Use the SMART problem-solving methodology in determining the damping constant of the dashpot as shown in figure 1-37. The dashpot consists of a piston of diameter 50 mm and length 70 mm, moving with velocity vO in a cylinder filled with a liquid of viscosity 0.17 Pa-sec. Let the clearance between the piston and the cylinder wall be 0.3 mm. F dy 2
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- A temperature scale of certain thermometer is given by the relationt = a ln p + bwhere a and b are constants and p is the thermometric property of the fluid in the thermometer. If at the ice point and steam point the thermometricproperties are found to be 1.5 and 7.5 respectively what will be the temperature corresponding to the thermometric property of 3.5 on Celsius scale.A tank 3.5 m long and 2.5 m wide contains alcohol of relativedensity 0.82 to a depth of 3 m. A 50 mm diameter pipe leadsfrom the bottom of the tank. What will be the reading on agauge calibrated in Pa connected at a point (a) 150 mm abovethe bottom of the tank; (b) in the 50 mm diameter pipe, 2 mbelow the bottom of the tank; (c) at the upper end of a 25 mmdiameter pipe, connected to the 50 mm pipe 2 m below thebottom of the tank, sloping upwards at 30◦to the horizontalfor 1.2 m and then rising vertically for 600 mm? What is theload on the bottom of the tank?Figure 0 shows the change in density of a newtonian fluid with temperature, ing/m^3.Falling spere experiments give average times of 0.2s @ 10 c and 0.23s @ 20 cUsing the equation u=K(ps-pf)tWhere K is found to be 1.34Ps=2300 kg/m3Calculate the viscosity of the fluid at 20 c and 10 c
- The surface tesnion of waterr in contact with air at 20deg C is given at 0.0716 N/m. The pressure inside a droplet of water is to be 0.0147 N/cm^2 greater than the outside pressure, calculate the diameter in mm of the droplet of water. a.2.43 b.4.62 c.3.60 d.1.94A glass tube of 8 mm ID is immersed in a liquid at 20°C. The specific weight of the liquid is 20601N/m3 . The contact angle is 60°. The capillary rise was 1.82mm. Determine the value of surface tensionConsider a thin-walled, fi xed-volume container of volume V that holds an ideal gas at constant temperature T. It can be shown by dimensional analysis that the number of particles striking the walls of the container per unit area per unit time is given by nv-/4, where as usual n is the particle number density. The container has a small hole of area A in its surface through which the gas can leak slowly. Assume that A is much less than the surface area of the container. (a) Assuming that the pressure inside the container is much greater than the outside pressure (so that no gas will leak from the outside back in), estimate the time it will take for the pressure inside to drop to half the initial value. Your answer should contain A, V, and the mean molecular speed v-. (b) Obtain a numerical result for a spherical container with a diameter of 40 cm containing air at 293 K, if there is a circular hole of diameter 1.0 mm in the surface.
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- A gasoline engine is at a location where the temperature is measured to be 14.2 °C and produces 347 KW at 5800 rpm while consuming 0.0184 kg's of fuel. During operation, data shows that its mechanical energy loss is 18 %, the actual volume of air going into each cylinder is 80% (the volumetric efficiency has a negligible variation), and the actual fuel-to-air ratio is 0.065. What were the engine parameters at sea level conditions if the pressure here is 100.3 kPa and the temeratur here is 18 Uc hotter than that of the alevated conditions? Determine at sea-level conditions the ISFC in ka/kW-hr Use four (4) decimal places in your solution and answer.A gasoline engine is at a location where the temperature is measured to be 14.2 °C and produces 347 KW at 5800 rpm while consuming 0.0184 kg's of fuel. During operation, data shows that its mechanical energy loss is 18 %, the actual volume of air going into each cylinder is 80% (the volumetric efficiency has a negligible variation), and the actual fuel-to-air ratio is 0.065. What were the engine parameters at sea level conditions if the pressure here is 100.3 kPa and the temeratur here is 18 Uc hotter than that of the alevated conditions? Determine at sea-level conditions the ISFC in ka/kW-hrA journal bearing is used to provide lateral support to a rotating shaft as shown in Fig. 1.43. If the radius of the shaft is R, angular velocity of the shaft is radial clearance between the shaft and the bearing is d, viscosity of the fluid (lubricant) is and the length of the bearing is l, derive an expressionfor the rotational damping constant of the journal bearing. Assume that the leakage of the fluid is negligible Can I please have an explanation for every process 'till the end. Thank you