Analyze the definition of light-year. Why is it in space we use light-year to
measure distance? *

Answers

Answer 1

Answer:

Because the distance is too far to count with any other way

Explanation:


Related Questions

Radiant heat is typically found

A.in empty space
B.I’m water
C.in mountains
D.in bricks

Answers

Answer:

A.in empty space

Explanation:

Radiant heat creates heath through both convection and radiation. Their purpose is to heat up an environment, aka empty space.  

Fire ants move in to a new environment with the lizards.what will most likely happen to the lizard population over the next several years

Answers

Answer:

Some lizards in the eastern U.S. have adapted to invasive fire ants -- which can bite, sting, and kill lizards -- reversing geographical trends in behavioral and physical traits used to avoid predators. A new study describing this reversal appears online on November 29, 2018, in the journal Global Change Biology and reveals that new environmental challenges can override the historical influences that originally determined geographical trends in traits.

"Rapid environmental change, be it from changing climate or the introduction of invasive species, is putting a lot of pressure on native species," said Christopher Thawley, graduate student at Penn State at the time of the study and first author of the paper. "Usually when researchers look at how native species might respond to these kinds of threats, they might measure one characteristic of the animal and at one or a few sites. In this study, we looked at three separate characteristics of eastern fence lizards from thirteen sites spanning a thousand miles and found that these lizards are capable of adapting in a concerted way to meet the threat of invasive fire ants, and in a relatively short time frame."

Explanation:

The
tell
you which element it is.
Atoms of the same element with a different number of NEUTRONS are
Atoms of the same element with a different number of ELECTRONS are
The PROTONS and NEUTRONS Can/Can't leave an atom during a
chemical reaction. The Electrons Can/Can't leave an atom during a
chemical reaction.
In a balanced atom, the
equal the

Answers

Answer:

Isotopes

Explanation:

Isotopes are atoms of the same element that contain an identical number of protons, but a different number of neutrons. Despite having different numbers of neutrons, isotopes of the same element have very similar physical properties.

BRAINLIST!!

Water often has dissolved gases and other chemicals in it. When this water encounters rocks, the minerals in the rocks can be changed by the process of

A.
deposition
B.
erosion
C.
sedimentary mineralization
D.
chemical weathering.

Answers

B erosion is the answer
Answer is B erosion!!!!

Thermal expansion occurs when particles of matter move farther apart as temperature increase. True or false ?

Answers

Answer:

true

Explanation:

please help me out i will give you brainlist. 0.500 is wrong

Answers

Answer:  b) 0.250 mol

============================================

Work Shown:

Using the periodic table, we see that

1 mole of carbon = 12 grams1 mole of oxygen = 16 grams

These are approximations and these values are often found underneath the atomic symbol. For example, the atomic weight listed under carbon is roughly 12.011 grams. I'm rounding to 2 sig figs in those numbers listed above.

So 1 mole of CO2 is approximately 12+2*16 = 44 grams. The 2 is there since we have 2 oxygens attached to the carbon atom.

-------------------

Since 1 mole of CO2 is 44 grams, we can use that to convert from grams to moles.

11.0 grams of CO2 = (11.0 grams)*(1 mol/44 g) = (11.0/44) mol = 0.250 mol of CO2

In short,

11.0 grams of CO2 = 0.250 mol of CO2

This is approximate.

We don't need to use any of the information in the table.

Answer:

.250

Explanation:

how can you tell if an substance is an elements

Answers

Answer:

A substance that cannot be broken down into chemically simpler components is considered an element

Hope that helps:)

Which of these best describes the relationship between the inner core, outer core, mantle, crust, asthenosphere, and lithosphere?

Answers

The question is incomplete, the complete question is;

Which of these best describes the relationship between the inner core, outer core, mantle, crust, asthenosphere, and lithosphere?

A: The coolest layers are farthest from the core.

B: The least dense layers are closest to the core.

C: The layers with the highest concentration of metals are closest to the crust.

D: The layers that remain in a molten state are closest to the crust.

Answer:

The coolest layers are farthest from the core.

Explanation:

When we talk about the internal structure of Earth, we mean the subdivisions of the solid Earth, that is, the concentric spherical layers that marks out the structure of the solid Earth.

The inner core is the innermost part of the earth's core and is known to have extremely high temperature. This high temperature steadily decreases as you approach the earth's surface.

Hence, the coolest layers are farthest from the core.

It's football season! Big Bubba Brown is running full speed trying to tackle the quarterback before he throws the ball. Wham! He got him! What happens to Big Bubba Brown?
A. Bubba uses all of his energy to tackle the quarterback.
B. Bubba and the quarterback lose their energy and fall to the ground.
C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.
D. Bubba knocks the quarterback down and keeps running at the same speed as before the tackle.

this is science btw.

Answers

Answer:

C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.

