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taurus [48]
3 years ago
10

The number of electrons in an element with atomic number 20 is

Physics
2 answers:
Wewaii [24]3 years ago
7 0

The number of electrons in an element with atomic number 20 is calcium

Alex787 [66]3 years ago
5 0

Answer:

the answer is calcium....

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What is the purpose of the scientific method
Taya2010 [7]
1. Problem, purpose, or research question: The problem or research question is the single most important part of the scientific method. Every part of your project done to answer this question. The research question is sometimes formed as a statement and is called the "problem" or "problem statement"
6 0
3 years ago
What is the magnitude of the electric field at the dot in the figure? (figure 1)
blondinia [14]

The magnitude of the electric field at the dot is : 10⁴ v/m

<h3>What is electric field?</h3>

Electric field is a region around a charged particle or object within which a force would be exerted on other charged particles or objects.

Given that there are three equipotential lines with equal spacing,we will apply the the relationship between P.D and electric field

Determine the magnitude of the electric field at the dot

change in voltage  = E .d

100 - 0 = E \times ( 1 \times 10^{-2}\  m ) ----- ( 1 )

From equation ( 1 )

The magnitude of electric field will be given as

E = \dfrac{100 }{ ( 1 \times  10^{-2})\ }

E = 10^4\ \ \frac {v}{   m}

Hence we can conclude that The magnitude of the electric field at the dot is :  10⁴ v/m

Learn more about electric field :

brainly.com/question/14372859

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5 0
2 years ago
the radius of planet is drecresing by 50%without changing its mass . the acceleration due to gravity will be?​
tigry1 [53]

4 times more then real

Explanation:

if the radius of the earth decrease by 50% then the acceleration due to gravity increases by 4 times.

4 0
3 years ago
Does your BMR increase decrease stay the same or dissapear as you age?
hammer [34]

Answer:

it decreases because of the differences in hormones

6 0
3 years ago
Discuss the difference between waveform graphs and vibration graphs​
Kitty [74]

Difference exists mainly in the label for x axis.

Explanation:

  • Shapes of waveform and vibration graphs are same.
  • Vibration graphs shows the particle at a single location in the path of the wave when time passes.
  • Waveform graphs shows the particle at multiple locations at a single moment of time.
6 0
3 years ago
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