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A [0/90] square laminate was cured at elevated temperature. Draw the shape of it when it is cooled down to room temperature.
Derive shear modulus G or bulk modulus K of isotropic materials in terms of Young's modulus E and Poisson's ratio v.
The ambient pressure outside the cylinder is 14.6 psia and the local acceleration due to gravity is 31.1 ft/s2. What is the air pressure inside the cylinder in psia and in psig?
How would the wheel diameter and the volumes of the containers holding the working substance affect performance? Are there any practical applications for such a device? Discuss.
Determine the static head efficiency required of the turbine if the total pressure of its exhaust is not to be less than 1.6 bar and the exhaust velcotiy is 300 m/s.
During one part of the motion the particle is observed to move with a constant velocity of 5 in/sec along the y-axis. Calculate the magnitudes of the particle's velocity and the acceleration when it
Find the pressure variation in the directions tangent and normal to the strealimes. Does the pressure variarion depen on the flow speed?
What will be the dc supply voltage required? What will be the counter EMF developed by the coil under steady operating condition if the coil resistance is 0.01 Ohm?
The endurance limit of a steel component is 112 MPa and the ultimate tensile strength is 385Mpa. What is the fatigue strength corresponding to a life of 70 x 10 power of 3 cycles?
The local atmospheric pressure and acceleration due to gravity are 100 kpa and 9.81m/s^2 respectivly. For the water, determine the pressure,in kpa, and volume in cm^3.
Consider the 0.3 kg of N2 in a rigid container at 400 K and 5 atm. The N2 is cooled to 300 K. Determine the specific entropy change of the N2 associated with this cooling process.
If the temperature of the sample changes from 60 °C to 50 °C, what is the expected change in resistance? What if the temperature changes from 60 °F to 50 °F.
Is mercury a good choice for using as the liquid in a manometer on this planet? If so, why? If not, what other liquid might you recommend using?
A manometer attached to the cylinder indicates a pressure of 620 mmHg above atmosphere. Determine: (a) The absolute pressure of the gas in the vessel, (b) The specific volume of the gas.
A 10.00-meter-long pipe, closed at one end, was inverted and submerged vertically in a Minnesota lake until the closed end was even with the lake surface. How high (in meters) does the water rise in
It is observed that the wire stretches 45 mm when a tensile force P is applied. Knowing that E= 200 GPa, determine (a) the magnitude of the force P, (b) the corresponding normal stress in the wire.
The specific heats above and below the freezing point are 3.2 and 1.7 kJ/kg·K, respectively. The heat of fusion ( the amount of hear needed to freeze 1 kg of fish ). Find the heat transfered.
How high was the elevator when the stone was released? With what speed does the stone strike the bottom of the shaft?
Knowing that E=0.45x10^6 psi, determine (a) the reactions at A and C, (b) the normal stress in each portion of the rod.
Shearing stresses on the directions normal and tangential to the weld are σ=12ksi and τ= 7.2. Determine the magnitude p of the largest axial force that can be applied to the pipe.
Then it is isothermally compressed to state 3. Draw the diagram of the process on a PV chart and find the equation for total work.
If the specific internal energy of the gas decreases by 29.8kJ/kg during the process, determine the heat transfer, in kJ. Assume kinetic and potential energy effects are negligible.
A 100 lbm liquid-vapor mixture of water in a rigid container with a volume of 3 ft3 at a temperature of 100oF is heated until the system becomes a single phase. What is the heat transfer of the proces
Evaluate the thermal conductivity of the soda lime glass at 300 K. If the aircraft has 130 windows and it costs $1/kWh to heat the cabin.
When being chargerd by a 40 volt DC supply, find the time, t for vc to reach 20 volts after the charging process has started if C=200μF and R=10kΩ.