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a 150 L helium tank contains pure helium at a pressue of 1825 psig. How many 3.5L helium balloons can be filled from the helium in the tank? (Assume an atmospheric pressue (14.7 psia) and a temp of 298K.
Ask question ellipse construction via foci method
The velocity of the bed is limited to a maximum value of 150 mm/s to the right and 300 mm/s to the left; the acceleration is successively equal to 150 mm/s^2 to the right, zero 150 mm/s^2 to the left, zero, etc.
Design a logic circuit that, when enabled with an active-high signal named en, will detect four different ranges of values for a 5-bit input number.
what is the second year book value for equipment with an initial cost of $11,000, a salvage value of 1,000 and a recovery period of 5 yrs for A. straight line depreciation. B. Double declining balance. C. MACRS
Find the heat transfer (in KJ/Kmol)from a steady-flow combustor if the products are at 1000 K and (a) complete combustion occurs; (b) 95% of the carbon is converted to CO2 and 5% to CO.
A construction firm purchased 3 tractors from a certain company. At the end of the fifth year, let E1, E2, E3 denote, respectively, the events that tractors no. 1, 2, and 3 are still in good operational condition.
Alkaloids are chemical compounds containing nitrogen that can be produced by plant cells. In an experiment, an insulated closed vessel 1.673 m3 in volume was injected with a dilute water solution containing two alkaloids: ajmalicine and serpentine..
A polymer that contains internal flaws 1.5 mm in length fails at a stress of 30 MPa. Determine the plane strain fracture toughness of the polymer. Assume a polymer specimen of "infinite" width.
Given the following data for a vertical curve of a road; G1=-2.5%, G2=+5.5% and station of PVI=250+50.At station 252+50, the vertical curve must intersect an existing road at elevation 48.48ft. the elevation on the tangent section at station 256+5..
an insulated tank contains pressurized air at 2000 kPa and 30 degrees celcius. The air is allowed to escape to the atmosphere (P=95 kPa, T=30 degrees celcius) until flow ceases. Determine the final temperature in the tank.
Determine total delay, maximum queue length, and the time that the 20th vehicle to arrive waits from its arrival to its departure.
acetic acid is a weak acid. Its Ka is 1.8(10^-5). For a concentration of 0.015 M, calculate the pH.
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