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ser-zykov [4K]
4 years ago
13

Name 5 machine principles​

Physics
1 answer:
lidiya [134]4 years ago
3 0

The Wheel & Axle. The wheel has always been considered a major invention in the history of mankind

The Inclined Plane

The Wedge

The Pulley

The Screw

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How to represent milligram in kilogram by standard formula?
Anettt [7]

Answer:

0.000001 kg

Explanation:

because 1 kg equal 1,000,000 milligrams

we take   \frac{1}{1,000,000} which equals 0.000001 kg

4 0
3 years ago
The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the lithosphere,
ludmilkaskok [199]

A

most common source of phosphates in the soil is the weathering of the mineral apatite.

Explanation:

Apatite is a group of phosphate minerals like hydroxylapatite, fluorapatite, and chlorapatite. When apatite rocks weather, they release the phosphate minerals mainly in the form of PO₄ ³⁻ . These minerals become dissolved in water (hydrosphere), where they are readily available to plants and other organisms in the biosphere. The phosphates are taken up and used in biosynthesis. When these organisms die and become buried with sediments, the phosphate gets back to the lithosphere as sedimentary rock.

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5 0
3 years ago
Why is the sky blue?<br><br> (explain)
DochEvi [55]

Answer:

Bc the ocean is blue and the water reflects to the sky ;-;

3 0
3 years ago
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Which of the following BEST explains why stability is an important skill for athletes?
Irina-Kira [14]

Answer;

B. Without good stability, athletes are too clumsy to perform well.

Explanation;

Stability refers to the resistance to both linear and angular acceleration, or resistance to disruption of equilibrium.

Developing and enhancing core strength and stability helps athletes to maximize their power output and enhance game day performance. Additionally, Improving core strength and stability can also help athletes reduce their risk of injury.

8 0
4 years ago
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An astronaut is doing repairs on the international Space Station. She throws a hammer into space with a velocity of 3m/s. How mu
Rainbow [258]

Answer:

The force is 15N

Explanation:

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F= 5×3

F= 15Newton.

Therefore the force is 15N.

3 0
3 years ago
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