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the harmonic oscillator shown has a mass m = 5 kg, a spring with constant k = 4000 N/m, and a dashpot with a damping coefficient c= 20 N*s/m. calculate the amplitude F0 of the sinusoidal excitation force that is necessary to produce a steady-state vibration with a velocity amplitude of 10 m/s at resonance
What is the reaction that occurs with hexanal and propanol (give both the hemiacetal and acetal products)?
Three streams of polluted air are combined prior to treatment in an electrostatic precipitator (ESP). The flow and particulate concentration of each stream are 600 cfm at150 mg/m^3, 700 cfm at 200 mg/m^3, and 500 cfm at 1000 mg/m^3.
A disabled automobile is pulled by means of two ropes as shown. The tension in AB is 400 lb and the angle is 20. knowing that the resultant of the resultant of the two forces applied at A is directed along the axis of the automobile, determine by ..
Physics two skaters with masses of 65 kg and 45 kg, respectively stand 8.0 m apart each holding one end of a rope.
Determine the acceleration when t = 4 s, the displacement from t = 0 to t = 10 s, and the distance the particle travels during this time period.
Calculate the relative velocity of a solute front that is flowing through an aquifer. The organic carbon partitioning coefficient (Koc) is 6 mL/g and the friction of organic carbon in the soil is 2%.
disk of radius R=7 in. spins at a constant angular speed of w=500rpm in the clockwise direction. If the disk is released from rest far above the ground, what are the speed and acceleration of the disk's top C point after it has fallen h=3ft
a 110 cubic centimeter volume of clay weighs 145 g in its undisturbed state. when the clay specimen is dried it weighs 110.5g. what is the natural water content of the clay, and what is the degree of saturation Assume Gs=2.70
The yield stress for A-36 is 250 MPa. Using factor of safety against yield of 1.25, determine an appropriately sized beam such that the radius of curvature is not less than 140m. E= 200 GPa, G= 77.2 GPa.
A 1045 steel will be heat treated in air at 900 C. What is the carbon concentration at 0.4 mm below the surface after 6 hours
The maximum vertical load and horizontal load have been identified and shown in the figure. Under this loading condition, you are asked to determine the horizontal deflection of joint C.
If there are 50 vehicles on a 4000-ft highway lane and the average time headway between two adjacent vehicles is 2.2 seconds. A) Calculate traffic density in vehicle/mile (vpm) and average space headway in feet/vehicle (fpv).
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