All categories

3 years ago

If an atom had a nucleus one foot in diameter, what would be the diameter of the atom in miles?

1 answer:

8 0

If we take hydrogen as an example, the size of hydrogen is about 25000 times larger than that of its proton. 1 Mile is roughly 5280 ft, which means that the size of the entire hydrogen atom would be 4.73 miles in diameter.

You might be interested in

Pls help

mr Goodwill [35]

It's a because 5 divided by 9 equals .555555555555556. The 6 is just from rounding the number. Otherwise the five would go on forever. The bar means go on forever. So it .5 with a bat over the 5

4 0

2 years ago

The square ABCD has side length 20 cm,

bogdanovich [222]

Answer:

AE=22.4

Step-by-step explanation:

BE is 1/2 of BC

BC is 20 cm All sides of a square are equal

BE = 1/2 BC Property of a midpoint.

BE = 10

Now just use Pythagorus

AB^2 + BE^2 = AE^2

AE^2 = 20^2 + 10^2 Perform the sqrs

AE^2 = 400 + 100 Add the terms

AE^2 = 500 Take the square root of both sides

√AE^2 = √500

AE = 22.36

AE ≈ 22.4

6 0

2 years ago

Can someone solve 8 = b - 1 + 8b STEP BY STEP PLEASE

andrew11 [14]

Answer:

8 = b - 1 + 8b

group like terms

8 + 1 = b + 8b

9 = 9b cus b standing alone me 1b

divide both side by 9

9 = 9b

9 9

b = 1

7 0

2 years ago

Square ABCD is located on a coordinate plane. The coordinates for three of the vertices are listed below.

Marrrta [24]

Answer:

B'(16,14)

Step-by-step explanation:

First find the coordinates of the vertex B. The center of the square M is the midpoint of the diagonal AC. Since A(2,7) and C(8,1), the center has coordinates

$M\left(\dfrac{2+8}{2},\dfrac{7+1}{2}\right)=M(5,4).$

Point M is also the midpoint of the diagonal BD. Let B has coordinates (x,y), then

$\dfrac{x+2}{2}=5\Rightarrow x=8,\\ \\\dfrac{y+1}{2}=4\Rightarrow y=7.$

Hence, B(8,7).

Now, the dilation by a scale factor 2 with the center of dilation at the origin has the rule

(x,y)→(2x,2y).

Thus,

B(8,7)→B'(16,14).

8 0

3 years ago

a girl scout has (5x-12) boxes of cookies and sells (3x+18) of them. Write a simplified expression to represent the number of bo

SOVA2 [1]

5x-12 -(3x+18)

distribute

5x-12 -3x-18

2x-30 is whats left

8 0

3 years ago