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Question: A projectile of mass m = 10 kg traveling with the velocity v = 50 m/s strikes and becomes embedded in a massless board supported by a spring of stiffness k =.6.4 x 104 N/m in parallel with a dashpot with the coefficient of viscous damping c = 400 Ns/m (Fig.). Determine the time required for the board to reach the maximum displacement and the value of the maximum displacement.
What is the total rate of heat transfer to the air? What is the pressure drop associated with the airflow?
Principles of Engineering Economic Analysis-Time value of money-use of gradient factor is expected
The joints are butt welded with an efficiency of 75%. The allowable tensile stress for the steel plate is 125 MPa. Calculate the required thickness of the walls.
a channel of square shaped cross section30mm by 30mm carries water at a rate of m 2kgs. the channel length is l 10m
A drainage structure for an industrial park has a trapezoidal cross-section similar to that shown in Fig. 14.2(c). The bottom width is 3.50 ft and the sides are inclined at an angle of 60° from the horizontal. Compute the hydraulic radius for this..
Determine the force in hydraulic cylinder AB for the position shown if the tree weighs 6000 lb. Determine the required pressure on the 4.72-in. diameter piston of the cylinder.
Atmospheric pressure is101.3 kPa (or else 14.69 psi). You take a vessel, and pressurise it to 350 kPa (or 50.75 psi) above the atmospheric pressure, and connect pressure gauges to the vessel, calculate What is the gauge pressure? What is the absolute..
an ideal gas flows through a device at steady state. the temperature of the gas at the inlet is 20c and its velocity
describe fully what happens when you cools down a melt of 40mol nio-60mol mgo. give the compositions of the phases and
an array of power transistors dissipating 5 w of power each are to be cooled by mounting them on a 25cm x 25cm square
Strain gages on the outer surface of a pressure vessel read e(l)=0.002 in the longitudinal direction and e(t)=0.005 in the circumferential direction. Compute the stresses in these two principal directions: E = 207GPa and Poisson's ratio v = 0.3. What..
Use finite volume to compute the steady-state temperature profile in the sheet relative to Tref. Use a thermal conductivity in the sheet of 205 W/m-K. Assume the properties of air are relatively constant (how accurate is this approximation?) in t..
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