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Some parasailing systems use a winch to pull the rider back to the boat. During the interval when q is between 20 and 40 degrees, the length of the rope follows the relationship r = 200 - t^(3/2) (where q = 20 degrees at t=0) and the angle increases at the constant rate of 2 degrees/sec. If the boat is travelling at a constant rate of 20 knots, (a) plot the magnitude of the velocity of the parasailer as a function of q, (b) determine the total acceleration of the parasailer at t= 5 sec.
consider entropy balance equation for human engines. humans loose heat at the rate of 80 w from the body which is
find the following equivalent amounts if the interest rate is 8 compounded annually.a the present value of series of
a food liquid with a viscosity of 0.0209 lbf-sft2 is being pumped through a two-inch stainless steel pipe at a rate of
burning one metric ton 1 000 kg of coal can yield an energy of 3.30x1010j. fission of one nucleus of uranium235 yields
a rocket launches an unpowered space capsule at point a with an absolute velocity va 8560 mihr at an altitude of 27
a piston cylinder arrangement originally contains 0.1 kg of saturated water vapor at 10 bars. a line with steam flowing
Effect of pressure on temperature and density of air for an adiabatic process, The pressure is to be raised from atmospheric to 7 psi (4.83 bar). The process is adiabatic, and the volume is constant and unknown.
How do you the bubble point temperature and Vapor mole fractions at the bubble-point for a mixture at 690kPa that is 10.0mol % ethylene, 40.0 mol % ethane, and 50.0 mole % propane. Use the Depriester chart.
from fundamentals of engineering thermodynamics book 9.85 for the turbojet in problem 9.84 plot the velocity at the
If the truck starts from rest when xD is zero, and moves forward with a constant acceleration of aD = 5 m/s2, determine the speed of the block at the instant xD = 3 m.
when the discharge upstream is suddenly increased to 70 cfs/ft. What is the speed and height of the surge wave
the area of the pacific ocean is 64186000 square miles and its average depth is 12925 ft. assuming that the weight per
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