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Zielflug [23.3K]
3 years ago
7

Why plate tectonics is a scientific theory and not a scientific law.

Physics
1 answer:
ser-zykov [4K]3 years ago
7 0

Answer:

We have not drilled to the center of the earth.

Explanation:

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A ball is thrown downward at 12 m/s from a windowsill 35 m above the ground. At the same time, another ball is thrown upward at
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Answer:

The second ball lands 1.5 s after the first ball.

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height of fall, h = 35 m

initial velocity of the second, v = 12 m/s

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v² = u² -2gh

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Total height above the ground to be traveled by the second ball is given as;

= 7.35 m + 35m

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Time taken for the second ball to fall from this height;

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total time spent in air by the second ball;

T = t₁ + t₂

T = 1.23 s + 2.94 s

T = 4.17 s

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t = 4.17 s -  2.67 s

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2 years ago
In vacuum, the speed of an electromagnetic wave
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