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the tensions of a flat belt are;right side 800n and slack side 300n. the angular speed n and diameter d of the pulley are 400 rev/min and 30cm respectively. if the coefficient of friction between the belt and the pulley is 0.7 and the mass of the belt is 2.1kg/g,including centrifugal tension, determine (a) initial tension of the belt (b) angle of lap in degrees (c) power transmitted (d) maximum power)
1. Locate all the instantaneous centres of the mechanism as shown in Fig.. The lengths of various links are: AB = 150 mm ; BC = 300 mm ; CD = 225 mm ; and CE = 500 mm. When the crank AB rotates in the anticlockwise direction at a uniform speed of 240 r.p.m. ; find 1. Velocity of the slider E, and 2.Angular velocity of the links BC and CE.
A fin in the shape of an upright cone with a fin root diameter of 2 cm and a length of 30 cm. The convection heat transfer coefficient is 100 W/ m² and can be considered constant and uniform across the surface of the fin. The conductivity, density and density of the fin material are 200 W/m.K, 900 J/kg.K and 2700 kg/m², respectively. The temperature of the fin roots and ambient air were 100 and 25 ° C, respectively.
a. Make a meshing of temperature distribution calculations by placing the nodal points at the root of the fin, tip of the fin, and along the length of the fin with a uniform distance between. Make the number of your elements as much as 15 nodes and place the boundary between elementsxactly in the middle plane between
b. Derive the discretization equation around the ith nodal point of the fin root. You can start thew twodjacent nodes. analysis the Fourier equation. If ther processs stationary.
c. Calculate the discretization equation around the nodes to nomor (11), and (7)
A drinking container has a parabolic cross section according to the x equation (the yz plane is the symmetrical plane of the drinking place and the z-axis stretches in the direction of the drinker's axis) The drinking place is 1 meter long, with both vertical end walls, and the greatest depth is 40 cm. With the exact analytical method, calculate:
a. The volume of drinking water that can be accommodated by drinking containers (in liters
b. The amount of force due to water gage pressure on the end wall of the drinking place (in N)
c. Using the numerical method and the help of the Matlab function calculate the force magnitude use the integers that got fromq questionpoint b.
Calculate the change in internal energy, heat transfer and change in enthalpy for 0.5 kg of air expanding according to law PV1.2 = C from 1 MPa and 300⁰C to 100 kPa. What will be the work done by air during expansion? [ Cv = 0.718 kJ/kg K for air]
A piston cylinder device contains steam at 60 psia and 320F, and the temperature is increased to 400F through heat transfer. If the mass of the steam in the device is 15lbm and the weight of the piston is constant throughout the process. Calculate the work done during the process in Btu
The potential difference between two points in an electric field is 8.0 v. How much work be done to move a charge of 400×10⁶ C between these points?
A ball is kicked horizontally at 8 m/s from a cliff 80 meters high. Determine the velocity of the ball when it reaches the ground.
A cylindrical pipe with water flowing downward at 0.02 m3/s having top diameter of 0.08 m, bottom diameter of 0.04 m, and an elevation of 1.5 m. Determine the fluid pressure difference, kPa, across the pipe.
A water tank is filled using two inlet pipes, with velocity of 5 m/s at section 1 and volumetric flow rate of
0.012 m3/s at section 3. If water level h is constant, determine the exit velocity at point 2.
