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zheka24 [161]
4 years ago
11

How are step-up transformers used in the transmission of electrical energy

Physics
1 answer:
bekas [8.4K]4 years ago
5 0
Step-up transformers<span> are </span>used<span> at power stations to produce the very high voltages needed to </span>transmit electricity<span> through the National Grid power lines. These high voltages are too dangerous to use in the home, so </span>step<span>-down </span>transformers<span> are</span>used<span> locally to reduce the voltage to safe levels.</span>
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photoshop1234 [79]

Answer:

she'd get thrown forward

Explanation:

3 0
3 years ago
What is 1.2 kg converted into mg.<br> I need to know for step by step please?
astra-53 [7]
Here’s a good photo to reference when converting in the metric system.

Each time you move down a step you move the decimal to the right, each time you move up a step you move the decimal to the left.

We are going from 1.2 kg or kilograms, which is at the very top left of the ladder. To get to mg or milligrams, we would have to make six jumps, so we’d move the decimal over six times.

1.2 > 12. > 120. > 1200. > 12000. > 120000. > 1200000.

So our final answer would be 1,200,000mg.
4 0
4 years ago
In ionic bonds what happens to electrons?
OverLord2011 [107]
I think the correct answer from the choices would be that metals donate electrons to nonmetals. Ionic bonding involves transfer of valence electrons. The metal looses its valence electrons which makes it a cation while the nonmetal accepts these electrons.
6 0
3 years ago
Read 2 more answers
a plane travels 2.5 km at an angle of 35 degrees to the ground and then changes Direction and travels 5.2 km and an angle of 22
Bess [88]

We can solve for the resultant x and y components by using the sine and cosine functions.

resultant x = 2.5 cos 35 + 5.2 cos 22 = 6.87 km

resultant y = 2.5 sin 35 + 5.2 sin 22 = 3.38 km

 

The resultant displacement is calculated using hypotenuse equation:

displacement = sqrt (6.87^2 + 3.38^2)

displacement = 7.66 km

 

The resultant angle is:

θ = tan^-1 (3.38 / 6.87)

θ = 26.20°

 

Therefore the magnitude and direction is:

7.66 km, 26.20° to the ground

3 0
4 years ago
A) Draw a pie chart that represents the two types of lung cancer. Show your working.
Sphinxa [80]

Answer:

<em>Please, check the image provided</em>

Explanation:

<u>Pie Charts</u>

They are graphic representations of quantitative results from experimental or theoretical experiences. Instead of showing a table, it's usually preferred to show a graph where the viewer can easily understand the relative relations between the parameters under study.

The chart pie is a circular shape divided into sectors whose areas are proportional to the proportions between each parameter and the total. Since the whole sector of a circle has 360°, each sector will be a proportion or ratio of that angle.

The outcome shown in the table gives us these statistics:

Small Cell Carcinoma : 15%

Non-Small Cell Carcinoma : 85%

Each category has the following angles in the chart pie

Small Cell Carcinoma : 15%*360°=54°

Non-Small Cell Carcinoma : 85%*360°=306°

The first category is shown in blue and the second in green. Please check the image below.

4 0
3 years ago
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