For a steady 2-D flowfield the trajectory of a single particle CANNOT form a
(A) Pathline
(B) Streakline
(C) Streamline
(D) Timeline
Answer: Streamline, streamline and pathline are field lines in a fluid flow. They differ only when the flow changes with time, taht is , when the flow is not steady.
So the answer is option (D)
For a steady 2-D flowfield the trajectory of a single particle CANNOT form a (A) Pathline...
For a steady 2-D flowfield the gap between these lines divided by incremental time indicates the local velocity. (A) Pathline (B) Streakline (C) Streamline (D) Timeline
Q3. (2 marks) At time = 0, a particle at point A travelling in a fluid would follow the path AB in the diagram below, but halfway between point A and B in its journey, the flow changes and the particle is directed to point Cinstead. a) The path that the particle actually travelled between A and C is called what (according to the textbook notes that you were referred to in class)? Pathline b) At time = 0, the...
Trajectory Problem 1 1. A particle A , of mass m, is acted on by the gravitational force from a second particle, B, which remains fixed at the origin. Initially, when A is very far from B(r - o0). A has a velocity vo directed along the line shown in the figure. The perpendicular distance between B and this line is D. The particle A is deflected from the figure. The shortest distance between this trajectory and B is found...
2.A single particle has energy levels 0, ?,-?, 2 ?, and-2? a) Write the single particle partition function, z. b) Write the canonical partition function, Z, for an c) Write the probability P, for the particle to have d) At T-0.1 &/kB, calculate P, for the particle to have e) Calculate the average energy of an assembly of N assembly of N such particles. energy 0, e,-?,2?, or-2e. energy of 0 and e. particles at very high temperatures
The equation of motion of a particle is described by: OM t-1+(2)1 Determine the equation of trajectory of the particle and plot it on an xy coordinate system. a) b) At which point the motion starts. c) Determine the velocity vector and the acceleration vector of the particle in function of t d) Determine the tangential acceleration, the normal acceleration, and the radius of curvature in function of t. Is this a central acceleration, why or why not? At what...
According to the given equations of motion of the particle M determine the type of trajectory and for a moment of time t=t_1, find its position on the trajectory, its velocity , total tangential and normal acceleration , and a radius of the trajectory curvature. a) X=-2t^2+3,(cm), Y=-5t(cm) , t_1=0.5(s) b) X=-3/(t+2), Y=3t+6, t_1=2
1. To model a gasoline spill in a river, emergency responders measure the speed of the leading edge of the spill, while engineers set up a computer model that simulates the velocity field for the entire river. Which of the following is true? a. The emergency responders are using an Eulerian approach and the engineers are using a Lagrangian one. b. The emergency responders are using a Lagranglan approach and the engineers are using an Eulerian one c. Both are...
Problem 2: Consider a LSPB trajectory of the following form 0 stst 4o (a) Determine the LSPB trajectory that will satisfy the following constraints: to 0 (second) t 2 (second) q(tr)--20° V-# 15 (deg/sec) (b) Also find the position, velocity, and acceleration when t 1 (second) (c) Sketch both the trajectory and velocity profiles.
Problem 2: Consider a LSPB trajectory of the following form 0 stst 4o (a) Determine the LSPB trajectory that will satisfy the following constraints: to 0...
According to the Heisenberg uncertainty principle, a) the position of a particle cannot be measured precisely. b) neither the position nor the momentum of a particle can be measured precisely. c) the momentum of a particle cannot be measured precisely. d) the position and momentum of a particle can be measured precisely, but not at the same time.