nhung bai tap vat ly hay lop 8

... k  ng ca qu cu là: A. 1 ,87 8s;14,4cm B. 1 ,88 7s; 7,2cm C. 1 ,88 3s; 7,2cm D. 1 ,88 1s;14,4cm Câu 44: Trong giao thoa Y-âng có a = 0,8mm, D = 1,2m. Ching thi hai bc x c ... & kho khó 2.0 | 48 tan 3 = 2 L3 C3 L3 C3 2 L2 C2 1 180 πL Z Z Z Z 4 ( 180 π) LC 1 180 πC = = = . 1 R Z Z 3 (240π) LC 1 240πL 240πC      tan 3 = 2 2 2 2 ( 180 π) 1 4 4 5 5 (120π) == (240π) 3 ... 06,0.10. 08, 0.1,0 2 04,0.2 2 1,0.2 2 08, 0 22 2 max  v = 0,0036  2 max v = 0,09  v max = 0,3(m/s) = 30cm/s. Cách 2: Độ giảm biên độ sau nửa chu kỳ 12 2μmg 2.0.1.0, 08. 10 A A = = = 0,08m = 8cm k2  ...

Ngày tải lên: 30/05/2014, 11:49

... S 1 = 3S 2 hay a + x = 2 2 h x+ 2 2 2 2 2 2 ( ) 9( ) 8 2ax+9h 0a x h x x a⇔ + = + ⇔ − − = thay s vào ta có:ố 8x 2 -100 15 -6.50 2 = 0 ph ng trình có 2 nghi m: xươ ệ 1 = 73 ,8( m), và x 2 ... v i tớ 2 = 1 2( ) 2(300 1, 225) 7 ,84 9 ,8 h h s g + + = = - V y th i gian t ng c ng đ v t r i ch m đ t làậ ờ ổ ộ ể ậ ơ ạ ấ : t = t 1 + t 2 = 0,5 + 7 ,84 = 8, 34(s) Bài 6.10 : M t ca nô chuy n ... ớ α v i:ớ 0 0 1 73 ,8 tan 1, 476 55,9 55 54' 50 x h α α = = = ⇒ = = + H ng th 2, ch y xi t vào trong đo n AH, h p v i MH góc ướ ứ ạ ế ạ ợ ớ β v i:ớ 0 0 2 25, 4 tan 0,5 08 26,93 26 56 ' 50 x h β...

Ngày tải lên: 07/07/2014, 10:45

Ngày tải lên: 12/09/2013, 02:49

... 06,0.10. 08, 0.1,0 2 04,0.2 2 1,0.2 2 08, 0 22 2 max  v = 0,0036  2 max v = 0,09  v max = 0,3(m/s) = 30cm/s. Cách 2: Độ giảm biên độ sau nửa chu kỳ 12 2μmg 2.0.1.0, 08. 10 A A = = = 0,08m = 8cm k2  ...  2 max v = 0 ,88  v max = 2204, 088 ,0  = 0,2. 22 (m/s) = 20 22 cm/s. Câu 14: Vật xuất phát từ M đến N thì đi được quãng đường S = 2 + 2 2 . Thời gian: T T 5 Δt = + = (s) 12 8 96 Câu ... 22 C U 170 150 80 V R U 2 .80 . 170 80 120V Hệ số công suất của mạch là 2 120 cos cos 0 ,8 150 Công suất tiêu thụ của mạch khi đó là: 2 2 2 2 max U P .cos P .cos 150.0, 8 96W R Câu 34:...

