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If a barium titanate dielectric material with K = 2100 is used between the plates which have an area of 5.0 x10-5 m2, what must be the separation distance between the plates.
If the costs are expected to increase by $250 each year for the next 4 years (i .e., through year 5), what is the equivalent annual worth of the costs (years 1 through 5) at an interest rate of 18%
If a design factor of 2.5 is to be used what should be the maximum allowable value of applied load P according to the maximum shear stress theory.
Estimate the endurance limit of the machine component using the rotating beam specifmen enfurance limit at 10^6 cycles.
Determine the change in momentum of each vehicle. If the time of deceleration of vehicle 2 during the collision is 0.15 seconds determine the average force acting on this vehicle during this time.
Disregarding any heat transfer, determine: a) The final temperature in the balloon b) The mass of helium that has escaped.
The nitrogen exhausts from the turbine at 100 kPa. What size volume tank is necessary to produce the power output for a period of one hour?
The total entropy generated if the heat was provided by a resister heater with the consumption of electricity; Explain why more entropy was generated when the heat was provided by a resister heater?
The gage pressure reading is 30 kPa. If the enclosed gas is air with a mass of 4.00×10-7 kg, calculate the temperature of the source in °C assuming P(atm) = 101.325 kPa.
The boiler kicks on raising the temperature of the water flowing to the pump to 200 F The pump begins to fail lowering the prressure. At what pressure in psia does cavitation occur.
Determine the minimum power required to run this heat pump if heat is extracted from (a) The outdoor air at 25°F and (b) The well water at 50°F.
The state of wyoming is bounded by the meridians 111.3 degrees and 104.3 degrees west longitude and by the circles 41 degrees and 45 degrees north latitude.
If the house is losing heat at a rate of 62,000 kJ/h, determine the minimum rate of heat supply to the heat engine required to keep the house at 22ºC.
Calculate the specific internal energy and enthalpy changes and also the work done during the process. R=0.287 KJ/kg.K
Determine: 1. The rate of heat removal from the refrigerated space and the power input to the compressor. 2. The rate of heat rejection to the environment.
If the diameter of the pipe is 6 cm, the surface roughness is 0.002 mm, and L = 1.29 m, determine the pressure loss over the heat exchanger if the flow rate of glycerine is 9 L/s. Assume the heat ex
The total pipe length from the reference point to tank B is 500ft. Tank B is also at atmospheric pressure. Calculate the flow to each tank in gallons per minute . Show all work
Find the minimum velocity ‘v' at which the barrel just rolls over the stopper without slipping. The radius of gyration of the barrel is ‘k' and it can be assumed that the angular impulse
Estimate the speed of the airplane, assuming incompressible flow. Assume air to be an ideal gas with gas constant of 287 J/kg.K.
Draw the cycle on a T-s diagram and calculate (b) the specific heat added (kJ/kg) , (c) the specific heat rejected (kJ/kg), and (d) the thermal efficiency of the cycle.
Estimate the time required to fill the tank if the pressure in the pipe at a section 10m upstream of the exit is measured as 5 times 10degree N/m2.
Write an energy balance on the turbine and use it to determine the outlet stream temperature. Write an energy balance on the heater and use it to determine the required input (kW) to the steam.
If 400 kg/h of the product steam is to be generated, how much heat must be added to the mixer? If instead the mixing is carried out adiabatically, at what rate is the product steam generated?
The steam exits through a 20-cm diameter pipe at 450°C and 100 kPa. If the turbine operates adiabatically, how much power (kW) can be generated by the turbine in this process?