Which resistors in the circuit must always have the same voltage?

A typical atom has a diameter of about 1.32 x 10-10 m. (a) what is this in inches (b) approximately how many atoms arethere alon

JulijaS [17]

Answer:

A ) $5.197 \times 10 ^{-9} inches$

b) There are approximately 100,000,000 atoms on the 1.32 cm lines

Explanation:

To ensure the accuracy of our answer, we will have to make sure we work in the appropriate units.

A

To convert $1.32 \times 10^{-10} m$ to inches, we can use this factor.

1 m = 39.3701 inches

Therefore $1.32 \times 10^{-10} m$ =

B

To find the number of atoms on a 1.32 cm line, we will first of all need to convert 1.32 cm to meters.

1.32 cm = 0.0132 metres (divided 1.32 by 100 to convert to metres)

Assuming all the atoms are arranged side by side, with their edges touching on the 0.0132m line, the number of atoms present will be

$0.0132/1.32\times 10^{-10}$ = 100,000,000 atoms

5 0

3 years ago

How does chronic stress physically change the brain?

DIA [1.3K]

Chronic stress can physically change the brain by:

- Chronic stress has the ability to shrink the brain. It has the ability to harm one’s person learning capacity by being able to reduce the volume of the gray matter that is a major component in a person’s brain. It is also able to harm the memory of the person.

6 0

4 years ago

Suppose that the speed of yellow visible light in a certain transparent medium is 2.01* 105 km/s. What, approximately, is the in

True [87]

Answer:

$1.50$

Explanation:

Index of refraction:

$n=\frac{c}{v}$ where $n$ is the refractive index, $c$ is the speed of light in vacuum and $v$ is the speed of light in medium.

The speed of light in vacuum is $3.00 \times 10^5 \text{km/s}$

Speed of light in medium is $2.01 \times 10^5 \text{km/s}$

Thus,

$n=\frac{3.00\times 10^5}{2.01\times 10^5}$

$n=1.50$

Index of refraction of this substance through yellow light is $1.50$

4 0

3 years ago

Question 4 Unsaved If element X has 93 protons, how many electrons does it have? Your Answer:

9966 [12]

It have 93 electrons

8 0

4 years ago

Tony drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took hours. When Tony drove hom

polet [3.4K]

Answer:

Question not completed, so I analysed the question first

Tony drove to the mountains last weekend. there was heavy traffic on the way there, and the trip took 6 hours. when tony drove home, there was no traffic and the trip only took 4 hours. if his average rate was 22 miles per hour faster on the trip home, how far away does tony live from the mountains?

Explanation:

Let use variables to solve the problems

Let the first trip to be mountain take x hours

Let the trip back home take y hours

Let the speed to while going to the mountain be a miles/hour

Then, while going home it was b miles/hour faster than while going to the mountain.

Then, speed going home is (a+b)miles / hour

The formula for speed is given as

Speed=distance/time

The constant through out the journey is distance, the two journey has the same distance.

Then,

Distance =speed×time

For first journey going to the mountain

Distance = a×x=ax miles

For the second journey going home

Distance =y×(a+b)

Distance Mountain= distance home

ax=y(a+b)

Make a subject of the formula

ax=ya+yb

ax-ya=yb

a(x-y)=yb

a=yb/(x-y)

Therefore, distance from mountain is

Distance=speed ×time

Distance= a×x=ax

Now, applying the questions

So from the questions

x=6hours, y=4hours

Also, b=22miles/hour

Then,

a=yb/(x-y)

a=4×22/(6-4)

a=88/2

a=44miles/hour

Then, the house distance from the mountain is

Distance=ax

Distance =44×6

Distance =264miles

4 0

4 years ago

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