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hjlf
3 years ago
13

The strength of a bar magnet's magnetic field decreases with distance according to what is known as an inverse cube law; multipl

ying the distance from the magnet by a factor of k divides the magnetic field strength by a factor of k^3. Suppose the magnetic field strength of the magnet is 64 Gauss at a distance of 10 cm away. What is the magnetic field strength of the magnet, 20 cm away?
Mathematics
1 answer:
sweet [91]3 years ago
8 0

Answer:

8 Gauss

Step-by-step explanation:

Since your moving the magnet from 10 to 20cm you're essentially multpliying the distance by 2.

K = 2

Therefore k ^ 3 = 2^3

64/2^3

=8

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1). 21 is what percent of 168. 4) what number is 62 percent of 50
malfutka [58]

1) 21 is 12.50% of 168.

2) 4% of 150 is 6.

3) 1% of 500 is 5.

4) 62% of 50 is 31.

5) 15% of 15 is 2.25

6) 40 percent of 25 is 10.

Step-by-step explanation:

1). 21 is what percent of 168.

Let,

x be the percent.

Therefore,

x% of 168 = 21

\frac{x}{100}*168=21

1.68x=21

Dividing both sides by 1.68

\frac{1.68x}{1.68}=\frac{21}{1.68}\\x=12.50

21 is 12.50% of 168.

2). What is 4 percent of 150.

4% of 150 = \frac{4}{100}*150

4% of 150 = \frac{600}{100} = 6

4% of 150 is 6.

3) 1 percent of 500 is what number

1% of 500 = \frac{1}{100}*500

1% of 500 is 5.

4) what number is 62 percent of 50

62% of 50 = \frac{62}{100}*50

62% of 50 = 0.62*50=31

62% of 50 is 31.

5) 15 percent of 15 is what

15% of 15 = \frac{15}{100}*15

15% of 15 = \frac{225}{100}=2.25

15% of 15 is 2.25

6) 40 percent of 25 is what number

40% of 25 = \frac{40}{100}*25

40% of 25 = \frac{1000}{100}=10

40 percent of 25 is 10.

Keywords: percentage

Learn more about percentage at:

  • brainly.com/question/10081622
  • brainly.com/question/10341324

#LearnwithBrainly

4 0
4 years ago
Anyone single i am lonely and sad... contact me if you are im a male 15 years old live in alabama hope your ready to go on a dat
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Answer:

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6 0
2 years ago
Zoom in to view well <br> Thanks
Step2247 [10]

Answer:

the answer is c. ........

8 0
3 years ago
Read 2 more answers
Solve: 3x - 7 - 2x + 5 = 6 A) -8 B) - 18 5 C) 4 D) 8
seropon [69]

Answer:

D) 8

Step-by-step explanation:

3x - 7 - 2x + 5 = 6

3x - 2x  = 6 + 7 - 5

  x   = 8

Note: 6 + 7 -5 =  13 -5 = 8

7 0
3 years ago
Rose has 325 crayons stored in boxes. If there are 13 boxes, how many crayons must go in each box? Are there any crayons leftove
vodomira [7]
You can find the answer by diving 325 by 13 and the answer would be 25 and you can check it by multiplying 13 x 25 which would be 325
Also there’s no leftovers
4 0
2 years ago
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