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larisa86 [58]
2 years ago
5

Kepler’s laws of planetary motion describe each of the three laws

Physics
1 answer:
MaRussiya [10]2 years ago
6 0

Kepler's laws laid the foundation for the early study of astronomy.

Kepler was one of the earliest astronomers that contributed immensely to the study of the planets. The Kepler's laws of planetary motion are as follows;

  • The planets each travel along an ellipse with the sun at one focus.
  • The line joining the sun and the planets sweeps out equal areas in equal time intervals.
  • The square of the period of the revolution of the planets equals the cube of the planet's mean distance from the sun.

Learn more about Kepler's laws; brainly.com/question/1017661

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First half life is the time at which the concentration of the reactant reduced to half.

Second half reaction is the time at which the remaining concentration reduced to half or the initial concentration reduced to 1/4.

Third half life is the time at which the remaining concentration reduced to half or the initial concentration reduced to 1/8.

Forth half life is the time at which the remaining concentration reduced to half or the initial concentration reduced to 1/16.

Fifth half life is the time at which the remaining concentration reduced to half or the initial concentration reduced to 1/32.

The initial mass of the sample = 1 microgram

After 5 half-lives, the mass should reduce to 1/32 of the original.

So the concentration left = 1/32 of 1 microgram = 1/32 microgram

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