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The polyethylene bar is then compressed by an axial force P. At what value of the forve P will the space between the polyethylene bar and the steel tube be closed?
A gas contained in a piston cylinder assembly undergoes a process from state 1 to state 2 defined by the following relationship and given properties.
Which of the following characteristics that relate the solutes and solvents (and their atoms) determine the degree to which the solute species dissolves in the solvent?
Determine the final volume (V2) of the gas. P*V = constant P1 = 445 kPa V1 = 2.6 m^3 P2 = 140 kPa ans is 8.3 but how do i get it?
The slotted link is pinned at O, and as a result of the constant angular velocity theta dot= 3rad/s it drives the peg P for a short distance along the spiral guide.
The arm of the robot has a fixed length of r=3ft and it grips A moves along the path z=3sin(theta)ft, Where (theta) is in radians. If (theta) = .5t raddd.
Determine the distance between them when t-3 seconds. Determine the total distance particle A has traveled in t=3 seconds. Determine the total distance particle B has traveled in t=3 seconds.
What happens if a positive edge dislocation meets a negative edge dislocation on the same slip plane with a parallel Burgers vector of the same length?
Suppose lithium is dissolved interstitially in silicon. Would you expect the lithium atoms to be donors or acceptors? Would a lattice vacancy in silicon be a donor or an acceptor?
What fraction of the volume change that takes place when the crystal is heated from room temperature to its melting temperature is due to the presence of vacancies?
Find the compressor's (a) isentropic efficiency, (b) second law efficiency, (c) reversible work, (d) irreversibility, and (e) exergy destruction.
The computer is now turned on and the chip is heated adiabatically from ambient at 20 °C to 75 °C. Determine (a) the change in exergy of the chip (kJ) and (b) exergy destroyed (kJ).
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.