when it is 2 pm. Mountain standard time on februvary 3 in north platte (longitude=101,latitude=41) what is solar time

An air-standard dual cycle has a compression ratio of 8.6 and displacement of Vd = 2.2 L. At the beginning of compression, p1 = 95 kPa, and T1 = 290 K. The heat addition is 4.5 kJ, with one quarter added at constant volume and the rest added at constant pressure. Determine: a) each of the unknown temperatures at the various states, in K. b) the net work of the cycle, in kJ. c) the power developed at 3000 cycles per minute, in kW. d) the thermal efficiency. e) the mean effective pressure, in kPa.

The displacement volume of an internal combustion engine is 2.22 liters. The processes within each cylinder of the engine are modeled as an air-standard Diesel cycle with a cutoff ratio of 2.5. The state of the air at the beginning of compression is fixed by p1 = 1.6 bar, T1 = 325 K and V1 = 2.36 liters. If the cycle is executed 2100 times per min, determine: a) the compression ratio, b) the net work per cycle, in kJ, c) the maximum temperature, in K, d) the power developed by the engine, in kW, e) and the thermal efficiency.

Derive the reduced stiffness matrix Qxy relating stress_xy to strain_xy

Derive the reduced compliance matrix relating strain_xy to stress_xy  

Determine the Ex, Ey, nu_xy, Gxy, in the reference frame (x and y) as a function of angle 0 and 45 degrees for a unidirectional lamina having the properties

What are your observations of the values increasing or decreasing with respect to the 0 degree lamina when the lamina is rotated to 45 degrees.

E₁=181 GPa; E₂=10.3 GPa; u₁₂=0.28; G₁₂=7.17 GPa

please explain in detail. thanks!

This is a Matlab Exercise problem. Please create the Matlab code and figure for the following problem using problem specifications:

Plot x vs y when y=sin(x), y=cos(x), y=sin (2*x), and y=2*sin(x) when x = 1:0.1:10. Use 2 by 2 subplot, sin(x) is in location 1, cos(x) is in location 2, sin(2*x) is in location 3 and 2*sin(x) is in location 4.

The plot should have:

(1) x label = ‘x value’, y label = ‘y value’, legend ‘y=sin(x)’,’ y=cos(x)’,’ y=sin (2*x)’, ‘y= y=2*sin(x)’ and title = ‘x Vs. y’ under Font Name of Times New Roman, and Font Size of 14 pt. for all subplot location.

(2) For sine(x) use red solid line, for cos(x) use blue dashed line, for sin(2*x) use green dash-dot line, and for 2*sin(x) use solid line and RGB [0.5 0.2 0.2]

(3) Create minor grid for all subplot location.

Please attach editor code and the figure in your answer. Thank You!

At steady-state, fuel oil is supplied at 0.01 gal/min to an oil furnace for home heating. (Note: 1 gal = 3.785*10^-3 m^3). The fuel oil density is 870 kg/m^3. Combustion air at 65°F and 1 atm enters the furnace with a volumetric flow rate of 15.2 ft^3/min. Determine the mass flow rate of combustion product gases flowing up the chimney flue. Also, determine the average velocity of the flue gas if the gas temperature is 225°F and the flue diameter is 9 in. Assume that the flue gases behave as an ideal gas with an apparent molecular weight of 29 kg/kmol. Also, assume that the pressure in the flue is essentially 1 atm (absolute).

A piston-cylinder device initially contains 75 g of saturated water vapor at 310 kPa . A resistance heater is operated within the cylinder with a current of 0.4 A from a 200 Vsource until the volume doubles. At the same time a heat loss of 2 kJ occurs.
a.Determine the final temperature
(T2).
b. Determine the duration of the process.
c. What-if scenario: What is the final temperature if the piston-cylinder device initially contains saturated liquid water?

Tin (atomic radius, r = 1.405 A)and nickel (r = 1.243 A) both dissolve in copper (r = 1.278 A) by substitution in the copper lattice. Which of these elements added to copper will produce a metal with a higher strength and why?

You work for a company that produces gas grills. A new design for a propane grill uses preheated air to improve its performance. The grill flame operates with an equivalence ratio of 0.9 and the air and fuel are heated to 450K prior to the burner. A ceramic plate is above the burner for radiating heat to the food on the grill. You are told that the plate is capable of withstanding 2200 K. Assuming that the flame directly impinges on the plate, are you comfortable with this design? Show calculations to back up your reasoning. (assume complete combustion and product specific heats evaluated at 1500 K)

What kind of defects could occur in:
a. Extrusion
b. Rolling

use matlab to create a function that finds inverse of 2x2 matrix and returns result. Should be a error check to make sure matrix is 2x2, and nonsingular.

