What is an alternative fuel?
O A. One that is available as a backup
B. One that uses nonrenewable resources
C. One that has not been developed yet
D. One that is not a fossil fuel
SUB

Answer:

180 p

Explanation:

Energy refers to the capacity of doing work.

Amount charged by an electrical company = 15 p per unit of energy (kWh)

As 1 W = 1000 kW,

\(500W=\frac{500}{1000}kW=0.5\,kW\)

Also, 1 day = 24 hours.

Cost of running a 500 W freezer = 0.5 kW freezer for 1 hour = \(15\times 0.5=7.5\,p\)

Therefore,

cost of running a 0.5 kW freezer for a day ( 24 hours ) = \(7.5\times 24=180\,p\)

Amount charged by an electrical company = 15 p per unit of energy (kWh)

As 1 W = 1000 kW,

\(500W=\frac{500}{1000}kW=0.5\,kW\)

Also, 1 day = 24 hours.

Cost of running a 500 W freezer = 0.5 kW freezer for 1 hour = \(15\times 0.5=7.5\,p\)

Therefore,

cost of running a 0.5 kW freezer for a day ( 24 hours ) = \(7.5\times 24=180\,p\)

Answer:

Adaptation to their environments!

Explanation:

The mice have different colours of fur because of their surroundings. For example, because the beach mouse lives near- well- the beach, it will have lighter coloured fur to blend in with the sand (and they would need to do that to hide from predators, more than likely). That would be really hard to do if they had dark brown fur hahah~

The same goes for the forest mouse, just instead of sand and changing colour to match something light-coloured, it would change to a dark shade of brown to match the dirt and dark (brown-ish) greens in the forest.

I know this was SUPER late, but I hope I helped in some way ^^

Answer:

im not sure what exactly you want? if its answering the questions then search up each one and rephrase the answers you get, for instance for mitochondria is the powerhouse of the cell. just write something simple thats what i did when i had to do something like this it took only a couple of minutes

Explanation:

The Organelles help the cell to function efficiently.

I can see that your question has to do with the organelles in the cell but I don't quite get the analogies that you intend to use. However, I would explain the organelles one after the other.

Endoplasmic reticulum: The endoplasmic reticulum (ER) is a network of membranous tubes and sacs within the cytoplasm of eukaryotic cells. It serves as a transport system for proteins and lipids, as well as a site for folding and modification of newly synthesized proteins.

Ribosomes: Ribosomes are complex molecular machines that are found in the cytoplasm of all living cells. They are responsible for synthesizing proteins from amino acids, which are the building blocks of proteins.

Mitochondria: These are organelles found in the cytoplasm of eukaryotic cells. They are often referred to as the "powerhouses" of the cell because they are responsible for producing most of the cell's energy in the form of ATP (adenosine triphosphate).

Vacuole: Vacuoles are membrane-bound organelles found in eukaryotic cells. They are large, fluid-filled compartments that serve several important functions within the cell, including storage of nutrients and waste, regulation of the cell's water balance, and maintenance of cell shape.

Cytoplasm: Cytoplasm is the gel-like substance that fills the interior of eukaryotic cells, excluding the nucleus. It is a complex mixture of water, ions, organic molecules, and a variety of cellular structures, including organelles such as mitochondria, ribosomes, endoplasmic reticulum, and lysosomes.

Lysosomes :Lysosomes are membrane-bound organelles found in eukaryotic cells. They are referred to as the "garbage trucks" of the cell because they are responsible for breaking down and recycling cellular waste and unwanted material.

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Answer:

I believe that the answer is 2

Answer:

2

Explanation:

To find an epicenter of an earthquake, you look directly above the point at the center. The center, as we can see, is at point 3. If we move in a straight line up, we can see that the epicenter is at point 2.

To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.

Answer:

B.

