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stepan [7]
3 years ago
6

What factors have caused Earth to evolve over geologic time?

Physics
1 answer:
kow [346]3 years ago
8 0
Earth, the planet:

1. Collision of Earth with Mars-sized planet.

2. Formation of the Moon and its gravitational effects.

3. Cooling and solidification of Earth's molten outer surface.

4. Period of intense asteroid bombardment.

5. Build-up of liquid water on Earth's surface.

6. Appearance of continents.

7. Start of plate tectonics.

8. Appearance of photosynthetic bacteria.

9. Change in atmosphere due to photosynthetic bacteria.

10. Widespread appearance of complex organisms.

11. Adaptation of plant and animal life to land.

12. Periods of intense, long-lasting volcanic activity.

13. Re-positioning of Earth's continents and oceans, and its

resultant effect on weather patterns and ocean circulation.

14. Changes in Earth's magnetic fields.

15. Changes in Earth's orientation to the sun.

16. Random devastating meteorite impacts.

17. Glaciations, floods, earthquakes.

Life: Abundance, Diversity and Extinction of different species in response to changing climatic, ecologic and edaphic conditions.
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Read 2 more answers
A 1500 kg elevator, suspended by a single cable with tension 16.0 kN, is measured to be moving upward at 1.2 m/s. Air resistance
kirill115 [55]

Tension in the Cable is 0.87 m/s6^2, Elevator's speed after it has moved 10m is 1.6*10^5 N, Work done by gravity is  1.47 * 10^3 N, Elevator Kinetic Energy is 13897.5J and Elevator Speed after rising to 10m is 4.312 m/s.

Tension is a pulling force that operates in one dimension along the cables' axes in the opposite direction from the direction of the applied force. The combined weight of the elevator box and the passenger riding inside it, in the case of an elevator, provides the pulling force in the cables is called Tension.

A moving object or particle's kinetic energy, which depends on both mass and speed, is one of its characteristics. The type of motion can be vibration, translation, rotation around an axis, or any combination of these. Kinetic energy is a type of energy that an item or particle possesses as a result of motion.

We know that,

Tension in the Cable

T = m(g+a)  = g+a = T/m = 16 * 103 / 1500 = 10.67 m/s2

a = 10.67 - 9.8 = 0.87 m/s6^2

Elevator's speed after it has moved 10m.

U^2 = u^2 +2as

= 1.22 +2*0.87*10

=1.6*10^5 N

Work done by gravity  = mg * 10 = 14700 * 10 = 1.47 * 10^3 N

Elevator Kinetic Energy = 1/2 mv^2 = 1/2*1500*18.53 = 13897.5J

Elevator Speed after rising to 10m ,

U^2 = u^2 +2as =  1.2 +2*0.87*10 = 18.6

U =(18.6)^1/2=4.312 m/s

Learn more about Kinetic Energy here

brainly.com/question/26472013

#SPJ4

6 0
1 year ago
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