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Problem 4-Which of the following statements about Cauchy momentum equation and Navier Stokes equation are true?...
Tutorial 2. Incompressible Navier-Stokes equations 18 September, 4-5 pm in FN2 In Lecture Notes 1 the Navier-Stokes equ...
Tutorial 2. Incompressible Navier-Stokes equations 18 September, 4-5 pm in FN2 In Lecture Notes 1 the Navier-Stokes equations (momentum balance) for incompressible flow were derived. They were eventually written in the following form dr In this equation, the viscosity μ and the density ρ are constants. We now consider two simple flow configurations. Config. 1. The steady state flow of a liquid in the space between two very large static parallel plates at distance H of each other in the...
Problem 4. In class we introduced the concept of a Newtonian fluid. A Newtonian Fluid is...
Problem 4. In class we introduced the concept of a Newtonian fluid. A Newtonian Fluid is one in which the stress and strain rate relationship is linear and related by the fluid viscosity. Answer the following equations about Newtonian and Non-Newtonian fluid models. a) With a Newtonian Model, indicate what the shear forces are on the x-face of a fluid element. b) With a Newtonian Incompressible Model, indicate what the normal force is on the x-face of a fluid element—show...
(1 P) Q1. Answer following multiple choice questions (A) The equation for change of momentum is...
(1 P) Q1. Answer following multiple choice questions (A) The equation for change of momentum is a) 4 (MT) - F41 b) A (ma) - F41 c) 4 (mV) - F41 d) 4 (mV)=F1 (B) Water flowing in a fire hose exits through a nozzle into atmosphere as shown in the figure below. Which of the following statements is true for the force exerted by the fluid on the nozzle? a) Fy - PA + PQ (V)-V1) b) - Fy...
*21. Which of the following statements is not true about variation of friction factor, f, in...
*21. Which of the following statements is not true about variation of friction factor, f, in a circular pipe? f is inversely proportional to Reynolds number, Re, in laminar flow b. a. fis independent of Re at very large Re. fis zero for laminar flow for perfectly smooth pipe surface c. fis proportional to the pressure loss d 22. A Newtonian fluid is contained in the annulus between two concentric cylinders. The inner cylinder is rotated while the outer cylinder...
4 pts Question 1 Which of these statements is TRUE for perfectly elastic collision? OOnly momentum...
4 pts Question 1 Which of these statements is TRUE for perfectly elastic collision? OOnly momentum is conserved OBoth momentum and Kinetic energy are conserved OOnly kinetic energy is conserved None of the above Question 2 4 pts Which of these statement is TRUE for a perfectly inelastic collision? Only momentum is conserved None of the above Only Kinetic energy is conserved Both momentum and Kinetic energy are conserved
4. An incompressible fluid with viscosity u and density p was contained in pipe of length...
4. An incompressible fluid with viscosity u and density p was contained in pipe of length L and radius R. Initially the fluid is in rest. At t=0, a pressure difference of AP is applied across the pipe length which induces the fluid flow in axial direction (V2) Only varies with time (t) and pipe radius (r). There is no effect of gravity. To describe the fluid flow characteristics, after the pressure gradient is applied, answer the following questions: a)...
which of the following statements about the quantum- mechanical model of atoms is true? a. not...
which of the following statements about the quantum- mechanical model of atoms is true? a. not only did the bohr model correctly describe the hydrogen atom and its line spectra, but it also perfectly described more complicated multielectron atoms b. multiple measurements of the position of hydrogens electron, when its in the ground state, find a range of values, but on average, it is located at a distance of one bohr radius from the proton c. there are multiple values...
which statement is true about momentum? Momentum is a vector quantity Momentum equals the mass times...
which statement is true about momentum? Momentum is a vector quantity Momentum equals the mass times the velocity The units of momentum of kg-m/s All of the above The total momentum of a group of objects remains the same except.... During a collision If they are acted on by an outside force If one obkect is more than 10 times the size of the other All of the above In doing this experiment, it is important to make sure.. The...