Explanation:

I majored in Science

Answer:C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.

just did the usatestprep  

Which of the following is considered a dilute solution? Choose all that apply.
Very sweet tea
Contact lens solution
Tide pods (laundry detergent)
Swimming pool water

Answers

Answer:

Very sweet tea

Explanation:

yeah... because sweet tea can cause tooth decay in our mouth thats why...(Please check the other answers also...Its all my point of view....thank you)

SCIENCE
Does combustion need oxygen?

A. Yes
B. No

Answers

Answer: a. Yes

Explanation:

Answer:

A. yes

Explanation:

In order to burn this fuel, oxygen is needed, as it is with any fire. The waste products from the combustion process are water and carbon dioxide. Thus, we breathe because oxygen is needed to burn the fuel (sugars and fatty acids) in our cells to produce energy The air we breathe contains about 21% oxygen.


You arrive at English class 45 seconds after leaving math which is 100
meters away. How fast did you travel?

Answers

Answer:

4.97097

Explanation:

You traveled 4.97097 mph.

How does gravity help to demonstrate a cause-and-effect relationship?

Answers

The cause of no gravity means the effect will be we float.

Answer:

Gravity helps show a cause and effect by demostarting how one object will have an effect on another object.

Explanation:

If you bounce a ball, it will fly back up, but it will fall down again because of gravity. The cause is GRAVITY and the effect is the ball FALLINg. Now, because o fgravity, when the ball bounces up again, it will only bounce 1/2 the hieght, having another cause and effect. As gravity pushes down on objects, the more an object is effected by it, the more presure it will have.

Help me please an thank you

Answers

Molecular formula

hope that helps^^

the stimulus is related to?​

Answers

Answer:

The government :) lol

Explanation:

A passenger elevator travels from the first floor to the 60th floor, a distance of 210 m, in 35s. What is the elevator’s speed?

Answers

Answer:6m per second

Explanation:

What is the meaning of this painting

Answers

Answer: things arnent always as they seem

Explanation:

Fill in the blank...
Each element is made up of only one kind of ________

Answers

Each element is made up of only one kind of atom.

how would you describe the forces between the particles of solids??

Answers

Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other.

Answer:

Explanation:

In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. ... The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other.

Is it okay if you help me? I'm kind of in a tight spot here. Tysmmmmmmmmmmmmm o(❁´◡`❁)o!!

Answers

Answer:

Not sure, but I think ot is chemical bonds because chemical potential energy are stored energy in a chemical bond. Hope this helps, thank you !!

biology and physics are so closely related that sometimes the fields overlap. what experiment might both biologist and physicists do

Answers

Answer:

Study how the body's nerve cells react to an electrical shock.

Explanation:

Answer:

Study how the body's nerve cells react to an electrical shock.

Explanation:

a p ec

Thomson concluded that .......
A- electrons must be parts of the atoms of all elements
B- Electrons are not parts of the atoms of all elements
C-None from the previous​

Answers

Answer:

A. electrons must be parts of the atoms of all elements

Which processes are part of the fast carbon cycle?

Answers

Answer:

Option C

Explanation: Pass me the brainliest I only need 1

(HELP) how can you make the metal chair less cold when you sit on it?

Answers

Answer:

metal can hold heat keep it near fire

6. What are formed from the chemical reaction of the substances given
below? Write the balanced chemical reaction as well.
a) when calcium carbonate and hydrochloric acid react with eachother

Answers

CaCO3(s) + 2HCl(aq) → CaCl2(aq) + H2O(l) + CO2(g)

Which element is less electronegative than silicon (Si)?

Answers

Answer:

C

Explanation:

Carbon has an electronegativity of 2.55, followed by Tin at 1.96, Silicon at 1.90 and the least electronegative would be Lead at 1.87.

Answer:

Carbon

Explanation:

Carbon has an electronegativity of 2.55, followed by Tin at 1.96, Silicon at 1.90 and the least electronegative would be Lead at 1.87

describe nuclear change please​

Answers

Answer: Nuclear change is distinct from chemical change in that elements change. In the nuclear change the elements can change from one to another. (Nuclei can break apart to form smaller elements.)

Explanation:

Answer:

A nuclear change is a process by which nuclei of certain isotopes change spontaneously or are forced to change to two or more different isotopes.

Explanation:

The three main types of nuclear change in the matter are radioactive natural disintegration, nuclear fission, and nuclear fusion.

I like blowing up stuff too

What are the characteristics of electromagnetic waves?

Answers

Answer: Electromagnetic waves are transverse in nature as they propagate by varying the electric and magnetic fields such that the two fields are perpendicular to each other.

Accelerated charges are responsible to produce electromagnetic waves.

Explanation:

Question 8

Using Henry's Law: Sz/P1-S2/P2
To increase the solubility of a gas at constant temperature and 202kPa pressure from
0.85g/L to 5.1g/L, the pressure would have to be increased to:
A.505kPa
B.17.2kPa
C.606kPa
D.1212kPa

Answers

Answer:

D

Explanation:

plug the numbers

Amoeba have the following metabolism.
A. Autotrophic

Answers

[tex] \huge \purple{\tt{Answer:}} [/tex]

a. Autotrophic

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