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An air plane with constant altitude and velocity is being detected by a radar. The radar keep computing the distance D between plane and radar, angle θ the angle between line connecting radar and plane and the line of ground, and the rate of change of θ, θ'. In terms of θ, θ', D, find the velocity of the plane.
the motion of a particle is defined by the relation x6t2-840cospit where x and t are expressed in inches and seconds
a piston cylinder containing ar at some initial temperatureto is allowed to cool. once the volume of the cylinder
a worm gear set has a velocity ratio of 0.05. the worm has two teeth a lead of 3 in. and a pitch diameter of 1.5in.
a mass of 4.0 kg of r-134a at p1140 kpa and t1 20 cis contained in a gas tight frictionless piston cylinder device. the
a highway sign experiences a wind force f 5i - 12j - 3k n at its center of gravity 0 8 8 m. determine the moment of
consider the thin-walled beam section illustrated in the figure below. the beam has a vertical load of v 500 kn acting
consider a thermal energy reservoir at 1000 k that can supply heat at a rate of 100000 kjh. determine the exergy of
chemical civil and mechanical engineers must often determine the power required to pump a fluid through a series of
a 5 ft3 tank containing steam at 14.7 psia 1 quality is fitted with a relief valve. heat is transferred to the tank
A heat pump with a COP (coefficient of performance) of 2.8 is used to heat an air-tight house. When running, the heat pump consumes 5 kW of power
a thin 1 mm thick ?-iron membrane at 250degc is subjected to an atmosphere of hydrogen gas on one side and the
a fireman is soaking a home that is close to a burning building. to prevent water damage to the neighboring home he
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