An arrow is fired at a target on Highwater how does the energy charge between the moment the arrow is fired and the moment it hits the target
A The potential energy and kinetic energy remains the same
B The potential energy decreases as kinetic energy increases
C The kinetic energy decreases as potential energy increases
D The kinetic energy remains at zero but potential energy increases

Answers

Answer 1

The potential energy decreases as kinetic energy increases. Hence, option C is correct.

What is potential energy?

Potential energy is stored energy that depends upon the relative position of various parts of a system.

To shoot an arrow, the string has to be released. The kinetic energy is converted by the potential energy of the bow. Therefore, potential energy is converted into kinetic energy.

Hence, option C is correct.

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Related Questions

What is the pH of a solution with a
POH of 2.1?

Answers

Answer:

11.9

Explanation:

ph=poh-14 and vice versa. Always subtract by 14

Ions in solution are found in a hydration shell of water. This shell must be removed for an ion to pass through the channel. How does the K channel accomplish removal of the water from the shell around the ion

Answers

The K+ channel uses the energy in ATP hydrolysis to remove the hydration shell from the K+ion

All of this truly implies is that one of these bonds breaks in a hydrolysis process (a water-mediated breakdown reaction), releasing a sizable amount of energy.

The following reaction results in the hydrolysis of ATP to ADP:

ATP+H2O⇋ADP+Pi+energy

The hydrolysis of ATP to ADP is reversible, like the majority of chemical processes.

Energy is needed for the reverse process, which creates ATP from ADP and Pitext P iPi start subscript, P, end subscript, start subscript, I end subscript.

Because cells frequently use (hydrolyze) ATP molecules and depend on constant production of replacement ATP, ATP regeneration is crucial1^1.

Hence the  K+ channel uses the energy in ATP hydrolysis to remove the hydration shell from the K+ion

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How many moles of Ar gas are
present in a container with a
volume of 78.4 L at STP?

Answers

Answer:

1 mole of a gas at STP occupies 22.4 L volume

Now the volume is given =78.4 therefore,

No. of moles of gas = 78.4 ÷ 22.4 = 3.5 moles

I hope it helps you~

Which is an issue that governments must consider before passing conservation policies?

Answers

Issues that should be taken into account:

"Urbanization implications" are the issues that governments must consider before passing conservation policies.  

Conservation policies:

It is a policy intended to preserve or restore a community, ecosystem, endangered species, or a natural or semi-natural environment.

Protecting the planet's natural resources for the benefit of present and future generations is known as conservation.

Urbanizations implications:

Deforestation, habitat loss, and freshwater extraction are all frequent effects of urbanization, which can reduce biodiversity and change the ranges and interactions of various species.Overall, urbanization resulted in reductions of 2.6% carbon sequestration, 1.1% natural habitat, 6% soil conservation, and 3.4 % water retention.      Compared to other types of environmental loss, urbanization has a longer-lasting effect. Thus the government must consider this issue while passing conservation policies.  

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CH3CHOHCH3 an electrolyte in solution.

Answers

The complete statement is "CH3CHOHCH3 is not an electrolyte in solution." This is further explained below.

What is electrolyte ?

Generally,a liquid or gel containing ions that may be broken down by electrolysis, such as the kind used in batteries.

In conclusion, "CH3CHOHCH3 is not an electrolyte in solution," is the whole sentence.

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Which Anion is this?:
CO2 – 3
(a) Nitrate
(b) Carbonate
(c) Nitrite
(d) Sulphate

Answers

Answer:

Carbonate

Explanation:

Carbonate is a combination of a carbon atom and two oxygen atoms for form a compound.

3. 2KOH + H2SO4 = K2SO4 + 2H2O what chemical reaction is it.

1. Single displacement
2. Double displacement
3. synthesis
4. Decompostion

Answers

From what is given, double replacement is what it is

The constituents of leaf pigment can be separated by: ​

Answers

Answer:

Paper Chromatography

Explanation:

Most leaves are green due to chlorophyll pigments of different types like chlorophyll A, chlorophyll B, etc. All these pigments will be seperated according to their molecular composition. So, the correct option is 'Paper Chromatography'.

what is electron arrangement of phosphorus atom?

