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3 years ago

Soil can best be described as the

1 answer:

5 0

<span>The correct option is D. Soil can best be described as the loose covering of weathered rocks and decaying organic matter. There are different types of soil, the type of soil formed depends majorly on the type of parent rock from which the soil is formed and the amount of organic matter present in the soil.</span>

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A coin is rolling across a table at 0.23 m/s. It rolls off the table and lands 0.15 meters away from the edge of the table. How

timurjin [86]

Answer:

<em>The table is 2.08 m high</em>

Explanation:

<u>Horizontal Motion</u>

When an object is thrown horizontally with a speed vo from a height h, the range or maximum horizontal distance traveled by the object can be calculated as follows:

$\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}$

If we know the range d = 0.15 m and the speed v = 0.23 m/s, we can solve the above equation for h:

$\displaystyle h=\frac{d^2\cdot g}{2v^2}$

$\displaystyle h=\frac{0.15^2\cdot 9.8}{2\cdot 0.23^2}$

$\boxed{h=2.08\ m}$

The table is 2.08 m high

4 0

3 years ago

A 22kg box slides down a 30.0 degree incline. If there is no friction, what is the acceleration of the box?

Rashid [163]

Answer:

Acceleration of the box is 4.9 m/s².

Explanation:

The free body diagram is shown below.

The weight of the body can be resolved into two mutually perpendicular components as shown. The force responsible for sliding motion of the box along the incline is due to $mg\sin \theta$ acting along the incline.

Therefore, as per Newton's second law of motion,

Net force = $mass\times acceleration$

Now, net force acting along the incline is only $mg\sin \theta$

Therefore,

$mg\sin \theta=ma\\a=g\sin \theta$

Now, $g=9.8\textrm{ and } \theta = 30$

Therefore, the acceleration of the box is given as:

$a=9.8\times \sin(30)=9.8\times 0.5=4.9\textrm{ }m/s^{2}$

Acceleration of the box is 4.9 m/s².

6 0

4 years ago

If the amount of work done on a book was 10 J and the force required to move the book was 2.5 N, what was the distance the book

olga55 [171]

Answer:

Explanation:4meters

Work=10J

Force=2.5N

Distance=work ➗ force

Distance=10 ➗ 2.5

Distance=4meter

5 0

3 years ago

The critical angle for a light ray travelling from a ruby into ethyl alcohol is 50.6 degrees celsius. Determine the index of ref

stepan [7]

In order to answer this question, I realized that I needed to know the index
of refraction for ruby, so I went and looked it up. It's 1.762 to 1.770 .

I started trying to remember how to use this number and the critical angle
to find the index of refraction of the other medium. That's when I saw the
absurd unit "degrees celsius" for the critical angle, and I got discouraged.
But I perked up very quickly, when I realized that I'm still on the "index of
refraction" list, and while I'm there, I might as well just go ahead and
look up ethyl alcohol too.

It's 1.36 .

8 0

3 years ago

Which sequence shpes the steps of the proces of science in an order in which they might occur?

ivanzaharov [21]

The steps of the process of science in an order in which they might occur

exploration >> hypothesis >> prediction >> experiment.

The correct option is D.

<h3>Explanation:</h3>

A series of sequential steps are included in the scientific method, which is how knowledge in the scientific field is acquired.
When a question arises from observing the natural world, a hypothesis is a predetermined explanation of the question.
Experimental and/or observational procedures must be used to test a hypothesis and determine whether it is true or false.

<h3>What are some fundamental scientific procedures?</h3>

When scientists conduct research and study, they use specific science process skills. The thinking processes that scientists, teachers, and students use when conducting science include observing, categorizing, communicating, measuring, inferring, and predicting.

To know more about process of science visit:

brainly.com/question/3987688

#SPJ4

I understand that the question you are looking for is:

Which sequence shows the steps of the process of science in an order in which they might occur?

A. exploration, question, opinion, conclusion, hypothesis

B. question, observation, experiment, analysis, prediction

C. experiment, conclusion, exploration, application

D. exploration, hypothesis, prediction, experiment

6 0

2 years ago