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Estimate the mean and variance of the distribution of clearances for the bearing-shaft assemblies. Assuming that the mating of bearings and shafts is random estimate the proportion of assemblies tha
A single branch closed tube reads 35 cm connected to point 1. If P2 = 1.2 ATM calculate the pressure in point 1 and the density of the manometric fluid.
The automobile has a speed of 80 ft/s at point A and anacceleration a having a magnitude of 10ft/s2, acting in the direction shown.
What is the activation energy of a rubber band if the pre-exponential constant is 5.0x10^8 days^-1 and the rubber band is maintained at 30 degrees C? Show all work.
A load of 2.75x10^6 g produces a 0.327 cm diameter impression in the nickel surface. Calculate the BHN. (P = kg, d = mm). Show all work.
A heat engine in each cycle absorbs energy from a reservoir as heat and does an equivalent amount of work, with no other changes. This engine violates:
Determine (a) the rate of exergy destruction (kW) and (b) the second-law efficiency? The ambient temperature and pressure is 21 C and 98 kPa, respectively.
If upon initial null balance R3 is 127.5 ohms and if, when R2 and R4 are interchanged, the null balance is achieved when R3 is 157.9 ohms, what is the value of the unknown resistance R1?
Assuming the center-to-center distance of two atoms (not under stress) is the sum of the radii, calculate the atomic separation distance under stress.
Under a tensile stress of 890 MPa, the atomic separation increases to 0.2866 nm. Calculate the modulus of elasticity.
Determine the entropy generation and the work transfer to or from the steam. Is the process irreversible, reversible, or impossible?
Steam in a piston-cylinder assembly undergoes a polytropic process with n=2 from an initial state where P = 500 psia and specific volume of 1.701 ft3/lb to a pressure of 100 psia.
Find the complete initial and final states for the following processes (T, P, v, h, u, s and phase) involving simple compressible substances. Interpolate where necessary.
What is the partition coefficient of CO for tissue A relative to tissue B? (c) Steady-state diffusion of CO occurs through a tissue consisting of the same two tissues (A and B) in series.
Derive an algebraic expression for the temperature of blood exiting from the ventricle as a function of time. What will be the temperature of blood emerging from the ventricle after a long period of
Determine the expression for entropy transfer rate accompanying the heat transfer rate over the area from y = 0 to y = L. Assume unit depth into page.
The specific internal energy in kJ/kg at the initial state and final state. The overall change of internal energy in kJ, i.e. deltaU = U2 - U1.
If the elevator can accelerate at 0.8 ft/s^2, decelerate at 0.4 ft/s^2, and reach a maximum speed of 8 ft/s, determine the shortest time to make the lift, starting from rest and ending at rest.
Find the transfer function and resolution for a 10-turn, 4.7Kohm potentiometer with 3450 degrees of rotation and 0 to 5 volts output. Calculate the the resolution in ohm per volt.
The temperature of the inner surface of this pipe is 50 c and the temperature of the outside is 20 c. What is the heat transfere per unit length?
Suppose that your business is operating at the threesigma quality level. If projects have an average improvement rate of 50% annually, how many years will it take to achieve six-sigma quality?
The distance between the two points is divided into 100 equal parts in both thermometers. Do you think these thermometers will give exactly the same reading at a temperature of, say, 60 C? Explain.
The car then slows down to a velocity of 30 mi/hr in an additional distance of 370 ft with a deceleration which is proportional to its velocity. Find the time t for the car to travel the 480 ft.
If the x component of acceleration is a=(1/4t^2)m/s^2, where t is in seconds, determine the magnitude of the rocket's velocity and acceleration when 10s.