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Related Questions
Which scenario bellow BEST illustrates the law of inertia ?
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Can someone please explain how to solve it ?
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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
Carlos is using the following images of a coal plant and a barbecue for his science investigation about chemical energy. Based on his observations, which statement most likely describes the conclusion of his investigation?
a coal plant
a barbecue
The images show examples of chemical energy being converted into heat and electrical energy.
The images show examples of mechanical energy being converted to heat energy.
The power plant and the barbecue convert electrical energy into chemical energy.
The power plant and the barbecue store heat energy and convert it to chemical and electrical energy.
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I believe it is the first one, please correct me if I'm wrong.
Answer:
A
Explanation:
PLEASE HELP!!! I WILL GIVE BRAINLIEST TO 1ST PERSON!!!
A balloon filled with gas has a mass of 5 g. If the balloon is heated the mass of the balloon will:
--
A.) remain 5g
B.) decrease
C.) increase
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Answer:
I believe the answer would be A, remain 5g because heating the balloon would increase the speed of the gas molecules, but not necessarily change the amount
Answer:
decrease
Explanation:
The ballon will most likely pop causing it to decrease in mass.
What is most likely to occur during a chemical reaction?
a Molecules of the original substance are lost. b New atoms are created. c The original substance maintains its properties. d Mass is conserved.
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During a chemical reaction, the most likely occurring is mass conservation. According to law of conservation of mass, total mass in a reaction is conserved.
What is law of conservation of mass?According to the law of conservation of mass, the total mass in a chemical reaction or in a physical change is conserved. Simply, mass is neither created nor destroyed.
When a chemical reaction takes place, no new atoms are created and the properties of the reactant species cannot be maintained after reaction.
Molecules of any reactant is not lost during a reaction. The total mass in the reactant side of a balanced reaction will be equal to the total mass in product side.
Therefore, the mass conservation is likely to occur during a chemical reaction. Thus, option d is correct.
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If three different samples of a liquid have different compositions, then the liquid can be classified as *
A.) an element
B.) a mixture
C.) a substance
D.) a compound
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According to the forces of attraction, if three different samples of a liquid have different compositions, then the liquid can be classified as a mixture.
What are forces of attraction?Forces of attraction is a force by which atoms in a molecule combine. it is basically an attractive force in nature. It can act between an ion and an atom as well.It varies for different states of matter that is solids, liquids and gases.
The forces of attraction are maximum in solids as the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.
The physical properties such as melting point, boiling point, density are all dependent on forces of attraction which exists in the substances.
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Help pleaseeeeeeeeeeeeee!!?
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Answer:
There are 146 neutrons in Uranium-238
There are 90 electrons in Thorium-234
What's a compound?
What's an element?
whatss a mixture?
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a element is a pure substance when cannot be broken down. it consists of atoms, protons, neutrons, and electrons.
a mixture is a a substance made by mixing other substance together.
Answer:
Compound: any substance composed of identical molecules consisting of atoms of two or more chemical elements.
Element: is a pure substance which cannot be broken down by chemical means.
Mixture: is a substance which consist of two or more elements or compounds not chemically combined together.
Which of these is an example of solar energy?
A) heating a pot of water on a stove
B) heating water in the sun to make tea
C) cooling a house with an electric fan
D) cooling a house by pulling down shades
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Does listening to music when you study increase your test scores? What is the independent variable?
listening to music or not
studying or not
test scores
No answer text provided
I NEED THIS ASAP
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Answer:
It can you just have to find a song that get's stuck in your head and try replacing the studing answer with the song because then the answer will get stuck in your head.
Explanation:
Answer: It really depends on not only what you are listening to but how you tend to react to different sounds. I would say if you get side tracked easy, don't play music that has lyrics or animation and if you get headaches or annoyed easy play music that's softer. It really depends of how you are as a person
Explanation:
How small are the microorganisms that live on and in the human body? Answer it in at least 1 paragraph
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Answer: The human body contains trillions of microorganisms — dwarfing human cells by 10 to 1. Due to their little size, nonetheless, microorganisms make up just around 1 to 3 percent of the weight's (in a 200-pound grown-up, that is 2 to 6 pounds of microscopic organisms), yet assume a crucial function in human wellbeing. In 2016, a survey of over forty years of examination into the human microbiome found that there is zero logical proof to back this frequently refered to tidbit up. Rather, the proportion appears to be about 1.3-to-1, with the normal human playing host to around 100 trillion microorganisms, plus or minus. Rather, the proportion seems to be about 1.3-to-1, with the normal human playing host to around 100 trillion organisms, plus or minus.
