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A sandbag is dropped from a balloon which is ascending vertically at a constant speed of 6m/s. If the bag is released with the same upward velocity of 6m/s when t=0s and hits the ground when t=8s, neglecting air resistance, find: a) the speed of the bag just before it hits the ground b) the altitude of the balloon when it is dropped . PLEASE SHOW ALL WORK!!
a 5.00in wide x .25in thick flat steel plate steps down to a width of 2.50in and is subjected to axial force. there is
estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation
a solid shaft l 1.9 m long is supported between two bearings. the shaft rotates at 250 rpm. a 20 degree involute gear
an electric motor weighing 750 lb and running at 1800 rpm is supported on four steel helical springs each having eight
an airplane is traveling at a constant speed of 200 ms. air enters the jet engine at the rate of 40 kgs while the
The separator produces 43,150 scf/d of 0.724 gravity gas, and the stock tank vents 7240 scf/d of 1.333 gravity gas. What is the formation volume factor of the oil? What is the solution gas-oil ratio? Which of the previous answers applies only at t..
a spring ab of constant k is attached to a support a and to a collar of mass m. the undeformed length of the spring is
an air conditioner operating at steady-state takes in moist air at 27 oc 1 bar and 70 relative humidity. the moist air
A long rectangular bar 20 mm wide and 10 mm thick made of hot-rolled 4340 carbon steel (Sy = 860 MPa, K1c = 99 MPaÖm), is found to have a centrically located through-thickness crack 8mm wide. Is it best to a) leave the crack alone, b) drill a 5 mm di..
determine the terminal velocity of a 75-mm diameter sphere made of solid aluminum specific weight26.6knm3 in free fall
drag measurements were taken for a sphere with a diameter of 5 cm moving at 4ms in water at 20 degrees celsius. the
a blower handles 1 kgsec of air at 20 deg c and consumes a power of 15 kw. the inlet and outlet velocities of air are
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