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3 years ago

What is the main purpose of scientific models

1 answer:

8 0

A scientific model is used to make a part of the world easier it could be use to explain something and make it understandable to learn. It is mainly use to provide a reference for other people by showing them a example and a experiment on how the that subject works. The main purpose of scientific models is "to explain something that cannot be experienced directly."

Hope this helps!

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A species of cactus has spines. How would biologists explain how a species of cactus with spines evolved from an ancestral cactu

sergejj [24]

Answer:

It needs the spines for protection

Explanation:

The cactus would develop the spines as a form of protection to protect itself from being consumed and to survive longer.

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3 years ago

Types of phase changes of matter

Alenkinab [10]

A phase change is when matter changes into another form but keeps its properties

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3 years ago

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nikitadnepr [17]

Answer:

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2 years ago

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zavuch27 [327]

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3 years ago

A 35 kg child moves with uniform circular motion while riding a horse on a carousel. The horse is 3.2 m from the carousel's axis

Andrews [41]

<h2>Hello!</h2>

The answer is:

b. $\frac{2.11m}{s^{2}}$

The centripetal acceleration or radial acceleration is present when an object is moving to describe a circular path. The centripetal acceleration is always perpendicular to the direction of the velocity and going inwards and towards the center.

The centripetal acceleration can be calculated using the following equation:

$CentripetalAcceleration=\frac{v^{2}}{RadiusOfMotion}$

From the statement we know that:

$v=TangentialSpeed=\frac{2.6m}{s} \\R=3.2m$

So, calculating we have:

$CentripetalAcceleration=\frac{{2.6^{2} \frac{m}{s} }}{3.2m}=\frac{{6.76\frac{m}{s} }}{3.2m}=\frac{2.11m}{s^{2} }$

So, the correct answer is:

b. $\frac{2.11m}{s^{2}}$

Have a nice day!

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4 years ago