If velocity is zero over 1/3rd of a cross section and is uniform over remaining 2/3rd of the cross-section, then the correction factor for kinetic energy is
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- A 75 mm jet has a velocity of 35 m/s. It strikes a blade moving in the same direction at 20 m/s. The deflection angle of the blade is 150°. Neglecting frictions, calculate:A). The horizontal component of the force exerted by the water on the blade.B). The vertical component of the force exerted by water on the blade.A projectile is fired up the inclined plane at an initial velocity shown. Compute the maximum height z measured perpendicular to the incline that is reached by the projectile. Neglect air resistance.An object has a specific volume of 0.004 m3/kg. Compute its specific gravity.
- The space between two flat plates of 1 cm in length has been filled with a liquid whose relative density is 0.8. Determine the kinematic viscosity if the force required to displace the 4000 cm ^ 2 top plate at a speed of 20 cm / s is 0.07N.Compute the product of inertia with respect to the x- and y-axes.A body having a mass of 46 Kg rests on a horizontal plane for which the coefficient of friction f=0.4. A force P acts on the body at an angle of 20⁰ with the horizontal. Find its magnitude for impending motion.
- Locate the Centroid of the volume of the solid shown where a hemisphere ofradius r is mounted on top of a right circular cylinder of the same radius and altitude h.Which statement is not correct regarding inviscid regions of flow? (a) Inertial forces are not negligible. (b) Pressure forces are not negligible. (c) Reynolds number is large. (d ) Not valid in boundary layers and wakes. (e) Solid body rotation of a fluid is an example.A particle travels along a straight line with an acceleration of a = (13 - .2s) m/s2 , where s is in meters. Determine the velocity of the particle when s = 10 m if v = 5 m/s at s = 0.
- Find the following using the photo below. e. If a = 2 m/s2, determine v at s = 4 m if v = 3 m/s at s = 0.f. If a = 4 m/s2, determine s when t = 3 s if v = 2 m/s and s = 2 m when t = 0.g. When t = 0 the particle is at A. In four seconds it travels to B, then in another six seconds it travels to C. Determine the average velocity and the average speed. The origin of the coordinate is at O.DYNAMICS OF RIGID BODIES a. Determine the velocity of the crate after it has travelled 10m down the incline. b. Determine the distance it travels before it stops.A homogenous cylinder with 0.4m radius and 2m length is floating on water. The depth of the cylinder that is submerged into water is 0.5m. Solve the distance between the metacenter and the center of buoyancy (dMB) and the distance between the center of buoyancy and the center of gravity (dBG). Take note that the length of cylinder is parallel to the water surface.