Ngày tải lên: 03/01/2014, 20:17

... 18: Mộtconlắcđơngồmvậtnặngcóm=250gmangđiệntíchq=10 –7 Cđượctreobằngmộtsợidây khôngdãn,cáchđiện,khốilượngkhôngđángkể,chiềudài90cmtrongđiệntrườngđềucóE=2.10 6 V/m(Ecó phươngnằmngang).Banđầuvậtđứngyênởvịtrícânbằng.Ngườitađộtngộtđổichiềuđườngsứcđiệntrường nhữngvẫngiữnguyênđộlớncủaE,lấyg=10m/s 2 .Chukìvàbiênđộdaođộngcủaquảcầulà: A.1 ,87 8s;14,4cm. B.1 ,88 7s;7,2cm.C.1 ,88 3s;7,2cm. D.1 ,88 1s;14,4cm. ChọnD. *Chukìdaođộngcủaconlắc:   2 2 l l T 2 2 1 ,88 1 s g' qE g m    ... 120: TrongthínghiệmgiaothoaánhsángvớihaikheY-âng,khoảngcáchtừmặtphẳngchứahaikheS 1 vàS 2 đến mànMlàD 1 =250cm.KheSlànguồncungcấpánhsángđơnsắcchohaikheS 1 vàS 2 .LúcđầukhesángScáchđềuhai kheS 1 vàS 2 vàcáchmặtphẳngchứahaikhenàymộtđoạnD 2 =49cm,sauđóchokheSchuyểnđộngtịnhtiến20mm theophươngtạomộtgóc30 0 vớimànMvàhướngraxamànM.Khiđóvântrungtâmtrênmàndờimộtđoạnbằngbao nhiêu?Khoảngvântrênmàncóthayđổikhông? A. Dời 8, 66cm,khoảngvântrênmànkhôngthayđổi. B. Dời7,07cm:khoảngvântrênmàncóthayđổi. C. Dời 8, 84mm,khoảngvântrênmànkhôngthayđổi. D. Dời 8, 84mm,khoảngvântrênmàncóthayđổi. ChọnA  Câu ... 16:Haiconlắcđơncùngchiềudàivàcùngkhốilượng,cácvậtnặngcoilàchấtđiểm,chúngđượcđặtở cùngmộtnơivàtrongđiệntrườngđều E  cóphươngthẳngđứnghướngxuống,gọiT 0 làchukỳchưatíchđiện củamỗiconlắc,cácvậtnặngđượctíchđiệnlàq 1 vàq 2 thìchukỳtrongđiệntrườngtươngứnglàT 1 vàT 2 ,biết T 1 =0,8T 0 vàT 2 =1,2T 0 .Tỉsốq 1 /q 2 là: A. 44 /81 . B. -81 /44. C. -44 /81 . D. 81 /44. ChọnB.         1 1 0 1 q E l l 9 T 2 0,8T 0 ,8. 2 g q E g m 16 g m  ...

Ngày tải lên: 28/04/2014, 11:48

... 1 2 2 d d   mt khc nhìn hình v ta có 2 2 2 1 2 2 1 2 1 2 2 2 2 2 1 2 1 (8 ) 8 32 2( ) 32 (8 ) 8 ( ) 16 8 2 d x d d x d d x d x d d x d x                        ... 1) d k         Hay : 1 1,6 (2 1) (2 1) (2 1).0 ,8 2 2 d k k k        (1) . Theo hình v ta thy 1 AO d AC   (2). Thay (1) vào (2) ta có : 2 2 (2 1)0 ,8 2 2 AB AB k OC    ... B B 2 2 8 8 C C 1 1 8 8 ...

Ngày tải lên: 13/05/2014, 13:33

... độ ánh Sáng trong chân không 3.1 08 (m/S). Tốc độ của một êlectron tăng tốc qua hiệu điện thế 10^5 V là: A. 0.4.10^8m/S B. 0 .8. 10^8m/S C. 1,2.10^8m/S D. 1,6.10^8m/S Tương tự như câu của thầy Điền ... điểm ban đầu có n2 = 1,8n1 nguyên tử bị phân rã. Xác định chu kì bán rã của chất phóng xạ này: A: 8, 7h B: 9,7h C: 15h D: 18h Ta có: (1) (2) Lấy (2) chia (1) => = 1 ,8 => Giải phương ... 10:(2 38, 92)U sau một chuỗi các phóng xạ và biến thành hạt nhân bền (206 ,82 )Pb . Tính thể tích He tạo thành ở điều kiện chuẩn sau 2 chu kì bán rã biết lúc đầu có 119g urani: A. 8, 4lít B. 2 ,8 lít...

