... 39 2.3 .2 Cách thức tạo lớp học trực tuyến website http://lophoc.thuvienvatly.com 41 2.4 Xây dựng module nội dung khóa học 43 2.4 .1 Nội dung khóa học 43 2.4 .2 Xây dựng phần ... phạm 62 3 .1. 2 Nhiệm vụ thực nghiệm sư phạm 62 3 .2 Đối tượng thực nghiệm sư phạm 63 3 .3 Phương pháp thực nghiệm sư phạm 63 3 .3 .1 Chọn mẫu . 63 3 .3 .2 Phương ... khóa học .44 2.4 .3 Xây dựng phần thứ nhất: Chuyển động học .45 2.4.4 Xây dựng phần thứ hai: Mechanical Motion 48 2.4. 5 Xây dựng phần thứ ba: Hỗ trợ học tập .49 2. 5 Sử dụng lớp...
... f (2) = is defined and x2 − x − ( x − 2) ( x + 1) lim f ( x) = lim = lim x 2 x 2 x 2 x 2 x 2 = lim( x + 1) = x 2 exists But lim f ( x) ≠ f (2) x 2 So, f is not continuous at 1. 5 P15 Example 2( d) ... x − (a) f ( x) = x 21 if x ≠ f ( x) = x (b) 1 if x = x2 − x − if x ≠ (c) f ( x) = x − 1 if x = (d) f ( x) x 1. 5 P 12 Example 2( a) SOLUTION Notice that f (2) is not defined ... − − x ) x →a x→a =1 − lim − x x →a (by Laws and 7) =1 − lim (1 − x ) (by Law 11 ) x →a = − − a2 = f (a ) (by Laws 2, 7, and 9) 1. 5 P 24 Example SOLUTION Thus, by Definition 1, f is continuous...
... the equation of the graph as: y = x2 + 6x + 10 = (x + 3 )2 + TRANSFORMATIONS Example This means we obtain the desired graph by starting with the parabola y = x2 and shifting units to the left ... the graph of y = sin 2x from that of y = sin x by compressing horizontally by a factor of Thus, whereas the period of y = sin x is 2 , the period of y = sin 2x is 2 /2 =π TRANSFORMATIONS ... TRANSFORMATIONS Example Given the graph of y = x , use transformations to graph: a b c d e y= x 2 y = x 2 y=− x y =2 x y = −x TRANSFORMATIONS Example The graph of the square root function y = x is shown...
... 2 Ex 12 . 10 – What is the molar mass of a protein if 5.87 mg per 10 mL gives an osmotic pressure of 2. 45 torr at 25 °C? Given: 5.87 mg /10 mL, P = 2. 45 torr, T = 25 °C Find: molar ... mL 0.0 01 L mL L mol protein mol = M × L Relationships: Π=MRT, T(K)=T(°C) +27 3 .15 , R= 0.0 820 6atm∙L/mol∙K M = mol/L, mL = 0.0 01 L, MM = g/mol, atm = 760 torr Solve: MM = 5.87 10 3 g 1. 31 8 10 −6 ... the nonpolar tail tends to coagulate together to form a spherical structure called a micelle 11 12 Soap Action • most dirt and grease is made of nonpolar molecules – • • making it hard for water...
... Water 41 8 6 Ice 20 90 0.50 Steam 2 010 0 .48 Silver 23 4 0.056 Aluminum 900 0. 21 5 Copper 38 7 0.0 9 24 Gold 12 9 0. 030 8 Iron 44 8 0 .10 7 Lead 12 8 0. 030 5 Brass 38 0 0.0 92 Glass 837 0 .20 0 Wood 17 00 0. 41 Ethyl ... hemispheres Example 12 0 lb woman putting all her weight on 2in2 of heals Pressure = 12 0 lb/2in2 = 60 lb/in2 Is that a lot? Comparison: atm = 14 .7 lb/in2 Thus of heals is approximately ... temperature of kg of water and kg of iron 20 °C? Q = mC∆T For Water Q = ( 10 00 g)(1cal / g C ) (20 C ) = 20 ,000cal oo For Iron Q = ( 10 00 g)(0 .10 7cal / g oC ) (20 o C ) = 21 4 0cal Heat Transfer Mechanisms...
... are shown below α/° 10 12 14 16 WMP/Jun10/PHA3/B3/XTN D/mm 0.0855 0.0 42 8 0. 028 5 0.0 21 4 0. 017 1 0. 0 14 3 0. 0 122 0. 010 7 21 Do not write outside the box The student intends to view the Moiré fringes ... = 3. 0 × 10 m, the student uses this equation in a spreadsheet to find D for values of α up to 16 ° The student’s results are shown below α/° 10 12 14 16 WMP/Jun10/PHA3/B3/XTN D/mm 0.0855 0.0 42 8 ... WMP/Jun10/PHA3/B3/XTN 10 1 10 10 1 10 Insert 1, to be removed and then glued to the card; this provides a mm scale against which candidates may view the diffracted images of the slit WMP/Jun10/PHA3/B3/XTN...
