Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. An ideal rubber strains 1.10 times its original lenght at 27 centigrades(300 K)when supports strees of 150 lb/square inch. After ageing at air during 10 days at 127 centigrades of temperature , the stress force needed to get the enlargement of 1.10 times is 100 lb/square inch.If the original polymer contained 0.015 mol of molecular links per unit of volume. How much moles of links were loosed or gained by ageing effect?
2. An ideal rubber has a non linear strees- strain behaviour curve.If a cube of 1 cm of that rubber is compressed to 0.98 cm by a mass of 3 kg. What stress is requireed to strain a sample of this rubber until to get a new lengt of 7.5 cm?
3. How much work(J)is done in a natural rubber filament when strains slowly and non reversely to a= 2?The initial slope of the stress- strain curve is 2 MPa and the volume of the rubber filament is 4.0 cubic centimeter.
4. One rubber filament strains until a lenght of 14 cm. Its original lenght is 4 cm. We found that the stress at this lenght has an increment of 330,000 Pa when the temperature increase 5 centigrades(from 25 to 30 centigrades). Which modulus must be expected to an elongation of 3% at 27 centigrades? We can neglect any volume change due by the temperature effect.
determine the magnitude of its total accleration when (a) t=0 and (b) t=2 Whats the solution.
An air bubble rises from the bottom of a well where the temperature is 25°C, to the surface where the temperature is 27°C. Find the percent increase in the volume of the bubble if the depth of the well is 5 m. Atmospheric pressure is 101,528 Pasca..
Calculate the adiabatic flame temperature (at constant pressure) for ethane C2H6 in air
Air enters an adiabatic compressor at 0.1 kg/s, 100 kPa, 25 °C and exits at 700 kPa. (a) Draw a schematic of the system. Determine (b) the minimum power input (kW) and (c) the entropy generation rate (kW/K)
determine: (a) the cutting time to complete the facing operation, (b) the cutting speeds and metal removal rates at the beginning and end of the cut.
The piston is then move in,and heat is rejected bt the air reversibly at constant pressure until the volume is the same as it was initially.Calculate the net heat flow and the overall change of entropy.sketch the process of p-V and T-s diagram.
What is the work you get out of each kJ of heat extracted from the basin? Repeat for the case that the water is at 100C. Comment on why efficient car engines run so hot.
this would provide you with a set of Reynolds numbers. Next, using the integral method, determine the velocity profiles within the boundary layer to be followed by determination of the heat transfer coefficient values for your selected Reynolds numbe..
Calculate the steady state excess electron and hole concentrations as a function of distance into the semiconductor.
which acitivities does hydraulic analysis of a pipeline include using HYSYS software? what data can obtained?
determine the designe power. An output speed of 175 RPMis specified. Determine: a) number of teeth on the small sprocket, b) number of teeth on the large sprocket, c) lubrication type required, d) the required length of chain (in inches) if the ce..
Draw conclusions concerning the process, and relate your interpretation to the possible existence of chance and assignable causes of variation.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd