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3 years ago

If a mineral can be mined, what is it called?

Physics

2 answers:

NemiM [27]3 years ago

6 0

C. an ore. Like iron ore and gold oe. something deep in the Earth that can be mind and brought up.

labwork [276]3 years ago

6 0

Answer:

Option (C)

Explanation:

An ore is defined as a mineral deposit that is comprised of a sufficient amount of minerals, from which the economically rich metal, as well as other minerals, can be profitably extracted. These minerals are obtained from the environment by the various process of mining, such as the open cast and underground mining. For example, Zinc ore.

These ore deposits are commonly named after the location where they are found, and also named after the discoverer.

Thus, the correct answer is option (C).

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Parker (73.2 kg) is being dragged down the hall with an applied force of 123 N. If the frictional force is 27.4 N, what is the c

levacccp [35]

Answer:

The coefficient of friction in the hall is 0.038

Explanation:

Given;

mass of the Parker, m = 73.2 kg

applied force on the parker, F = 123 N

frictional force, Fs = 27.4 N

the coefficient of friction in the hall = ?

frictional force is given by;

Fs = μN

Where;

μ is the coefficient of friction

N is normal reaction = mg

Fs = μmg

μ = Fs / mg

μ = (27.4) / (73.2 x 9.8)

μ = 0.038

Therefore, the coefficient of friction in the hall is 0.038

6 0

3 years ago

Does hot water or cold water boil faster is that repeated observations using models are controlled experiments

lozanna [386]

Hot water boils faster since its already hot and dosnt take much more time to get as hot

4 0

3 years ago

A wave is a disturbance that carries from one place to another through matter of space

krok68 [10]

There's supposed to be a blank in the statement, where the answer is supposed to be inserted.

The question is supposed to say: "A wave is a disturbance that carries ______ from one place to another through matter or space".

To answer the question, write the word "<em>energy</em>" in the blank.

4 0

3 years ago

A policeman is chasing a criminal across a rooftop at 10 m/s. He decides to jump to the next building which is 2 meters across f

valina [46]

Answer:

They will meet at a distance of 7.57 m

Given:

Initial velocity of policeman in the x- direction, $u_{x} = 10 m/s$

The distance between the buildings, $d_{x} = 2.0 m$

The building is lower by a height, h = 2.5 m

Solution:

Now,

When the policeman jumps from a height of 2.5 m, then his initial velocity, u was 0.

Thus

From the second eqn of motion, we can write:

$h = ut + \frac{1}{2}gt^{2}$

$h = \frac{1}{2}gt^{2}$

$2.5 = \frac{1}{2}\times 10\times t^{2}$

t = 0.707 s

Now,

When the policeman was chasing across:

$d_{x} = u_{x}t + \frac{1}{2}gt^{2}$

$d_{x} = 10\times 0.707 + \frac{1}{2}\times 10\times 0.5 = 9.57 m$

The distance they will meet at:

9.57 - 2.0 = 7.57 m

8 0

4 years ago

The diagram shows two different types of fossils from the

ale4655 [162]

Answer:

I think the answer is A. X: Mold Y: Cast

Explanation:

Hope that helps!!!

5 0

3 years ago