How is the kinetic energy of the particles that make up a substance different
after it changes state?
O A. The kinetic energy is greater after a substance changes from a
plasma to a gas.
O B. The kinetic energy is greater after a substance changes from a
liquid to a solid.
O C. The kinetic energy is less after a substance changes from a liquid
to a gas.
O D. The kinetic energy is less after a substance changes from a gas to
a liquid.
Answer:
a
Explanation:
i think
PLZ ANSWER FAST WILL GIVE BRAINILEST TO FIRST PERSON WHO ANSWERS:P
Read this excerpt from Through the Looking-Glass by Lewis Carroll.
“That would never do, I'm sure,” said Alice: “the governess would never think of excusing me lessons for that. If she couldn't remember my name, she'd call me ‘Miss!’ as the servants do.”
“Well, if she said ‘Miss,’ and didn't say anything more,” the Gnat remarked, “of course you'd miss your lessons. That's a joke. I wish YOU had made it.”
“Why do you wish I had made it?” Alice asked. “It's a very bad one.”
But the Gnat only sighed deeply, while two large tears came rolling down its cheeks.
“You shouldn't make jokes,” Alice said, “if it makes you so unhappy.”
Then came another of those melancholy little sighs, and this time the poor Gnat really seemed to have sighed itself away, for, when Alice looked up, there was nothing whatever to be seen on the twig, and, as she was getting quite chilly with sitting still so long, she got up and walked on.
Question:
How does Lewis Carroll’s use of opposites appear in this excerpt?
Answers:
1#. Alice says that her governess would never excuse her from her lessons, even if she 2#. did not have a name.
3#. The gnat jokes that Alice would have to miss her lessons if the governess called her “Miss.”
4#. The gnat makes jokes, but they seem to cause him unhappiness rather than joy.
5#. The gnat disappears after he lets out one last sigh and Alice looks up at the tree.
Answer:
4
Explanation:
Answer:
D
Explanation:
An ice cube melting into water is an example of: options:
A. physical change
B. nuclear change
C. chemical change
QUESTION 2
Non-metals are found where on the periodic table?
A. Everywhere
B. Center
C. Lower left side
D. Upper right side
A. physical
D. Upper right
Answer:
1.) A, a physical change
2.) D, Upper right side
Explanation:
1.) Changing states does not atomically change the chemical build up of any object. Water is still water whether as liquid H2O, ice, or water vapor. Since it is only changing how an object looks and not the chemically make up, melting and freezing constitutes as physical changes
2.) Non-metals are elements that do no share the traits and characteristics of a metal. Most non-metals classify as a gas. This includes : helium, hydrogen, oxygen, carbon, nitrogen, and sulfur just to name a few.
Where are all these elements found on the table? The right sides of the periodic table.
Anne has a sample of a substance. Its volume is 20 cm3, and its mass is 100 grams. What is the sample’s density?
A car engine uses the combustion of fuel to move a system of gears that
move its wheels. Not all of the fuel's energy is transferred to the wheels.
Which two transformations happen to the rest of the energy?
I A. It is transformed into sound energy.
O B. It is transformed into thermal energy.
I c. It is transformed into chemical energy.
D. It is transformed into nuclear energy.
E. It is transformed into kinetic energy.
Answer:
A and B
Explanation:
When a car engine uses the combustion of fuel to move a system of gears that move its wheels, the fuel's energy is transferred to the wheels and the rest of the energy: is transformed into sound energy and thermal energy. So, option (A) and (B) are correct.
What is law of conservation of energy?Energy cannot be created or destroyed, according to the rule of conservation of energy. However, it is capable of change from one form to another. An isolated system's total energy is constant regardless of the types of energy present. The law of energy conservation is adhered to by all energy forms.
In a nutshell, the law of conservation of energy asserts that the system's total energy is conserved in closed systems, or systems that are separated from their environment.
When car engine uses the combustion of fuel to move a system of gears that move its wheels, maximum of its energy transformed into kinetic energy and rest of energy is dissipated in a form of sound energy and thermal energy. So, option (A) and (B) are correct.
Learn more about energy here:
https://brainly.com/question/1932868
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what does the world sunlight map tell you about how much sunlight Australia gets compared to Brazil.
Answer:
well i think that Australia has more sunlight than Brazil based on the map and the colors and numbers that show on the bottom also Australia has more direct normal irradiance and has more solar coverage than other continents checks out and the sun hits Australia more cause Australia is facing the sun more i think cause for example Antarctica is very cold cause that place is not facing the sun as much as Africa, Australia and other places.
Explanation:
All known matter is made up of Question 1 options:
A. molecules
B. legos
C. solids
D.atoms
the answer is (a) molecules
Answer:
D. Atoms
Explanation:
You are made of matter, everything you touch is made of matter if your at a desk thats matter. Therefore the answer is Atoms
Use the following table of a school bus during morning pickups to calculate its average speed between 0h and 2.34h.
hint from my teacher: use the equation for average speed
Answer:
Hi there, this image is your answer
What type of properties are being used to describe an unknown object by giving the size, color, shape and mass? options:
A. Chemical Properties
B. Physical Properties
Objects too far away from the Sun do not orbit it. Explain why this occurs.
