Why does mining considered the most important industry?

Answers

Answer 1

Answer:

it makes most recourses and gives us most of a materials

Explanation:

Answer 2
states resources / info

Related Questions

doc based on this lab: https://phet.colorado.edu/sims/html/wave-on-a-string/latest/wave-on-a-string_en.html

Answers

Answer:

hope it helps make brainlliest ty

Minute after minute, hour after hour, day after day, ocean waves continue to splash onto the shore. Explain why the beach is not completely submerged and why the middle of the ocean has not yet been depleted of its water supply. A) Ocean waves can only bring water to the shore but cannot take it back. The momentum of the water particles switches direction when the wave hits the shore and this momentum takes all the water back into the ocean. B) Ocean waves bring the water and also take it all the way back into the ocean. As such, water does not pile up on the beach. C) Ocean waves can only bring energy to the shore; the particles of the medium (water) simply oscillate about their fixed position. D) None of the choices are correct.

Answers

Answer: C. Ocean waves can only bring energy to the shore; the particles of the medium (water) simply oscillate about their fixed position.

Explanation:

The reason why the beach is not completely submerged and the reason why the middle of the ocean has not been depleted of its water supply is due to the fact that water isn't transported by ocean waves.

It should be noted that even a single drop of water cannot be brought by the ocean wave to the shore from the middle of the ocean.

The only thing that the ocean waves can bring to the shore is energy. Hemce, the water particles oscillate in their fixed position which is vital in making sure that the beach isn't piled up with water.

A measure of an object's is a measure of the object's inertia.​

Answers

Answer: Mass is the quantity of matter in an object. More specifically, mass is a measure of the inertia, or “laziness,” that an object exhibits in response to any effort made to start it, stop it, or otherwise change its state of motion. Weight is the force of gravity on an object.

ASAP!!!
What is the purpose of a heavy stream appliance?


provides breathable air from attached air tanks

focuses the fluid flow into a heavier stream

moves or removes smoke and gases from buildings and passageways

removes citizens from burning or hazardous structures

Answers

Answer:

B is the answer.

Explanation:

I am doing the same Assignment.

which of the following is true of inertia

a) it is a property of motion
b) it is measured by weight

Answers

Answer:

it is a property of motion

Is induced current the same as induced voltage?​

Answers

Answer:Lenz's Law of Electromagnetic Induction. ... This voltage is called an induced emf as it has been induced into the conductor by a changing magnetic field due to electromagnetic induction with the negative sign in Faraday's law telling us the direction of the induced current (or polarity of the induced emf).

Explanation:

providing trademark protection

Answers

Answer:

what are you asking exactly?

The 5 Things You Must Do to Protect Your Trademark
1. Do Your Homework. The USPTO won't register your trademark if there is a “likelihood of confusion" with another registered trademark. ...
2. Prepare and File a Trademark Application. ...
3. Respond Promptly to Office Actions or Oppositions. ...
4. Monitor Your Trademark. ...
5. Maintain Your Trademark.

Answer if you actually have the answer unlike Miss Madhumitaa!!!!

A 20.0 cm tall object is placed 50.0 cm in front of a convex mirror with a radius of curvature of 34.0 cm. Where will the image be located, and how tall will it be? Please show all work. Use the steps below
Step 1: Find the focal length, step 2: find the image distance using the mirror equation step 3: Use the magnification relationship to find the image height.

Answers

it’s the first one 28282929/9292

Explanation:

Hey Why you wrote my name hn?

who is the first physicist and what did he invented?​

Answers

Answer:

hippocrates

I guess..........

What is a pulley and the how does it make lifting heavy loads easier?

Answers

It uses kinetic energy

how would you describe gravity?

Answers

Answer:

An intangible force that attracts objects to each other The weight of the Earth is what holds you on the ground and causes objects to fall.

Explanation:

Explanation:

I would describe it as a force that keeps Earth from floating away and keep us humans and other objects on earth's surface.

electrons that move away from their atoms cause?

