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# Fluid Mechanics

### Fluid Dynamics and Bernoulli's Equation Problem

A SCUBA diver descends to 30 meters underwater: (a) Write an algebraic expression for the total pressure on the diver at that point and define the various quantities. (b) Calculate the pressure in atmospheres.

### Determining the Fluid Dynamics and Bernoulli's Equation

The gauge pressure in a garden hose is 2.0 atmospheres. If the cross-sectional area of the hose is 4.0 cm^2 and the nozzle output area is 0.4 cm^2(cm^2= 10^-4m^2): (a) How fast does the water leave the hose? (b) If the hose is held parallel to the ground and is 1.0 m above the ground, how far out will it travel before it hits

### Fluid Dynamics & Bernoulli's Equation

Imagine a round container with 4 water spouts at the heights of 10 cm, 20 cm, 30 cm, and 40 cm. The water level is maintained at a 45 cm height by an outside supply. (a) What is the speed of the water out of each hole? (b) Which water stream has the greatest range relative to the base of the container? Justify the answer.

### Solving for Volume

Question: Given that we have 1200 cm^3 of helium at 15 degrees Celsius and 99kPa, what will be its volume at STP?

### Geometric Planes and Lines are included.

How do architects and designers effectively incorporate geometic planes and lines to create living designs? REsources are also included.

### Fluid Mechanics: U Tubes

A U tube open at both ends is partially filled with water. Oil having a density of 750 kg/cubic meter is then poured into the right arm and forms a column L = 5.00 cm high. (a) Determine the difference h in the heights of the two liquid surfaces. The right arm is then shielded from any air motion while air is blown across the

### Fluid Mechanics of a Shock Wave

When a body is travelling faster than the local speed of sound, often a shock wave is created. Describe the physical causes of such a shock wave. (See attachment for full question)

### Fluid Mechanics: Energy Equation For Compressible Gas

Assume that the energy equation for a compressible gas can be written as:... Explain the meaning and units of the terms H,V,z,Q and W in this equation. (See attachment for the rest of the question)

### Problem 15.41

Please do not include your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: A U-shaped tube, open to the air on both ends, contains mercury. Water is poured into the left arm until the water column is 13.1 cm deep. How far upward from its initial position does the mercury i

### Mass and Buoyancy of Wood and Iron

Taking buoyancy of air into account, which has the greater mass: A large block of wood or a smaller block of iron on weighing scales and both having the same weight- 1 ton?

### Fluid Dynamics

During each heartbeat, approximately 70cm³ is pushed from the heart at an average pressure of 105mm-Hg. Calculate the power output of the heart, in watts, assuming 70 beats per minute. *please explain this as simply as possible- thanks so much :)

### Fluid Dynamics

If wind blows at 25m/s over your house, what is the net force on the roof if its area is 240m² and is flat?

### Fluid Dynamics

What gauge pressure in the water mains is necessary if a firehose is to spray water to a height of 15m?

### Fluid Dynamics

A 5/8 inch (inside) diameter garden hose is used to fill a round swimming pool 6.1m in diameter. How long will it take to fill the pool to a depth of 1.2m if water issues from the hose at a speed of 0.33m/s? *note- please explain this in the simplest way possible if you can! thank you :)

### Fluid Statics

A 3.15kg piece of wood (SG= .50) floats on water. What minimum mass of lead, hung from it by a string, will cause it to sink? *note- please explain this in the simplest way possible if you can! thank you :)

### Fluid Statics

If you tried to nonchalantly smuggle gold bricks by filling your backpack, whose dimensions are 60cm x 25cm x 15cm, what would its mass be?

### Pop flows from a 4-in. diameter pop container that contains three holes as shown in figure.

Pop (with the same properties as water) flows from a 4-in. diameter pop container that contains three holes as shown in Figure 3.20 (attached). The diameter of each fluid stream is 0.15 in., and the distance between holes is 2 in. If viscous effects are negligible and quasi-steady conditions are assumed, determine the time at wh

### Rim of a cast iron flywheel.

The rim of a castiron flywheel is 0.5m wide and its inner and outer diameters are 1.8m and 2.6m respectively. Calculate a) the moment of inertia of the rim about its geometric axis and b) the radius of gyration k.

### Mechanics

The acceleration of a marble in a certain fluid is proportional to the speed of the marble squared and is given in SI units) by a=-3.00 v^2 for v greater than 0. If the marble enters this fluid with a speed of 1.20 m/s, how long will it take before the marble's speed is reduced to half of its initial value?

### Find NC for a gold Schottkey diode

Consider a gold Schottkey diode at T=300k formed on a n-type GaAs doped at Nd=5x10^16 cm^-3. Among other things find Phi|n. Phi|n=KT/e*ln(Nc/Nd) I don't understand how to get NC from the information given here. What is NC given the information stated in the problem?

### Gear pump volume and pressure difference

The diagram shows a gear pump. The maximum diameter of the gear wheels is 80 mm, the diameter of the roots of the teeth is 50 mm and the tooth width is 20mm. If the pump is driven at 500 rpm, please estimate the volume of oil pumped every minute. If the pressure difference across the pump is 50 bar, what shaft power has to be

### Retracting cylinder: How far does an elevator settle as the passengers enter?

A 2" diameter hydraulic ram piston supports an elevator in a 2 story building. When the elevator car is at the first floor, the piston is fully retracted into the cylinder. The piston extends 15 feet to place the empty car at the second floor. Eight passengers who each weigh exactly 150 lb. enter the car. If the bulk modulus

### What is the density of material: Standard kilogram of a platinum-iridium cylinder

The standard kilogram is a platinum-iridium cylinder 39.0mm in height and 39.0mm in diameter. What is the density of the material?

### Dimensional Analysis and Dynamic Similtude

Determine the specific gravity of spherical particles, D=(1/200 in), which drop through air at 33degrees F at a speed U of 0.3 ft/s. The drag force on a small sphere in laminar motion is given by 3(pi)(mu)DU. This problem is in Fluid Mechanics by Victor Streeter.

### Physics: Finding the pressure on one cubic centimeter at a depth of 5m.

If one cubic centimeter of water has a mass of 1 gm, find the pressure at a depth of 5m in a tank of water.

### Mass and density of system

Determine the mass of wire having a relative density of 8.77 which must be wrapped around a cork weighing 15 g in order that the cork shall just sink in fresh water. The cork's relative density=0.24.

### Fluid mechanics :sample question

Consider the steady flow of a Casson Fluid through a rigid circular pipe of radius R, driven by a pressure gradient . What equation and Boundary conditions govern this motion? Show that the Volume flow rate is given by: ________________________________________________________________ BACKGROUND INFO: Va

### Solving for Volume Using Multiple Integration

This is a past exam question. Please help me understand how to go about questions a and b. I think I need some kind of double integral or something? Systems Engineering B The shape of the hull of a small barge of width w, length l and depth d, can be approximated by the multivariable function f(x,y), where:

### Determining the cardiac output using Fick's method

Find the cardiac output of a heart using Fick's method given that the concentration of oxygen in the pulmonary artery is 14mL/100 mL (Cin) and in the vein is 20 mL/100 mL (Cout). Oxygen uptake (U) by the lungs is 300 mL/min. Assume that blood flows at a constant rate Q mL/min (the cardiac output).