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A person with a mass of 85 kg wearing snow skis is gliding down a long slope at an angle of 15 degrees. Each ski is 185 cm lonf and 10 cm wide. the pressure of the skis on the snow melts a thin layer of water o that a 0.1 mm layer of water exists under each ski. The water layer is at a temprature of 0 C. Determine the maximum velocity that the skier will achieve without using poles. Neglect the drag force of the air on the skier.
a piston-cylinder device initially contains steam at 200 kpa and 200c. a linear spring is touching the piston but
the concrete beam is reinforced with three 20-mm diameter steel rods. assume that the concrete cannot support tensile
a room that normally contains 40 people is to be air-conditioned with window air- conditioning units of 5-kw cooling
a transparent rigid container is filled with 2 gallons of water. initially the pressure is measured to be 10.2 psig
(a) determine the first three natural frequencies of the tube (b) Draw the standing wave pattern for both pressure and velocity (c) repeat parts a and b if the right one end is attached to an orifice (Hint: consider the impedance of the orifice to..
natural gas at 70 f and standard atmospheric pressure of 14.7 psi is compressed isentropically to a new absolute
an ideal gas of mass 2 kg is contained within a rigid cylinder and undergoes a cycle which consists of three separate
a 6 nominal pipe size schedule 40 pipe hase a chamfered entrance and 200 ft long. the velocity is 20 ftsec. after the
in pure copper at room temperature there is about one atom vacancy every 1010 atom sites. at the melting temperature
steam exits a turbine with a mass flow rate of 2x105 kgh at a pressure of 0.008 mpa quality of 94 and velocity of 70
in an overhead smash a tennis player strikes the ball with the center of the head of the racquet. say the contact
steam at 95 bar and 400 c is supplied in turbine. the condenser pressure is 0.035 bar. if the plant operates as a
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