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Ksenya-84 [330]
3 years ago
12

Can somebody google or pls if u know the correct answer help!!!

Physics
2 answers:
love history [14]3 years ago
8 0

Answer:

Nutrients

Oxygen

Water

Stable body temperature

Atmospheric pressure

Explanation:

Goshia [24]3 years ago
3 0

Answer:

The five basic survival needs are, oxygen, water, food , shelter, and self defense they're important because these things help keep us alive and functioning. These are the bare necessities to living.

Explanation

In order to survive, all living things need air, water, food, shelter, and slef-defense. Animals obtain their food from plants and other animals, which provides them with the energy they need to move and grow. ... Plants also need air, water, and food, but they don't have mouths to breathe, drink or eat.

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The world’s largest wind turbine has blades that are 80 m long and makes 1 revolution every 5.7 seconds. What is the velocity fo
klemol [59]

Answer:

The free end of the blade has a tangential velocity of about 88.19 m/s

Explanation:

The angular velocity of the blades is  2 \pi /5.7\,\,rad/sec

since the blades are 80 m long, then the tangential velocity of the free end of the blade is:

v_{tan} \approx 88.19\,\,m/s

3 0
3 years ago
Two competing models attempt to explain the motions and changing brightness of the planets: Ptolemy's geocentric model and Coper
AlekseyPX

Answer:

A. Geocentric: This model is Earth Centered . Retrograde motion is explained by epicycles .

B. Heliocentric: This model is Sun centered.  Retrograde motion is explained by the orbital speeds of planets

C. Both geocentric and heliocentric: Epicycles and deferents help explain planetary motion . Planets move in circular orbits and with uniform motion . The brightness of a planet increases when the planet is closest to Earth.

Explanation:

The principle of the Ptolemy's geocentric model was developed on the assumption that the center of the universe is the Earth. On the other hand, the principle of the Copernicus' heliocentric model was based on the assumption that the center of the universe is the sun. However, both models have a common ideology on uniform circular motion and epicycles.

6 0
3 years ago
In an experiment refractive index of glass was observed to be 1.45,1.56,1.54,1.44,1.54and1.53. Calculate mean value of refractiv
Sever21 [200]
The mean may be calculated by summing the values of the refractive index and dividing the sum by the number of experiments. This is:
Mean = (1.45 + 1.56 + 1.54 + 1.44 + 1.54 + 1.53)/6
Mean = 1.51

The mean absolute error is the sum of the absolute values of errors divided by the number of trials:
MAE = (|1.45-1.51|+|1.56-1.51|+|1.54-1.51|+|1.44-1.51|+|1.54-1.51|+|1.53-1.51|)/6
MAE = 0.043

The fractional error is the MAE divided by the actual value:
Fractional error = 0.043 / 1.51
Fractional error = 43/1510

The percentage error is the fractional error multiplied by 100:
Percentage error = 2.85%
7 0
3 years ago
Which theory of the origin of the moon would be most supported if the moon had an irregular shape, like an asteroid? impact theo
Fiesta28 [93]
<span>Its the impact theory.
It suggests that the moon resulted from the collision of two protoplanets, or embryonic worlds. One of those was the just-forming Earth, and the other was a Mars-size object called Theia. The moon then coalesced from the debris, thus giving it its irregular shape.</span>
3 0
3 years ago
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What is happening to you as you walk across the carpet
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You are attracting electricity<span />
6 0
3 years ago
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