A solid circular disc of uniform thickness of 10 mm, radius 500 mm and mass 10 kg is used as a flywheel. If the flywheel rotates at 600 rpm then the kinetic energy of the flywheel is. Joules.
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- In an ore - mixing operation , a bucket full of ore is suspended from a travelling crane which moves along a stationary bridge . The bucket is to swing no more than 10 ft horizontally when the crane is brought to a sudden stop . Determine the maximum allowable change in Potential Energy per unit mass in ft-lb f /lb m for a given maximum speed v of the crane .A circular cylinder 400 mm in diameter and 750 mm long has 600 mm of its length submerged in kerosene (S.G. = 0.823). What is the specific weight of the cylinder? a. 1.86 KN/m° C.) 0.608 kN/m3 b. 6.45 kN/m3 d.) 0.805 kN/m3CO2 is compressed in a cylinder through an equilibrium process from initial conditions of P1 = 100 kPa and V1 = 0.004 m3, to a final pressure of P2 = 500 kPa. During the process, pV1.22 = constant. Compute the work done.
- Convert a pressure head of 10 m water column to kerosene of specific gravity equal to 0.8 and to Carbon tetrachloride of specific gravity 1.61. Compute the number of watts which are equivalent to 1 horsepower. (1 watt = 10^7 cm-dynes per sec; 1 hp = 550 ft-lb per sec.)The tank is filled with water and kerosene to the depths shown. Determine the total resultant force the liquids exert on side AB of the tank. The tank has a width of 2 m. Take ρw = 1 000 kg/m3, ρk = 814 kg/m3.
- The following information is given for n-pentane at 1 atm:boiling point = 36.20°C ΔHvap (36.20°C) = 357.6 J/g melting point = − 129.7°C ΔHfus (−129.7°C) = 116.7 J/g specific heat gas = 1.650 J/g ⋅ °C specific heat liquid = 2.280 J/g ⋅ °C A 26.10-g sample of liquid n-pentane is initially at −51.40°C. If the sample is heated at constant pressure (P = 1 atm), how many kJ of energy are needed to raise the temperature of the sample to 65.30°C?An atomizer forms water droplets 45μm in diameter. Determine the excess pressure within these droplets using σ = 0.0712 N/m.A centrifuge bowl with internal diameter of 150mm is turning at 8000r/min is used to separate chlorobenzene, with a density of 1109 kgm3, from an aqueous wash liquid having a density of 1020 kgm3. The free liquid surface inside the bowl is 40mm from the axis of rotation. If the centrifugal bowl is to contain equal volumes of the two liquids, what should be the radial distance from the rotational axis to the top of the overflow dam for heavy liquid
- A column with an internal diameter of 50 cm and a height of 2 m is packed with spherical particles 3 mm in diameter so as to form a packed bed with ω= 0.45. Estimate the power required to pump a Newtonian liquid (μ = 70 × 10−3 kg/m·s; ρ = 1200 kg/m3) through the packed bed at a mass flow rate of 1.2 kg/s.The jet of water from a nozzle discharging into air has a diameter of 6 in. and a mean velocity of 120 ft per sec. Compute the velocity head and the horsepower in the jet.rate of jet = 350 Liters/sec velocity of jet = 30 meters/sec *The jet guts the blade moving in the same direction.* Velocity of blade = 20 meters/sec The deflection angle of blade = 150 degrees *Neglect the head losses on the base* Given the figure below, 1. What is the resultant dynamic force? 2. What is the power developed?