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Determine the speed vA and angle uA at which the ball was thrown. It is thrown at an initial height of 1.2 meters and lands 50 ft away.
If the total flow rate of gas out of the stack is 190 standard cubic meters per second, calculate the total mass emissions of particulates out of the stack in kg/day.
The velocity of the system changes from 12.7 ft/s to 55 ft/s and the elevation decreases by 127 ft. The acceleration of gravity is 32.0 ft/s^2. Determine the change in internal energy of the syst
What is the increase in internal energy in ft-lbf taking the object and the liquid as the system? Neglect the change in potential energy.
Calculate the roof temperature for the following condittions. a. a clear sunny day with incident solar radiation flux of 600 W/m^2 and an effective ambient sky temperature of 40K.
Determine the heat loss through a 4m high 10 m long wall of the furnace considering conduction and convection. The inside and outside heat transfer coeficients are 100 and 15 W/m^2*K respectively
When the vessel is under 9 psi of vacuum, the height of the fluid column is 83 cm. If the vessel partially loses vacuum and is now under 1.0 psi of vacuum, what will be the new height of fluid co
More air is added until the pressure and temperature rise to 35 psia and 90°F. Determine the mass of air added to the tank. Approximate answer: 10 lbm.
The experiment is repeated with a metallic sphere of the same diameter, but unknown composition with a mass of 1.263 kg. If the same observed temperature change occurs in 4.59 s, what is the spec
The disk is horizontal and turns so that d theta/dt = ct about the vertical. Find the acceleration of the marble. b. At what time does the radial acceleration vanish?
Assuming the average fuel composition and energy content are CH2 and 15,000 Btu/lb, respectively, calculate the U.S. contribution to global carbon emissions in 2008, Give your answer in Gt of carb
If coal that has 2.25% sulfur and a heat content of 13,000 Btu/lb is burned in a 40% efficient 400-MW plant, estimate the allowable rate of sulfur dioxide emissions in kg/day under federal NSPSs.
Determine the upper surface temperature of the wafer. Pyrometer is a non-contacting device that intercept and measures thermal radiation. The device is used to determine the temperature of an object
Determine the pressure on the bottom surface of the fluid in pascals. Also show the distribution of pressure on the entire vertical side of the tank.
The point starts moving at t=0. Find the total distance traveled by p when it passes through the origin (counting the start as the first pass) for the third time.
Determine the distance it travels before it stops. Express your answer using three significant figures and include the appropriate units.
Air enters a compressor at 14 psia, 80 F with negliible speed and is discharged at 70 psia, 500 F with a speed of 500 ft/s. If the power input is 3200 hp and the flow rate is 20 lbm/s, determine
Compressed liquid water at 42 C and 8 MPa steadily flows into a boiler and exits as a saturated vapor at 8 MPa. The mass flow rate is 4.5 x 105 kg/hr. Determine the amount of heat transfer [MW] i
Find the doubling time [yrs] and estimate the energy consumption rate [MTOE] in the year 2050. Also, assuming that current US coal reserves supplied all the fuel energy for the US, estimate how l
How long would it take to consume all available resources if the consumption growth rate of 2.5% per year is maintained?
Find a)the velocity when x=2meters. b) the position were the velocity is again zero. c) the position where the velocity is at its max.
The surface charge density is n. Derive an expression for the electric field E at height z above the centerline of the sheet.
The mercury in this leg stands 48in below the water. What is the height of mercury in the other leg, which is open to the air? The specific gravity of mercury is 13.6.
Due to compressibility of oil, the piston retracts 0.01 inch. If the volume of oil under compression is 10 in^3 , what is the bulk modulus of the oil in units of psi?