Answer:
B
Explanation:
Heat will flow from water to copper until both reach same temperature.
Answer: B.) Heat will flow from the water in the glass to the copper until both reach the same temperature
Explanation: i took the flvs test and got it right
ANSWER FAST AND CORRECT!
Answer:
2
Explanation:
Answer:
B. the number of trees
Explanation:
process of elimination.
Why is it important that humans (and other animals) maintain a relatively constant body temperature?
A. because it is important to keep the water in the body from freezing
B. because chemical and physical processes work best at specific temperatures
C. because if an animal gets too cold its structures are more likely to break
D. because if an animal gets too cold its structures are more likely to melt
SCIENCE 20 POINTS
can sum 1 help please this whole test is worth 30% of my grade
Answer:
what do we need to help with you got it all right
Explanation:
Which graph best supports the claim that the gravitational force between two point masses is a function of the distance between the masses?
A) A
B) B
C) C
D) D
Answer:
C.
Explanation:
To make this easier, Mathematically, a function is a straight line (linear) that goes through the origin.
Graph B best supports the claim that the gravitational force between two point masses is a function of the distance between the masses. Therefore, option B is correct.
Which graph shows the given situation?The graph that best supports the claim that the gravitational force between two point masses is a function of the distance between the masses and is a hyperbolic curve with an inverse square relationship.
Therefore, the graph that shows the force of attraction between two point masses (y-axis) plotted against the distance between them (x-axis) in a hyperbolic curve with an inverse square relationship is the one that best supports the claim.
This graph should show a decrease in the force of attraction as the distance between the masses increases, and the curve should become steeper as the distance decreases. Hence, option B is correct.
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A mixture where one substance dissolves in another is called:
A) mixture
B) pure substance
C) solution
D) group
Answer:
its the big A
Explanation:
The energy from sunlight splits the water molecules into ____________ and _________ gas.
a. chlorophyll, oxygen
b. chlorophyll, hydrogen
c. hydrogen, oxygen
d. oxygen, carbon dioxide
Answer:
I hope this is correct...
Explanation:
I think the answer is
C. Hydrogen, Oxygen
Hope this helps :)
The mechanical action of friction causes: chemical energy heat energy potential energy
Answer:
Heat Energy
Explanation:
Eliza places an 18-gram piece of an unknown substance into a graduated cylinder that is filled with 5 mL of water, and the water rises from the 5 mL line to the 8 mL line. What is the density of the unknown substance in g/mL?
A) 3.6 g/mL
B) 8 g/mL
C) 0.167 g/mL
D) 6 g/mL
Plz helpp
Answer:
B?
Explanation:
Hee Sun drew an electron dot diagram of a silicon atom as shown. S i with 1 dot each above, right, below, left. In addition to changing the symbol to C, how would this diagram compare with an electron dot diagram of a carbon atom (C)? The dot to the left of the symbol would be removed in the diagram for carbon. The same number of dots would appear in the diagram for carbon. There would be two dots above and to the right of the symbol in the diagram for carbon. The single dots would be replaced with two dots on each side of the symbol in the diagram for carbon
(sry if doesnt make sense lol)
Answer:
B: The same number of dots would appear in the diagram for carbon.
Explanation:
The same number of dots would appear in the electron dot diagram for carbon. Therefore, option B is correct.
What is the lewis electron dot diagram?A lewis electron dot structure of an element or molecule can be used to represent the number of bonds, the bonded atoms, and the lone pairs remaining in the atoms in the molecule.
Lines can be used to show between atoms that are bonded with each other and excess electrons can be represented as dot pairs and denoted in front of the atoms.
The valence electrons of each carbon atom are equal to four from the electronic configuration of the carbon atom. As the valence electrons of each Silicon atom are equal to four from the electronic configuration of the silicon atom.
Both silicon and carbon belong to the same group so they have the same number of valence electrons. Therefore, the same number of dots will appear in the electron dot diagram for carbon.
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Can you please help me
A student is given a sample of pure water, a sample of salt water and a sample of muddy water.
a. Which sample(s) is classified as a compound? How do you know?
b. Which sample(s) are classified as mixtures? How do you know?
c. Classify the mixture(s) as heterogeneous or homogeneous. Justify your answer.
Answer:
aa. Which sample(s) is classified as a compound? How do you know?
An example of the transfer of energy between systems through work is the expansion of gas in a steam engine or car piston. Explain the energy transfer process.
A) Steam engines and pistons both expand as pressure is exerted within them and they go on to accomplish work like moving a train.
B) Energy is converted to work as the expansion of the steam engine occurs and the gas collides with the internal steam engine parts.
C) The rapidly moving particles of the expanding gas is doing work on the piston and energy is transferred from the gas to the piston.
D) The quick moving parts of the expanding steam engine is doing work on the piston and energy is transferred from the engine to the piston.
