PLSSS HELP

The graph shows the distance traveled by a ball over a certain amount of time. According to the graph, between 2 and 4 seconds the ball was-

A. traveling at a constant speed.

B. increasing its speed.

C. changing its direction.

D. remaining at rest.

Answer:

For example, the particles in solid steel are closer together than the particles in molten—or melted—steel. However, water is an important exception. The molecules that make up ice actually have more space between them than the molecules in liquid water do.

Explanation:

The statement is "energy of atom."

An atom is smallest unit of ordinary matter that forms a chemical element.

The atom in solid steel are moving more slowly than the atom in liquid steel.

The particles in solid steel are closer together than the particles in molten steel.

To know more about molten steel click here

https://brainly.com/question/18764273

#SPJ2

Answer: A

Explanation: Mass and volume is the amount, amount doesn’t make the phase of a matter change.

Answer:

Substances can change phase—often because of a temperature change. At low temperatures, most substances are solid; as the temperature increases, they become liquid; at higher temperatures still, they become gaseous.

The process of a solid becoming a liquid is called melting. (an older term that you may see sometimes is fusion). The opposite process, a liquid becoming a solid, is called solidification. For any pure substance, the temperature at which melting occurs—known as the melting point—is a characteristic of that substance. It requires energy for a solid to melt into a liquid. Every pure substance has a certain amount of energy it needs to change from a solid to a liquid. This amount is called the enthalpy of fusion (or heat of fusion) of the substance, represented as ΔHfus. Some ΔHfus values are listed in Table 10.2 “Enthalpies of Fusion for Various Substances”; it is assumed that these values are for the melting point of the substance. Note that the unit of ΔHfus is kilojoules per mole, so we need to know the quantity of material to know how much energy is involved. The ΔHfus is always tabulated as a positive number. However, it can be used for both the melting and the solidification processes as long as you keep in mind that melting is always endothermic (so ΔH will be positive), while solidification is always exothermic (so ΔH will be negative).

Table 10.2 Enthalpies of Fusion for Various Substances

Explanation:

Answer:

1.111 or since you want me to round 1.1 if not right let me know please.

Explanation:

Answer:

1.1

Explanation:

all you have to do is divide the mass by density to get the volume yurr

Answer:

B

Explanation:

Answer:

THANK YOU

YOU TOO!

Explanation:

thank you

so much i hope you have a great day aswell

Answer:

Explanation:

Drafting the Declaration of Independence in 1776 became the defining event in Thomas Jefferson's life. Despite Jefferson's desire to return to Virginia to help write that state's constitution, the Continental Congress appointed him to the five-person committee for drafting a declaration of independence. That committee subsequently assigned him the task of producing a draft document for its consideration. Drawing on documents, such as the Virginia Declaration of Rights, state and local calls for independence, and his own draft of a Virginia constitution, Jefferson wrote a stunning statement of the colonists' right to rebel against the British government and establish their own based on the premise that all men are created equal and have the inalienable rights of life, liberty, and the pursuit of happiness.

Through the many revisions made by Jefferson, the committee, and then by Congress, Jefferson retained his prominent role in writing the defining document of the American Revolution and, indeed, of the United States. Jefferson was critical of changes to the document, particularly the removal of a long paragraph that attributed responsibility of the slave trade to British King George III. Jefferson was justly proud of his role in writing the Declaration of Independence and skillfully defended his authorship of this hallowed document.

Answer:

D

Explanation:

I THINK. HOPE THIS HELPS

When nitrogen fills its valence shell, three electrons are gained, creating N-3. Thus, the correct option for this question is A.

A valence shell may be defined as the outermost shell of an atom that significantly contains valence electrons. This shell is actively involved in the pairing and sharing of elements from one another.

The atomic number of nitrogen element is 7, and its electronic configuration is [tex]1s^2, 2s^2, 2p^3[/tex]. From this electronic configuration, we come to know that the number of electrons present in the outermost shell or valence shell of nitrogen is 5.

In order to fulfill its valence shell and obtain stability, it requires three electrons to fulfill its octet. These three electrons are gained, and thus creating N−3.

Therefore, three electrons are gained, creating N−3 is the process that nitrogen performs after filling its valence shell. Thus, the correct option for this question is A.

To learn more about Valence shell, refer to the link:

https://brainly.com/question/371590

#SPJ2

Answer:

The answer is A. Ocean Energy and C. Wind Energy on E D G E N U I T Y

Explanation:

In an ecosystem, renewable energy sources Tom Zambrano works on are ocean energy and wind energy.

An ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

Learn more about ecosystem,here:

https://brainly.com/question/13979184

#SPJ6

Answer:

6

Explanation:

Answer:

2

Explanation:

Explanation:

40 m/s2

Formula for acceleration will be:

F = m*a

Force = mass*acceleration

•

•

F = m*a

= 40 * 180 - 140 = a

1600 = a

1600/40 = a

40 = a = 40 m/s2

Answer:

5

Explanation:

Answer:

c

Explanation:

Answer:

A

Explanation:

Answer

Explanation:

Protons would be the first answer since protons have a + charge. Neutrons would be second sicne neutrons have a neutral or 0 charge. Electrons would be the last since electrons have a - charge.

Answer:

Explanation:

mhmmmmmmm yeah i do not know sorry thx for the points :P

Answer:

Environmental and economic benefits of using renewable energy include: Generating energy that produces no greenhouse gas emissions from fossil fuels and reduces some types of air pollution. Diversifying energy supply and reducing dependence on imported fuels.

Explanation:

Answer:

b

Explanation:

Answer:

C.they each contributed to the development of the atomic theory

Explanation:

Mechanical waves can transmit through a medium and electromagnetic waves can travel in vaccum and both can transfer energy.

Mechanical waves are those waves in which oscillation of matter takes place in any medium.

Electromagnetic waves are those in which electric field and magnetic field are present in the perpendicular direction to each other and also able to propogate in vaccum medium.

Both waves can transfer energy and travel in the transverse direction.

Hence mechanical waves can transmit through a medium and electromagnetic waves can travel in vaccum.

To know more about mechanical & electromagnetic waves, visit the below link:
https://brainly.com/question/16064726

Answer:due to the heat of it the molicules expand and therefor touch also on rentry due to heat

Explanation:

The characteristics of the thermal transfer process allow to find the results for the questions regarding the temperature in the two cases are:

Thermal conduction processes are mechanical by which thermal energy (temperature) is transported, they ask to be of three types:

At the initial moment the two layers are not touching, therefore the only possible process is radiation, therefore the outermost body may be at a very high temperature and the inner body may be cold since radiation heating is the less efficient.

When the materials touch, the energy transfer process is thermal conduction, therefore the interior temperature will increase significantly. The thermal conduction process is one of the fastest, therefore the temperature rises rapidly.

In conclusion, using the characteristics of the thermal transfer process, we can find the results for the questions regarding temperature in the two cases are:

Learn more here: brainly.com/question/3123993

Answer:

c) protons

Explanation:

Answer:

C: PROTONS

Explanation:

Answer:

Weather, Time, and Altitude

Explanation:

The litmus paper shows red colour for acidic substances and blue colour for basic substances. Thus a red litmus paper will turn blue if it is dipped in an alkaline solution. Soap is  alkaline and given blue color to litmus.

pH of a substance is its measure of concentration of H+ ions in it. It is mathematically negative logarithm of H+ ion concentration. Thus, pH measures how much acidic or basic the solution is.

A pH of of 7 is neutral having no acidity or basicity. A pH less than 7 is acidic and pH greater than 7 is basic in nature. Vinegar is acetic acid and it shows less pH . Lemon juice also acidic since it contain citric acid whereas, soap is basic.

A litmus paper is used to identify whether a substance is acidic or basic. It shows red color for acidic solutions and blue for basic solutions. If the red litmus paper is dipped in acidic one, it shows no colour change if it is dipped in basic solution then it turns to blue.

Soap is highly alkaline and it changes red litmus paper to blue.

To find more on pH, refer here:

https://brainly.com/question/491373

#SPJ6

Answer:

C

Explanation:

An atom of gold with 79 protons, 79 Electrons and 118 neutrons would have a mass number of  197 gold. Therefore, option C is correct.

The total number of protons and neutrons in an atomic nucleus is known as the mass number, often known as the atomic mass number or nucleon number. In atomic mass units, it is roughly equivalent to the atom's atomic mass.

Because it indicates the mass of the entire number of protons and neutrons in an element, the mass number of an element is so named. The atomic number and atomic mass of an element are typically listed in periodic tables along with the chemical symbols for each element.

The third element in the periodic table's eleventh column is gold. It is under the transition metal category. The most common isotope of gold has 118 neutrons and 79 protons together with 79 electrons.

Thus, option C is correct.

To learn more about mass number, follow the link;

https://brainly.com/question/4408975

#SPJ6

Answer:

moving i think! Hope this helps

Explanation: