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Assume no temperature change during the pumping and find the gauge pressure in the tank after 100 strokes of the piston. Whats is the volume of the air pump (ft3)?
A particle moving in the x-y plane has a position vector given by r = 1.31t2i + 1.43t3j, where r is in inches and t is in seconds.
What is the maximum angular speed at which the particle can travel in a horizontal circle? (Conical pendulum). Appreciate if you could help solve the problem with detailed explanation and a detailed
The specimen failed due to stress rupture after 100 hours at 982 deg C. Based on the test results, determine whether the tensile support is adequate for the application.
The plane is inclined at 53 degree. and mu = 0.57 is the coeff of friction. The body comes to rest at point B. What is the distance A to B?
Determine the pump/compressor work input (leave as kj/kg) required to isentropically compress water (in part a as a liquid water, in part b as steam) from 100kPa to 1MPa.
Determine hooke's required thickness to the nearest 1/4 inch to prevent tensile or bearing failure if Sigma b-ult = 150 ksi and factor of safety of 1.5 is maintained.
Find the minimum required diameter of the bolt, to the nearest millimeter. If the temperature drops from 25c at launch to -150c during orbit.
If the temperature of the surroundings is 300K, then calculate dSsurr, dSsys, and dStotal in units J/K. Prove that a decrease in the entropy change of the universe will never be obseve because dStot
Calculate the heat-transfer rate and exit temperatures for two cases, both fluids unmixed and one fluid mixed. Assume the hot gases have the properties of air.
what is the final pressure (Pf) in the tires, assuming constant volume? Assume that the air behaves as an ideal gas and that the number of moles (N) in the tires is constant. ignore expansion of the
What is the expression for calculating the acceleration of a motor given the moment of inertia and the accelerating torque?
What is the maximum torque it can supply at 120% rated speed? At what speed is the motor torque gets limited to a maximum value of 80 N.m?
What is the torque available for acceleration? What is the rated speed of the motor? What is the total moment of inertia of the rotating parts of the system (seen at the motor shaft)?
Methane (CH4) at 25 C, 1 bar enters a furnace operating at steady state and burns completely with 140% of theoretical air entering at 400 K, 1 bar. Determine the maximum possible temperature of the
Calculate the heat transfer from the plate assuming plate is not long enough and therefore flow is part laminar and part turbulent.
A water tank with an open top and square horizontal cross-section is to have a capacity of 5 m2. Find the minimum cost of lining this tank with a waterproof material at £ 200 per m2.
A solution is poured into a conical filter of base radius 12m and vertical height 15 m at a uniform rate of 8.4 m3/s and filters out at 6.4 m3/s. What is the rate of rise of the level of the soluti
Determine the microstructure for eutectoid steel that has undergone the following heat treatment. For each heat treatment you may assume that you start with austenite at 760ºC.
Determine the average resistance R to motion over the runway length due to drag (air resistance) and mechanical retardation by the landing gear.
The pan is hot (80C) and the room is cool (20C). Calculate the rate of heat transfer from the pan to the room by convection and radiation combined.
Calculate the rate of heat transfer to the room and the air. Include both natural convection and radiation. Repeat the calculation for an emissivity value of 0.1.
In that area, the average wind speed is 24 km/h at an air temperature of 10 degrees C and pressure of 0.9 atm. The rotor has a diameter of 1.25m. What is the electrical power available?
Knowing that it strikes the water 4s after release, determine: (a) The speed at which the stone was thrown upward. (b) The speed at which the stone strikes the water.
Assuming a uniform convection coefficient of h=100 W/m^2*K over the entire fin surface, determine the fin heat tranfer rate; efficiency Nf and the effectiveness Ef.