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Veronika [31]
3 years ago
15

The periodic table organizes elements by

Biology
1 answer:
Anni [7]3 years ago
6 0

Answer: B increasing atomic number

Explanation: A periodic table is the table that shows the arrangement of elements in the order of increasing atomic number. In the periodic table, the horizontal rows of elements are called periods while the vertical columns are called groups. All the elements in a given period have the same number of electron shell while all the elements in the same group have the same number of valence electrons (same number of electrons in the outermost shell of their atoms).

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In the formula, E K = 1/2 • m • v 2 if mass (m) was doubled, how much would kinetic energy
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Answer:

mass doubled makes KE twice as large

velocity doubled makes KE 4 times as large

Explanation:

Try it with an example

m = 4

v = 8

KE = 1/2 m * v^2

KE = 1/2*4 * 8^2

KE = 1/2 * 4 * 64

KE = 128

Now double the mass

m  = 8

v = 8

KE = 1/2 8 * 8^2

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KE = 4 * 64

KE = 256 double what it started out as.

Now do it again.

m = 4     That was the original mass

v = 16

KE = 1/2 4 * 16^2

KE = 2 * 256

KE = 512

When the velocity is doubled the KE becomes 4 times as big.

4*128 = 512

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What is crossing-over, during what phase does it occur, and what is its significance?
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Answer:

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Explanation:

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