A train moves with initial velocity 8 m/s 2 and accn = 2 m/s . Find : Velocity after it moves 30 m You may use any of the laws : 1- V2 = V1 V. + at 2 2- S = v, t + 0.5 at 0.5 a t 1 2 2 3- V. 2 V. = 2 a S
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- Two pumps (Pump A and B) have performance curves which can be approximated by the following equations: H_A = 340 - (1.2(Q^2)), in feet H_B = 360 - (2.5(Q^2)), in feet where Q is in ft^3/s. If pumps A and B were to operate in parallel as depicted in the figure below, at what head (in ft.) should either pump be operated?The diameter of pipe carrying water changes gradually from 20mm at A to 450mm at B. A is 4.57m lower than B. What will be the difference in pressure,in N/mm2, between A and B, when 0.176cu.m/s is flowing loss of energybeing neglected?This is the equations I learnt so far and can apply to this W = FS cos θ W = FS Kinetic Energy (KE = ½ mv2) & PE = mgh Eff= Wo/W& Eff=FoD0/ FiDi & Eff=AMA/IMA Momentum(P = mv) m1u1 + m2u2 = m1v1 + m2v2 Impulse(J = Ft = m Δv) Friction (F = μN) Power=Work/Time= Force x Displacement /Time
- Water of density ? =998.2kg/m3 flows through a fireman’s nozzle—a converging section of pipe that accelerates the flow. The inlet diameter is d1 = 0.100 m, and the outlet diameter is d2 = 0.050 m. The average velocity, momentum flux correction factor, and gage pressure are known at the inlet (1) and outlet (2). (a) Write an expression for the horizontal force Fx of the fluid on the walls of the nozzle in terms of the given variables. (b) Verify your expression by plugging in the following values: ?1 = 1.03, ?2 = 1.02, V1 = 3 m/s, P1,gage = 137,000 Pa, and P2,gage = 0 Pa.Water steam is running through the nozzle. Inlet pressure is P1=25 bars; T1=300C; V1=90m/s; A1=0.2m2. The exit parameters are: P2=11bars; T2=210C. The mass flow rate is m=2 kg/s. Determine: a.Exit velocity V2=?; b.Inlet and outlet diameters D1 and D2. show all stepsPls answer asap I will give good ratings A jet of water flows from left to right and hits a splitter block, as shown in the figure. Some of the jet is diverted upwards and some of it downwards. The incoming jet has a velocity U1=U1=1.6 m/s and a cross-sectional area A1A1. The jet that is deflected upwards has a velocity U2=U2= 0.7 m/s, a cross-sectional area A2=A2= 11 cm22 and is at an angle θ2=θ2= 35oo with respect to the horizontal. The jet that is deflected downwards has a velocity U3=U3= 0.9 m/s, a cross-sectional area A3=A3=14 cm22 and is at an angle θ3=θ3= 25oo with respect to the horizontal. The density of water is ρ=ρ=1000 kg/m33.see diagram attached and answer - A-Find the cross-sectional area of the incoming jet (in cm22) B- Find the horizontal force on the block (in Newtons) (Note: remember to convert the area of the jets from cm22 to m22!) c)The vertical force on the block is found to be FyFy. What velocity of the incoming jet (i.e. what value of u1u1) would be needed to…
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- The pressure loss p in a pipe is related to the flow rate Q by the equation P = KQ^n, where K and n are constants. If K = 190 x 10³determine the value for n when a flow rate of Q = 0.04 m³/s causes a pressure loss of 180 Pascals.Please indicate the given, assumption and illustration. A Jet plane having a wing area of 20 m2 and weighing 25 kN flies at 950 km/hr speed. The engine develops 8,500 kW and has a mechanical efficiency of 9%. With the specific weight of air at 12 N/m3, determine the following: A) The Coefficient of Lift (CL). B) The Coefficient of Drag (CD).A river reach had a flood wave passing through it. At a given instant the storage of water in the reach was estimated as 15.5 ha.m. What would be the storage in the reach after an interval of 3 hours if the average inflow and outflow during the time period are 14.2 m3/sec and 10.6 m3/sec respectively.