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ASHA 777 [7]
3 years ago
11

If 30C of charge is flowing through a circuit in 2 minutes, what is the current?

Physics
1 answer:
lina2011 [118]3 years ago
5 0

Answer:

0.25A

Explanation:

Given parameters:

Quantity of charge  = 30C

Time taken  = 2minutes  = 2 x 60 = 120seconds

Unknown:

Current through the circuit = ?

Solution:

To find the current through the circuit, use the expression below;

      I  = \frac{Q}{t}

Q is the quantity of charge

t is the time taken

 Now, insert the parameters and solve;

         I  = \frac{30}{120}   = 0.25A

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3 years ago
A tank has the shape of an inverted circular cone with height 16m and base radius 3m. The tank is filled with water to a height
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Answer:

W=17085KJ

Explanation:

From the question we are told that:

Height H=16m

Radius R=3

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Density of water \rho=1000kg/m^3

Generally the equation for Volume of water is mathematically given by

 dv=\pi*r^2dy

 dv=\frac{\piR^2}{H^2}(H-y)^2dy

Where

   y is a random height taken to define dv

Generally the equation for Work done to pump water is mathematically given by

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Substituting dv

 dw=(p(=\frac{\piR^2}{H^2}(H-y)^2dy))g (H-y)

 dw=\frac{\rho*g*R^2}{H^2}(H-y)^3dy

Therefore

 W=\int dw

 W=\int(\frac{\rho*g*R^2}{H^2}(H-y)^3)dy

 W=\rho*g*R^2}{H^2}\int((H-y)^3)dy)

 W=\frac{1000*9.8*3.142*3^2}{9^2}[((9-y)^3)}^9_0

 W=3420.84*0.25[2401-65536]

 W=17084965.5J

 W=17085KJ

 

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3 years ago
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The universe is known to have a very largest galaxy called the giant elliptical galaxy that is made up of about a trillion stars.

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The early workers in spectroscopy (Fraunhofer with the solar spectrum, Bunsen and Kirchhoff with laboratory spectra) discovered
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The hot gases produce their own characteristic pattern of spectral lines, which remain fixed as the temperature increases moderately.

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4 years ago
A 3 om light bulb and a 6 om light bulb are connected in series, and then hooked up to a battery. Which of the two will shine th
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Answer:

the 6 om is brighter because 6-3=3

Explanation:

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