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3 years ago

If the strength of the magnetic field at B is 10 units, the strength of the magnetic field at A is _____.

Chemistry

2 answers:

Sergeeva-Olga [200]3 years ago

8 0

The answer is 40 units.

Nostrana [21]3 years ago

5 0

Answer:

40 units

Explanation:

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Which of the following is a possible reason that urban sprawl is common even when it has a negative impact on the environment? a

Mrrafil [7]

<h2>Answer:</h2>

Option B is correct.

b. extending outward is more economical than extending upward

<h2>Explanation:</h2>

people tend to move from rural areas to urban for the greater facilities that they can enjoy at cities. This urban sprawl is also very economic because people will get more chances of jobs, business and work hence improving the economy.

6 0

3 years ago

Read 2 more answers

The mass of a jar of sugar is 11. 9 kg. What is the total mass of 13 jars of sugar?.

Masteriza [31]

Answer:

154.7

Explanation:

11.9kg x 13 = 154.7

5 0

2 years ago

Good evening! Does anyone know this? Earth Science

riadik2000 [5.3K]

The fraction of Earth's radius (6371 km) relative to the thickness of the oceanic (7.5 km) and continental crust (35 km) is 0.12 and 0.55, respectively.

What we know:

The average radius of Earth (E) = 6371 km

The average thickness of oceanic crust (O) = 7.5 km

The average thickness of continental crust (C) = 35 km

We need to convert all the above units from kilometers to miles:

$E = \frac{0.6214 mi}{1 km}*6371 km = 3958.9 mi$

$O = \frac{0.6214 mi}{1 km}*7.5 km = 4.7 mi$

$C = \frac{0.6214 mi}{1 km}*35 km = 21.7 mi$

Now, we can calculate the fraction of Earth's radius relative to each type of crust, with the given equation:

$X = \frac{avg. \: thickness}{avg. \: radius} \times 100$

For the oceanic crust (O):

$X = \frac{4.7 mi}{3958.9 mi}\times 100 = 0.12$

For the continental crust (C):

$X = \frac{21.7 mi}{3958.9 mi}\times 100 = 0.55$

Therefore, the fraction of Earth's radius relative to the oceanic and continental crust is 0.12 and 0.55, respectively.

You can see another example of calculation of fractions of Earth's radius here: brainly.com/question/4675868?referrer=searchResults

I hope it helps you!

6 0

3 years ago

A 9-ounce of glass contains 72 milligrams of vitamin

sleet_krkn [62]

Answer: 7.2 ounces

Explanation:

1) Data:

- glass size: 9-ounce

- content of vitamin C: 72 milligrams


- glasssize: x

- content of vitamin C: 60 milligrams


2) Proportion


9 ounces / 75 mg = x / 60 mg


3) Solution:


9 ounces × 60 mg = 75 mg × x


⇒ x = 9 ounces × 60 mg / 75 mg = 7.2 ounces

7 0

3 years ago

Calculate the number of moles of C2H6 in 6.29×1023 molecules of C2H6.

Kipish [7]

1.05moles

Explanation:

Given parameters:

Number of molecules of C₂H₆ = 6.29 x 10²³molecules

Unknown:

Number of moles = ?

Solution:

The mole is the amount of substances that contains Avogadro's number of particles i.e 6.02 x 10²³

To find the number of moles:

number of moles = $\frac{number of particles}{Avogadro's number}$

number of moles = $\frac{6.29 x 10^{23} }{6.02 x 10^{23} }$

number of moles = 1.05moles

Learn more:

moles brainly.com/question/1841136

#learnwithBrainly

7 0

3 years ago