Answer:
C is the answer because since it's chemistry particles expanding would most likely be your answer
The energy transfer process is rapidly moving gas particles which are expanding doing work on piston and energy transferred from gas to piston according to first law of thermodynamics.
What is first law of thermodynamics?First law of thermodynamics is related to law of conservation of energy along with distinguishing between transfer of energy.According to this law, total energy of an isolated system remains constant.
It only gets transformed from one form to another.It puts in action the flow of energy across boundaries separating system from its surroundings.
Classic example of first law of thermodynamics is steam engine .It operates in a cyclic fashion with piston moving up and down with each cycle.Steam is fed into cylinder in first half of cycle and for second half of cycle it is allowed to escape. Work done in one complete cycle,is the difference between absorption of heat at high temperature and it's exhaustion at lower temperature.
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Why are spines considered a physical characteristic adaptation in cactus?
a cactus with sharp spines
The spines make the cactus look taller.
The spines protect the cactus from animals.
The spines allow for easier photosynthesis.
The spines are the seeds of the cactus.
Answer:
Explanation:
Spines are considered a physical characteristic adaptation in cacti because they help the plant to survive in its dry and hot environment.
The spines serve to protect the cactus from herbivores and other animals that might eat or damage it. They also help to regulate the temperature of the cactus by reducing the amount of sunlight that hits its epidermis. Additionally, the spines help to reduce water loss by minimizing the amount of surface area over which water can be lost through transpiration. Thus, spines are an important adaptation that enables cactus plants to survive and thrive in their harsh and arid environments.
Which of the following best describes chicken noodle soup?
A) compound
B) mixture
C) solution
D) element
Answer:
B. Mixture
Explanation:
Because there is a mixture of items in the soup
Chicken noodle soup is mixture. Therefore, option B is the correct answer.
Mixtures are the substances composed of two or more forms of matter. Substances in the mixture are not combined chemically. Some properties of mixtures are,
They are impure substance.Classified in to homogenous and heterogenous.They don’t have a fixed composition.Substance in the mixture can be separated by physical methods such as filtration etc.Thus, we can conclude that, chicken noodle soup is a mixture. Therefore, option B is the correct answer.
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need help with these question please help
What period would this atom be found in?
Period 4
Period 3
Period 2
Not enough information to be able to answer.
Answer:
To answer, you would need more information.
Explanation:
Heat from the sun travels to the Earth _____. in low frequency waves through the movement of molecules in high frequency waves by conduction and convection
Answer:
slow frequency waves
Explanation:
Answer:
in high frequency waves
Explanation:
plz give brainly
The Dart Frog is a brightly colored frog. These bright colors could mean that this frog is poisonous,
warning predators to stay away. Plants in the rainforest are normally crowded and have very little
space. The big leaves of a Hosta Plant allow the plant to receive as much sunlight as possible when
the sun is out.
What type of adaptations are these? Compare and contrast the adaptations of the Dart Frog and the
Hosta Plant. Your answer should be 3–4 sentences long.
Answer: hope this helps..-
compare=
they both are in the same biome
they're both slow in the food chain
contrast=
one is an amphibian, while the other is a plant
their food category is different
Explanation:
Hope this helped you! May i have brainliest please? And Have a nice day! :3
How might someone dispute the results of your investigation? How might you counter the argument?
you counter the argument by either walking out or confronting whats the problem then fixing that problem
--Jax
hope this helps
What should the student do in her investigation to produce these results?
A) She should place a positively charged rod near the left sphere.
B) She should place a negatively charged rod near the left sphere.
C) She should place two negatively charged rods near each sphere.
D) She should place two positively charged rods near each sphere.
Answer:
A. To make the negatively charged particles attract to something else than the other sphere, then do A.
Explanation:
According to the forces of attraction,the student should place a negatively charged rod near the left sphere.
What are forces of attraction?Forces of attraction is defined a force by which atoms present 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 from each other . 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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Analyze the chart below and then answer the follow question. In 2020, how does the percentage of the population with access to drinking water facilities in North America compare to that of the World?
Question options:
Compared to the average population around the World, North America has a 24% greater percentage of people with access to safely managed drinking water.
Compared to the average population around the World, North America has a 98% greater percentage of people with access to safely managed drinking water.
Compared to the average population around the World, North America has a 16% greater percentage of people with access to safely managed drinking water.
Compared to the average population around the World, North America has a 74% greater percentage of people with access to safely managed drinking water.
Answer:
I belive it is 16%
Explanation:
I looked at the graph
Which of the following is NOT an example of mechanical energy?
A. a garden hose with moving water
B. music playing on your phone
C. a windmill moving in the wind
D. a lamp giving off light
Answer:
Lamp giving off light (D)
Explanation:
since it releases heat energy and there is no mechanics inside it
Hope this helps
Good luck!
