Purchase Solution

Fluid Mechanics: Static and Dynamic Pressures

Not what you're looking for?

Ask Custom Question

1. A laboratory receives a sample of a metallic alloy composed of aluminum and magnesium. The sample is a solid cylinder with a diameter of 2 cm and a length of 5 cm. Its mass is 15.70 g. What is its density? What is its specific gravity?

2. A boat has a dry weight of 3500 lbs. How many liters of water does it displace?

3. A steel pipe runs vertically from the floor of the ocean to the surface. The pipe is empty -- that is, contains air at atmospheric pressure . What is the water pressure on the pipe 200 m below the surface? At that point, what is the force on 1 cm^2 of the pipe wall? (Density of seawater = 1.03 kg/L)

4. Water is flowing through a circular pipe with an internal diameter of 1 meter, at a rate of 0.5 m3/s. What is the water's flow velocity? What is its dynamic pressure?

5. The static water pressure at point 1 in a pipe is 100 kPa, and the fluid velocity is 2 m/s. At point 2 downstream, the pipe widens and the velocity decreases to 1 m/s. What is the static pressure at that point? The usual assumptions concerning laminar flow, no friction losses, incompressibility, etc. all apply.

Purchase this Solution

Solution Summary

The expert examines static and dynamic pressures for fluid mechanics.

Solution Preview

1. density = mass/volume = m/(pi*r^2*l) = 15.70/(3.1415*1^2*5) = 1.00 g/cm^3
specific gravity = density of this sample/density of water = 1.00/1.00 = 1

2. F = mg = density*volume*g, volume = m/density = ...

Purchase this Solution

Free BrainMass Quizzes
Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

The Moon

Test your knowledge of moon phases and movement.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Basic Physics

This quiz will test your knowledge about basic Physics.