Ngày tải lên: 23/05/2014, 20:08

... doanvluong@yahoo.com ; doanvluong@gmail.com ℡ ℡℡ ℡ Điện Thoại: 09157 181 88 – 090 684 82 38 GV: Đoàn Văn Lượng - Đ T: 09157 181 88 - 090 684 82 38 Trang 13 Email: doanvluong@yahoo.com ; doanvluong@gmail.com ... x=k f(x)=v 1 2 3 4 5 6 7 8 9 3.04 1.52 1.0133 0.76 0.6 08 0.506 0.434 0. 38 0.3377 GV: Đoàn Văn Lượng - Đ T: 09157 181 88 - 090 684 82 38 Trang 4 Email: doanvluong@yahoo.com ... tác b ấ m máy. GV: Đoàn Văn Lượng - Đ T: 09157 181 88 - 090 684 82 38 Trang 8 Email: doanvluong@yahoo.com ; doanvluong@gmail.com Trang 8 III.GIẢI NHANH TỔNG HỢP DAO ĐỘNG NHỜ MÁY TÍNH CASIO...

Ngày tải lên: 12/06/2014, 16:48

... 0, 8. Hãy xác định công suất định mức của quạt điện: A. 90W B. 266W C. 80 W D. 160W Hướng Dẫn  U 2 = U 2 R + U 2 q + 2U R .U q .cos(ϕ) =⇒ 380 2 = U 2 R + 220 2 + 2.U R .220.0, 8 =⇒ U R = 180 V ... người đó nghe được. Hướng Dẫn  f nghe < 180 00 =⇒ nf 1 < 180 00 =⇒ n < 180 00 420 =⇒ n < 42, 85 7; [n max ] = 42 =⇒ f max = 420.42 = 17640(Hz) 1 38 Một vật dao động điều hoà với phương trình ... hẳn là: t=N.T=12500.2= 250000s 89 Dưới tác dung của một lực có dạng F = −0, 8sin5t(N) một vật có khối lượng 400 dao động đều hòa biên độ dao đông của vật là: 8cm A. 8cm B. 20cm C. 12cm D. 32cm Hướng...