Answers

Answer:

[Ne] 3s² 3p³

Explanation:

this is the answer and give me likes and vote for me

4. Which of the following methods of preserving food keeps food for long without going bad by making bacteria inactive? A. Freezing and deep frying B. Canning and salting C. Charcoal cooler and freezing D. Drying and carbon dioxide 4 . Which of the following methods of preserving food keeps food for long without going bad by making bacteria inactive ? A. Freezing and deep frying B. Canning and salting C. Charcoal cooler and freezing D. Drying and carbon dioxide​

Answers

Answer:

c. because it lacks oxygen which might support life of the bacteria

The hormone epinephrine is released in the human body during stress and increases the body's metabolic rate. Epinephrine, like many biochemical compounds, is composed of carbon, hydrogen, oxygen, and nitrogen. The percentage composition of the hormone is 59.0% C, 7.15% H, 26.2% O, and 7.65% N. Determine the empirical formula.

Answers

Answer:

C9 H13 N O3  

Explanation:

Carbon mole wt = 12

   59 /12 = 4.917

Hydrogen  mole wt = 1

  7.15 / 1 =   7.15

Oxygen mole wt = 16

  26.2 / 16 = 1.6375

Nitrogen  mole wt = 14

  7.65 / 14 = .5464                  

Now divide the numbers by the smallest found      

 Carbon   4.917 / .5464 = 9

 Hydrogen  7.15 / .5464 = 13

 Oxygen    1.6375 / 3

  Nitrogen  .5464 /.5464 =1                   emp form  C9 H13 O3 N      

Describing nuclear fission and fusion which applies to fusion? check all that apply. involves the splitting of nuclei takes place in the sun releases radiation as a waste product occurs in nuclear power plants and is used to generate electricity plays a role in the production of essentially all elements heavier than helium releases large amounts of energy

Answers

Which holds true for nuclear fission? Check all that apply.

Involves the splitting of nucleiReleases large amount of energyReleases radiation as a waste productOccurs in nuclear power plants and is used to generate electricity

Which holds true for nuclear fusion? Check all that apply.

Takes place in the sunPlays a key role in the production of essentially all elements heavier than heliumReleases large amounts of energy

What is nuclear fission?

An unstable nucleus splitting into two smaller, more stable nuclei is known as nuclear fission. Large amounts of energy are released during this process since a smaller nucleus's structure requires a lot less energy to maintain. This mechanism is exploited by turning the thermal energy released into electrical energy.

What is nuclear fusion?

The alternative is nuclear fusion. It entails joining two smaller, less stable nuclei into one larger, more stable nucleus. The sun is where this process takes place because it needs so much energy. Moreover, a tremendous amount of energy is released. Helium, a two-proton element, is the smallest element that can be created using this procedure. The smallest element has one proton (H).

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Answer:

A B D E

Explanation:

Edge 2023

How can the effect of radiation on healthy cells be reduced when treating cancer?
A. Splitting the radiation into multiple treatments.
B. Using metal plating to absorb excess radiation.
C. Using less damaging alpha radiation.
D. There is no way to reduce the negative side effects.

Answers

An effective way of reducing effects of radiation treatment on healthy cells is by  splitting the radiation into multiple treatments; option A.

What is the effective way of reducing side effects of radiation?

The side effects of radiation treatment include damage to healthy cells.

This damage is can cause physical effects such as lowered immune system.

The best way to reduce this effect could be done by splitting the radiation into multiple treatments.

Therefore, radiation treatment produces undesirable effects such as damage to healthy cells.

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Assume that you are provided with a 20-cm Hempel column having HETP of 10 cm to distill a mixture of 90 mol% toluene and the rest is benzene. What would be the composition of the first distillate you obtained

Answers

Column height is 20cm, and HETP is 10cm.

So this column will behave as 20/10=2 ideal trays.

Hence the distillate composition will be 45%benzene.

Chem 233                                                                                                           Islam AboalnadieSeparation of Liquids by Fractional Distillation and Analysis by Gas ChromatographyBackground and Methods: The purpose of this lab was to use the techniques of fractional distillation to separate a 1:1 mixture of Ethyl acetate and Butyl acetate then use gas chromatography to analyze the amount of each compound in each of three fractions obtained through the distillation. Fractional distillation will then be compared to simple distillation.

The first fraction was taken when the distillation apparatus was near the boiling point of Ethyl acetate (77.1ºC) (1). The second was taken when the distillation apparatus was in the process of increasing temperature from the boiling point of Ethyl acetate to the boiling point of Butyl acetate (126.1ºC) (1).  The third and final fraction was taken around the boiling point of Butyl acetate until the distillation process was complete.

Please check the attached diagram for a more detailed answer.

10%benzene solution be separated as 2 timelines in txy diagram.

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A radioactive substance has a half-life of 5 million years. What is the age of a rock in which 25% of the original radioactive atoms remain? You must show your work or explain how you came up with your answer for full credit.

