Đề luyện thi đại học khối D

... cực a i cu a electron quang điện gấp đơi Xác định cơng thoát eletron cu a kim loại làm catot Cho h = 6,625.10 -34Js và c = 3.108m/s A A = 3,3975.10 -19J B A = 2,385.10 -18J C A = 5,9625.10 ... n Tính góc quay ròng rọc sau quay 16 s Bỏ qua lực cản A 1500 rad B 150 rad C 750 rad D 576 rad Câu 56.Một vật dao động điều h a dọc theo trục Ox, quanh vị trí cân O với biên độ A c...

Ngày tải lên: 19/08/2013, 01:10

... với AB Hạ AD ⊥ ∆ (D ∈ ∆) ⇒ AB // (SND) ⇒ d(AB, SN) = d(AB, (SND)) = d (A, (SND)) Hạ AH ⊥ SD (H ∈ SD) ⇒ AH ⊥ (SND) ⇒ d (A, (SND)) = AH Tam giác SAD vuông A, có: AH ⊥ SD AD = MN = a ⇒ d(AB, SN) = AH ... (SAB) (SAC) vuông góc với (ABC) ⇒ SA ⊥ (ABC) S AB ⊥ BC ⇒ SB ⊥ BC ⇒ SBA góc (SBC) (ABC) ⇒ SBA = 60o ⇒ SA = AB tan SBA = 2a Mặt phẳng qua SM song song với BC, cắt AC N H ⇒ MN //BC N trung điểm...

Ngày tải lên: 22/06/2014, 14:20

Ngày tải lên: 22/06/2014, 14:20

... had achieved 36A could should C would D. ought 37A in B up C out D. away 38A depressed B weakened C lowered D fainted 39A wonder B idea C curiosity D regard 40A become B developed C arisen D changed ... home/read/ yesterday A All day yesterday reading at home we sat B We all day yesterday sat at home reading C All day yesterday we sat at home reading D Reading at home all day yester...

Ngày tải lên: 30/05/2015, 03:00

Ngày tải lên: 20/08/2013, 08:10

... that his students could understand it B so that his students to understand it C in order for his students to understand it D for his students could understand it Question 64: Did you apologise to ... caused B done C had D made Question 69: A they B who C whose D which Question 70: A injured B painful C injuries D wounded Question 71: A were considered B have considered C had considere...

Ngày tải lên: 30/08/2013, 08:12

... Điểm thi 24h Xem tra điểm thi tốt nghiệp THPT Đề thi tốt nghiệp trung học phổ thông năm Đề thi đáp án tốt nghiệp THPT Xem tra đáp án đề thi tốt nghiệp THPT Trang 3/7 - Mã đề thi 109 Nguồn: diemthi.24h.com.vn ... Điểm thi 24h Xem tra điểm thi tốt nghiệp THPT Đề thi tốt nghiệp trung học phổ thông năm Đề thi đáp án tốt nghiệp THPT Xem tra đáp án...

Ngày tải lên: 05/09/2013, 16:34

... that his students could understand it B so that his students to understand it C in order for his students to understand it D for his students could understand it Question 64: Did you apologise to ... caused B done C had D made Question 69: A they B who C whose D which Question 70: A injured B painful C injuries D wounded Question 71: A were considered B have considered C had considere...

Ngày tải lên: 09/09/2013, 18:13

... in order that his students could understand it B so that his students to understand it C in order for his students to understand it D for his students could understand it Question 64: Did you ... caused B done C had D made Question 69: A they B who C whose D which Question 70: A injured B painful C injuries D wounded Question 71: A were considered B have considered C had considered D...

Ngày tải lên: 09/09/2013, 18:13

... in order that his students could understand it B so that his students to understand it C in order for his students to understand it D for his students could understand it Question 64: Did you ... caused B done C had D made Question 69: A they B who C whose D which Question 70: A injured B painful C injuries D wounded Question 71: A were considered B have considered C had considered D...

Ngày tải lên: 09/09/2013, 18:13

... 26 X, 26 Y, 26 Z? 12 13 A X Y có số nơtron B X, Z đồng vị nguyên tố hoá học C X, Y thuộc nguyên tố hoá học D X Z có số khối Câu 16: Cho dung dịch X gồm: 0,007 mol Na+; 0,003 mol Ca2+; 0,006 mol ... khí X gồm N2 H2 có tỉ khối so với He 1,8 Đun nóng X thời gian bình kín (có bột Fe làm xúc tác), thu hỗn hợp khí Y có tỉ khối so với He Hiệu suất phản ứng tổng hợp NH3 A 50% B 40% C 36% D...

Ngày tải lên: 17/12/2013, 17:29

... that his students could understand it B so that his students to understand it C in order for his students to understand it D for his students could understand it Question 64: Did you apologise to ... caused B done C had D made Question 69: A they B who C whose D which Question 70: A injured B painful C injuries D wounded Question 71: A were considered B have considered C had considere...

Ngày tải lên: 26/02/2014, 01:20

... cards C to C reminded C school C why D expend D carnival D nor D regular D wore D notes D from D remembered D bank D whether Mark the letter A, B, C, or D on your answer sheet to show the underlined ... be important today Gap fills Why did you decide to read this, and will you keep reading to the end? Do you expect to understand every single part of it and will you remem...

Ngày tải lên: 20/03/2014, 04:21

... là: A AB/ab x AB/ab, f = 40% B Ab/aB x Ab/aB, f = 40% C Ab/aB x Ab/aB, f = 20% D AB/ab x AB/ab, f = 20% Câu 39: B nh b ch tạng người đột biến gen lặn NST thường Trong QT người 100 người b nh thường, ... chéo kép là: A 30% B 5% C 3% D 29% Câu 30: Đại địa chất gọi kỉ nguyên b sát? A Đại cổ sinh < /b> B Đại tân sinh < /b> C Đại thái cố D Đại trung sinh < /b> Câu 31: Ở loài...

Ngày tải lên: 02/04/2014, 12:20