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an electric motor converts electricity to rotating shaft work with an efficiency of 54 the rotating shaft turns the
pumps are generally used to increase the pressure of a liquid this is done by converting rotating shaft work within the
a high-speed elevator is being designed that must be able to travel at a maximum speed of 115 fts you are asked to
the crystal structure of iron is bcc at temperatures below 912degc and fcc above 912degc calculate the weight of one
combustion in a cylinder causes the pressure to increase which moves the piston a distance x of 7 inches the piston is
you arrive home from a winter trip and turn on your baseboard resistance coil heater to warm the room it remains on for
the cold cranking amperes cca of a conventional lead-acid automobile battery is the amount of current the battery can
the useia reported that in 2011 the average american household consumed 11280 kwh for the year on the outskirts of a
a radiator wall measuring 2 m by 3 m wxh is held a temperature of 125 degc straight aluminium fins k 175 wmk are to be
a rocket is launched horizontally x direction at an initial velocity of 100 ms and travels along a parabolic path given
scientists have engineered a new hydrocarbon fuel that generates 4100 btu from every fluid ounce that is burned at room
a helical compression spring made from hard drawn wire needs to be designed to fit inside a 50mm cylindrical cavity and
a water pump increases water pressure from 10 psia to 50 psi determine the power input required in hp to pump 12 ft3s
a composite wall consists of a 1 mm-thick stainless steel plate aisi 316 2 cm of plywood and 2 cm of low-density
what value of g makes the two series of cash flows described below equivalent at an interest rate of 3 per year
consider a 1000-w iron whose base plate is made of 5 cm thick aluminium alloy 2024-t6 p 2270 kgm3 cp 875 jkgk alpha
water flows from the bottom of a large tank where the pressure is 120 psia to a turbine located 65 ft below the bottom
the 60-w fan of a central heating system is to circulate air through the ducts the analysis of the flow shows that the
a power cycle has a thermal efficiency of 40 and generates electricity at a rate of 100 mw the electricity is valued at
a weather balloon carries a mercury barometer in order to determine altitude as a function of flight time at a
a manometer on the discharge pipe of a pump handling 84m3min of water shows a pressure of 37105 pa the vacuum gage on
a mortar fires a projectile across a level field so that the range r is maximum and equal to 915 m find the time of
benzene p 54 lbft3 at 100 f is pumped at a rate of 40 gpm the reservoir is open to atmosphere and below the pump
a solid round steel shaft having an outside dameter of 2002 in is press or force fitted into the 200 in hole in a gear
an air bubble with a radius of 05 cm is released from the regulator of a scuba diver swimming 30 m below the sea