Explanation:
You can mix this up and paraphrase this into ur own words.
The microorganisms that are present and live in the human body are 1 to 10 micrometers.
What are microorganisms?
Microorganisms are tiny living organisms that can be only seen by microscopes. These organisms are found everywhere on earth. They are free-living and parasitic. There are good and bad microorganisms.
Some are useful to the earth and the living creature, but some are harmful to the health of other living creatures. They are responsible for many diseases in plants, animals, and other organisms.
There are many bacteria present inside the body. They are present in the digestive system, and our mouth. They help in the digestion and breakdown of many food materials and macromolecules.
Thus, the size of microorganisms that are present and live in the human body is 1 to 10 micrometers.
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help please, thank you !!
Answers
Answer:
5
Explanation:
What can you use to get rid of paint A. thinner B. water C. Soda. D. cough medicine
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Answer:
You can remove paint with everything but cough medicine.
Explanation:
PLEASE HELP
I'll give brainliest if you can solve and explain how you got it.
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Answer:
8m/s
Explanation:
First you add the force of newtons which is 320 N of force then divide it by the weight which is 40kg. 320/40=8
Laura and Jess observed two points, P and Q, on a number line. A number line is shown from negative 2 to positive 2 with increments of 2 over 8. A point P is shown at the fifth tick mark to the left of 0, and a point Q is shown at the fifth tick mark to the right of 0. Jess said that the absolute values of the numbers represented by the two points are different. Laura said that the absolute values of the numbers represented by the two points are the same. Which of the following explains who is correct?
Jess, because the points are of different signs
Jess, because the points are at different locations
Laura, because the distance between the two points is 10 over 8 units
Laura, because each of the two points is 10 over 8 units from 0
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Answer:
P is 5 ticks to the left of 0, so it would be -5/8
Q is 5 ticks to the right of 0, so it would be at 5/8
an absolute value turns a negative number into a positive number
so absolute value of P located at -5/8 = 5/8
this is the location of point Q
Jimmy said that the absolute values of the numbers represented by the two points are the same.
so Jimmy is correct
Explanation:
HELP ITS DUE TOMORROW
Answers
Would’ve been easier to find this if u put the question on title
Answer:
1. 2 H2O + O2
2. NaBr + CaF2 = NaF + CaBr2
3.Ag + O2 = Ag2O
Explanation:
I hope this helps~~~
Why is the research of alternative energy resources important?
Fossil fuels are better for the environment over time.
Fossil fuels are a nonrenewable resource that won't last forever.
Alternative sources of energy produce too much pollution.
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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:
How many atoms are in C₆H₁₂O₆
Answers
Answer:
There are 24 atoms in one molecule of C6 H12 06. This chemical compound has 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen.
Answer:
1 molecule of glucose contains 6 atoms of C, 12 atoms of H, and 6 atoms of O • 1 mole of glucose contains 6 moles of C atoms, 12 moles of H atoms, and 6 moles of O atoms.
Explanation:
You throw a ball so that it hits the floor a few feet in front of you. Will it bounce back to you? Explain how the bounce is similar to the way light behaves?
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Answer: No. The ball wil not bouce back to you. A ball is similar to how light behaves because when you bounce a ball, it will go in a straight line and when it hits something, it will bouse again and go somewhere else. This is also how light behaves.
Explanation:
The ball will not bounce back to you. It will bounce again but go somewhere else similar to the way light behaves.
What is the scattering of light?When a beam of light travels through a medium, it hits the particles in them. Some of the light rays get absorbed while a few rays get scattered in various directions. The intensity of the scattered light depends on the size of the particle and its wavelength.
When light reaches matter, it can be refracted, reflected, absorbed, or scattered. Light travels in the same direction after hitting the surface is reflected light since the surface is smooth but never follows the same path.
Scattering happens when light bounces off an object or particle in a variety of directions. A ball shows behavior as light. When you bounce a ball, it follows a straight path and hits something, it will bounce again but in a different direction. That is how the light behaves.