Explanation:

Answer: its 5ft tall and 12 inches

Explanation:

Answer: 5.) Mars, and Jupiter 6.) Dwarf Plant 7.) Gas giants 8.) Smooth 9.) Gravity

Explanation:

hope this helped :)

Answer:the answer is mars,jupiter,dwarf plant,gas giants,smooth,and gravity.

Answer: Genes are transcribed into RNA molecules, which are then translated into proteins.

Explanation: Genes are sections of DNA that contribute to certain traits, characteristics or functions. Genes code for proteins or parts of proteins that influence things like the immune system, skin pigmentation, hormone production, and eye color.

Answer:

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes.

Explanation:

Answer:

1) SpongeBob investigated whether Clean-O detergent is a good laundry soap. 3) the dependent variable is the color of the pants/how clean the pants were. 4) SpongeBob's conclusion should be that Clean-O detergent is not a good detergent.

Explanation:

You didn't have #2 - it was the same question as #1

Answer:

Hi there!

Explanation:

Questions;

1) He wanted to investigate if clean-o detergent will clean his pants....

2) The independent variable is what the pants were washed in (clean-o detergent)....

3) The dependent variable is, how clean the pants were after washing them...

4) The conclusion should be, the detergent that his friend sandy had told him.. Didn’t work & Clean-o detergent didn’t work any better than plain water.

Hope this helps!

~Have a great day!~

If you have any questions, feel free to ask!

Answer:

The answer is A

Explanation:

its total number of electrons

Answer:

Explanation:

The fossil record is considered to be incomplete because fossilization is a very rare phenomenon. Most organisms decompose quickly after their death, and their remains dispersed. In order for fossilization to occur, the remains have to be covered by sediments and stay undisturbed for thousands of years.

Answer:

The fossil record is considered to be incomplete because fossilization is a very rare phenomenon. Most organisms decompose quickly after their death, and their remains are dispersed. In order for fossilization to occur, the remains have to be covered by sediments and stay undisturbed for thousands of years.

Answer:

Solid and gas

Explanation:

Answer:

A.weather balloon; electroscope

A student predicts that a solution of ethanol (C2H5OH) and water will have a lower density at room temperature than that of pure water. By taking moisture the student can test this prediction.

Ethanol is a natural plant fermented by-product which can also be produced by the process of  hydration of ethylene.

It is an important industrial reagent, can be used as a solvent, for the synthesis of solvent, organic chemicals and some additive to automotive gasoline.

Its chemical formula is C2H6O, two carbon atoms and one oxygen atom where as the structural formula is C2H5OH indicating that the two-carbon chain has a hydroxyl group.

Ethanol is always a liquid at room temperature and has the melting point of 156K and a boiling point of 351 K.

It is used in making many medicines like cough syrups, tonics,  any proportion of ethanol is soluble in water.

Direct consumption of even a small quantity of pure ethanol is lethal to body.

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Answer:

no wawwawwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwa

Answer:

Explanation:

Why is the use of the inquiry process (or scientific method) a practical way to approach science?

1. The inquiry process is a practical way to approach science because the inquiry process begins by asking questions and moving on from there.  

2. In science it is important to investigate phenomena or certain subjects by posing questions that you would like to answer through the scientific method.

3.  Therefore, the inquiry method is connected because to inquire on a subject requires raising questions which is an essential step in scientific discovery.

Why are scientific theories modified, but seldom discarded?

1.  If a theory cannot explain new evidence or observations then the theory is revised or even thrown

out, but if the theory still explains a wide range of observations and evidence then it is revised

rather than discarded.

2.  it will still hold some value as above as you learn more you tweak your hypothesis to fit the ever expanding amount of info and data you collect and assimilate

3.  The only way they ever go away is if people stop working on them.

How has science and technology influenced everyday life?

