Which picture shows an example of kinetic energy?

Answer:

Nonmetal reactivity decreases down a group because the nucleus' ability to gain more valence electrons weakens due to more nuclear shielding. For Metals: the most reactive metals are those that can lose their valence electrons the most easily. ... Francium is the most reactive metal

Explanation:

Answer:

While moving from top to bottom in a group of the periodic table, the reactivity of non- metals decreases. ... Thus, the tendency of gaining electron/s in the valence shell decreases as well as the chemical reactivity also decreases on moving from top to bottom in a group of non- metals.

Explanation:

Answer:

Sulfur

Explanation:

Answer:

I think it is B

Explanation:

Both prokaryotes and eukaryotes have all of those things except for organelles, which only eukaryotes have (also prokaryotes are smaller not eukaryotes)

Answer:

halved

Explanation:

If the value of volume doubles, but the mass stays the same, the value for density will be halved. The correct option is 3.

Density is the mass per unit volume. Density is a scalar quantity. It is denoted by d and the symbol for density is given as rho, a Greek symbol. Density is calculated as mass divided by volume.

Mass is the quantity of matter in a physical body. The product of the molar mass of the compound and the moles of the substance are defined as mass.

Volume is the space occupied by a three-dimensional object. Volume is calculated by dividing mass by density.

These three factors are related to each other. If two variables are given, the third can be calculated.

Thus, the correct option is 3. Halved.

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Answer:

I believe wood wood melt it faster. Why, because of how compact it is. It would be warmer. Metal would be a cooler temperature.

Explanation:

Answer:

it can't rust simply because it doesn't contain any iron or any of it's alloys. In fact, not even all metals rust.

Explanation:

The various field of science include the following;

1. Serology.

2. Bioinformatics.

3. Toxicology.

4. Biotechnology.

5. Genetics.

6. Epigenomics.

7. Biochemistry.

8. Taphonomy.

Science is the interest and application of information and understanding of the normal and social world taking after a precise strategy based on prove.

1. Serology: The study of blood.

2. Bioinformatics: The development of digital storage and technology for use in bioscience applications.

3. Toxicology: The study of poisons.

4. Biotechnology: The study and use of biological structures and processes for industrial purposes.

5. Genetics: The scientific study of heredity.

6. Epigenomics: The study of the effects and interaction of the expression of genes.

7. Biochemistry: The study of the chemistry of organisms.

8. Taphonomy: The study of decomposition of bodies after death.

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Answer:

An element is a single atom by itself found on the periodic table. A compound  is made when two or more elements chemically bond together. An example of an element is hydrogen. (H) An example of a compound is [tex]H_{2} O[/tex].

Explanation:

explained above

Answer:

Physical properties of a substance are characteristics that can be observed without altering the identity of the substance. Color, odor, density, melting temperature, boiling temperature, and solubility are examples of physical properties. Physical properties can be used to identify a pure substance.

Explanation:

Answer:

What????

Explanation:

20 characters

Answer:

The correct answer is - halogen.

Explanation:

The physical properties of the given elements are identical to the physical properties of the free bromine which is a reddish-brown liquid that has a pungent odor and highly reactive. It has an appreciable amber vapor at 25 degrees (room temperature).

Bromine is a halogen and like other halogens, it is also present in the diatomic molecule and located in the 17th group or VII A group of periodic tables. Exposure of the bromine causes irritation to the eyes, skin and respiratory system.

Explanation:

An electron has a negative charge and a proton is a positively charged particle. Electric field lines are used to express the direction of the electric field. For a positive charge, it is outwards while for a negative charge it is inwards. The attached figure shows the electric field lines between a proton and an electron. The field lines emerge from proton and terminate at electron.

The electrical force between charges is given by :

[tex]F=k\dfrac{q_1q_2}{r^2}[/tex]

r is the distance between charges

The force is directly proportional to the product of charges. It means that if the product of electrical charge increased, it means that the electrical force will increase proportionally.

Answer:

A.

Explanation:

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Answer:

A. Is the correct answer.

Explanation:

It is correct because you would need to read the sentence over with all the choices you have. and transformed makes sense.

Answer:

Chemistry, physics, astronomy and earth science.

Explanation:

Answer:

Explanation:

This is an awfully good question. Think carefully about which is which.

A solvent is something that will dissolve the solute.

So the solvent will carry the solute up (say) chromatography paper. It is the solute.

Answer:

the analysis of the relationships between different physical quantities by identifying their base quantities and units of measure and tracking these dimensions as calculations or comparisons are performed.

Explanation:

Answer:

B. Lindsay measures the sizes of the craters on the moon

Answer:

I think it's D but it's my (viewpoint)

Answer:

First change cm in m and mass is 38.6g. Volume. =200m

Explanation:

Now,

Density =mass /volume

38.6/200

0.193 density

Answer:

its 1.86 x 105

Explanation:

i learned it last year

Answer:

1.86 x 10^5

plz, mark brainliest

The side mirrors play an important role in providing the safety of a car and also help the drivers to see the vehicles behind the car. Most of the side mirrors have a small heating element in them which helps to defrost or deice.

When ice, snow or even just condensation builds up on your mirror, it can severely limit your visibility. The frost makes the smooth surface of the mirror rough, so that the parallel rays are reflected in different directions.

There are extensive and multiple refractions which cause the distortion of light and so that the frost looks white, whereas ice is clear also called black ice due to the colour of road surface.

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Answer:

1) wavelength

2) 1.03 x 10 ^ 4 hz

3) 8.1 x 10 ^4 m

Explanation:

Answer:

1) wavelength

2) 1.03 x 10 ^ 4 hz

3) 8.1 x 10 ^4 m

Explanation:

Answer:

Air/gas

Explanation:

Sound can travel faster through air/gas more effectively than solids or liquids.

Answer:

Temperature is one of the major factors that affects the rate of change of the liquid colour, this is because ; like when if you freeze hot water the ice formed will be clear transparent, while on the other hand, if we freeze cold water it would be foggy inside the ice. This change occurs because of the temperature difference of the cold and hot water.

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Thank You!!

Answer:

Well, Aluminum Oxide has a very high melting point. Carbon dioxide has a very low boiling point.

Explanation:

They are both talking about different things, melting and boiling. Aluminum Oxide's melting point is much higher then carbon dioxide's melting point. Hope this help, and good luck on your assignment (if one)

Answer:

The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (0.000000001 m).

Answer: Nanometer

Explanation:

The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (0.000000001 m).

...

Nanometer

imperial/US units 3.2808×10−9 ft 3.9370×10−8 in

Answer: for an example

volume can easily be calculated: pi*(d^2/4)*length -> pi*[(7x10^-2)/4]*70x10–2 = volume of iron rod {VOIR}

Density = mass / volume

Therefore

Mass = density x volume

However, weight is equals to ‘mass x g (free fall acceleration’

So mass is in kg but weight is a force so simple force equation to where ‘a (acceleration)’ in ‘F=ma’ is ‘g’.

Hence,

Weight = 9.81 ms^-2 (is ‘g’) x 7870 kgm^-3 x VOIR m^3 is *insert calculated answer* N.

Explanation: