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Nonamiya [84]
3 years ago
14

Hiro rubs an inflated balloon on his hair, and his hair sticks to the balloon. As he moves the balloon away from his head, how d

oes the electric force change
Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
5 0
There is a transfer of electrons between the surface that came into contact.In this case, when balloon is rubbed onto your hair, electrons from the balloon transfer to your hair. When the surfaces are separated they try to maintain neutral charge by transferring the excess electron from the hair to the balloon. 
postnew [5]3 years ago
4 0

Answer: option C- the electric force decreases because the distance increases

Step-by-step explanation:

Hope helps took test :)

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The dimensions of a rectangles are 8cm and 12cm. What is the ratio of its length to its perimeter?
kari74 [83]

Answer:

Dimensions = 8 CM and 12 CM

length = 12 CM

width = 8 cm

perimeter = 2 ( length + width)

= 2( 12 + 8)

= 2 ( 20)

= 40 CM

ratio = 12/40

= 6/20

= 3/10

<h2>= 3 : 10 </h2>
3 0
2 years ago
Last question on the first Khan assignment!
nikklg [1K]

Answer:

x=6

Step-by-step explanation:

(×+54)+5×=90

6×+54=90

90-54

6×=36

×=6

8 0
2 years ago
Write the expression: six divided by the quantity x plus y. A) 6 x + y B) x + y 6 C) x 6 + y D) 6 x + y
jekas [21]

6 is what you're dividing by so it goes on top as the numerator and x + y is the denominator: \frac{6}{x+y}

6 0
3 years ago
Read 2 more answers
TWENTY POINTS.
earnstyle [38]

Answer: 54 feet or 648 inches.

Step-by-step explanation:

1. You know that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. Therefore, you can calculate the width of the full-sized house that it's modeled after, as following:

width=\frac{108in*1/2ft}{1in}\\width=54ft

2. Then, the width in feet is: 54 feet.

3. And the width in inches is:

(Keeping on mind that 1 feet=12 inches)

\frac{54ft*12in}{1ft}=648in

4 0
4 years ago
In two or more complete sentences, describe how the substitution method works for solving a two-order system of equations.
padilas [110]
The first step is to set one equation equal to x or equal to y.
Ex. y = ..... or x = .....
The next step is to substitute that equation into the second equation in place of the x (or y), whichever you set it equal to.

Ex. x + y = 3
     2x + y = -1

y = -x + 3      2x + (-x + 3) = -1
                       x + 3 = -1
                       x = -4
y = -(-4) + 3    y = 7    (-4,7)
8 0
3 years ago
Read 2 more answers
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