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4 years ago

Between ac and dc, which is more dangerous? If so, what makes it dangerous?

1 answer:

6 0

AC is more dangerous because the chance of a human suffering from Ventricular Fibrillation is much higher in the case of AC than DC. On the other hand, the impedance for DC is higher compared to AC so the harshness of electric shock would be comparatively lower than AC. <span>I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.</span>

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What science projects should I do? Please just choose something basic!

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How does the different type of music such as classic, hiphop, or rock affect the human mind

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3 years ago

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4 years ago

an object that is 8 cm tall is located 2.5 m in front of a plane mirror. The image formed by the mirror appears to be. Find di a

UkoKoshka [18]

The image is at 2.5 m behind the mirror (virtual image)

Explanation:

We can solve the problem by using the mirror equation:

$\frac{1}{f}=\frac{1}{d_o}+\frac{1}{d_i}$

where

f is the focal length of the mirror

$d_o$ is the distance between the object and the mirror

$d_i$ is the distance between the image and the mirror

For a plane mirror, the focal length is infinite:

$f=\infty$

And in this problem, the distance of the object from the mirror is

$d_o = 2.5 m$

Substituting and solving for $d_i$ , we find the location of the image:

$0=\frac{1}{d_o}+\frac{1}{d_i}\\d_i = -d_o = -2.5 m$

And the negative sign means that the image is located behind the mirror, so it is virtual.

Learn more about reflection and refraction:

brainly.com/question/3183125

brainly.com/question/12370040

#LearnwithBrainly

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3 years ago

What would be a good geographic location for a hydroelectric power plant?

cricket20 [7]

Answer:

C. An area with a large river and significant elevation changes

Explanation:

"The best location for a hydroelectric station should be along the path of a river. It should be at least at the river canyon or at the place where the river narrows. This enables the collection of the water or the diversion of the river."

Hope this helps

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3 years ago

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. The athlete is able to rotate the ball at the

garik1379 [7]

(a) 6.04 rev/s

The speed of the ball is given by:

$v=\omega r$