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A 60 kg circus performer who is shot from a cannon (actually a spring gun) the gun has a very large spring with a very small mass and a force constant of 1100 N m that he will compress with a force of 4400 N. The inside of the gun barrel is coated with Teflon,so the average friction forcewill be only 40 N during the 4.0 m he moves in the barrel. At what speed will he emerge from the end of the barrel,2.5 m above his initial rest position?
nitrogen with a mass of 4.4 lb is contained in a closed rigid tank at 27 degree c. work and heat are transferred to the
a gaseous mixture consisting of 0.75 kmol of hydrogen and 0.25 kmol of nitrogen occupies 0.085 m3 at 25degreec
A piston-cylinder device initially contains 0.4 m3 of air at 100 kPa and 80°C.The air is now compressed to 0.1 m3 in such a way that the temperature inside the cylinder remains constant. Determine the work done during this process.
Calculate the theoretical power in kW to 1 DP developed by a fluid motor. The formula is: theoretical power = Volumetric Displacement * Angular Speed * pressure where the volumetric displacement = 102 cubic centimetres / revolution, the Angular Speed..
A micro channel 10 µm tall, 50 µm wide, and 2 cm long is used for analysis of bradykinin, a small peptide with a molecular weight of 1.06 kDa (1 Da = 1 g/mol). What is the morality of the bradykinin sample (i.e. convert µg/mL to M)?
a gas in an insulated tank is separated from an evacuated region by a membrane. the membrane is removed and the gas is
a hair dryer is basically a duct of constant diameter in which a few layers of electric resisiotrs are placed. a small
the inside dimensions of a refrigerated box is 2m x 1 m x 1.2 m. it is covered with insulation 50 mm thick and then a
consider 2 kg of butane at pressure of 7.6 mpa in a rigid tank of 0.008 m3 volume.a calculate the temperature k of
piston cylinder contains 1 kg of water. initially the water is at 200 kpa 20 degrees celsius. water is now heated until
Consider a material composed of equal volumes having different yield strengths, YB = 1.5YA, but the same elastic moduli, EA = EB. Assume that during strain- ing both regions undergo the same strains (εA = εB ) and that there is no strain- hardening i..
Plot the engineering stress-strain curve. Determine i. Young's modulus, ii. the 0.2% offset yield strength, iii. the tensile strength, iv. the percent elongation, and v. the percent reduction of area.
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