A fireman feels the heat from a fire before he even gets up to it. This is caused by ___.

a conduction
b convection
c radiation

Answers

Answer 1

Answer:

C. Radiation

Explanation:

Answer 2
C: radiation.

Radiation is waves or particles going through space, so you would feel heat

Related Questions

HELP
Are barrier islands originally created through erosion or deposition?

Answers

Answer:

Barrier Island Formation from Beach Erosion and Sand Deposition

For Example:

Jekyll Island is a barrier island formation, created by the forces of wind and current, and tide.

Barrier islands are found all over the world. In the United States, barrier islands occur on both coasts.

Im pretty sure, Erosion

Which of the following would not be restricted (limited) by low levels of ATP?

Answers

You did not provide the possible answers.

Match the following items with the correct descriptions.

1. releases hydrogen ions
base
2. accepts hydrogen ions
eight
3. poor conductor of electricity
metal
4. shiny and lustrous
nonmetal
5. maximum number of electrons in first shell
acid
6. maximum number of electrons in second shell
two

Answers

Answer:

1.releases hydrogen ion acid

2.accepts hydrogen ion base

3. poor conductor of electricity non metal

4. shiny and lustrous metal

5. maximum number of electrons in first shell

two

6. maximum number of electrons in second shell

eight

CH4 + __O2 → CO2 + ___H2O

balance this equation

Answers

Explanation:

need points bye have good day

Answer:

CH4+2O2→CO2+2H2O

Explanation:

Start with the least common atoms and leave things like H and O to the end.

You need to have the same number of methane reactants as carbon dioxide products because there is one carbon in each. I’ll set them both to 1 for now. O see two things with oxygen on the product side so we will have to juggle numbers a bit to figure out those. There is only H in the water so we’ll go there next. One CH4 gives 2 water molecules so we have that done now. At last we can tackle the O atoms. In two waters there are 2 and in the CO2 there are two more so a total of 4 O atoms in the products so we need two O2 molecules in the reactant side.

Hope this is useful.

describe what is happening to rock climbers’ body systems and cells at the small scale.

Answers

Answer:

It is being pressured!

Explanation:

The pressure point changes so people aren't used to that certain pressure

As a rock climber climbs higher, the systems and cells experience a decrease in pressure.

Pressure decreases with height. Hence, the higher you go, the lesser the pressure becomes and this may have obvious implications on the cells and systems of a rock climber.

As air pressure decreases at higher altitude, a rock climber may find it difficult to breathe because of the sudden decrease in air pressure hence the respiratory system is affected.

Prolonged exposure to high altitudes may lead to a decrease in the amount of oxygen in blood causing the heart to pump harder.

Learn more: https://brainly.com/question/14191541

Please help will give brainliest
Which of the following statements is TRUE regarding air resistance?

A fast-moving object experiences more air resistance than a slow-moving object

A slow-moving object experiences more air resistance than a fast-moving object

Answers

A slow moving object experiences more air resistance then a fast moving object
a slow moving object experiences more air resistance than a fast moving object , it’s the second one

Help its for science ill give brainilest.

Answers

directly proportional

Answer:

This equation reveals that the kinetic energy of an object is directly proportional to the square of its speed. That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four.

Explanation:

Which set of coefficients would balance the following equation?

Mg + AlCl3 → Al + MgCl2
A. 2Mg + AlCl3 → Al + 2MgCl2
B. 3Mg + 2AlCl3 → 2Al + 3MgCl2
C. Mg + 2AlCl3 → 2Al + MgCl2
D. 3Mg + 4AlCl3 → 4Al + 3MgCl2

Answers

Answer : B 3Mg + 2AlCl3 - 2Al + 3MgCl2

Explanation:

Reactants side Products side
Mg - 3 Mg - 3
Al - 2. Al - 2
Cl - 6 Cl - 6

The chemical equation  which is balanced according to law of conservation of mass  is 3 Mg + 2 AlCl₃ → 2 Al + 3 MgCl₂.

What is chemical equation?

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

Learn more about chemical equation,here:

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How does this evidence help explain why the skin cancer rate is higher in Australia than in Brazil, even though the two countries get the same amount of sunlight?

