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An electronic instrument, of mass 20 kg, is to be isolated to achieve a natural frequency of 15 rad/s and a damping ratio of 0.95. The available dashpots can produce a damping constant in the range 10 N-s/m to 80 N-s/m. Determine whether the desired damping ratio can be achieved using a passive system. If a passive system cannot be used, design a suitable active control system to achieve the desired damping ratio.
Suppose an object moves on a horizontal line. If the object starts from rest at the origin and it has an acceleration of 16t-t, Determine the total distance the object has moved when time is 2 seconds. Note the distance moved is not the position. For..
High school Yr 12 aeronautical Engineering Module - mechanics, PLease help- i seem to get the incorrect answer but didn't know where i have gone wrong?
Three springs anda mass are attached to a rigid, weightless bar PQ hinged at one end. How do I find the natural frequency?
feed at 10 ccelsius containing 20 solids enters an evaporator operating at 90 ccelsius. saturated steam90 quality
in order to increase production rate a reactor setpoint was increased from 160 psig to 190 psig. the reactor pressure
Consider an isotropic composite in which the spherical particles are silica with an elastic modulus of 80 GPa and a polymer matrix with an elastic modulus of 4 GPa. Determine the modulus of the composite for an inclusion fraction of 20% by volume as ..
In a heating/humidifying system moist air first flows through a heating coil and then through an air washer. The air enters the system at 55 °F dry-bulb temperature and 40 % relative humidity. The air exits the system at 90 °F dry-bulb temperature an..
Consider a cold air-standard Diesel cycle. Operating data at principal states in the cycle are given in the table below.For k=1.4 Cv=0.718kJ/(kg*k), and Cp= 1.005 kJ/(kg*K)
a sled is at the top of a snowhill that has a vertical height of 150 ft and slopes down with an angle of 20 degrees. if
at an amusement park there are 200kg bumper cars a b and c. that have riders with masses of 40kg 60kg 35kg
a small household refrigerator is used to cool 20 liters of water initially at 22c. the cop of the refrigerator is 2.40
a cubic inch of fe is subjected to a tensile stress of 25 ksi. take poissons ratio to be .291 and youngs modulus to be
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