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Calculate the time rate of change HB of angular momentum about point B where the particle passes the bottom of the guide at C
The cylinder reaches 300 C, while a heat loss of 90kJ occurs simultaneously through the cylinder walls. Determine the amount of mass entering the cylinder from the line, in kilograms.
Determine the change in momentum in each vehicle. Determine the average force acting on vehicle 1 during the 0.15 seconds.
A water faucet is to be added by running a line from a water main at 300 kPa. The diameter (cm) of the cast iron pipe is to be determined. A gate valve is placed near the attachment to the water mai
A 3-phase 25 kVA, 208 V, 60 Hz, alternator (generator) is operating under balanced conditions and supplies a current of 20 A per phase at 0.8 lagging power factor to a load at rated voltage.
The acceleration of a particle is defined by the relation A=25-3x^2 where A is expressed in m/s^2 and X in meters. The particle starts with no initial velocity at x=0. Determine position where the v
Determine the minuimum coeffeicent of static friction between A and B required for A not to slide with respect to B if θ = 23. Friction between the sled and the incline is negligible.
A high school project involves building a model ultralight airplane. Some of the stu- dents propose making an airfoil from a sheet of plastic 1.5 m long by 2 m wide at an angle of attack of 12o.
Measurements of the power out of the turbine indicate that it is 4 MW. Determine the heat loss from the turbine (Btu/s).
Determine the magnitude and line of action of the total resultant force from all fluids acting on the door. Place the origin of your coordinate system 1 m below the free surface.
A jet is coming out of a dive and a sensor in the pilots seat measures a force 800lbs for a pilot whose weight is 180lbs, if the jet intrustments indicates that the plane is traveling at 850 mph, de
An ideal Diesel cycle with air as the working fluid has a compression ratio of 20 and a cutoff ratio 2.1. At the begining of the compression process, the working fluid is at 14.7 psi, 78 degrees F,
The mass flowrate of the 134a is 3 kg/min. What compressor power is needed to drive this system? What is the COP? How quickly could this refrigerator freeze a typical tray of ice cubes?
A stream of methane initially at 60 °F and 400 psia is compressed in a single stage compressor to 1000 psia by a compressor with an operating efficiency of 0.85.
If the tile-iron has a square surface area 254mm to the side, how much energy has been removed from it during the time it has taken to lift the tile?
An air intake duct has a 14'x14' opening, the duct is 18' long with an exaust opening at the other end that is 14'x1' giving a 14 to 1 ratio. As a percentage what is the increase in wind velocity c
Two blocks of steel (Cp=0.11 Btu/lbm ºF), one at 800ºF and the other at 300ºF are brought into contact in an insulated container and allowed to reach thermal equilibrium. What is the
For a situation where safety rules require that the burst pressure of a tank is at least four times the maximum internal pressure expected, determine the burst pressure requirement to be specified
An interest rate of 10% compounded continuously is desired on an investment of $15000. How many years will be required to recover the capital with the desired interest if $2030 is recived each year?
If the carbon dioxide behaves as an ideal gas, determine the amount of entropy produced in kJ/K assuming: constant specific heats with Cp=0.939 kJ/Kg K.
An enclosure box surrounds some electronics that draw 25 W of electrical power. For heat transfer we will just consider the biggest wall and ignore other sides, in this case.
A building wall is made of 200 mm of poured concrete on the outside, 100 mm of fiberglass insulation in the middle, and 15 mm of sheetrock on the inside.
An electric-powered water pump must fill up a 50,000 gallon elevated water tank in which the water averages 60 feet above the pump and water source.
Find the equal annual payment series that would be equivalent to the following increasing series of payments if the interest rate is 12% (a) compounded annually; (b) compounded continuously.
0.25 kg of red-hot (700 C) coals are taken from the fireplace and left in the middle of a room. The room is 3 m x 4 m x 2.6 meters high.