Answers

Answer:

The Ozone layer

Explanation:

Ozone in the atmosphere can absorb ultraviolet light, which stops the light from reaching Earth’s surface, so people absorb less of it. Australia has less ozone than other places, like Brazil, and this is why Australia gets more ultraviolet light.

HELP plz
Are beaches made from erosion or deposition?

Answers

Answer:

Desposition

Explanation:

Answer:

Deposition

Explanation:

Beaches are wave-deposited accumulations of sediment.

What patterns in the rock layer fossils helped you identify an extinction?

Answers

Answer:

Hope this helps!! :D

Explanation:

Often, the rock layers bookending the mass extinction are noticeably different in their compositions. These changes in the rocks show the effects of environmental disturbances that triggered the mass extinction and sometimes hint at the catastrophic cause of the extinction.

You can often tell by disturbances in the fossils bones. Maybe like dust or particles symbolize harm or mass extinction in a prehistoric animal or maybe even new fossils like some animals that went extinct recently like 200 years.

I KEEP ASKING FOR HELP IVE DONE MOST OF THE QUESTIONS MYSELF BUT NEED HELP IN SOME IF YOU ANSWER I WILL GIVE BRAINLIEST
What happens to the motion of an object if forces acting on the object are equal and balanced?

A. The object begins to move

B. The object begins to slow down

C. The motion of the object does not change

Answers

Answer:

When the forces acting on an object have equal strength and act in opposite directions, they are balanced. These forces cancel out one another, and the motion of the object they are acting on remains unchanged. The object may change its speed (speed up or slow down), or it may change its direction.

So I think its C

You see this is because if the forces were different the object would either speed up or slow down but in this case the forces are equal so the motion of the object does not change.

Hope This Helps :)

The wastewater in your home goes to one of three places. It can run into a home septic system, it can go to a centralized sewage treatment plant, or it might be directly discharged into a body of water. Where does your water go after it goes down the drain?

Answers

Answer:

Sewage Treatment

Explanation:

I am sorry if I got this wrong but if I did please correct me!

In an exothermic reaction, chemical energy is converted to _____.

1.thermal
2. mechanical

Answers

Thermal
Because exothermic is having to do with energy

The chemical reactions are generally of many types. The exothermic and endothermic reactions are important among them. In an exothermic reaction the chemical energy is converted to thermal energy. The correct option is 1.

What is exothermic reaction?

The chemical reactions which proceed with the evolution of heat energy are defined as the exothermic reactions. The chemical reactions which proceed with the absorption of heat energy are called endothermic reactions.

In an exothermic reaction, system loses heat to surroundings. Since heat is given out in exothermic reactions, the enthalpy of the products will be less than that of the reactants.

In exothermic reaction, q will be negative and the enthalpy change will be also negative. In this reaction  chemical bonds are broken and new bonds are formed. The chemical energy is converted to kinetic energy which is released as heat.

Thus exothermic reaction releases thermal energy.

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Which graph above shows an object’s acceleration? Why did you choose that graph(explain why)

Answers

Velocity vs. Time shows an objects acceleration because... in Position vs. Time the line does not go through the origin and it’s very uneven, But Velocitu vs. time goes through the origin and has straight lines.

Answer:

B.

Explanation:

Because the lines are vertical no so wormy like.

Is this a scientific model? Use complete sentences to explain why or why not



Public Domain

Answers

Answer:

it is

Explanation:

PLS HELP THIS IS URGENT LIKE AN ASPA QUESTION THAT NEEDS AND ANSWER PLS HELP
Describe the percentages of electromagnetic energy that comes from the sun?

Answers

i’m pretty sure it’s 80% i had the same question when i did an exam and i got it right so yeah
40% at wave lengths of infrared (IR) or longer. 50% at visible wave lengths and 10% at wave lengths of ultra violet (UV) or shorter.
I hope this is what you were asking.

pls help really easy just search the questions f u need to

Answers

Answer:i cant seee

Explanation:

none

1. because it’s features are very very like the planet mars so is useful for research on the planet. 2. it protects scientists from the extreme temperatures. 3.i’m not sure but i guess they would research how suitable mars is for humans to live on?

A characteristic property is one that remains the same regardless of the amount of matter that is present.

Which of the following is a characteristic property of matter?

