3 years ago

Which describes a device used to increase or reduce the voltage of alternating current?

2 answers:

6 0

The word "which" tells me right away that there's a list of choices that goes along with the question but you're not letting us see it.

If "transformer" is on the list, then that's the one to pick. If not, then we can't help you.

maria [59]3 years ago

4 0

Answer:

in your dreams little kids

Explanation:

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Eva8 [605]

m1= mass 1 = 1.1 kg

Vi1 = initial velocity 1 = 2.7 m/s

m2= 2.4 kg

V2i = -1.9 m/s

We assume east as positive and west as negative.

Apply the formulas:

Vf1 = ?

$vf1=(\frac{m1-m2}{m1+m2})Vi1+(\frac{2m2}{m1+m2})Vi2$

Replacing:

$Vf1=\frac{(1.1-2.4)}{(1.1+2.4)}2.7+\frac{(2\times2.4)}{(1.1+2.4)}-1.9$ $Vf1=(\frac{-1.3}{3.5})2.7+(\frac{4.8}{3.5})-1.9$ $Vf1=-1-2.6=-3.6\text{ m/s}$

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1 year ago

1)why do we get electric shock while holding a live wire barefooted and not when wearing rubber shoes?

katrin2010 [14]

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Answer:

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