Problem 2 CE 315-Quiz 4-Spring 2018 Name: Student ID #: Problem 1 (15 points) Which of...
Problem 2
CE 315-Quiz 4-Spring 2018 Name: Student ID #: Problem 1 (15 points) Which of the following are true (select all that apply). (a) The momentum equation is derived from a particle along a streamline (b) For Reynolds Transport Theorem the closed system is the same as the control volume (c) §VdA represents the volume flow rate crossing the control surface (d) For the analogy used in lecture of the marching band (for the Reynolds Transport Theorem), the CY...
FLUID o True False 1 pts Question 3 Which of the following statements about MEIOSIS are...
FLUID o True False 1 pts Question 3 Which of the following statements about MEIOSIS are CORRECT? Only haploid cells are produced Sister chromatids are separated during anaphase I and homologous chromosomes are separated during anaphase II After crossing over (recombination) the sister chromatids are still identical There are two rounds of cell division following only one round of DNA synthesis non-disjunction can occur during either anaphase I or Il 1 pts Question 4
Tutorial 2. Incompressible Navier-Stokes equations 18 September, 4-5 pm in FN2 In Lecture Notes 1 the Navier-Stokes equations (momentum balance) for incompressible flow were derived. They were eventually written in the following form dr In this equation, the viscosity μ and the density ρ are constants. We now consider two simple flow configurations. Config. 1. The steady state flow of a liquid in the space between two very large static parallel plates at distance H of each other in the...
(1 P) Q1. Answer following multiple choice questions (A) The equation for change of momentum is a) 4 (MT) - F41 b) A (ma) - F41 c) 4 (mV) - F41 d) 4 (mV)=F1 (B) Water flowing in a fire hose exits through a nozzle into atmosphere as shown in the figure below. Which of the following statements is true for the force exerted by the fluid on the nozzle? a) Fy - PA + PQ (V)-V1) b) - Fy...
*21. Which of the following statements is not true about variation of friction factor, f, in a circular pipe? f is inversely proportional to Reynolds number, Re, in laminar flow b. a. fis independent of Re at very large Re. fis zero for laminar flow for perfectly smooth pipe surface c. fis proportional to the pressure loss d 22. A Newtonian fluid is contained in the annulus between two concentric cylinders. The inner cylinder is rotated while the outer cylinder...
4 pts Question 1 Which of these statements is TRUE for perfectly elastic collision? OOnly momentum is conserved OBoth momentum and Kinetic energy are conserved OOnly kinetic energy is conserved None of the above Question 2 4 pts Which of these statement is TRUE for a perfectly inelastic collision? Only momentum is conserved None of the above Only Kinetic energy is conserved Both momentum and Kinetic energy are conserved
4. An incompressible fluid with viscosity u and density p was contained in pipe of length L and radius R. Initially the fluid is in rest. At t=0, a pressure difference of AP is applied across the pipe length which induces the fluid flow in axial direction (V2) Only varies with time (t) and pipe radius (r). There is no effect of gravity. To describe the fluid flow characteristics, after the pressure gradient is applied, answer the following questions: a)...
Problem 2
CE 315-Quiz 4-Spring 2018 Name: Student ID #: Problem 1 (15 points) Which of the following are true (select all that apply). (a) The momentum equation is derived from a particle along a streamline (b) For Reynolds Transport Theorem the closed system is the same as the control volume (c) §VdA represents the volume flow rate crossing the control surface (d) For the analogy used in lecture of the marching band (for the Reynolds Transport Theorem), the CY...
FLUID o True False 1 pts Question 3 Which of the following statements about MEIOSIS are CORRECT? Only haploid cells are produced Sister chromatids are separated during anaphase I and homologous chromosomes are separated during anaphase II After crossing over (recombination) the sister chromatids are still identical There are two rounds of cell division following only one round of DNA synthesis non-disjunction can occur during either anaphase I or Il 1 pts Question 4
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