Answer: A, (A garden hose with moving water)
Explanation:
Hope this helps!
(GIVING BRAINLYLIST) Describe an adaptation to a plant's physical characteristic and explain how this adaptation helps the plant survive.
Answer:
Plant adaptations are changes that help a plant species survive in its environment. Aquatic plants that live underwater have leaves with large air pockets inside that allow the plant to absorb oxygen from the water. The leaves of aquatic plants are also very soft to allow the plant to move with the waves.
Explanation:
i searched ggl
The Toucan has a long, narrow beak that allows it to reach fruit that is hard to reach for other birds.
Plants, like the Monstera Plant, in the rainforest have long, grooved leaves to drop water to the forest
floor. The excessive water that falls in the rainforest could lead to mold, so the leaves adapted to
have “drip tips” that allow the water to run off of the leaves.
What type of adaptations are these? Compare and contrast the adaptations of the Toucan and
Monstera Plants of the rainforest. Your answer should be 3–4 sentences long. (PLS SAY IF IT IS PHYSICAL CHARATIRISTIC, A BEHAVOR ADOPTATION< OR A LIFE CYCLE ABATION.
Answer:
The type of adaptations of the Toucan and Monstera Plant are physical adaptions. Both of these adapted physical characteristics help these organisms to survive. The difference in their physical adaptation is that in the Toucan, the physical characteristic helps the Toucan consume nutrients. Meanwhile, the adaptation of the Monstera Plant helps prevent harmful things such as mold.
Explanation:
Answer:The Toucan has a long, narrow beak that allows it to reach fruit that is hard to reach for other birds. Plants, like the Monstera Plant, in the rainforest have long, grooved leaves to drop water to the forest
floor. The excessive water that falls in the rainforest could lead to mold, so the leaves adapted to
have “drip tips” that allow the water to run off of the leaves.
Explanation: The Toucan has a long, narrow beak that allows it to reach fruit that is hard to reach for other birds. Plants, like the Monstera Plant, in the rainforest have long, grooved leaves to drop water to the forest
floor. The excessive water that falls in the rainforest could lead to mold, so the leaves adapted to
have “drip tips” that allow the water to run off of the leaves.
Please
help thanks !!:)
I APPRECIATE THE HELP!!
I will give BRAINLIEST!!
Answer:
1. B
2. D
3. B
4. D
Explanation:
Hope that helps
what music was made in 1920
Answer:
Jazz, Blues, Swing, Dance Band, And Ragtime
Explanation:
I hope this helps
Which fossil fuel accounts for 95% of consumption for transportation?
coal
natural gas
nuclear energy
oil
Answer:
The answer is oil.
Explanation:
Transport remains very dependent on oil: oil-derived fuels account for 95 % of energy consumption in transport.
Which statement accurately describes renewable energy sources?
They take millions of years to form and should be used responsibly.
They include fossil fuels and hydroelectric power.
They are found in nearly limitless supply.
They provide the majority of the energy for the United States.
Answer:
The answer would be C. They are found in nearly limitless supply.
Explanation:
The reasoning for this is because unlike nonrenewable energy sources, renewable energy sources as the name suggests, are able to be renewed. Unlike nonrenewable energy sources such as fossil fuels, renewable energy sources such as but not limited to solar, wind, and hydroelectric sources of energy can be harnessed and used at any point of time
HElphow can an electrical current produce a magnetic field, and how can a magnetic field produce an electrical current? explain
Answer:
As Ampere suggested, a magnetic field is produced whenever an electrical charge is in motion. The spinning and orbiting of the nucleus of an atom produces a magnetic field as does electrical current flowing through a wire. The direction of the spin and orbit determine the direction of the magnetic field.
Explanation:
Answer:
What is Electric current?
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge past a region.
What is a Magnetic Field?
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetized materials.
How can an electrical current produce a magnetic field?
These circles stretch out along the wire, forming cylinders. If an electric current is passed through a long coil of wire (a solenoid ) a magnetic field is produced which is the same shape as that of a bar magnet.
How can a magnetic field produce an electrical current?
Moving magnetic fields pull and push electrons. ... Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current.
What is inertia?
10 points
A: The tendency of an object to continue doing what it is currently doing
B: The opposing force of gravity
C: Another name for unbalanced forces
D: The mass of an object
Answer:
A
Explanation:
The answer would be A because Inertia is when a property of matter remains unchanged.
Describe the special water feature found in Passamaquoddy Bay
Answer:The Old Sow whirlpool is located off the southwestern shore of Deer Island, New Brunswick between the island and Eastport, Maine. The whirlpool is caused by variations in local bathymetry combined with the extreme tidal range of the Western Passage where waters exchange between Passamaquoddy Bay and the Bay of Fundy.
Explanation: