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4. (a) (i) For a pump what is the mathematical formula for the Net Positive Section...
1- Calculate the net positive suction head (NPSH) of the pump using the following data. i) - Vapo...
1- Calculate the net positive suction head (NPSH) of the pump using the following data. i) - Vapor pressure of liquid -2.685 x 104 Pa i) - Distance between the level of liquid in the reservoir and suction line 1.2 m. The pump is above the liquid level. ii) -The density of liquid 865 kg/m3 iv)- Friction in the suction line 3.5 J/kg v) - Reservoir is open to atmosphere 2- Liquid octane shall be drawn from an open suction...
how to determine either it is electron capture or beta positive? The atomic mass of İ.Mgis...
how to determine either it is electron capture or beta
positive?
The atomic mass of İ.Mgis 24.985837 u and the atomic mass of s Al is 24.990429 u. i. Which of these nuclei will decay into the other? (2 Marks) ii. What type of decay will occur and explain how do you determine this? (4 Marks) ii. How much energy (in MeV) is released in the decay (8 Marks)
Section C Q.C7 (a) What are the advantages of Resin Transfer Infusion (RTI) over traditional composite manufacturing technologies? (9 marks) (b) Describe FOUR advantages of composites over metallics...
Section C Q.C7 (a) What are the advantages of Resin Transfer Infusion (RTI) over traditional composite manufacturing technologies? (9 marks) (b) Describe FOUR advantages of composites over metallics and why. (4 marks) (c Wittait aares i it, calment R822R31e夗sel ptrranwal lii II ADOlies @311 ilisaligg C131ǐURSX multi-axial reinforcements, such as 3D weaving, and discuss how these might be alleviated? tmark)
Section C Q.C7 (a) What are the advantages of Resin Transfer Infusion (RTI) over traditional composite manufacturing technologies? (9 marks)...
Question 4 (a) 2-Pentanone undergoes photolysis reaction giving propanone and ethene. (i) Write a...
Question 4 (a) 2-Pentanone undergoes photolysis reaction giving propanone and ethene. (i) Write an equation for the photolysis reaction using display formulae (i) Suggest a suitable transition state of the reaction. Explain your reasonings (ii) Draw the energy profile of the reaction showing the activation energy (kJ/mol) and enthalpy change (k]/mol), given: Electronic energy (Hartree) BLYP/3-21G/gas phase 2-Pentanone-271.793501 ropanone -271.697234 Ethene 271.737789 [1 Hartree- 2625.5 kJ/mol] (iv) Describe how the chalcogen effect may be studied for this reaction. 2, 3,...
4. a) Discuss the RESET Test. Be sure to include the following elements in your discussion: i) Pu...
4. a) Discuss the RESET Test. Be sure to include the following elements in your discussion: i) Purpose ii) Detailed instructions as to practical implementation (state the null and alternative hypotheses, give the formula for the test statistic, etc.) i) A suitable STATA sub-program from which the test-statistic may be calculated or obtained iv) Interpretation of the test result:s v) Implications of the test results for further econometric investigation b) Discuss how you might get the "wrong sign" in an...
please answer all questions O The Hong Kong Polytechnic University Section A 1. (a) A digital thermometer is designed to measure temperature ranging from 20°C to 45°c. 0) Describe the two steps in...
please answer all questions
O The Hong Kong Polytechnic University Section A 1. (a) A digital thermometer is designed to measure temperature ranging from 20°C to 45°c. 0) Describe the two steps involved in the digitization of analog signals (4 marks) (i) If the quantization error is required to be less than O. I C, how many bits are required to encode the temperature readings? (4 marks) (ii)What is the temperature reading of 26.S°C in binary form after the digitization?...
Consider the following beam, under the effect of 4 forces: i. Calculate the torque net. (4...
Consider the following beam, under the effect of 4 forces: i. Calculate the torque net. (4 marks) ii. If you want to cancel the effect of this last torque, what force should be applied (Magnitude, direction, distance from pivot and angle). (2 marks) F1 = 20 N F3 = 5 N 40° 2 m Pivot (0) 60° 1.5 m * 1.0 m F = 10 N F2 = 15 N
Please answer physics lab questions SECTION: DATE: ANALYSIS PARTI: POSITION VS. TIME GRAPH MATCHING I. Describe...
Please answer physics lab questions
SECTION: DATE: ANALYSIS PARTI: POSITION VS. TIME GRAPH MATCHING I. Describe how you walked for each of the graphs that you matched. When the aph hada honit. period wedid net mare wiun the crapん1ad a linlan perod we moved but at o constan sperd Explain the significance of the slope of a position vs. time graph. Include a discussion of positive 2. and negative slope. 3. What type of motion is occurring when the slope...
QUESTION 4 a) What is meant by critical region and significance level in hypothesis testing? (2...
