The erosion rate of a streambank is calculated by the excess shear stress equation: e=k(a-c) where e is the erosion rate in m/s, k is the erodibility coefficient in m^3/ N s, a is the applied shear stress (Pa) and c is the critical shear stress (Pa). The applied shear stress is calculated using the equation a=den*g*d*s where den is the density of water (1000 kg/m^3), g is the acceleration due to gravity (9.8 m/s^2), d is the depth of water (m) and s is the bed slope (m/m). The critical shear stress is a function of the silt and clay content of the streambank and is calculated using the following equation: c=0.1+0.1779(SC%)+0.0028(SC%)2-2.34E-5(SC%)3 where SC% is the percent of the streambank that is silt and clay. The erodibility coefficient is calculated using the equation k=0.20*c^-0.5. Develop a program in MATLAB that calculates the erosion rate of a streambank. The user should enter the following values: depth of water, bed slope and percent of silt and clay. The program should write out “The erosion rate is:”, the rate calculated and the units. Test the program using the following: d=1, s=.001, SC=35 and d=0.1, s=.004, SC=50. Document the erosion rate. Paste all input and output code into this Word document.

Given a system of five (5) 3500-lb, 700 feet per minute (fpm) elevator cars. Gearless traction motors are being used for this system.   Each car operates approximately 65% of the time and while in operation, each car draws 96% of the full load. Calculate

Heat generated in the machine room during peak periods. Assume solid-state control is used. (5 points)

Assume the following operation profile during a 24-hour day

5 hours peak use

3 hours of 70% peak

4 hours of 50% peak

12 hours of 10% peak

Calculate the approximate monthly energy cost using the electricity rate of $0.10/kWh assuming 25 days of operation per calendar month (10 points)

Air enters a thin-walled, 5-mm diameter, 2-m-long tube at a uniform inlet temperature of 100°C. A constant heat flux is applied to the air from the tube surface. The mean temperature of air at halfway along the tube (at 1 m length) is reported as 126°C. If the tube surface temperature at the exit is 160°C and the local heat transfer coefficient at the exit is 29.5 W/m^2K, determine

a) the applied heat flux,

b) the rate of energy increase in air from the entrance to the exit of the tube,

c) the mass flow rate of air in the tube,

d) the local heat transfer coefficient at halfway along the tube (at 1 m length),

e) the surface temperature of the tube at halfway along the tube (at 1 m length).

Assume steady-state conditions and constant air properties.

Consider a Bevel Gear Differential used to drive the rear wheels in an automobile. Assume the input angular velocity is to the carrier and the output angular velocities drive the left and right wheels. If both wheels rotate at the same speed, what is the angular velocity of the planet gear?

Assume you know that a process is in statistical control. Is it a capable process? Give an explanation for your answer

write down the options of how to find the value of an enthalpy difference for air.Which one is most accurate??

Find the Examples of stability and resilience, except for ships.

A certain VOC compound has measured vapor pressures equal to 0.1316 psia at 31.65° F, and 0.2034 psia at 44.57° F. Determine the constants A and B in a Classius-Claperon type equation for estimating vapor pressures of this VOC. Use the equation to estimate the vapor pressure of the VOC at 77.0 deg F. Ans. 0.55 psia.

Q1. Explain how (EinScan-SE?) 3D Scanner work ?

Which of the following statements about a real Rankine cycle is true?

Top of Form

(A)

The entropy of the working fluid increases across every component.

(B)

The temperature of the working fluid increases across the pump.

(C)

The pressure of the working fluid increases across the boiler.

(D)

The work performed by the pump is equal to the product of the power into the pump and the pump efficiency.

An air-standard Carnot cycle is executed in a closed system between the temperature limits of 350 and 1200 K. The pressures before and after the isothermal compression are 150 and 300 kPa, respectively. If the net work output per cycle is 0.5 kJ, determine (a) the maximum pressure in the cycle, (b) the heat transfer to air, and (c) the mass of air. Assume variable specific heats for air.

A certain engine develops an output torque of 1800 + 200sin2?? Nm, where ? is the crank angle measured from some datum. This engine drives a machine which requires a driving torque of 1800 + 300sin?? Nm. The rotating parts have a mass of 100 kg, with a radius of gyration of 0.25 m. The maximum speed of the rotating parts is observed to be 250 rev/min. a) Sketch both the driving and load torque curves on the same axes b) Prove that during 1 cycle, the maximum energy is stored between ? and 5.56 radians c) Determine the maximum energy stored d) Determine the minimum speed of the rotating parts e) Determine the coefficient of fluctuation of speed f) Determine the mean power developed by the engine

1a. The latitude in Ames Iowa is 42 degrees. Most outside walls on homes are 10 feet high. As an energy conscious building designer, you would like the wall overhang to shade 90 percent of the wall at the summer solstice. Perform an analysis/design to determine the length of the overhang. show all work and discussion

1b. The latitude of UH is 30.6 degree (remember at the noon equinox solar angle from the vertical is 30.6 degree) Determine the degree above the horizon the sun sits at noon on the winter solstice. Repeat for the summer solstice. use sketches to perform and illustrate calculations

Compare and contrast response (how material behaves/responds when subjected to a load) and failure (where the material fails or the parts are damaged) properties and give three examples of each.