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2 years ago

5

một nguồn điện có điện trở 0,1 ôm được mắc với điện trở 4,8 ôm thành mạch kín. Khi đó hiệu điện thế giữa hai cực của nguồn điện

là 12V suất điện động của nguồn điện là

1 answer:

zmey [24]2 years ago

3 0

Answer:

good morning mam going nme mam morning mam going on in the correct

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3 years ago

Example of nuclear fission and nuclear fusion

EleoNora [17]

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2 years ago

Suppose a certain jet plane creates an intensity level of 124 dB at a distance of 5.01 m. What intensity level does it create on

Zolol [24]

Answer:71 dB

Explanation:

Given

sound Level $\beta _1=124 dB$

distance $r_1=5.01 m$

From sound Intensity

$\beta =10dB\log (\frac{I_1}{I_0})$

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$12.4=\log (\frac{I_1}{I_0})$

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$I_1=2.51 W/m^2$

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$I_1r_1^2=I_2r_2^2$

$I_2=I_1(\frac{r_1}{r_2})^2$

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$I_2=1.24\times 10^{-5} W/m^2$

Sound level corresponding to $I_2$

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3 years ago

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Motion by definition is the movement of things above or below the surface of gravity

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