Ngày tải lên: 21/06/2014, 06:20

... 3 2 3 T  1 + q 2 = 7,4.10 -8  1  2  A. 1, 48. 10 -8  -8 C B. 6,4.10 -8  -8 C C. 3,7.10 -8  -8 C D. 2,4.10 -8  -8 C Câu 4:  E ... src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAABB4AAATUCAIAAABAt1O2AAAACXBIWXMAABYlAAAWJQFJUiTwAAAgAElEQVR42uzdf2zUd/3A8ffpFUzuXAzz8CYlLbVx40cPBUaTlmqQTg10QeMwtkSMS0iG21jMYpYli2F/mBiTZYpsLBHFRGl1/oWpxLkaYLOXVJewXF0lhNgjFjl6qM3SmyZcct8/7vtlyGC0d+2+7d3j8de8q4y+PveBe+7zefUipVIpMHuRSMQQFrs5f/Ev5FeFMx0AmPd3yN5wAAAA1XufEQAAANICAABYEKJG8B4oFouNjY2XL 182 igXCfYAAANJiUZqYmLh8+bK3swAA1DA3RL0X0ul0KpUyBwAApAVVOX/+/Nq1a80BAABpQVXOnj3b09NjDgAA1DCfa/GeTDkSyWQybW1tRgEAQK1y1WLe5fP5EEIymTQKAACkBZXL5XIhhEQiYRQAAEgLKjc6Otrd3W0OAABIC6oyMjLS1dVlDgAASAuqcurUqdbWVnMAAKC2+QlR8z/iSGR8fLy5udkoAACoYa5azK9sNhvscAMAIC2o0sWLF5PJZCwWMwoAAKQFlTtz5szWrVvNAQAAaUFV0ul0R0eHOQAAIC2oysmTJ1taWswBAABpQeWKxWIul1uzZo1RAAAgLajcxMRECMGPnQUAQFpQlXQ6nUqlzAEAAGnBTBUKhXc+eP 78+ 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 +83 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 889 5gAAgLSgKm +88 camTZvMAQCAm/ITopiRYrHY0NAwPj7uo7gBALgpVy2YkYmJiRBCY2OjUQAAIC2o3NjYWDKZjEajRgEAgLSgcn/961+3bt1qDgAASAuqkk6ne3p6zAEAAGlBVQYGBpqamswBAABpwYwUi8VisXjDg4VCIYSwYsUK8wEAQFpweydOnFi5cuXXv/714eHh6x/P5/MhBD92FgCAd+EH/hBCCMVicePGjZlMZvv27T//+c9zudzLL7 987 dl0Ot3d3W1KAAC8C1ctCCGEaDS6d+/e6enp7373uyGEoaGh8pWKspGRkTVr1pgSAADSgtt75JFHYrFYW1tbKpUKIfzyl7 +89 tTY2Fh7e7sRAQDwLiKlUskUuF5/f//u3buTyeSlS5f+91USiWQymba2NsMBAEBaMFOFQiEej4cQyjmRz+eXL 18+ PT0di8UMBwCAW3FDFDeKxWK9vb0hhCNHjoQQzp07V37QZAAAkBbMzsMPPxxCOHjwYKFQuHDhQrk0AABAWjA77e3tyWQyhHD69OnBwcF77rnHTAAAkBbMWjQa3bdvXwjhySeffOONNzZt2mQmAAC8O2vc3Fw2m121alX5n8fHx30UNwAA0oIKrV+/PpPJhBCuXr0ajfrgdgAA3o33i9zSE 088 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 /81 FNP3fTZ6enpWCxmSlCx4eHhI0eO/PSnP73VF/ijG4AFyK4Fs1YsFjOZzKpVq0q3oCugSmfOnEkkElevXr3VWWZEAEgLasHExMSuXbuampqMAuZJOp1esWJFNOqeVQCkBbX+pqe1tfXjH/+4UcA8GRgYWLZsmTkAIC2ocSMjI0uWLEkkEkYB8yGfz6dSqfe///1GAYC0oMadOnUqmUyaA8yTc+fObdiwoaOjwygAkBbUsvIO9x133GEUME/KO9yNjY1GAYC0oJbZ4Yb5ZocbAGlBvbzpscMN88oONwDSgrpghxvmlR1uAKQF9cION8wrO9wASAtqU7FYvOF/2uGGeT3L7HADIC2oQdlsduPGjcPDw9cemZiY2Lp1qx1umKuoOHTo0MaNG69/MJ1O33nnnXa4AZAW1FRX7N279+9//3tvb+/1b3pWr15thxvmxJ49e4aHhzOZzCuvvHLtwYGBgeXLlxsOANKC2tHY2Lhnz56nn376b3/7 289 +9rPygyMjI7FYzA43zInvf//7d999d1tb2xe+8IXybVH5fD6ZTC5dutRwAJAW1I5oNPrVr371G9/4xrp16/bv319+33Pq1KkVK1YYDsyJ5cuXHzhw4PDhw//6178GBgZCCOfOndu8ebMdbgCkBbXphRdemJqaGhgYKBQKmUzGJQuYW52dndcC/ve///3dd99thxsAaUHNvu/ZunXr/v37X3/9dTvcMB/6+/vLAf/qq6/a4QZAWlDLfvKTn0xNTT3wwAN2uGE+tLW17dq1a//+/UNDQ3a4AZAW1LLm5uZdu3blcjk73DBPvve9701NTdnhBkBaUPuee+65EMJdd91lFDBPAb9v376PfvSjdrgBkBbUuEQiMT09fenSJaOAefL 888 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 484 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 588 cWWlpaOjg5HEQAApEWFstlsLpebmpqyaAEAANKicul0OpVKLVmyxCEEAABpUbnBwcH777+/tbXVIQQAAGlRuYGBgcbGRosWAAAgLWakUCjk8/kbHsxmsyGEt956y6IFAABIi9soFouHDh2Kx+Pd3d3FYvH6pyxaAACAtJipxx9/fNmyZevWrctkMgcPHrz+qfKiRUtLi+MHAAALRKRUKi3Y39yhQ4c6Ojo2btwYQhgfH792+1MkEjl8+PCXvvSlRCLhEAIAwEKwoHctHnnkkQ0bNhw7diyE8LnPfa58W1R50WJiYkJXAACAtJiFvr6+7u7uc+fOPf /88 yGEwcFBixYAALDQLO ... src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAABB4AAATUCAIAAABAt1O2AAAACXBIWXMAABYlAAAWJQFJUiTwAAAgAElEQVR42uzdf2zUd/3A8ffpFUzuXAzz8CYlLbVx40cPBUaTlmqQTg10QeMwtkSMS0iG21jMYpYli2F/mBiTZYpsLBHFRGl1/oWpxLkaYLOXVJewXF0lhNgjFjl6qM3SmyZcct8/7vtlyGC0d+2+7d3j8de8q4y+PveBe+7zefUipVIpMHuRSMQQFrs5f/Ev5FeFMx0AmPd3yN5wAAAA1XufEQAAANICAABYEKJG8B4oFouNjY2XL 182 igXCfYAAANJiUZqYmLh8+bK3swAA1DA3RL0X0ul0KpUyBwAApAVVOX/+/Nq1a80BAABpQVXOnj3b09NjDgAA1DCfa/GeTDkSyWQybW1tRgEAQK1y1WLe5fP5EEIymTQKAACkBZXL5XIhhEQiYRQAAEgLKjc6Otrd3W0OAABIC6oyMjLS1dVlDgAASAuqcurUqdbWVnMAAKC2+QlR8z/iSGR8fLy5udkoAACoYa5azK9sNhvscAMAIC2o0sWLF5PJZCwWMwoAAKQFlTtz5szWrVvNAQAAaUFV0ul0R0eHOQAAIC2oysmTJ1taWswBAABpQeWKxWIul1uzZo1RAAAgLajcxMRECMGPnQUAQFpQlXQ6nUqlzAEAAGnBTBUKhXc+eP 78+ 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 +83 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 889 5gAAgLSgKm +88 camTZvMAQCAm/ITopiRYrHY0NAwPj7uo7gBALgpVy2YkYmJiRBCY2OjUQAAIC2o3NjYWDKZjEajRgEAgLSgcn/961+3bt1qDgAASAuqkk6ne3p6zAEAAGlBVQYGBpqamswBAABpwYwUi8VisXjDg4VCIYSwYsUK8wEAQFpweydOnFi5cuXXv/714eHh6x/P5/MhBD92FgCAd+EH/hBCCMVicePGjZlMZvv27T//+c9zudzLL7 987 dl0Ot3d3W1KAAC8C1ctCCGEaDS6d+/e6enp7373uyGEoaGh8pWKspGRkTVr1pgSAADSgtt75JFHYrFYW1tbKpUKIfzyl7 +89 tTY2Fh7e7sRAQDwLiKlUskUuF5/f//u3buTyeSlS5f+91USiWQymba2NsMBAEBaMFOFQiEej4cQyjmRz+eXL 18+ PT0di8UMBwCAW3FDFDeKxWK9vb0hhCNHjoQQzp07V37QZAAAkBbMzsMPPxxCOHjwYKFQuHDhQrk0AABAWjA77e3tyWQyhHD69OnBwcF77rnHTAAAkBbMWjQa3bdvXwjhySeffOONNzZt2mQmAAC8O2vc3Fw2m121alX5n8fHx30UNwAA0oIKrV+/PpPJhBCuXr0ajfrgdgAA3o33i9zSE 088 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 /81 FNP3fTZ6enpWCxmSlCx4eHhI0eO/PSnP73VF/ijG4AFyK4Fs1YsFjOZzKpVq0q3oCugSmfOnEkkElevXr3VWWZEAEgLasHExMSuXbuampqMAuZJOp1esWJFNOqeVQCkBbX+pqe1tfXjH/+4UcA8GRgYWLZsmTkAIC2ocSMjI0uWLEkkEkYB8yGfz6dSqfe///1GAYC0oMadOnUqmUyaA8yTc+fObdiwoaOjwygAkBbUsvIO9x133GEUME/KO9yNjY1GAYC0oJbZ4Yb5ZocbAGlBvbzpscMN88oONwDSgrpghxvmlR1uAKQF9cION8wrO9wASAtqU7FYvOF/2uGGeT3L7HADIC2oQdlsduPGjcPDw9cemZiY2Lp1qx1umKuoOHTo0MaNG69/MJ1O33nnnXa4AZAW1FRX7N279+9//3tvb+/1b3pWr15thxvmxJ49e4aHhzOZzCuvvHLtwYGBgeXLlxsOANKC2tHY2Lhnz56nn376b3/7 289 +9rPygyMjI7FYzA43zInvf//7d999d1tb2xe+8IXybVH5fD6ZTC5dutRwAJAW1I5oNPrVr371G9/4xrp16/bv319+33Pq1KkVK1YYDsyJ5cuXHzhw4PDhw//6178GBgZCCOfOndu8ebMdbgCkBbXphRdemJqaGhgYKBQKmUzGJQuYW52dndcC/ve///3dd99thxsAaUHNvu/ZunXr/v37X3/9dTvcMB/6+/vLAf/qq6/a4QZAWlDLfvKTn0xNTT3wwAN2uGE+tLW17dq1a//+/UNDQ3a4AZAW1LLm5uZdu3blcjk73DBPvve9701NTdnhBkBaUPuee+65EMJdd91lFDBPAb9v376PfvSjdrgBkBbUuEQiMT09fenSJaOAefL 888 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 484 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 588 cWWlpaOjg5HEQAApEWFstlsLpebmpqyaAEAANKicul0OpVKLVmyxCEEAABpUbnBwcH777+/tbXVIQQAAGlRuYGBgcbGRosWAAAgLWakUCjk8/kbHsxmsyGEt956y6IFAABIi9soFouHDh2Kx+Pd3d3FYvH6pyxaAACAtJipxx9/fNmyZevWrctkMgcPHrz+qfKiRUtLi+MHAAALRKRUKi3Y39yhQ4c6Ojo2btwYQhgfH792+1MkEjl8+PCXvvSlRCLhEAIAwEKwoHctHnnkkQ0bNhw7diyE8LnPfa58W1R50WJiYkJXAACAtJiFvr6+7u7uc+fOPf /88 yGEwcFBixYAALDQLO...

