Homework Answers
Answer - True.
The sum of pressure head - p / γ - and elevation head - h - is called the piezometric head. The piezometric head in a flow can be measured through an flat opening parallel to the flow.
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Piezometric pressure will be constant along a line that is normal to straight and parallel streamlines,...
estion 14 Piezometric pressure will be constant along a line that is normal to straight and...
estion 14 Piezometric pressure will be constant along a line that is normal to straight and parallel streamlines, True False
Drag force is parallel and in the same direction of the free stream velocity.
Question 1 Drag force is parallel and in the same direction of the free stream velocity. True False Question 6 In a fully developed flow, the flow profile remains unchanged in the streamwise direction. TrueQuestion 13 Piezometric pressure will be constant along a line that is normal to straight and parallel streamlines, True False
The difference of momentum entering and exiting a control volume at multiple locations when the streamlines are normal to the control surface and parallel is not equal to the sum of the external force...
The difference of momentum entering and exiting a control volume at multiple locations when the streamlines are normal to the control surface and parallel is not equal to the sum of the external forces. True or False? The force of the weight of a fluid on a pipe bend can be neglected from the resultant force calculation if the bend is in the horizontal plane. True or false? What is the minimum set of values that must be known to...
Calculate the average value of the electric field along the straight line between the two parallel...
Calculate the average value of the electric field along the straight line between the two parallel line charges by dividing the difference in the magnitude of the voltages at the two parallel lines by the displacement between them. Then take the % difference between your two values for the average electric field between the parallel line charges. (10 points) Two Parallel Line Charge Configuration Vi (V) Xi (m) E (V/m) 114.5 0.5 63.1 1 102.8 36.4 1.5 53.4 16.6 2...
For an object moving along a straight line, in order to return to its starting point...
For an object moving along a straight line, in order to return to its starting point it does not necessarily have a speed of zero during the time lapse of its motion. True/False
A person walks first at a constant speed of 4.50 m/s along a straight line from...
A person walks first at a constant speed of 4.50 m/s along a straight line from point to point Band then back along the line from to at a constant speed of 3.15 m/s (a) What is her average speed over the entire trip? m/s (b) What is her average velocity over the entire trip? m/s
A car travels along a straight line at a constant speed of 53.0 mi/h for a...
A car travels along a straight line at a constant speed of 53.0 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 31.0 mi/h what the constant speed with which the car moved during the second distance d? suppose the second distance d were traveled in the opposite direction: you forgot something and had to return home at the same constant speed as...
3.) A jet plane is flying with a constant speed along a straight line at an...
3.) A jet plane is flying with a constant speed along a straight line at an angle of 30° above the horizontal. The plane has a weight W of magnitude 86500 N and its engines provide a forward thrust T of magnitude 103000 N. In addition, the lift force L (directed upwards perpendicular to the wings) and the force R of air resistance (directed opposite the motion) act on the plane. Find L and R. [L = 74900 N; R=...
(ii)(a) An object is moving with constant acceleration in 1D (along a straight line), what is...
(ii)(a) An object is moving with constant acceleration in 1D (along a straight line), what is its position x(t) as a function of time, given its initial position xo, initial velocity vo and acceleration a? (b) How do you derive its velocity as a function of time from x(t)? (c) Why is the funciton of x(t) the key for predicting eclipses and hurricanes?
A car travels along a straight line at a constant speed of 56.0 mi/h for a...
A car travels along a straight line at a constant speed of 56.0 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 27.0 mi/h. (a) What is the constant speed with which the car moved during the second distance d? mi/h (b) Suppose the second distance d were traveled in the opposite direction; you forgot something and had to return home at the...
estion 14 Piezometric pressure will be constant along a line that is normal to straight and parallel streamlines, True False
A person walks first at a constant speed of 4.50 m/s along a straight line from point to point Band then back along the line from to at a constant speed of 3.15 m/s (a) What is her average speed over the entire trip? m/s (b) What is her average velocity over the entire trip? m/s
A car travels along a straight line at a constant speed of 53.0 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 31.0 mi/h what the constant speed with which the car moved during the second distance d? suppose the second distance d were traveled in the opposite direction: you forgot something and had to return home at the same constant speed as...
3.) A jet plane is flying with a constant speed along a straight line at an angle of 30° above the horizontal. The plane has a weight W of magnitude 86500 N and its engines provide a forward thrust T of magnitude 103000 N. In addition, the lift force L (directed upwards perpendicular to the wings) and the force R of air resistance (directed opposite the motion) act on the plane. Find L and R. [L = 74900 N; R=...
(ii)(a) An object is moving with constant acceleration in 1D (along a straight line), what is its position x(t) as a function of time, given its initial position xo, initial velocity vo and acceleration a? (b) How do you derive its velocity as a function of time from x(t)? (c) Why is the funciton of x(t) the key for predicting eclipses and hurricanes?
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