In a given fluid, positive ions, each with three excess protons, move towards right at a steady rate of 4.5 x 10 ions per minute and negative ions, each with two excess electron, move towards left at a steady rate of 2.5 x 100 ions per minute. Determine the current directed to the right.

Cross-section of a beam 3) The rectangular tube cross-section of a beam, shown in the figure aside, is bent about a horizontal axis due to the bending moment of 899.5 Nm. Calculate the total force that is acting on the shaded portion of the cross-section of the beam. (Suggested time for solution is 25 minutes) 0.8cm C 4.6cm 0.8cm 3cm 0.8cm 0.8cm

2. What is the mass M that must be suspended at the left to hold the system in equilibrium in the position shown?

What is the mass M that must be suspended at the left to hold the system in equilibrium in the position shown? 50 M 15° 30kg 50kg

In the figure particle 1 of charge +4e is above a floor by distance d1 = 2.70 mm and particle 2 of charge +8e is on the floor, at distance d2 = 6.60 mm horizontally from particle 1. What is the x component of the electrostatic force on particle 2 due to particle 1? di Number i Units

Determine the magnitude of the reaction Ax (N) of the figure shown. 4 2,000 N 400N/m 1.5 m 600 N/m 3 m 4 m 1. 4 m 5 m

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Determine the magnitudes of F1, F2 and F3 for equilibrium of the particle. (Figure 1)

2. 0.1 m at a constant temperature and pressure seen in the figuren water flowing through a diameter pipe with a mass flux of 6000 kg/m's, then a 0.3 m diameterpipe with orifice attached to it it is transitioning to the line. The orifice-bound and manometer sIVisi ilcm between arms in the manometer containing mercury the difference has been observed to be. As a result of the measurements made the origins of permanent pressure loss, pressure loss It was found to be up to 81%. Accordingly; a) permanent pressure in the pipe due to orifice calculate the loss in terms of pascals (APK receiver). B) calculate the linear velocity value in the orifice (V)). orifis Drection of fow D, = 0.1 m D, = 0.3 m G. = 6000 kg / m2s h=1 cm Data: • Pau = 1000 kg / m2, = 13600 kg / m3 %3D

FLUID MECHANICS: THE ENERGY EQUATION: The attached image shows a common consumer product called a water pik. The device uses a motor to drive a piston pump that produces a jet of water (d = 3mm, T = 10oC) with a speed of 25m/s. Estimate the minimum electrical power in Watts that is required by this device. Hints: (a) Assume the power is only used to produce kinetic energy of the water in the jet. (b) In the time interval delta t, the amount of mass that flows out of the nozzle is delta m, and the corresponding amount of kinetic energy is (delta m V2/2)