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ENGINEERING
COLLEGE
A Coca Cola can with diameter 62 mm and wall thickness 300 um has an internal pressure of 100 kPa. Calculate the principal stresses at a point on the cylindrical surface of the can far from its ends.
ENGINEERING
COLLEGE
What is 29.95 inHg in kPa?
ENGINEERING
COLLEGE
Please define the specific heat of material?
ENGINEERING
COLLEGE
What are two advantages of forging when compared to machining a part from a billet?
ENGINEERING
COLLEGE
Yield and tensile strengths and modulus of elasticity . with increasing temperature. (increase/decrease/independent)
ENGINEERING
COLLEGE
//This method uses the newly added parameter Club object //to create a CheckBox and add it to a pane created in the constructor //Such check box needs to be linked to its handler class
ENGINEERING
COLLEGE
8.2.1: Function pass by reference: Transforming coordinates. Define a function CoordTransform() that transforms the function's first two input parameters xVal and yVal into two output parameters xValNew and yValNew. The function returns void. The transformation is new
ENGINEERING
MIDDLE SCHOOL
Can you tell me important facts about Peggy A. Whitson?
ENGINEERING
COLLEGE
A cylindrical specimen of cold-worked steel has a Brinell hardness of 250.(a) Estimate its ductility in percent elongation.(b) If the specimen remained cylindrical during deformation and its original radius was 5 mm (0.20 in.), determine its radius after deformation.
ENGINEERING
COLLEGE
What is the average distance in microns an electron can travel with a diffusion coefficient of 25 cm^2/s if the electron lifetime is 7.7 microseconds. Three significant digits and fixed point notation.
ENGINEERING
MIDDLE SCHOOL
A sailboat is operating under sail at night. Which of these lights should be used?orange masthead lightblue sternlightyellow masthead lightwhite sternlight
ENGINEERING
COLLEGE
The dam cross section is an equilateral triangle, with a side length, L, of 50 m. Its width into the paper, b, is 100 m. The dam material has a specific gravity, SG, of 3.1. You may assume that the dam is loosely attached to the ground at its base, though there is significant friction to keep it from sliding.Is the weight of the dam sufficient to prevent it from tipping around its lower right corner?
ENGINEERING
MIDDLE SCHOOL
Compared to 15 mph on a dry road, about how much longer will it take foryou to stop at 30 mph on a snow-covered road?2 to 3 times4 to 6 times8 to 10 times
ENGINEERING
COLLEGE
Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. So, it is no surprise that such clothing has largely replaced thick and heavy old-fashioned coats. Consider a jacket made up of six layers of 0.1 mm thick synthetic fabric (k = 0.026W/m.K) with 1.2 mm thick air space (k = 0.026 W/m.K) between the fabric layers. Assuming the inner surface temperature of the jacket to be 25˚C and the surface area to be 1.25 m2 , determine the heat loss through the jacket when the temperature of the outdoors is -5˚C and the heat transfer co-efficient of outer surface is 25 W/m2 .K. What would be the thickness of a wool fabric (k = 0.035W/m.K) if the person has to achieve the same level of thermal comfort wearing a thick wool coat instead of a jacket. (30 points)
ENGINEERING
COLLEGE
Q1. A truck traveling at 40 mph is approaching a stop sign. At time ????0 and at a distance of 80ft, the truck begins to slow down by decelerating rate of 12 ft/sec2 . Will the truck be able to stop in time?
ENGINEERING
COLLEGE
Air expands adiabatically through a nozzle from a negligible initial velocity to a final velocity of 300 m/s, what is the temperature drop of the air, if air is assumed to be an ideal gas for which CP = (7/2)R?
ENGINEERING
COLLEGE
A new pipeline is installed to convey 2500 gal/min. If the pipeline can not exceed 6 ft/1,000ft of head loss what is the minimum standard diameter to convey the flowrate? Size both PVC (C=130) and steel (C=120) pipelines.
ENGINEERING
COLLEGE
Write a Lottery class that simulates a lottery. The class should have an array of five integers named lotteryNumbers. The constructor should use the Random class (from the Java API) to generate a random number in the range of 0 through 9 for each element in the array. The class should also have a method that accepts an array of five integers that represent a person’s lottery picks. The method is to compare the corresponding elements in the two arrays and return the number of digits that match. For example, the following shows the lotteryNumbers array and the user’s array with sample numbers stored in each. There are two matching digits (elements 2 and 4).
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