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.

. A 20 mm diameter sphere made of aluminum alloy 2024 initially at a uniform temperature of 500 ºC is suddenly immersed in a saturated water bath maintained at atmospheric pressure. The surface of the sphere has an emissivity or 0.25. Determine.

a.) the total heat transfer coefficient for this initial condition, and

b.) what fraction of the total coefficient is contributed by radiation. (~180 W/m2 -K, ~ 7%)

Water vapor enters a subsonic diffuser at 0.5 bar,
175 °C, and 200 m/s. The diffuser inlet is 100 cm2. During passage through the diffuser, the fluid velocity is reduced to 50 m/s, pressure increases to 1.0 bar and heat transfer to the surroundings is

0.5 kg/kJ. Determine

a) the final temperature,

b) the mass flow rate [kg/s] and

c) the outlet area [cm2]

For a catapult project I must make a MATLAB code that should make use of the projectile motion

equations so for a given input range R (horizontal distance from the catapult to the target), the code

outputs the necessary velocity and firing angle of the catapult. What is the code for this? I am lost.

Fix the bugs in this matlab program so that it solves.

clear
clf
clc
time = linspace(0, 5, 100);
m = 1; k = 100; c = 1; delta = 0.2;
[period, response] = Exmp(m, k, c, delta, time);
plot(time, response)
grid
%Exmp(m, k, c, delta, time)
%
%________________________________________
function [T, x] = Exmp(m, k, c, delta, t)
omega = sqrt(k/m);
cC = 2*m*omega;
if c>= cC
disp('Not an underdamped system')
T = 0; x = 0;
return;
end
% end of if- - - - - - - - - - - - - - - - - - - - -
omegaD = omega*sqrt(1-(c/cC)^2);
T = 2*pi/omegaD;
x = delta*exp((-c.*t)/2*m).*(cos(omegaD*t)+c/(2*m*omegaD).*sin(omegaD*t));
end
% end of the function - - - - - - - - - - - - - - - -

Q1) Identify five Nondestructive Testing methods and the principles that govern those

inspection techniques?

Define Obstacle expansion (or obstacle inflation). Explain the trade off between Exploration and Exploitation during robot localization in a map.

Air flows steadily through a converging-diverging nozzle with a throat area equal to 1.395 in2 , and an exit area equal to 2.79 in2 . A normal shock wave stands at the exit plane of the nozzle. The exiting jet flows into a large room, where the pressure is equal to 14.7 psia. The temperature of the air in the exit jet stream, just after the nozzle exit, is measured at 87 deg F. Calculate the mass flow rate through the nozzle. Calculate the pressure, temperature and velocity at a location in the nozzle where the flow area is equal to 5.58 in2 .

keep in English units

You are an engineering consultant hired to verify an elevator design. The elevator mass is 500kg and has a maximum occupant capacity of 800kg. Carbon steel cables with total cross sectional area of 64cm2 support the elevator. The maximum speed of the elevator is 2 meters per second. At the maximum speed, each cable extends at least 4 meters and cannot extend more than 22 meters, unstretched. When the car is not moving and the cables are extended by 22 meters of (unstretched) cable, there is 3 meters of clearance between the bottom of the elevator and the concrete floor of the shaft.

Carbon Steel Cable:

Young’s Modulus: 207 GPa

Yield Strength:      131 MPa

Ultimate Strength: 290 Mpa

Requirements for the elevator include a factor of safety of 3 for cable failure and the occupants must not ever experience more than 5 times the acceleration of gravity.

Make a sketch of the problem.

Answer the following questions:

1.If the elevator is moving at maximum speed and the motor suddenly stops, what is the worst case for cable failure?

2.What is the value of the worst case stress in the cable (MPa)?

3.The design meets the cable failure factor of safety requirement. (T/F)

4.If the elevator is moving at maximum speed and the motor suddenly stops, what is the worst case for occupant acceleration?

5.Describe at least one change to improve the design. Explain how your suggestion would improve performance relative to the requirements.

A rigid cylinder of volume 0.025 m^3 contains steam at 80 bar and 350^o C. The cylinder is cooled until the pressure is 50 bar. Calculate the state of the steam after cooling and the amount of heat rejected by the steam. Sketch the process on the T-s diagram indicating the area which represents the heat flow. Also sketch the schematic of the system.

A rectangular wing with a NACA 65-210 airfoil section and a chord of 6 in is mounted in the Auburn University 2 ft × 2 ft wind tunnel, completely spanning the test-section. The tunnel is operating with test section velocity, pressure, temperature, and velocity of 1 atm, 520°R, and 75 ft/s, respectively. (a) Calculate the lift, drag, and moment about the quarter-chord when the angle of attack is 5°. (b) What angle of attack would be required to generate a lift of 8 lb?

8. The chapter text describes various materials that have been used to produce casting patterns (i.e., the tooling that is used to produce molds), including Styrofoam, soft woods, hard woods, epoxylurethane polymers aluminum, and iron. For each of these materials, briefly discuss the pros and cons, considering such factors as number of castings to be produced, the size and shape of the casting, the desired precision of the cast product pattern cost, dimensional stability (both wear and environmental factors such as temperature and humidity) susceptibility to damage, ability to be repaired or refurbished, process limitations, and storage concerns