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A ski lift has a one-way length of 1495m and a vertical rise of 285 m. The chairs are spaced 23 m apart, and each chair can seat three people. The lift is operating at a steady speed of 12 km/h. Neglecting friction and air drag and assuming that the average mass of each loaded chair is 282kg, determines the power required to operate this ski lift. Also estimate the power required to accelerate this ski lift in 4.7 s to its operating speed when it is first turned on
solid particles having a size of 0.18 mm a sphericity shape factor of 0.91 and a density of 1090 kgm3 are to be
a 1-kg disk slides on a smooth horizontal table and is attached to a string that passes through a hole in the table.a
the diagonal of a long triangular bar 45-45-90 triangle section is well insulated. while sides of equivalent length are
you deposit 10000 in a savings account that earns 7.5 simple interest per year. what is the minimum number of years you
The unit cell for uranium has orthorhombic symmetry with a, b and c lattice parameters of 0.286, 0.587, 0.495 nm, respectively. If its density, atomic weight, and atomic radius are 19.05 g/cm3, 238.03 g/mol, and 0.1385 nm, respectively, compute th..
Determine the resulting stress equations for σx, σy and τxy given the Airy's stress function ? = a1x^4 + a2(x^3)y + a3(x^2)(y^2) + a4x(y^3) + a5(y^4), where ai are constants. Also determine, if any, the restrictions between constants.
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consider a newly designed structure. the capacity of the structure is estimated to be c-bar 12500 kips and the
a gearmotor operating clockwise at 180rpm is coupled through a no. 80 chain drive tgo an escalator. the drive sprocket
an important radionuclide produced in water-cooled nuclear reactors is 16n which has a half-life of 7.13 s and emits
a he-xe mixture containing .75 mole fraction of helium is used for cooling of electronics in an avionics application.
air is compressed at steady state from 1 bar 300 k to 6 bar with a mass flow rate of 4 kgs. each unit of mass passing
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