... have completed these measurements θ/° V / mV θ/° V / mV θ/° 20 14 0 26 0 40 16 0 28 0 60 18 0 30 0 80 20 0 32 0 10 0 22 0 34 0 12 0 24 0 36 0 V / mV (1 mark) (b) Adding a suitable scale to the vertical axis, ... (3 marks) WMP/Jun 11/ PHA6/B6/XPM1 θ /° V / mV 40 80 12 0 16 0 20 0 24 0 28 0 32 0 36 0 Do not write outside the box Question continues on the next page WMP/Jun 11/ PHA6/B6/XPM1 Turn over ᮣ 10 (d) ... (3 marks) END OF SECTION A PART WMP/Jun 11/ PHA6/B6/XPM1 11 There are no questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED WMP/Jun 11/ PHA6/B6/XPM1 12 There...
... filter F2 11 20 40 32 34 0 Template 60 30 0 circular scale 28 0 80 26 0 10 0 12 0 24 circular scale 0 14 22 16 0 18 0 20 0 Turn over ᮣ WMP/Jun 11/ PHA6/B6/XTN 12 Section A Do not write outside the box Part 1 ... Part 2, whereas candidates’ copies of Section A Part should not be made available to them Turn over ᮣ WMP/Jun 11/ PHA6/B6/XTN 10 Template filter F2 filter F2 notch WMP/Jun 11/ PHA6/B6/XTN filter F2 ... amplitude of the pendulum after n oscillations n An / cm 30 .0 An / cm mean An / cm 30 .0 30 .0 10 20 30 Determine the mean value of An after 10 , 20 and 30 oscillations of the pendulum Record these data...
... Fig .1 the angle that is needed to avoid a collision, is α sin α = 3, 5 / 12 , 5 = 0, 28 , α = 16 ,30 In Fig .2 the maximum angle of deflection that is possible is β sin β = 30 0 /10 00 = 0 ,33 , β = 15 ,50 ... image: 112 ( n − 1) 2n − = + + = + = + = a b2 f1 f f1 f1 f R R R When the hiker turns, the rays from the object passing through the lens also form a virtual image: 1 n 1 − = = a b3 f1 R 5 ... little rearrangemant, obtaining(đạt được) : v2 R = sin 2 ( 2) g Rg 560.9,8 = 0, 816 → θ = 27 and θ = 630 Soving Eq (2) for θ yields(giá trị) → sin 2 = = v0 82 The commandent of the fort can elevate...
... S1, S2 c) Để mắt vùng nhìn thấy đồng thời ảnh hai điểm sáng gơng ? ///////////////////////////////////// Ghạch chéo vùng ? 9 /25 /2 0 13 20 : 13 4 -19 97 Th n h Đạt Trơng Thành Đạt 2- 9 /25 /2 0 13 20 : 13 ... Ving = What about+Ving 9 /25 /2 0 13 20 : 13 4 -19 97 Th n h Đạt Trơng Thành Đạt 2- 9 /25 /2 0 13 20 : 13 hỏi trả lời khoảng cách : How far is it from + N(placel1) + to + N(placel2)? Its about + distace Hỏi ... 9 /25 /2 0 13 20 : 13 11 Vì nói chiện với gần ao hồ , tiếng nói nghe rõ ? 12 . Có bể chứa nớc , bể có nắp...
... Figure 3 . 13 can be replaced by Figure 3 . 14 a) The impedance of the circuit: Z= U 12 7 = = 63. 5Ω I b) As Z2 = (RL + R )2 + ω2L2, RL + R = R= Z2 − 2 L2 Z2 − 2 L2 – RL = 63. 52 − (10 0π )2 0.0 52 – = ... amplitudes A1, A2 as well as initial phases 1 , 2 x1 = A1sin(ωt + 1) (1- 22 ) x2 = A2sin(ωt + 2) (1- 23 ) The resultant motion is the combination of two components (1- 22 ) and (1- 23 ) The Fresnel’s ... are also 12 0 degrees out of phase The equations can be as follow: i1 = I0sinωt Translated by VNNTU – Dec 20 01 (3 -28 ) Page 43 i2 = I0sin(ωt i3 = I0sin(ωt + 2 ) 2 ) (3 -29 ) (3- 30) Figure 3 .19 show...
... PHYS 125 E 2b 40 40 12 0 Cơ sở vật lí PHYS 2 24 E 40 40 12 0 Cơ sở vật lí PHYS 225 E 4 40 40 12 0 Cơ sở vật lí PHYS 31 4 E 40 40 22 23 24 25 26 12 0 26 Các học phần thực hành Học Mã TT Tên học phần kỳ học phần ... ENGL102P 35 10 15 12 0 Tiếng Anh ENGL103P 35 10 15 12 0 Tiếng Anh ENGL201P 35 10 15 12 0 Tiếng Anh ENGL202P 25 11 90 10 Tiếng Anh ENGL203P 2b 25 11 90 11 Tiếng Anh ENGL204P 3 25 11 90 21 Tiếng Anh cho ... ENGLP1 01 24 12 24 60 Toán Lý: đvht Mã TT Tên học phần Số Học Tín kỳ học phần Tự học Chỉ Lên lớp Toán cao cấp MATH101P 17 Toán cao cấp MATH102P 2b PHYS 1 23 E 2b Toán cho Vật lí PHYS 2 23 E 22 12 0 20 10 ...