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AlladinOne [14]
3 years ago
9

A feather of mass 0.001 kg falls from a height of 2 m under realistic conditions it experiences air resistance based on what you

know about friction what can you say about the kinetic energy of the feather as it reaches the ground
Physics
2 answers:
Hunter-Best [27]3 years ago
4 0

Answer:

KE < 0.0196 J

garri49 [273]3 years ago
3 0
It has to be 856.4 theres no way its not you got this your welcome
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3 years ago
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1) Arrange the following spectral regions in order of increasing energy: infrared, microwave, ultraviolet, visible.
Anton [14]

Answer:

The order of increasing energy is as follows

"microwave < infrared < visible < ultraviolet"

Option (A) is correct.

Explanation:

Given:

Arrange the following spectral regions in order of increasing energy: infrared, microwave, ultraviolet, visible.

From the formula of energy in terms of frequency.

  E = hf

Where h = planck constant, f = frequency of light.

From above formula we can conclude that higher frequency means higher energy.

In our case ultraviolet has higher frequency and microwave has lower frequency.

So ultraviolet has higher energy and microwave has lower energy.

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7 0
3 years ago
a runner covers the last straigjt stretch of a race in 4 s. during that time, he speeds up from 5m/s to 9m/s.
PtichkaEL [24]

During that final period of time,
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8 0
3 years ago
Why do areas with low altitude have warmer air than areas with high altitude
barxatty [35]

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Explanation:

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2 years ago
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Klio2033 [76]

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could u vote me brainliest plz? thx :)

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