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A 2 cm horizontal jet of water with a velocity of 15 m/s is spraying onto a vertical plate attached to a cart moving opposite the direction of the water jet at 8 m/s. Determine the force required to keep the cart moving at a constant velocity. What is the power supplied to the cart? Assume the water splashes in all directions in the plane of the plate upon impact.
suppose we take 25 i.i.d observations from normal distribution with population standard deviation known to be 30.
in an effort to reduce the mass of an aluminum bulkhead for a spacecraft a machinist drills an array of holes in the
determine the radius of the crank r and the speed n of a slider crank mechanism used in a shaker table. it is required
a household refrigerator that has a power input of 80w assume constant work input over time and a coefficient of
determine the compressor work input requireed to compress steam isentropically from 100 kpa to 1 mpa assuming that the
steam turbine expands steam reversibly and adiabatically from 4Mpa,300C to 50C turbine exit. determine the work per kg of steam.
water is pumped from a lower reservoir to a higher reservoir by a pump that provides 21 kw of shaft power. the free
an aluminum pin fin has a diameter of 4 mm and a length of 20 mm. calculate the heat dissipated when the base
under proper conditions water hyacinths a floating plant will grow at such a rate that their dry biomass increase 5 per
a gate in the shape of a quarter-cylinder hinged at a and sealed at b is 3 m wide. determine the horizontal and
the assembly consisting of a uniform slender bar mass m5 and a rigidly attached uniform disk mass 4m5 is freely pinned
1 use boltzmann distribution to mathematically show that a two level laser system is not possible. calculate the ratio
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