Answer:
The Sun's gravitational pull is not as strong as objects get farther away
Explanation:
Answer:
The answer would probably be gravitational pull
Explanation:
The farther an object is from the sun and the slower it will orbit the sun. If an object is closer from an other star than to the sun, or the field of attraction of this star is stronger than the one of the sun, this object will not orbit the sun at all.
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ASAP HELP PLS
Amy has a mass of 30 kg, and she is riding a skateboard traveling 5 meters per second.
What is her momentum?
5 kg⋅m/s
6 kg⋅m/s
30 kg⋅m/s
150 kg⋅m/s
Answer:
A is correct
Explanation:
Momentum is the product of mass and velocity of the moving object. The momentum of Amy weighing 30 Kg riding with 5 m/s is 150 Kg m/s.
What is momentum?Momentum is a physical quantity measuring the product of mass and velocity of a body. There are both linear momentum and angular momentum. Angular momentum is the momentum associated with a rotating body.
Momentum of a body increases with increase in mass and velocity.
The mass of the girl is given 30 Kg riding with a velocity of 5 m/s. Thus her momentum can be calculated as:
p = m v
= 30 Kg × 5 m/s
= 150 kg m/s.
Therefore, the momentum of Amy is 150 Kg m/s.
To find more on momentum, refer here:
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How did the iron filing patterns show attractive forces between magnetic poles?
When the magnet is placed on the glass, it is attracted to the iron filings. The pattern of the iron filings shows that the lines of force that make up the magnetic field of the magnet. Also, The lines of force of north and south poles attract each other whereas those of two north poles fend off each other.
Answer:
When the magnet was placed on the glass, it attracted the iron filings. The pattern of the iron filings shows the lines of force that make up the magnetic field of the magnet. ... The lines of force of north and south poles attract each other whereas those of two north poles repel each other.
Explanation:
Hope it's answer you plz mark as breinlist !!!
GIVING BRAINLIEST FIVE STARS AND 25 POINTS!
In your own words answer the following essay question use 5-7 sentences:
Why does a car’s engine become hot while it is running?
Answer:
Engines can overheat for many reasons. In general, it's because something's wrong within the cooling system and heat isn't able to escape the engine compartment. The source of the issue could include a cooling system leak, faulty radiator fan, broken water pump, or clogged coolant hose
Explanation:
Using a periodic table, the symbol Ag stands for: A. Silver B. Cesium C. Potassium D.Gold RIGHT ANSWER GETS BRAINLIES
A. Silver is the answer
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God bless!
Which subatomic particle has a positive charge? options:
Neutron
Electron
all of the above
Proton
Answer:
proton
Explanation:
pro + positive neutron =neutral and electron= negative
1.Compare how waves are used to send information.
2. Describe methods of communication.
3. Identify modern methods of communication.
Answer:
1:Radio waves are used to carry satellite signals. These waves travel at 300,000 km/s (the speed of light).
2:The standard methods of communication are speaking or writing by a sender and listening or reading the receiver. Most communication is oral, with one party speaking and others listening. ... A mixed message occurs when a person's words communicate one message, while nonverbally, he or she is communicating something else.
3: Today means of communication has increased such a lot that we can receive or send messages from or to far off places. Various means of communication which we use in the modern world are Posts and Telegraphs, Telephone, Radio and Television, Telex, Fax, Pagers, Email, Newspapers and cinema.
How do we determine how many protons are in an element: options:
A. Isotopes
B. Atomic mass - atomic number
C. atomic number
D. atomic mass
Answer: B:)
Hope I helped:D
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Breaking a pencil in half is an example of: options:
A. nuclear change
B. physical change
C. chemical change
PLEASE HELP ME ASAP!!! THIS IS DUE IN 20 MINUTES!! Tell if Rusting (Oxidation) is a Physical or Chemical Change. Also, explain what it means and give an example.
I WILL GIVE BRAINLIEST TO THE BEST ANSWER!!!
Redox reaction is the oxidation of iron, which forms iron oxide, also known as rust. This reaction can be symbolized with the following equation: 2Fe + 3O2 forms Fe2O3. Notice the iron atoms and oxygen molecules combine to form a new compound, which makes this reaction a chemical change.
Which subatomic particle has a positive charge options:
A. Neutron
B. Electron
C. all of the above
D. Proton
help please fill in the blank
When you look at the Sun through a filtered telescope, the visible portion of the Sun appears blotchy.
These blotches are called (BLANK)
. The layer of the Sun where these occur is called the (BLANK)
.
Answer:
sunspots; photosphere
Explanation:
how is mitochondria like the digestive system?
The mitochondia takes in nutrients and then breaks it down like the digestive system.
Explanation:
what is santa's average speed when visiting houses if he visits 800 million houses over 48 hours?
Well, "speed" normally = (total distance covered) / (time to cover the distance).
In this case, we don't know the total distance that Santa has traveled, so the question can be answered only if we're willing to consider some other meaning of "speed".
Maybe we could say that in this case, "speed" means the average rate at which he visits houses. Then ...
Speed of visits = (total houses visited) / (time to visit them).
Speed of visits = (800 million houses) / (48 hours)
Speed of visits = 16.67 million houses per hour.
That's 277.8 thousand houses per minute
That's 4,630 houses per second
