 5) They experience an electrical attraction that pulls them back toward the object.
Section 17-1 Worksheet
1a) Experiment A, no charges were transferred. Experiment B, charges were tranferred between the sphere and the ground. Experiment C, Charges were transferred between the sphere and the rod. b) Diagrams should show: Spher A, negative charges (-) on the left, positive (+) Sphere B, excess (-) Sphere C, excess (+) d) Experiment A e) no change in Experiment A or Experiment B; reduced charge in Experiment C
Section 17-2 Worksheet
1a) 20.0 cm b) 0.899 N (attraction along the line q(1)-q(3)) c) 0.899 N (attraction along the line q(1)-q(2)) d) 1.40 N repulsion pulling to the right e) Diagrams should show F(1) pointing from q(3) toward q(1) and F(2) pointing from q(3) toward q(2) f) 36.9? g) F(1x)=-0.709 N; F(2x)=0.719 N; F(1Y)=-0.540 N; F(2y)=-0.540 N h) -1.08 N pointing down i) downward along the y-axis
Section 17-3 Worksheet
1a) 21.2 cm b) all same strength of 1.60x10^-6 N/C along the diagonal lines, with E(1) pointing away from q(1), E(2) from q(2), E(3) from q(3), and E(4) from q(4) c) Resultant electric field E=0 2a) 4.61x10^-14 N down b) 4.61x10^-14 N up c) 1.44x10^-18 C d) 9 electrons用简便方法计算下面各题0.5×（6-0.4） 9.5×99 4.5×2.01 8.7×9.9 （4-0.2）×2.512.5×32×0.25 12-3.7×2.4 7.8×0.5×1.2 46.7×5.2-6.7×5.22.6×(15.7+2.8) 0.25×31.2×0.4 4.6×10.2 4.29×0.8+0.8×5.719.5×99 4.5×2.01 0.5×12.5×2×0.8 0_作业帮
拍照搜题，秒出答案
用简便方法计算下面各题0.5×（6-0.4） 9.5×99 4.5×2.01 8.7×9.9 （4-0.2）×2.512.5×32×0.25 12-3.7×2.4 7.8×0.5×1.2 46.7×5.2-6.7×5.22.6×(15.7+2.8) 0.25×31.2×0.4 4.6×10.2 4.29×0.8+0.8×5.719.5×99 4.5×2.01 0.5×12.5×2×0.8 0
用简便方法计算下面各题0.5×（6-0.4） 9.5×99 4.5×2.01 8.7×9.9 （4-0.2）×2.512.5×32×0.25 12-3.7×2.4 7.8×0.5×1.2 46.7×5.2-6.7×5.22.6×(15.7+2.8) 0.25×31.2×0.4 4.6×10.2 4.29×0.8+0.8×5.719.5×99 4.5×2.01 0.5×12.5×2×0.8 0.5×(6-0.4)0.99×102 2.5×13+0.9 22-16.7×7 3.75×4.3×0.511.5+16.5×7.2各位大侠快来帮我回答问题
0.5×（6-0.4)=0.5×6-0.5×0.4=3-0.2=2.89.5×99=9.5×(100-1)=9.5×100-9.5=95-9.5=4.5×2.01=4.5×(2+0.01)=4.5×2+4.5×0.01=8.7×9.9=8.7×(1-0.1)=8.7×1-8.7×0.1（4-0.2）×2.5=4×2.5-0.2×2.5=其他的类似,用到分配率：（a+b）×c=a×c+b×c匿名用户上传于：
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正在努力载入，请稍后～～1.2.3.4.5.6.7.9.10.11.12.13分别用加减乘除四种方法算数，每个数字只能用一_百度知道
1.2.3.4.5.6.7.9.10.11.12.13分别用加减乘除四种方法算数，每个数字只能用一
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