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

Answers

Answer 1

Answer: juice powered machine

Explanation:

It would be very fascinating

Answer 2
Pain relievers which ones work the best and how strong what would be the best to take

Related Questions

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

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

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

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.

Answers

Answer:

Obstructions can happen. Outside forces can act upon it.

Explanation:

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

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."

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.

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

Fred spends most Sunday afternoons at rest on the sofa, watching pro football games and consuming large quantities of food. What effect (if any) does this practice have upon his inertia? Explain. ​

Answers

Fred will increase his mass if he makes a habit of this.

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

what is the end result of a chemical reaction(As it pertains to the properties of the substances made)

Answers

Answer:

Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the end results are called products.

Explanation:

the end results of a chemical reaction are 1. a new substance is formed
2. a new color
3. bubbles/ air is produced
4.change in shape

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.

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

What percentage of Earth is covered with water?

97
70
3
3.5
20
69

Answers

Answer:

70 percent

Explanation:

the answer is 70 percent

Answer:

70%

Explanation:

It's about 71% so to round it, it would be about 70%

This is my last assignment plz help

Answers

Answer:

d

Explanation:

Option d is the answer hope this helps

help pls, answer for brainlist

Answers

Answer:

C for the first question. C for the second ( i think ) I searched the third up it should be C again ( ikr CRAZY 3 c's ) B I think for the fourth one and D for the last question.

IF ANY OF THESE ARE WRONG I DEEPLY APOLOGIZE MY HEAD IS HURTING FROM THIS ALREADY

Properties of Light please help me

Answers

I can’t see the picture ?

Answer:

The primary properties of visible light are intensity, propagation-direction, frequency or wavelength spectrum and polarization, while its speed in a vacuum, 299 792 458 m/s, is one of the fundamental constants of nature.

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.

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

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

Answers

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.

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

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

Can someone please help?? I Already did number 1 and 2 . Please help!!

Answers

3a) w = mg = 60 x 10 = 600N
b) W = fd = 600 x 10 = 6000J
c) chemical to gravitational potential via the mechanical pathway

4a) W = fd = 200 x 0.5 = 100J
b) chemical to kinetic via mechanical pathway

5a) F = W/d = 40000/20 = 2000N
b) some is transferred into the thermal store, some is dissipated into the surrounding

Answer:

3a) w = mg = 60 x 10 = 600N

b) W = fd = 600 x 10 = 6000J

c) chemical to gravitational potential via the mechanical pathway

4a) W = fd = 200 x 0.5 = 100J

b) chemical to kinetic via mechanical pathway

5a) F = W/d = 40000/20 = 2000N

b) some is transferred into the thermal store, some are dissipated into the surrounding

Explanation:

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.

can anyone help me with this??

Answers

Answer:

its not clear enouph

Explanation:

I’m not sure what the question is but if it asking you to draw the molecular structure you’d want to find out what is in a crystal (which I’m pretty sure is NaCl) then you’d want to show how much Na and Cl is in the molecule.. hope this helps

What happens if two plates move away from each other?

Answers

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

describe the role of plate tectonics in earthquakes

Answers

Answer:

Tectonic plates are constantly moving slowly, sometimes friction between them to lock together and become unable to move.

Explanation:

Tectonic plates move at about the same speed as your fingernails grow. When the earthquake happens, one plate goes in a rough upward position while the other goes under the up facing plate. Earthquakes don’t only happen like that. They can happen also when they collide in with each-other, almost touching tips with each-other. Images will be provided to show both ways. Here:

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

#SPJ2

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.

Fireworks twinkle bright colors when ? react with oxygen?

Answers

Fireworks twinkle bright when gun powder and stars react with oxygen
Other Questions
A bag contains 24 colored marbles. There are 8 red, 3 green, 4 yellow, 5 blue and 4 orange. What is the probability of randomly selecting an green marble from the bag, NOT replacing it, and then selecting a yellow marble? complete the sentence using the verb ser mis amigos Please help I will give brainliest if you are right Hello all. I really need help immediately with this question. Here is the question! Explain how these terms work together IN TRANSLATION: mRNA, tRNA, codon, amino acid, proteinThank you sm for the help :) Find x correctly pleaseeee !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!! 49%The value of V is double the value of Q.Choose the correct formula.A- V= Q2B- V= Q + 2C- v = C- V = 20 What is one important reason why Venus cannot support life as we know it? Who are the major participants in the wars? Why are both in South Africa what is rainwater harvesting 1. Jada earns $7 per hour mowing her neighbors' lawns.Write anequation. Patro e empregado, para se comunicarem, usam a lngua portuguesa. Compare o modo como cada umdeles fala:" Pois no, Seu Washington. Que posso fazer pelo senhor? Houve algum problema?"" Aquele puro-sangue qui o sinh tinha!"IDENTIFIQUE, nos trechos, uma palavra que foi falada pelas duas personagens de modos diferentes.Qual a diferena entre as formas de falar e escrever essa palavra? Qual forma escrita de modo formale qual escrita de modo informal? * 3+{2(8-4+6)}-5-{9+4-[3(1-5)]} Un embalse estaba lleno a finales del mes de mayo. En el mes de junio se consumieron 3/10 de sus reservas y a finales de julio solo quedaba la mitad. Qu fraccin del embalse se consumi durante el mes de julio? x / 8 + 9 = 43 x = ?Solve for x Round to the nearest 100th if needed. NAME THREE COUNTRIES THAT THE LINE OF THIS ELEVATION PROFILE CROSSES !!!!!!!! Winn Dixie was making the preacher poke his head out of the shell? is the luangauge literal or figurative Eric spent $21.82, including sales tax, on 2 jerseys and 3 pairs of socks. The jerseys cost $6.75 each and the total sales tax was $1.03. Fill in the table with the correct prices. The democracy we practice in the United States is considered a direct democracy. True or False. consideras q estas actividades pueden poner en riesgo la salud o la integridad fisica demalgunas personas Cuales fueron las causas internas que determinaron la cada aa del imperio romano y cual ees. La ms. Importante