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Marat540 [252]
3 years ago
5

Energy in an ecosystem is first obtained by

Physics
1 answer:
Likurg_2 [28]3 years ago
6 0

Answer:

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.

You're welcome if I helped!

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B) Amps

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A student has a small piece of steel.
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record the mass accurately

measure and observe the mass and the volume of the different objects

use appropriate apparatus and methods to measure volume and mass and use that to investigate density

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Sarah observed that different kinds and amounts of fossils were present in a cliff behind her house. She wondered if changes in
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The following three questions refer to a situation in which a driver is in a car that crashes into a solid wall. The car comes t
Andreas93 [3]

Answer:

1) p₀ = 45000 N / s ,   p₀ '= 1800 , b)  I = -45000 N s ,  I = 1800 Ns

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Impulse equals the change in momentum

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the change at the moment is

          Δp = 45000

because the end the car is stopped

moment of the person

          P₀ ’= m v

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2) of the momentum change impulse ratio

        car

              I =  Δp

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        person

              I = Δpo '

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3) the object that give the momentum to stop the wall motoring

The person is stopped by the impulse given by the car

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6 0
3 years ago
Q. At what point in a waterfall do the drops of water contain the most kinetic energy ?
antoniya [11.8K]

Answer:

2.When they reach the bottom of the fall

Explanation:

The potential energy of the waterfall is maximum at the maximum height and decreases with decrease in height. Based on the law of conservation of mechanical energy, as the potential energy of the water fall is decreasing with  decrease in height of the fall, its kinetic energy will be increasing and the kinetic energy will be maximum at zero height (bottom of the fall).

Thus, the correct option is "2" When they reach the bottom of the fall

7 0
2 years ago
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