Answers

Explanation:

when a positive charged object is placed near a conductor electrons are attracted the object when electric voltage is applied an electric field within the metal triggers the movement of the elections making them shift from one end to another end of the conductor electrons will move toward the positive side

define the artificial silk?​

Answers

Answer:

Artificial silk or art silk is any synthetic fiber which resembles silk, but typically costs less to produce.

Explanation:

Answer:

Artificial silk or art silk is any synthetic fiber which resembles silk, but typically costs less to produce. Frequently, "artificial silk" is just a synonym for rayon. When made out of bamboo viscose it is also sometimes called bamboo silk.

Seasons change because: A. Earth is titled on its axis as it revolves around the Sun B. Earth rotates on its axis. C. The amount of energy from the Sun changes. D. Earth's distance from the Sun changes.

Answers

Answer:

Its A

Explanation:

A body of mass 36 g moves with SHM of amplitude A = 13 cm and period T = 12 s. At
time t=0 the displacement, x, is 13 cm. (a) Find the velocity when x = 5 cm. (b) Find the
force acting on the body when t = 2 s.

Answers

Answer:

Explanation:

.......................

- Find the velocity of a wave in the ocean if the wavelength is 2.0m and the frequency is 0.56Hz.
Please please help

Answers

1.12 m/s is the velocity. You can get the velocity of a wave by multiplying the frequency and wavelength together. The product is the velocity.

Please help! I will give brainliest! Also can you please explain why it’s that answer. Thanks!

Answers

Answer:

B

Explanation:

Forces are pushes or pulls. They can be balanced or unbalanced. If unbalanced they can change the shape of objects and change the way they are moving (speed-wise)

what causes a ball rolling across the floor to slow down low of motion​

Answers

Answer:

Friction is a force that slows down moving objects. If you roll a ball across a shaggy rug, you can see that there are lumps and bumps in the rug that make the ball slow down. The rubbing, or friction, between the ball and the rug is what makes the ball stop rolling.

According to Newton’s second law, the mass of an object is 120kg and it is accelerating at a rate of 5m/s2 . The object’s force would be

Answers

Answer:

F = 600 N

Explanation:

The second law is F = m * a

The mass (m) is in kg = 120

The acceleration in in m/s^2 = 5

The force is in Newtons.

m and a do not require any conversions. They are in the correct units.

F = 120 * 5

F = 600 N

help meeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

Just like a chemical reaction.

Help me out please, don't send links

Answers

Answer:

==> C. represent troug of a transverse wave

is the correct answer of this question

hope it helps

Testing shows that a sample of wood from an artifact contains 12.5% of the original amount of carbon-14. Given that the half-life of carbon-14 is 5730 years, how old is the artifact?

A. 22,920 years
B. 17,190 years
C. 11,460 years
D. 5730 years

Answers

Answer:

B. 17,190

Explanation:

got it right, trust

The age of the artifact is 17190 years. So, the correct option is B.

What is meant by half life ?

The amount of time needed for half of a radioactive sample's atomic nuclei to spontaneously decay (transform into another nuclear species by producing particles and energy) is known as the half-life.

Here,

Amount of Carbon-14 present in the given sample = 12.5 %

Given that the half-life of Carbon-14 is 5730 years. That means after a period of 5730 years, the percentage of Carbon-14 present in the sample will be 50% of the original amount.

So, age of the artifact when 50% is present is 5730 years.

Thus, after a period of 2 half-lives, the amount of carbon-14 present will be, 25%.

So, age of the artifact when 25% is present,

t = 2 x 5730 = 11460 years

Therefore, we can say that,

The age of the artifact when 12.5% is present,

t' = 3 x 5730 = 17190 years

Hence,

The age of the artifact is 17190 years. So, the correct option is B.

To learn more about half-life, click:

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Differentiate between:

a. Compression and Rarefaction

Answers

Answer:

Explanation:

Compression

The region in a medium where the distance between the vibrating molecules is minimum is compression.

This is the region with higher air pressure than the surrounding .

Rarefaction

The region in a medium where the distance between the vibrating molecules is maximum is rarefaction.

This is the region with relatively low air pressure.

hope it helps :)

Always swim with a _____, no matter where you are
A.Partner
B.bikini
C.floatation device
D.hair cap

Help ASAP!

Answers

Answer:

A.

Explanation:

Never swim alone just in case something happens

Answer:

the answer is partner

Explanation:

this is common sense. if you are drowning or need help your partner will either be able to help you, or get help this is why u should NEVER swim alone no matter where or who you are. May i be marked brainliest?

What is the temperature increase of 4.0 kg of water when it is heated by an 8.0 ^102 W immersion heater for exactly 10.0 min? (cp = 4186 J/kg·°C)

Answers

Answer:

ΔT = 28.667°C is the answer.

Explanation:

Given,

Mass of water = 4.0 kg

Water is heated by = 8 × 10² W = 800 W

Time = 10 min = 10 × 60 = 600 s

Now,

using the equation of specific heat,

Q = mcΔT

where c is the specific heat capacity of water = 4186 J/kg°C

Q = Pt

Substituting,

Pt = mcΔT

800 × 600 = 4 × 4186 × ΔT

480000 = 16744 × ΔT

ΔT = 28.667

∴Temperature increased, ΔT = 28.667°C

You could take magnet and ____ it in half and all the pieces would have ____ and ____ ______ .

Answers

You could take a magnet and break it into pieces and all of the pieces would have north and south poles.

how does the value of the electrostatic force vary with the distance between them?

Answers

The size of the force varies inversely as the square of the distance between the two charges. Therefore, if the distance between the two charges is doubled, the attraction or repulsion becomes weaker, decreasing to one-fourth of the original value.

If it takes 726 watts of power to move an object 36 m in 14 s, what is the mass of the object?

Answers

Answer:

Explanation:

Given

Power (p)= 726 watt

Time (t) = 14 sec

distance travelled (d; h) = 36 m

mass (m) = ?

we know

Power (p) = W/t  ( w = work done )

p = m * g * h / t  ( w = m * g* h)

726 = m * 10 * 36 / 14 ( g = 10 m/s^2)

m = 28. 23 kg

or if we use the value of g as 9.8 m/s^2

the mass will be

= 28.8 kg

hope it helps :)

The mass of the object if it takes 726 watts of power to move an object 36 m in 14 s is 28.8 kg.

What is mass?

An object's inertia, a fundamental property, is measured by its mass, a fundamental indicator of the volume of substance inside the thing. Definitions of mass can seem circular since it is such a fundamental quantity and is challenging to define in terms of another.

It is possible to define every mechanical quantity in terms of mass, length, and time. The SI unit for mass, denoted by the letter m, is the kilogram. While mass is typically thought of as an immutable feature of an item, relativistic mass must be taken into account when traveling at speeds close to the speed of light.

Given:

The Power, p = 726 watt

The Time, t = 14 sec

distance travelled, d = 36 m

Calculate the power by the given formula

p = W / t  

p = m * g * h / t  ( w = m * g* h)

726 = m * 9.8 * 36 / 14 ( g = 10 m/s^2)

m = 28. 8 kg

Therefore,  the mass of the object If it takes 726 watts of power to move an object 36 m in 14 s is 28.8 kg.

To know more about mass:

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A high-temperature gas is compared to the same gas at lower temperature. Which of the following statements is true?


A. Every molecule in the high-temperature gas is moving faster than every molecule in the low-temperature gas.

B. The average molecular speed in the high-temperature gas is faster than the average molecular speed in the low-
temperature gas.

C. Both A and B are true.

D. Neither A nor B is true.

Answers

Answer:

I think it is C

Explanation:

If the temperature of a gas increases, the gas particles have a higher average speed as they gain kinetic energy. They collide more frequently with the walls of the container, which produces a bigger pressure.

Complete the passage to describe wave interaction of diffracted waves.


Diffracted waves of light interact with other waves and interference occurs. When the interference is constructive, this is shown as a

band on the screen. When the interference is destructive, this is shown as a

band on the screen.

Answers

Answer: When the interference is constructive, this is shown as a bright band on the screen. When the interference is destructive, this is shown as a dark band on the screen.

Explanation: edge 2021

Answer:Bright and Dark

Explanation:

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