CHEMISTRY MIDDLE SCHOOL

A mass of 9.2 kg is accelerated at 2.1 m/s^{2}. what is the force?

Answers

Answer 1

Answer:

Answer:

The force is 19.3N

Explanation:

F = m × a

= 9.2 × 2.1

= 19.3N (3sf)

Further Explanation

Earthquake mostly takes place when rock slide past a fault, that is, when there is a break in the Earth’s crust along plate boundaries.

Tectonic plates don’t move very fast, their movement is very slow but if they jam one another, it will result in the building up of tension and pressure on the locked section of the tectonic plates.

In the end, the pressure on the locked section will give in to the increased pressure and make the plates to rapidly move past each other and result in an earthquake.

Earthquakes can as well occur as a result of human activities such as nuclear experiments, mining, etc.

An earthquake can be very dangerous because wherever it happens, it always involves loss of life and property

Therefore, the motion of tectonic plates is the source of energy for an earthquake.

LEARN MORE:

What is the source of energy for an earthquake? brainly.com/question/373664
What is the source of energy for an earthquake? brainly.com/question/2314313

KEYWORDS:

earthquakes
source of energy
tectonics
plates
nuclear experiment

I learned this in science a while ago, it's the movement of tetonic plates

Which type of fire is sometimes set as a way to protect a forest?

Answers

Answer;

Surface fire

Explanation;

Surface fires are type of forest fires that may burn primarily as a surface fire, spreading along the ground as the surface litter and undergrowth on the forest floor and is engulfed by the spreading flames.
They are the easiest fires to put out and cause the least damage to the forest. Surface fires create the least amount of destruction.
These fires protects the forest by releasing the nutrients that would otherwise decompose slowly, having little benefit to the ecosystem.
Additionally, these fires allow more open spaces for new and different kinds of vegetation to grow and receive sunlight.

Students are completing a table about a particular subatomic particle that helps make up an atom.A 3-column table with 2 rows. The first row has entries Mass (a m u), location, charge. The second row has entries 1/2,000, nothing, has a charge.

What best explains how they should complete the table?

with “Inside the nucleus,” because the particle is a proton
with “Inside the nucleus,” because the particle is a neutron
with “Outside of the nucleus,” because the particle is a proton
with “Outside of the nucleus,” because the particle is an electron

Answers

Answer:

with “Outside of the nucleus,” because the particle is an electron

Explanation:

The table is best completed with “Outside of the nucleus,” because the particle is an electron.

The particle being described is an electron.

Electrons are negatively charged particles with a mass that is about $(1)/(2000)$ of protons and neutrons

Mass(a.m.u) location charge

$(1)/(2000)$ outside of the nucleus negative charge

Electrons orbits round the nucleus in distinct energy levels.

Final answer:

The subatomic particle described in the table is an electron, which is found outside of the nucleus of an atom.

Explanation:

The particle described in the table has a mass of 1/2,000 atomic mass units (a.m.u) and carries a charge. Based on this information, we can conclude that the particle being described is an electron. Electrons are negatively charged subatomic particles that orbit the nucleus of an atom, meaning they are found outside of the nucleus. Therefore, the correct entry for the location column in the table should be Outside of the nucleus.

Learn more about subatomic particles here:

brainly.com/question/32192242

#SPJ3

I don’t understand this page, can someone help?

Answers

12. V.
13. W.
14. A.
15. R.
16. N.
17. X/Y
18.X/Y
19. M.
20. O.
21. W.
22. I.
23. U.
24. T.
25. P.

————
I believe that is all right
Sorry if not, Gl!
By the way, the ones that are “X/Y”
are the same answer so just put either X or Y.

Which is a defining trait of a mineral?

Answers

traits which are used to identify and describe mineral species.

If someone tells me that scientific knowledge cannot be changed or modified how would I answer that statement

Answers

You would say Scientific knowledge is always being changed and performed in different ways. Scientific knowledge is always being changed as scientist are experiencing and collecting new information everyday using the scientific method.

Final answer:

Scientific knowledge can be changed or modified as scientists use systematic approaches and rigorous methodologies to gather evidence and formulate theories. The scientific method encourages scientists to question existing knowledge, challenge hypotheses, and propose new ideas. Peer review and continuous evaluation help refine scientific knowledge.

Explanation:

Scientific knowledge can indeed be changed or modified. The nature of scientific research is based on the idea of continuous learning and refining our understanding of the world. Scientists use systematic approaches and rigorous methodologies to gather evidence and formulate theories, but these theories are always subject to revision and refinement as new evidence emerges. This is a key aspect of the scientific method, which encourages scientists to question existing knowledge, challenge hypotheses, and propose new ideas.

For example, the theory of evolution has undergone several modifications and updates since it was first proposed by Charles Darwin. As new fossil evidence, genetic studies, and experimental observations have emerged, our understanding of evolutionary processes has evolved and become more nuanced.

In addition, the scientific community engages in peer review, where scientists evaluate and critique each other's work. This process ensures that scientific knowledge is continuously evaluated and refined, and any flaws or limitations in research are identified and addressed.