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The bicycle and rider start from rest at the top of the hill. Show how to determine the speed of the rider when he freely coasts down the hill. Use appropriate dimensions of the wheels, and the mass of the rider, frame and wheels of the bicycle to explain your results.
a freely moving piston cylinder device containing steam at 270 degrees celsius and 1000 kpa is taken outside ona cold
a carnot engine produces 30 hp while operating with an efficiency of 32. if the engin rejects heat to the atmosphere at
a c-130 pilot desires to fly a low-level navigation mission at 4 n milesmin 240 kn ground speed. winds are forecast out
A spherical water droplet having a diameter of 1.3 mm is allowed to fall from rest in atmospheric air at 1 atm and 20C. Estimate the velocities the duplet will attain after a drop of 30, 60, and 300 m.
steam having pressure 4.0 mpa and temperature of 880 k enters the turbine installed in a power plant at the rate 500
A collar B of weght W can move freely along thevertical rod. The constant of the spring is k and the spring is unstretched when theta=0. Derive an equation in W thrta k and l that must be satisfied when h collar is in equilibrium.
All calculations and assumptions must be provided together with a full explanation of all the terms
if a particles position is described by the polar coordinates r 2 sin 2u m and u 4t rad where t is in seconds
a piston-cylinder device has nitrogen gas at 160 kpa and 158oc. the 23-cm diameter piston initially pushes against a
a barometer is used to measure atmospheric pressure contains mercury with a density of 13590 kgm3. if the local
assume that the heat treatment supervisor in charge of processing the some gears is on an economy program directed
a closed rigid container contains water at 100 degrees celcius 70 quality. the volume of the container is 0.2m3. the
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