What is the flow velocity at street level

Assignment Help Physics

Reference no: EM13340818

To pump out a subway, a pump is used that can increase the absolute pressureon the pool of water at the bottom of yhe subway to 400 kpa. 20 m above the water level at street level, the pressure on th water is atmospheric pressure, the water in the subway has a sustantial amount of salt and has a density of 1015 kg/m3. what is the flow velocity at street level( assume v1 is neglected)

Reference no: EM13340818

Questions Cloud

Complete the net present value analysis : Complete the net present value analysis showing that the investment should be undertaken - write a memo explaining why the company should make this investment and why the company should scrap its three-year payback rule.

Determine the time difference between two observers : A firework explodes 120 m above the ground. Determine the time difference between two observers hearing the explosion

Explain overall reaction for the corrosion of iron by oxygen : The overall reaction for the corrosion of iron by oxygen is given by the following reaction. 4Fe (s) + 3O2 (g) 2Fe2O3 (s) Compound ?H° (kJ/mol) S° (J/mol K) Fe (s) 0 27 O2 (g) 0 205 Fe2O3 (s) -826 90 Calculate the G° for the reaction at 298K and ..

What is average velocity from the time you leave dale : On your way to class you are walking North up the oval. From Dale Hall you walk 180 m towards Nielsen Hall when you meet a friend heading the other direction.

What is the flow velocity at street level : To pump out a subway, a pump is used that can increase the absolute pressureon the pool of water at the bottom of yhe subway to 400 kpa. what is the flow velocity at street level

Find the co-efficient of kinetic friction : A mass m1 = 10 kg on top of a rough horizontal table surface is connected by a massless cable over a frictionless wheel to a hanging mass m2 = 5 kg, as shown in the previous problem. If m2 falls 1 m from rest in 1.2 seconds, find the co-effic..

Describe methods of accounting available to br in tax year : BR's gross receipts were $4.6 million, $5 million, $6 million, and $7 million, respectively, for the four tax years ending in 2009, 2010, 2011, and 2012. Describe the methods of accounting available to BR in each tax year.

Explain which elements are being reduced in each reaction : Calculate ?Ssurr for each of the reactions above at 25°C and 1 atm b. Determine which elements are being oxidized and which elements are being reduced in each reaction.

Classify equilibrium position as either stable or unstable : A mass is trapped on the x-axis. Its potential energy is given by U=-2x^3 -3x^2 +12x. Where x is i meters and U is in joules. A) Determine an expression for the force that acts on the mass as a function of position.

User Account

All Pages