Which of these could create static electricity?

2 answers:

7 0

C. Combing ones hair

Because it’s like when you rub a ballon on your hair and your hair becomes static. And because if you look at the other options and do process of elimination you would get C.

A- that’s just electricity from a plug in
B- same thing as A
And
D- that’s with a engine and gas

(Hopefully this helped.)

And from google “Using plastic combs and brushes on your hair can cause static electricity, much like that old trick you did as a kid of making your hair stand up by rubbing a plastic balloon on it.”

Vinil7 [7]2 years ago

6 0

c well actually I remember being tought this but I cant remember it 100

You might be interested in

1) A light bulb takes in 30 of energy per second. It transfers 3j as use

natta225 [31]

Answer:

$\boxed{\text{10 \%}}$

Explanation:

The formula for efficiency is

$\begin{array}{rcl}\text{Efficiency} & = & \dfrac{\text{useful energy out}}{\text{energy in}} \times 100 \,\% \\\\\eta & = & \dfrac{w_{\text{out}}}{w_{\text{in}} } \times 100 \,\%\\\end{array}$

Data:

Useful energy = 3 J

Energy input = 30 J

Calculation:

$\begin{array}{rcl}\eta & = & \dfrac{\text{3 J}}{\text{30 J}} \times 100 \,\%\\\\\eta & = & 10 \, \%\\\end{array}\\\text{ The efficiency is }\boxed{\textbf{10 \%}}$