1.  computers

2.  health care

3. bikes

None of these would exist today without science or technology

Answer:

Explanation:

Why is the use of the inquiry process (or scientific method) a practical way to approach science?1. The inquiry process is a practical way to approach science because the inquiry process begins by asking questions and moving on from there. 2. In science it is important to investigate phenomena or certain subjects by posing questions that you would like to answer through the scientific method.3. Therefore, the inquiry method is connected because to inquire on a subject requires raising questions which is an essential step in scientific discovery.Why are scientific theories modified, but seldom discarded?1. If a theory cannot explain new evidence or observations then the theory is revised or even thrownout, but if the theory still explains a wide range of observations and evidence then it is revisedrather than discarded.2. it will still hold some value as above as you learn more you tweak your hypothesis to fit the ever expanding amount of info and data you collect and assimilate3. The only way they ever go away is if people stop working on them.How has science and technology influenced everyday life?1. computers2. health care3. bikesNone of these would exist today without science or technology

Answer:

In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.

Explanation:

Answer:

The answer would be D, finch 4 is adapted to eat small insects that live in tiny holes.

Explanation:

did the test!!

Answer: hope this helps ♡

C. Work
Joule is an SI unit (International System of Units) of Energy.

Work

Joule is the SI unit of work (J). The unit bears the name of James Prescott Joule.

The work accomplished by a force of one newton causing a displacement of one meter is known as a joule. Work is sometimes measured in newton meters (N-m).

Force applied over a distance is what we refer to as work. Examples of work include lifting a captive helium balloon and pushing something against gravity while operating a car up a hill. The mechanical manifestation of energy is work.

Work can be either positive or negative because the applied force can be either negative or positive.

The formula of work is

                       Work = Force x Distance

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Answer:

Answer: 12

Explanation:

\({ \sf{3Na _{2} O +2 AIBr _{3} \rightarrow 6NaBr + AI _{2} O _{3} }}\)

\({ \tt{sum = 3 + 2 + 6 + 1}} \\ = { \tt{12}}\)

Answer:

12

Explanation:

3+2+6+1

The gas laws have been applied to find the missing values;

1) 1.72 atm

2) 880 K

3) 1.13 atm

4) 5.9 L

5)  167.4 kPa

The Charles, Boyle's and Gay - Lussac's laws are applied here.

We know that;

From Gay Lussa law

\(P_{1}\)/\(T_{1}\) = \(P_{2}\)/\(T_{2}\)

\(P_{2}\) = 1.21 * 450/315

\(P_{2}\) = 1.72 atm

From Charles's law

\(V_{1}\)/\(T_{1}\) = \(V_{2}\)/\(T_{2}\)

\(T_{2}\)    = 4.8 * 495/2.7

\(T_{2}\)= 880 k

From Boyle's law

\(P_{1}\)\(V_{1}\)= \(P_{2}\)\(V_{2}\)

\(P_{2}\) = 7.14 * 1.9/12.0

\(P_{2}\) = 1.13 atm

From the general gas law;

\(V_{2}\) = 2.1 * 6.9 * 291/1.8 * 400

\(V_{2}\) = 4216.59/720

\(V_{2}\) = 5.9 L

From Gay Lussa law

\(P_{1}\)/\(T_{1}\) = \(P_{2}\)/\(T_{2}\)

\(P_{2}\)  = 315.2 * 145/273

= 167.4 kPa

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Answer:

39

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Answer:

sugar-water is a mixture not a compound.(homogeneous mixture.)

Explanation:

Compounds are substances formed by the chemical combination of two or more elements. Mixtures are substances formed by physically mixing two or more substances together.

The solution of sugar in water is considered a mixture not a compound because the particles of sugar and water are not completely dissolve nor mixed in a fixed proportion or ratio. hope this helped :)

Answer:

Rotting vegetation and erupting volcanoes release some chemicals that can cause acid rain, but most acid rain is a product of human activities. The biggest sources are coal-burning power plants, factories, and automobiles.

Answer:

coal and oil power plants and automobiles

Explanation:

Answer: D) longer wavelength.

Explanation: