How can you describe a mineral that sparkles, breaks into thin sheets, and has a measure of 9 on the hardness scale?

1. It is metallic, has cleavage, and can be easily scratched.
2.It is non-metallic, has cleavage, and can be scratched by a nail.
3.It is metallic, has cleavage, and can be scratched with special equipment.
or 4. It is non-metallic, does not have cleavage, and can be scratched with difficulty.

Answer:

These elements are metalloids

Answer: C. Metalloids

Explanation:

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Answer:

When going from slower medium to a faster medium, light is bent _downwards_.

Explanation:

hope this helps you!

Answer:

Explanation:

Weathering is the breaking down of rocks into smaller pieces and deposition is the building up of some kind of natural structure using erosion. So basically its rocks moving around to create bigger, better rocks.

Answer:

What do yalls teachers be givin yall?

Explanation:

Here the given weights are

W=mg so no need to multiply with acceleration due to gravity.

So what can he do

Answer: B “object 3 will accelerate upward the fastest, and object 2 will not move.”

Explanation:

Answer:

Explanation:

1st one

What is your evidence?

Very heavy professional or restaurant pans will have iron handles, while those for home use will be made of brass or stainless steel. All are perfectly safe for oven use.

Answer:

HEHEHE HA

Explanation:

Clash royale

1: Equilibrium

[] When two forces are equal in opposite directions, they are in a state of equilibrium

2: Friction

[] It can be hard to sometimes slide a paper across a table, roll a car across the ground, etc etc. This is because of a force called friction which resists motion

3: Displacement

[] Work is only "done" when the object or surroundings are having movement, or in motion, and this creates displacement

4: Force

[] A force is a push/pull in any direction, this is a simple definition so not much can be added.

5: Inertia

[] Inertia is a force that likes to remain unchanged, or without movement

6: Effort

[] "Meg is holding up weight without movement. She hasn't done any work since it did not move, but is tired. Why?" Effort! She still put in effort even though no "work" happened

7: Work

[] Force times displacement is the equation for work

8: Motion

[] Look back to #3, when there is motion we can tell work is done

Have a nice day!

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- Heather

Answer:

it's either a b c or do I swear

Answer:

a

Explanation:

just needed the points sorry

Answer:

light itself doesn't have a shadow

Explanation:

light emits light to where things around the light may create the shadows

Answer:

No

Explanation:

Actually it the complete opposite. A shadow is an absence (or decrease of) of light because an object blocking its path.

Scientist can gather the information of the wind speed and location, for better understand hurricanes

A hurricane is a  tropical cyclone is a fast rotating storm system with a low-pressure core, a closed low-level atmospheric circulation, high winds, and a spiral arrangement of thunderstorms causing heavy rain.

Aircraft can collect thorough, exact measurements of winds in a cyclone, which can assist researchers understand what is going on inside the storm and allow for better forecasts.

Hence,scientist can gather the information of the wind speed and location, for better understand hurricanes

To learn more about hurricanes, refer:

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Answer:

1. Pecan tree 1 and pecan tree 4

2. I don't know

Explanation:

Answer:

Calcium Compunds-The fluoride,CaF²,is important to the production of hydrofluoric acid,Wich is made from CaF² by the action of sulfuric acids.CaF² us used laboratory instruments as a window material both infrared and ultraviolet radiation.

Calcium Compunds-The fluoride,CaF²,is important to the production of hydrofluoric acid,Wich is made from CaF² by the action of sulfuric acids.CaF² us used laboratory instruments as a window material both infrared and ultraviolet radiation.

Thus, Since the turn of the 20th century, glass has been made with calcium fluoride, a novel substance. It is a solid that dissolves readily in water and has a special physical and chemical makeup that makes it suitable for usage as a glassmaking material.

Glass used in windows, bottles, and other glass goods was formerly created from calcium silicates before the invention of this substance. The new glass, referred to as glass with added fluorides, has a number of advantages over calcium silicates, which have drawbacks that make them unsuitable for the creation of modern glass.

Calcium Fluorine is a naturally occurring element that is frequently found in rock, soil, plants, and animals.

Thus, Calcium Compunds-The fluoride,CaF²,is important to the production of hydrofluoric acid,Wich is made from CaF² by the action of sulfuric acids.CaF² us used laboratory instruments as a window material both infrared and ultraviolet radiation.

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The sound of a flute is poetic, light, mellow, and soft. Flute is a woodwind musical instrument produces the mild sound.

Sound is a vibration that propagates as an acoustic wave, through a transmission medium such as solid, liquid ang gases. When an object vibrates, it causes a movement in surrounding air molecules. The molecules collide with the molecules close to them, causing them to vibrating as well.

The sound from flute comes due to the vibrating columns of air inside it. In a flute, the air gets vibrated and the resonator amplifies the vibration and gets modified into sound. When air is blown into the holes of flute, it creates the vibration in the air molecules inside the flute and hence, sound is produced.

The flute can produced continuous sound by the presence of number of holes in it. The flute sounds may be high pitch or soft tone depends on the position of upper and lower lips on flute.The sounds of flute are rich, gentle and gracefull.

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Answer:

You will receive an electrical shock. You will receive a shock if you touch two wires at different voltages at the same time. You will receive a shock if you touch a live wire and are grounded at the same time. When a circuit, electrical component, or equipment is energized, a potential shock hazard is present.

Explanation:

sorry this is like a year later and I hope this will help you if you haven't got it already

Answer:

Explanation:

They will short circuit and shock u did the exam

Answer: 444.5N (Newtons)

Answer:

hope this help :)

Explanation:

Cancer is the name given to a collection of related diseases. Cancer is more than one type of disease. In cancer, as a result of genetic mutations, this regulatory process malfunctions, resulting in uncontrolled cell proliferation. CAD, Stroke, Respiratory illness, COPD are all diseases related to cancer. Inherited genetic mutations play a major role in about 5 to 10 percent of all cancers. There are many environmental pathogenic factors that can cause cancer. For example , Tar and Coal-Tar Pitch , Emissions , Secondhand Tobacco Smoke (Environmental Tobacco Smoke) , Arsenic , Soot , Asbestos , Wood Dust. When cancer cells break away from a tumor, they can travel to other parts of the body through the bloodstream or the lymph system. Cancer is hard to treat in later stages because it probably has already spread through out the body. The grade of a cancer depends on what the cells look like under a microscope. In general, a lower grade indicates a slower-growing cancer and a higher grade indicates a faster-growing one. Some examples of cancer treatments of cancer are, Surgery, Chemotherapy, Radiotherapy, Cancer drugs, Hormone therapy, Stem cell and bone marrow transplants, Targeted cancer drugs. A new treatment involving a photosensitising agent that makes cells more sensitive to light and, by doing so, causes cancer cells to be destroyed when a laser light is directed on a cancerous area. One challenge is, druggable genomic alterations are diverse and represent only small subsets of patients in certain tumor types, which limits testing their clinical impact in biomarker-driven clinical trials. Next-generation sequencing technologies are increasingly being implemented for molecular prescreening in clinical research, but issues regarding clinical interpretation of large genomic data make their wide clinical use difficult.

Answer:

B

Explanation:

i got B for my answer sorry if wrong

Answer:

This theory is true and should continue to expand on this theory.

Explanation:

hope this helps.

Answer:

There are three basic categories of musical instruments: percussion, wind, and stringed instruments. Most musical instruments use resonance to amplify sound waves and make sounds louder. In a musical instrument, the whole instrument and the air inside it may vibrate when the head of the drum is struck.

Answer:

id say the first option.

Explanation:

hope this helps you!

Answer:

B.) Temperature decreases with an increase in altitude.

As you climb a mountain, you can expect the air temperature to decrease by 6.5 degrees C for every 1000 meters you gain. This is called the standard average lapse rate.

Answer: C

Explanation:

A temperature change