Group of answer choices

Density

Mass

Volume

Weight

Answers

the answer is weight
The answer is weight

The moon's observed motion across the sky is PRIMARILY due to the
A)
rotation of the moon.
B)
rotation of the earth.
C)
orbit of the moon around the earth.
D)
orbit of the earth around the moon.

Answers

Answer:

I think that rotation of the moon is the correct one

Explanation:

C) orbit of the moon around the Earth

i will give u 50 points if u help me

Answers

14) gas to liquid to solid
15)chlorine displaces bromine from potassium bromide
16) non-metals
6)vertical
7)similar properties
8)there are patterns
10)decrease
11)very reactive
12) hydrogen
18)lower density than air
19)better insulator
20)metalloids

Answer:

a b a

Explanation:

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Study the image of Earth’s layers. Cross section of layers of the Earth. Inner core equals 1,216 kilometers; Outer core equals 2,270 kilometers. Mantle equals 2,885 kilometers, and consists of lower and upper mantle. Upper mantle is made up by: Asthenosphere at 660 kilometers, Lithosphere at 100 kilometers, Oceanic crust at 5 kilometers, Continental crust at 30 to 40 kilometers. Which statement correctly compares the thicknesses of Earth’s layers? Earth’s mantle is thinner than its oceanic crust. Earth’s outer core is thicker than its mantle. Earth’s continental crust is thicker than its lithosphere. Earth’s lithosphere is thinner than its asthenosphereStudy the image of Earth’s layers.

Answers

I believe it is the last one.

Earths lithosphere is thinner than its asthenosphere.

Answer:

the person on top is right.

Explanation:

How is salinity affected?
(a) evaporation increases
(c) freezing increases
(d) melting increases
(e) precipitation increases

Where does the energy that causes evaporation come from?
What role does gravity play in the water cycle?
Describe the flow of one molecule of water through the water cycle, beginning in the ocean.

Answers

Answer:

A and E.

Explanation:

 When water evaporates, it leaves the salt. When rain falls, the salt is diluted. The sun causes the  evaporation. The also the sunlight is the energy source, the greatest force propelling the water cycle is gravity. Gravity is the force of attraction between two objects, and Earth’s gravity pulls matter downward, toward its center. It pulls precipitation down from clouds and pulls water downhill. Gravity also moves air and ocean water. Also Water travels in a continuous path through Earth called the water cycle. The journey starts in the Earth's oceans. As the Sun heats the ocean, the water evaporates into a gas. The gas meets cooler air, and the gas changes into droplets of tiny water molecules. This process is called condensation. Little droplets of water fall back down to Earth again as precipitation. The precipitation fills up the rivers and various other things and the cycle begins all over again. Now with this being said, there is much more than just this!

     Good luck!

The answer is A hope this helped :)

need help on queston 4 and 5

Answers

4)acidic solutions
5) basic
a. acidic solution
b. acidic

A kite is an example of what?

(A) A system


(B)A process


(C)A pattern


(D)A change

Answers

Answer: I think it is the process

Explanation:

PLs HELP ME LIKE ASAP
How do the light rays emitted by a candle travel?

Answers

Answer:

Explanation:

The light rays coming from the unlit candle and the reflected light rays of the lit candle are superposed on top of one another. ... For very transparent substances like glass, only about 5 percent of the light that hits it is reflected. The remaining 95 percent is transmitted—it passes right on through.

Answer:

The light rays coming from the unlit candle and the reflected light rays of the lit candle are superposed on top of one another. ... For very transparent substances like glass, only about 5 percent of the light that hits it is reflected. The remaining 95 percent is transmitted—it passes right on through.

Explanation:

5. Fill in the chart to identify three types of chemical changes.

Answers

Answer:

1.reaction with energy 2. one substance breaks down 3. reaction to acid and base

What type of erosion cause a canyon form?
water
wind
ice

Answers

Answer:Water

Explanation: none

The answer would be ice

Answer ian rlly kno ...........

Answers

A ..............................
The slope would be -1/2
0-2
2+2 (cause one was negative add instead of subtract)
You would get -2/4 simply that to
-1/2

What patterns in the rock layer fossils helped you identify an extinction?

Answers

Often, the rock layers bookending the mass extinction are noticeably different in their compositions. These changes in the rocks show the effects of environmental disturbances that triggered the mass extinction and sometimes hint at the catastrophic cause of the extinction
What the person said bro
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