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1. ### water at 30c is pumped through a steel pipe of 2.5cm diameter and length 30m at a mass flow rate of 2kg/s.?

...pressure loss from head loss 1 meter of water head equals 9.804 KPa Pf = ( 25.4 m )( 9.804 KPa / m ) Pf = 249 KPa Pf ≈ 250...

2 Answers · Science & Mathematics · 14/03/2010

2. ### Magnitude and phase angle of source voltage?

...;69.3 deg. You can see that the current lags the voltage and the pf = .35 lagging. Hope that helps!

3 Answers · Science & Mathematics · 18/03/2010

3. ### Resistance, reactance, impedance, power homework question?

...2)*(R) = [(2.5^2)A]*(28 Ohms) = 175 Watts = (VA)*(pf) Apparent power (VA) = power/pf = 175W/.7 = 250VA...

2 Answers · Science & Mathematics · 18/05/2014

4. ### Electric circuits-- What is this brown thing?

Capacitors ,disk ceramic, low values of capacitance, usually .1uf to 100 pf.

4 Answers · Science & Mathematics · 10/05/2012

5. ### What is the energy in a capacitor!?

Energy in a Capacitor in Joules E = ½CV² E = ½(10e-12)(10)² = 5e-10 J = 0.5 nJ

1 Answers · Science & Mathematics · 03/11/2012

6. ### Can anyone help me with this question?

½CV² = ½Li² -----> i = V*√(C/L) = 4.77*√(11.4e-12/0.0099) = 0.1619ma

2 Answers · Science & Mathematics · 01/04/2018

7. ### The circuit below shows a resistor, capacitor, and inductor connected in series.?

a) Let f = the frequency (in Hertz) Let Z = the complex impedance Z = Zr + i(Zl - Zc) Zr = 8.3x10³ Zc = 1/{(2πf)C} Zc = 1/{(2πf)100x10^-12} Zc = 1.59x10^9/f Zl = (2πf)L Zl = (7...

2 Answers · Science & Mathematics · 08/11/2014

8. ### Why can't I increase power factor past 0.85 on a simple induction washing machine motor?

It appears what you are doing is correct. Possibly 3.5 mfds is too big a jump. Try two of the capacitors is series = 1.75 mfds in place of your 30 th capacitor or as your 31 st capacitor. that...

1 Answers · Science & Mathematics · 10/10/2011

9. ### What does .125 inch Spherical Radius mean?

The item is a float for a liquid level valve. Is that what you want? It has a screwed bush to attach it to an operating arm/ rod. It is within 1/8" radially of spherical. It quite probably has a seam around it somewhere...

2 Answers · Science & Mathematics · 16/04/2009