Ngày tải lên: 18/07/2014, 18:22

... (A). - I ABO = ABO AO R U = 2. 8 7 14 = 8 (A) - U BO = I ABO .R BO = 8. 8 3 .2 = 6 (V) - I BO = 2 R U BO = 2 2 6 = 6 (A) - I BDO = I ABO - I BO = 8 - 6 = 2 (A) * Căn cứ vào mạch điện ... Nguyễn Xuân Ôn Giáo án bồi dưỡng học sinh giỏi - AB R 1 = R 3 8 1 + R 3 2 1 = RR 2 3 8 3 + - AB R 1 = R8 15 ⇒ R AB = R 15 8 . c. Tính điện trở tương đương giữa A và 0 : - Do đối xứng ... 3 47,2 = 0 ,82 3 (A) U 24 = U 2 = U 4 = I. R 24 = 2,10 21 . 7 12 = 3,53 (V) I 2 = 2 2 R U = 3 53,3 = 1, 18 (A) Ta có : I 2 > I 1 ⇒ I A = I 2 - I 1 = 1, 18 - 0 ,82 3 = 0,357 (A) Vậy...

Ngày tải lên: 03/08/2014, 19:48

Ngày tải lên: 13/09/2014, 20:29

Ngày tải lên: 04/11/2014, 15:59

Ngày tải lên: 15/01/2015, 18:06

Ngày tải lên: 18/05/2015, 16:01

Ngày tải lên: 28/05/2015, 16:49

Ngày tải lên: 31/05/2015, 10:08

Ngày tải lên: 13/06/2015, 14:04