QUESTION 4 a) What is meant by critical region and significance level in hypothesis testing? (2 marks) b) A random sample X1, X2...., X, of size n is obtained from a normal distribution with mean, u and variance, 81. We are interested to test Ho : 4 = 100 against H, : x = 104. 1) Show that a best critical region according to Neyman-Pearson lemma is 82c. (8 marks) ii) Find the sample size, n given that the significance...
Q.4 (a) Write down the formula that relates the object and image distance to the focal...
Q.4 (a) Write down the formula that relates the object and image distance to the focal length for a concave, spherical mirror and identify all terms used. [4 marks] (b) Define the terms paraxial ray and spherical aberration of a concave mirror. How can the shape of the mirror be adjusted to eliminate this aberration? [3 marks] (c) A certain concave spherical mirror has a radius of curvature of 10.0 cm. A box with height of 3.0 cm is located...
1- Calculate the net positive suction head (NPSH) of the pump using the following data. i) - Vapor pressure of liquid -2.685 x 104 Pa i) - Distance between the level of liquid in the reservoir and suction line 1.2 m. The pump is above the liquid level. ii) -The density of liquid 865 kg/m3 iv)- Friction in the suction line 3.5 J/kg v) - Reservoir is open to atmosphere 2- Liquid octane shall be drawn from an open suction...
how to determine either it is electron capture or beta
positive?
The atomic mass of İ.Mgis 24.985837 u and the atomic mass of s Al is 24.990429 u. i. Which of these nuclei will decay into the other? (2 Marks) ii. What type of decay will occur and explain how do you determine this? (4 Marks) ii. How much energy (in MeV) is released in the decay (8 Marks)
Section C Q.C7 (a) What are the advantages of Resin Transfer Infusion (RTI) over traditional composite manufacturing technologies? (9 marks) (b) Describe FOUR advantages of composites over metallics and why. (4 marks) (c Wittait aares i it, calment R822R31e夗sel ptrranwal lii II ADOlies @311 ilisaligg C131ǐURSX multi-axial reinforcements, such as 3D weaving, and discuss how these might be alleviated? tmark)
Section C Q.C7 (a) What are the advantages of Resin Transfer Infusion (RTI) over traditional composite manufacturing technologies? (9 marks)...
Question 4 (a) 2-Pentanone undergoes photolysis reaction giving propanone and ethene. (i) Write an equation for the photolysis reaction using display formulae (i) Suggest a suitable transition state of the reaction. Explain your reasonings (ii) Draw the energy profile of the reaction showing the activation energy (kJ/mol) and enthalpy change (k]/mol), given: Electronic energy (Hartree) BLYP/3-21G/gas phase 2-Pentanone-271.793501 ropanone -271.697234 Ethene 271.737789 [1 Hartree- 2625.5 kJ/mol] (iv) Describe how the chalcogen effect may be studied for this reaction. 2, 3,...
4. a) Discuss the RESET Test. Be sure to include the following elements in your discussion: i) Purpose ii) Detailed instructions as to practical implementation (state the null and alternative hypotheses, give the formula for the test statistic, etc.) i) A suitable STATA sub-program from which the test-statistic may be calculated or obtained iv) Interpretation of the test result:s v) Implications of the test results for further econometric investigation b) Discuss how you might get the "wrong sign" in an...
please answer all questions
O The Hong Kong Polytechnic University Section A 1. (a) A digital thermometer is designed to measure temperature ranging from 20°C to 45°c. 0) Describe the two steps involved in the digitization of analog signals (4 marks) (i) If the quantization error is required to be less than O. I C, how many bits are required to encode the temperature readings? (4 marks) (ii)What is the temperature reading of 26.S°C in binary form after the digitization?...
Consider the following beam, under the effect of 4 forces: i. Calculate the torque net. (4 marks) ii. If you want to cancel the effect of this last torque, what force should be applied (Magnitude, direction, distance from pivot and angle). (2 marks) F1 = 20 N F3 = 5 N 40° 2 m Pivot (0) 60° 1.5 m * 1.0 m F = 10 N F2 = 15 N
Please answer physics lab questions
SECTION: DATE: ANALYSIS PARTI: POSITION VS. TIME GRAPH MATCHING I. Describe how you walked for each of the graphs that you matched. When the aph hada honit. period wedid net mare wiun the crapん1ad a linlan perod we moved but at o constan sperd Explain the significance of the slope of a position vs. time graph. Include a discussion of positive 2. and negative slope. 3. What type of motion is occurring when the slope...
QUESTION 4 a) What is meant by critical region and significance level in hypothesis testing? (2 marks) b) A random sample X1, X2...., X, of size n is obtained from a normal distribution with mean, u and variance, 81. We are interested to test Ho : 4 = 100 against H, : x = 104. 1) Show that a best critical region according to Neyman-Pearson lemma is 82c. (8 marks) ii) Find the sample size, n given that the significance...
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