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Henry is in the community investigating sources of chemical energy for his science experiment. Select the best examples of chemical energy Henry can use.
A gas station and people playing hopscotch
A squirrel eating acorns and a fire burning
Someone reading a book and eating a sandwich
Someone sliding down the slide and someone drinking water
Answers
Answer:
B
Explanation:
A space shuttle is covered with two layers of carbon. The two layers are the same size and have the same number of molecules. When the space shuttle is sitting on the ground, the layers do not touch, as shown in the diagram above. When the space shuttle takes off, the layers move so that they are touching. Use the information in the diagram to answer the question.
How does the temperature of the outer layer compare with the temperature of the inner layer before the layers touch? What will happen after the layers have been touching for a while?
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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:
When the material is separated, the transfer is carried out by radiation, the internal temperature rises slowly. When the material is bonded, the heat transfer is carried out by conduction, the interior temperature rises rapidly.
Thermal conduction processes are mechanical by which thermal energy (temperature) is transported, they ask to be of three types:
Conduction. When there is no displacement of matter, the energy is transported by the agitation of the molecules. Convection. When matter is transported, very important for liquids and gases. Radiation. When there is no physical contact and the energy is transferred by the radiation of electromagnetic waves.
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:
When the material is separated, the transfer is carried out by radiation, the internal temperature rises slowly. When the material is bonded, the heat transfer is carried out by conduction, the interior temperature rises rapidly.
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this is the portion of the electromagnetic spectrum that has a frequency just below the visible spectrum. (For number 8, the one that is highlighted.)
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Answer:
these are very difficult dear
Explanation:
Describe how the composition of the upper mantle is different from the lower mantle? The upper mantle is made of solid rocks and lower mantle is made of melted rocks and minerals The upper mantle is made of melted rocks and minerals and lower mantle is made of solid rocks The upper mantle is made of lava and the lower mantle is made of magma
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Answer: The upper and lower mantle have very few differences but the lower mantle is more solid than the upper mantle.
Answer:
The upper and lower mantle differ from each other in location, temperature and pressure.
The upper mantle is made of melted rocks and minerals and lower mantle is made of solid rocks
Give an example, other than making ice-cream or a slushy, where the effect of salt on the phase change of water is useful in everyday life.
ASAP PLS AND THANK YOU
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Answer:
Putting salt on the ground to melt ice or snow I mean.
Explanation:
what is the coeiffecent in the following 6H2O
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the co-efficient in the equation is the 6.
explanation:
there is never a co-efficient in the middle or end. It also represents how much molecules it is in.
what is the volume of a marble that has a mass of 3.g and a Density of 2.7 g/ml ?
make sure to round to the nearest tenth
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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
What is the role of an electron in an atom
Answers
Answer:
Negative Charged Particle
Explanation:
Electrons are really small compared to everything else in the atom
Electrons give negative charge to the atom, and it balances out the positive charge given by the protons. That's the role of an electron!
Hope this helps!
The phase of matter can be changed by:
a) increasing temperature
b) decreasing mass
c) increasing volume
d) all of the above
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Answer: A
Explanation: Mass and volume is the amount, amount doesn’t make the phase of a matter change.
PLEASE ANSWER!! All of the ecosystems on Earth make up the _________. A. biosphere B. atmosphere C. lithosphere D. Thermosphere
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Answer:
biosphere
Explanation:
simple simple
Answer:
A or C but I think it's A
Explanation:
the ____ temperature of an object the lower its thermal energy
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Thermal energy is the average sum of all kinetic energy of all the molecules of gases. The lower the temperature of an object the lower its thermal energy.
What is Thermal energy?
Thermal energy is a energy which is possess by a moving object. It is directly proportional to kinetic energy of the molecules. It is very difficult to find the correct value of kinetic energy so we find average kinetic energy. Which is very easy to calculate as compared to calculating kinetic energy.
Mathematically,
K.E=2/3KT
Where,
K= Boltzmann constant
T is the temperature
Average kinetic energy is directly proportional to temperature. It is not dependent on the type of gases or mass of gases. The lower the temperature of an object the lower its thermal energy.
Therefore, the lower the temperature of an object the lower its thermal energy.
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