Fireworks twinkle bright colors when ? react with oxygen?

Answers

Answer 1
Fireworks twinkle bright when gun powder and stars react with oxygen

Related Questions

Why do you sometimes get shocked by static electricity? Explain how it happens and give an example.

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Answer:

That tiny shock you feel is a result of the quick movement of these electrons. You can think of a shock as a river of millions of electrons flying through the air. ... Static electricity happens more often during the colder seasons because the air is drier, and it's easier to build up electrons on the skin's surface.

Explanation:

Don't copy excatly but here it is.

Good Luck! And Happy Weekend!

Answers

Question :

Circle the scenario that shows balanced forces and will result in no movement of the gold bar.

Answer :1st one is the scenario that shows balanced forces and will result in no movement of the gold bar. (circled in attachment)

Explanation :

In the first scenario there are equal forces of 5N acting on both sides of the gold bar, but this is not the case for the second and third scenarios. Equal forces are acting on both sides of the bar in the first scenario, hence showing balanced forces and resulting in no movement of the gold bar.

Because of friction...
A. energy is always not conserved
B. not all potential energy is converted into kinetic energy
C. all of an object's kinetic energy turns into potential energy
D. all of an object's potential energy turns into kinetic energy

Answers

Answer:

Because of friction , B. not all potential energy is converted into kinetic energy.

l hope it helps

The answer is B. because the rest of the choices don’t make sense. Also, friction is the force of resisting the relative motion of things, so B. makes the most since. Hope this helps!

The kinetic energies of particles in a sample of matter are increasing. This sample is most likely

Answers

Answer:

The sample is most likely gaining thermal energy

Explanation:

If the kinetic energies of particles in a sample of matter are increasing, the sample is a liquid that is warming.

All particles have energy, and the energy varies depending on the temperature of the sample of matter. Solid particles have the least amount of energy, and gas particles have the greatest amount of energy.

The temperature of a substance is a measure of the average kinetic energy of the particles.

If the kinetic energies of particles in a sample of matter are increasing, the sample is a liquid that is warming.

Find out more at: https://brainly.com/question/1902353

What is some relaxing no distraction studying music. None of the music I use helps. :|

Answers

I listen to bring the madness it relaxes me a lot and also knock knock knock FBI open up

This is my last assignment plz help

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Answer:

d

Explanation:

Option d is the answer hope this helps

What happens if two plates move away from each other?

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Answer:

They will sometimes crash into other plates in the process and will rub while they are moving creating earthquakes

Explanation:

It’s a divergent boundary, it can cause earthquakes

Which point or points on the image below show constructive interference of light? *
C
A
D
B
E

Answers

B and D hope im right :))
I believe that it’s B and D

Humans use surface freshwater for
there's more than one answer

agriculture
driving
factories
swimming

Answers

Agriculture is the answer (:
Agriculture is the answer definitely

a lawn mower is pushed with a force of 50n. if the angle between the handle of the mower and the ground is 30°. why doesn't the lawn mower move forward instead of downward ​

Answers

Answer:

IT doesnt push down because the lawnmower has wheels and the ground is hard

Explanation:

Branliest

what would be a very very very very very GOOD science project the the COUNTY SCIENCE FAIR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: juice powered machine

Explanation:

It would be very fascinating

Pain relievers which ones work the best and how strong what would be the best to take

PLEASE HELP ME
If we did use zero-friction machines for these purposes, how would our everyday lives change?

Answers

Our lives would big be possible because we would not be able to drive cars all knots would untie

How does gravity affect an object?

Answers

Answer:

it is a downward force

Explanation:

e.g: keeping humans on earth

Answer:

by gravitational force

Explanation:

The size of the gravitational force is proportional to the masses of the objects and weakens as the distance between them increases. Both objects exert an equal attractive force on each other: a falling object is attracting the Earth with the same size force as the Earth is attracting it.

which gas is at room temperature?
A (aluminum
B ( nitrogen
C ( potassium
D ( sodium

Answers

Answer:

B ( nitrogen

Explanation:

it is at room temperature

The correct answer is B. Nitrogen

An object, once set in motion, will tend to move in a straight line and at a constant speed. But the law (The Law is Newton's First Law.) isn’t always true. Explain why.

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Answer:

Obstructions can happen. Outside forces can act upon it.

Explanation:

What net force acting on a 14 KG wagon produces an acceleration of 1.5 MS^2?

Answers

Answer:

The wagon exerts a force of 21 Newtons

Explanation:

Force is equal to mass times acceleration, a Newton being 1 kg×m/².  As we're given both the mass and the acceleration, all we need to do is multiply them to find the force applied:

14 kg × 1.5m/s²

= 14 × 1.5 kg × m/s²

= 21 N

The part of Earth that is facing the sun is going through the season of summer. Describe where Earth will be positioned the following summer.

