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kogti [31]
4 years ago
15

The terrestrial planets are made almost entirely of elements heavier than hydrogen and helium. According to modern science, wher

e did the elements heavier than hydrogen and helium come from?
Physics
2 answers:
Viktor [21]4 years ago
6 0

Answer:

Pls refer to this website:

brainly.com/question/13449023

drek231 [11]4 years ago
4 0

Hydrogen makes stars and stars spend most of their lifetime making helium.

The heavier elements are made when an old-age, high mass star explodes as a nova or supernova and then dies.

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Answer:

This is net charge on the surface  is  Q = σ₀ x (y + 2by²)

Explanation:

The surface charge density is defined as the amount of charge Q per unit area A

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Since the surface is a rectangular region we use an xy coordinate system so the area difference  

      dA = dxdy

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 We replace, evaluate the integral

        ∫ dq = ∫ σ₀ (1 + yb) dxdy

realizamos laintegral de dx

        Q -0 =σ₀ ∫ (1 + yb) (x-0)   dy

Where we evaluate We must recognize that the charge Q must be zero by the time X = 0 and Y = 0. At the starting point Q = 0 for x = 0

 

We perform the other integral (dy)

        Q = σ₀ x (y + 2y² b)

Evaluated between Y = 0 and Y = y

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3 years ago
The current in the wires of a circuit is 60 milliamps. If the resistance of the circuit were doubled (with no change in voltage)
anygoal [31]

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