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3 years ago

5/8+1/4 plz help me

Mathematics

1 answer:

slava [35]3 years ago

6 0

Answer 7/8 or .875 in decimal form

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Two capacitors, a 20 mF and a 30 mF, are connected in parallel to a 400 Hz source. The total capacitive reactance is _____.

muminat

Answer-

The total capacitive reactance of the circuit is 7.96 Ω.

Solution-

Two capacitors, a 20 mF and a 30 mF, are connected in parallel to a 400 Hz source.

The effective/equivalent capacitance of the circuit is,

$C=20+30=50\ mF$

As, when capacitors are connected together in parallel, the equivalent capacitance in the circuit is equal to the sum of capacitance of all the individual capacitor.

We know that,

$X_c=\dfrac{1}{2\pi fC}$

Where,

$X_c$ = Capacitive Reactance (in Ω)

f = frequency (in Hz)

C = Capacitance (in F)

Here given,

$X_c$ = ??

f = 400 Hz

C = 50 mF = $50\times 10^{-6}$ F

Putting the values in the formula,

$X_c=\dfrac{1}{2\pi \times 400\times 50\times 10^{-6}}$

$X_c=\dfrac{10^{6}}{40000\pi}$

$X_c=7.96\ \Omega$

Therefore, the total capacitive reactance of the circuit is 7.96 Ω.

5 0

4 years ago

What is a graph theory?

I am Lyosha [343]

Answer:

a graph theory is the study of graphs in mathematics

4 0

3 years ago

Read 2 more answers

Penny attended a four year state college. She took out a student loan to pay for her tuition and room & board for the four y

Alika [10]

Answer:

27,880 for tutitions + 45,280 for room and board= 73,160 total

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3 years ago

A rectangular floor of area 360 m2 is going to be tiled. Each tile is rectangular, and has an area of 240 cm2. An exact number o

scoray [572]

Answer:

1500

Step-by-step explanation:

The area of the regtangular floor is 360m². The floor is going to be retired with tiles having area of 240cm² . We need to find the number of times . Therefore ,

$\implies 360m^2 = 360 \times 10^4 \ cm^2$

And , the number of tiles required will be ,

$\implies n =\dfrac{Area \ of \ floor}{Area \ of \ a \ tile }\\\\\implies n =\dfrac{ 360 \times 10^4 \ cm^2}{240 cm^2} \\\\\implies \underline{\underline{ n = 1,500 }}$

Hence the required answer is 1500 .

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3 years ago

What is the estimate of each percent 48% of 60

Annette [7]

It is 28.8 because if you do 48% * 60 you get 28.8 =)

5 0

3 years ago

5/8+1/4￼ plz help me

5/8+1/4 plz help me