Earth will be above the sun the following summer.

Earth will be in the same location the following summer.

Earth will be on the opposite side of the sun the following summer.


Earth will be underneath the sun the following summer.

Answers

Answer:

Dont worry about that first guy. I dont care about points just wanna help! Anyway the answer would be B

Explanation:The eart runs on an axis around the sun and would follow that axis for the following summer

As the Earth orbits the Sun, it gets closer to the Sun at times. This is what causes summer.
A. True
B.false?

Answers

False .
The earth rotates while orbiting around the sun causing summer.

Answer:

true heres why

Explanation: because you feed the butterfly falafel again with a sock from a froot loops box

and you made something come out of your but

4. Today, farmers breed chickens to have extra-large muscles and to lay of eggs. A wild fowl-a chicken that lives in the woods--lays between 20 and 30 eggs per year. In contrast, a chicken bred by famers can lays many as 300 eggs per year. This idea can be best explained by-

A. Evolution
A. Evolution

B. natural selection
B. natural selection

C. Selective Breeding
C. Selective Breeding

D. Survival of the fittest
D. Survival of the fittest

Answers

Answer:

Selective Breeding

Explanation: It's selective breeding because the chicken being breeded by the farmer can produce wayyyyy more eggs.

C. selective Breeding

It appears as though the moon disappears and the sun comes out in the daytime. Based on what you know, explain why this is happening in the daytime.

Earth is rotating toward the sun.


Earth is rotating away from the sun.

The moon is rotating away from the sun.

The moon is rotating towards the sun.

Answers

Answer:

The Earth is toward the sun

Explanation:

DONT LISTEN TO ME I AM A CHILD AND I JUST GUESSED

The Earth is rotating toward the sun and away from the moon. Because of this, part of the Earth’s hemisphere sees daylight while the other part is not able to.

To what physical quantity do ampere-hours correspond, and what relationship do ampere-hours have to energy content?

Answers

Answer:

"The ampere-hour corresponds to the unit of electric charge. The ampere-hour is the current transferring one charge in one hour. The ampere hour can be used to express the energy require to move a current of 1A in a hour. The quantity is related to electric charge and the energy in a battery."

can somebody help me out with this

Answers

Answer:

Lifeless because of the lack of rain

A car moves north at 12 miles per hour.

Which option describes if the given value is speed or velocity?


speed, because there is a mention of time

velocity, because there is a mention of time

speed, because there is a specific direction

velocity, because there is a specific direction

Answers

Deffo Velocity!! Velocity is a vector meaning has a direction and the direction is NORTH
Velocity, because there is a specific direction. Velocity and acceleration are both vector quantities which means they require direction. Speed on the other hand, only requires distance and time.

Describe why the shape of the moon appears to change over time.

A)The moon is changing shape as it orbits around Earth and the sun.


B)The moon creates more light as it changes its position around Earth.


C)The sun orbits Earth, giving off different amounts of light to the moon.

D)The sun is lighting up different parts of the moon during the moon's orbit around Earth.

Answers

Answer:

think its A hope im right

I think its C but like i said i THINK

HELPPP WILL GIVE BRAINLIEST!!!

Answers

Answer: C

Explanation: As the universe stretches it expands more and more the distance between each other. Hope this helps.

Answer:

i think d is the answer

Explanation:

because if the balloons are together than how are you going to tell witch direction they go in

Which of the answer choices is a true statement? Select all that apply. Nonmetals usually exist as molecules, combining with atoms of themselves. Nonmetals can exist on their own as individual atoms. Metallic elements usually exist as molecules, combining with atoms of themselves. Metallic elements can exist on their own as individual atoms.

Answers

Nonmetals usually exist as molecules, combining with atoms of themselves and Metallic elements can exist on their own as individual atoms. therefore the correct options are options A and option D

What is a molecule?

The smallest component of a material that still has its content and characteristics is called a molecule. It is constructed of two or more atoms connected by chemical bonds. Moles are the foundation of chemistry. Molecules are designated by their elemental symbol and a subscript denoting their atom count.

Atoms are the fundamental unit of an element. They consist of a nucleus and surrounding electrons. When an atom has an incomplete electron shell, it is said to have valence electrons.

Thus,Metallic elements can exist alone as individual atoms, while nonmetals typically exist as molecules that combine with other atoms of the same type. Therefore, options A and D are the best choices.

Learn more about molecules from here

brainly.com/question/28060128

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What happens when a light beam passes from air into water? Select all that apply. *

the light wave slows down in water
refracted light bends in the water
some of the light is reflected off of the surface
total internal reflection
the light wave speeds up in water

Answers

the secont line is correct

When a light ray passes from air into water a similar thing occurs: the light ray is bent as it strikes the surface of the water. This 'bending of a ray of light' when it passes from one substance into another substance is called refraction.
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