A solenoid is designed to store ul 010 j of energy when it
a solenoid is designed to store Ul = 0.10 J of energy when it carries a current I of 450 mA. The solenoid has a cross-sectional area A of 5.0 cm2 and a length L of 0.20 m. How many turns of wire must the solenoid have?
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The total phosphate concentration (TOTPO4) in a river is 3.2 mg/L as P. The pH of the river is 7.8. What are the concentrations of H2PO4- and HPO42-
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.53x1011 m apart. What is the mass of the smaller star
calculate the energy of an electron in the hydrogen atom when n=2 and when n = 6. Calculate the wavelength of the radiation released when an electron moves from n=6 to n=2. Is this line in the visible region of the electromagnetic spectrum
A coal-fired power plant produces a net electrical output of 500 MW. The composition of the coal burned is C= 72 %, H= 6 %, S= 3.5 %, O= 6 %, N= 1 %, and ash= 12 % by weight. It's heating value (HV) is 30200 kJ/kg. The net thermal efficiency is 36
a solenoid is designed to store Ul = 0.10 J of energy when it carries a current I of 450 mA. How many turns of wire must the solenoid have
Find delta heat formation of butane. C4H10 + 13/2 O2 ---> 4 CO2 + 5 H2O. Delta H comb= -2881.9 Delta Heat formation of CO2 = -393.5kJ/mol Delta Heat formation of H2O = -241.8kJ/mol What is the kJ
You own a portfolio that consists of $8,000 in stock A, $4,600 in stock B, $13,000 in stock C, and $5,500 in stock D. What is the portfolio weight of stock A? 14.79 percent 15.91 percent 18.42 percent 19.07 percent 25.72 percent
The number of hours on each machine required to produce a product is given in the following table, along with the number of hours available per week on each type of machine. Assume that the company can sell everything it produces.
What is the balanced equation for the formation of magnesium nitride from magnesium and nitrogen gas
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