Dispute the Kolmogorov scale in turbulence.

Prove that Kolmogorov was wrong.

create a function in matlab that sums two m x n matrices using nested loops, then returns result into a new matrix. Use nesed for loops to add matrices piece by piece. Basically means, dont program simply A+B

Function should perform error check to make sure both matrices have same number of rows/ columns.

1 – What is the mechanism of UV aging of polymeric materials? 2 – Why the mechanical properties of polymers varies with processing technique? 3 – How the dynamic friction of composite depends on the filler’s nature?

1. If you suspect that the vehicle tends to oversteer in a corner, which sensors readings would you check to confirm your suspicions?

2. While on a road course, the first driver consistently achieves a lap time of 1 min 23 seconds while the second driver achieves a lap time of 1 min 45 seconds. As the race engineer, how would you coach the second driver to translate logged data into future ontrack gains? Hint: Assume you have a GPS (!), along with the usual other sensors. How can you overlay the data of both drivers, so you can compare their strengths and weaknesses?

3. With regards to data pulled from sensors, is the data always accurate? Can it be trusted to properly setup the vehicle?

4. True or False (If false please explain why) - Vehicle setup is solely dependent on the race engineer regardless of driver input because the race engineer can fully optimize the vehicle based on sensor data.

5. True or False (If false please explain why) - Sensor data should be logged during every session and compared with the engineers set up sheet, engineer’s notes, and driver’s notes during debriefing, to assess the effects of any changes done to the vehicle.

The following informaiton is not a question; it is just some extra background information.

some of the sensors that are being discussed are Hall Effect Sensors, Wheel Speed Sensor, Steering Angle Sensor, GPS, Linear Potentiometer, Wheel Speed Sensor, and a Steering Angle Sensor.

Some Sensor Functions...

Shock Travel Sensors - will be used to measure shock travel distance as well as shock speed. The motion is also important for determining proper shock damping rates. A shock should never be fully compressed, eliminating damping potential, which can result in the vehicle becoming unsettled and/or damaged. Based on shock travel data, vehicle status can be evaluated and adjusted to enhance performance. For example, if the vehicle continues to bounce up and down a number of times after the initial impact to the shocks, then it is likely that the vehicle is underdamped, and spring and damping rates can be adjusted.

Wheel Speed Sensor - measures revolutions per minute (RPM) and can be used as a tachometer. Hall effect sensors are a common type of wheel speed sensor.

GPS - can be used to measure absolute speed, the vehicle track position (racing line), and lap timing during road racing. The position information can be used in MoTeC's i2 data analysis software to show and compare the driven lines by each driver as well as create track maps. Additionally, a GPS unit can be a cost-effective alternative to the traditional lap timing system. GPS is a useful tool to help with driver learning. Since the position and speed are tracked, the race engineer can calculate the optimum position for the driver to begin braking, or where to start a turn to allow for the fasted lap time. And when debriefing the driver, it can be used to show where the driver needs to make improvements.

Accelerometer - the MoTeC C185 Display has a built-in 3-axis accelerometer, which measures acceleration in the x-y-z directions; however, it is located in the vehicle dash, not at the vehicle Cg. To simplify the analysis, we will pretend that the accelerometer data is located at the Cg for purposes of this course. The sensors are oriented to measure the lateral and longitudinal accelerations of the vehicle, such as in a turn or during acceleration or braking.

Steering Angle - measured in degrees, is recorded to better understand how the vehicle is reacting to driver inputs. For example, while in a turn, if the steering angle sharply rotates into a counter steer situation it is likely that the vehicle began to oversteer. The steering angle sensor fits into the end of a slotted steering shaft at the steering rack. - TPS (Throttle Position Sensor) - this mounted directly to the rotational shaft of the butterfly valve on the throttle body. It measures the rotation of the throttle body in degrees that is then read by the ECU and recorded for future analysis.

*Engine Speed (RPM) - measures the speed of the crankshaft of the vehicle and relays the information to the MoTeC dash unit. Engine speed is used to remain in peak power areas for the engine (around 11,000 RPM) as well as protecting the engine from damage of over revving the engine.

*Gear Position - determines what gear the vehicle is in and can be displayed for the driver. This eliminates any confusion of what gear the vehicle is in at a given time. This is especially helpful for sequential gearboxes, such as in the formula car, for knowing which gear the vehicle is in. Unlike traditional H pattern gearboxes, the shift lever reverts back to its original position after every shift and without a gear position sensor, the driver would be tasked with correctly counting which gear the vehicle is in. On the FSAE car, neutral is located between first and second gear. Therefore, the shift lever is pushed forward to select first gear, then pulled rearward to select 2nd through 6th gear.