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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.
Calculate the number of years it takes to pay off loan in one equation, if yearly income is $120,000 and suppose yearly payment is $10,000 and the total debt is $45,000?
The R-134a undergoes a process that increases its volume by 40 percent. Calculate the final temperature and enthalpy of the R-134a.
A particle travels along the circular path x²+y²=r². If the y component of the particle's velocity is Vy=2rcos2t, determine the x and y components of its acceleration at any instant.
The motion of the partice is defined by the realtions r=b(2+cospit) and theta=(pi)t. Where t and theta are expressed in m and radiains. Determine (a) the accleration and velocity of the partice when
What change in the given data would have to be allowed if each set were to be used? Calculate results for at least four different sets and state reasons for your final choice.
If the scrap metal density, in kg/m^3, varies with position z, in m, according to density=7800-360(z/L)^2, determine the reading in the scale, in N.
The clearance between the members is 14 in. Determine the required length L of each splice if a factor of safety of 2.75 is to be achieved.
What is the average cost per kWh with green power during the year? why does green power cost more than conventional power?
The initial pressure and temperature of the air are 400kPa and 200C, respectively, while the final temperature is 100C. Determine the work for the air system and sketch the process.
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.
What diameter should the hovercraft deck be to operate at this condition, and what will be the resulting hover gap height? Assume the density of air is 1.17 kg/m3.
Knowing that E = 3.2 GPa, that the maximum allowable normal stress is 40 MPa, and that the length of the thread must not increase by more than 1%, determine the required diameter of the thread.