Answers

Answer:

10 million years

Explanation:

For a sample to decay to 25% of its original amount, 2 half lives must have passed. Since one half life is 5 million years, multiplying this by 2 gives us that 2 half lives is 10 million years.

An electric field travels away from a charge and toward a _?_ charge.

Answers

An electric field travels away from a positive charge and toward a negative charge.

What is electric field?

Electric field is the region of space where the impact of electric force is felt.

The electrostatic field is always directed away from positive charges and toward negative charges, and, field lines must go away from positive charges and toward negative ones.

Thus, an electric field travels away from a positive charge and toward a negative charge.

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Which of the following is true about nuclear power?
A It is the cheapest source of energy.
B It produces harmful radiation.
C It pollutes the atmosphere.
D It uses fossil fuels.

Please help me :')

Answers

Answer:

I thinks is B

Explanation:

they just look harmful

I also researched and it says  its harmful and causes sickness and death

How many colvant bonds can a typical carbon atom form

Answers

[tex]\huge\purple{Hi!}[/tex]

carbon atom can form four covalent bonds.

Someone pls help fast
it is desired to inflate a baggie with a volume of 869 milliliters by filling it with oxygen gas at a
pressure of 0.505 atm and a temperature of 287 k. how many grams of o2 gas are needed?

Answers

0.592 grams of O₂ gas are needed.

What is Ideal Gas ?

An ideal gas is a gas that obeys gas laws at all temperature and pressure conditions. It have velocity and mass but do not have volume. Ideal gas is also called perfect gas.

Ideal gas law equation is expressed as:

PV = nRT

where,

P = Pressure

V = Volume (in Liters)

n = Number of moles of gas

R = Ideal gas constant

T = Temperature

Here,

P = 0.505 atm

V = 869 ml = 0.869 L

R = 0.0821 L atm/K mol  [Ideal gas constant]

T = 287 K

Now put the values in above equation

PV = nRT

0.505 atm × 0.869 L = n ×  0.0821 L atm/K mol × 287 K

0.438 atm L = n × 23.56 L atm / mol

[tex]n = \frac{0.438\ \text{atm L}}{23.56\ \text{L atm / mol}}[/tex]

n = 0.0185 mol

Now,

Mass of oxygen = Number of moles × Molar Mass

                           = 0.0185 mol × 32 g/mol

                           = 0.592 gram

Thus from the above conclusion we can say that 0.592 grams of O₂ gas are needed.

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Which pair of elements has the most similar Lewis structures?
Group of answer choices

a)O and S

b)N and S

c)F and Ar

d)Cl and Ar

Answers

Answer: C.)

Explanation:

The measurement of Uric acid in 24-hour urine samples requires a specific sample collection procedure, part of which is the refrigeration of the sample. Refrigeration will:

Answers

Refrigeration will prevent bacterial growth which may result in uricase production and breakdown of uric acid in the sample.

What is uricase ?

An enzyme called uricase is responsible for catalyzing the change of uric acid into allantoin. Your body excretes uric acid, an acidic waste product, through urine. It is a typical result of the digestion of purine-rich meals.

Only media containing uric acid, allantoin, or allantoate as the primary or only source of carbon, nitrogen, and energy support the growth of the bacteria Bacillus fastidious. Raw extract of cells cultivated on uric acid had significant amounts of uricase.

Alcaligenes eutrophus, Pseudomonas aeruginosa, and Micrococcus denitrificans all displayed increased uricase activity after being placed in conditions containing uric acid, according to Kaltwasser. The ability of microorganisms to degrade uric acid and to use it for growth is an inducible property of various bacteria. Uricases of Bacillus fastidious and of Aspergillus nidulans were reported to be induced by uric acid.

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pls help mee with this question i will mark you as the brainliest

Answers

Answer:

1 2 1 2

2 1 1 2

2 1 3

2 3 3 1 3

Explanation:

Iodine-131 has a half-life of 8 days. If you start with a sample of 150 grams, how much of the original isotope will remain after 30 days?

Answers

The amount of the original isotope that remains after 30 days is 11.14.

What is the half life?

The half life of a radioactive nuclide has to do with the time that it takes for only half of the original number of nuclides to remain.

Now;

No = 150 grams

N = ?

t1/2 = 8 days

t = 30 days

Then;

N/No = (1/2)^t/t1/2

N/150 = (1/2)^30/8

N/150 = (1/2)^3.75

N = (1/2)^3.75 * 150

N = 11.14

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Given the half-life, the amount remaining is 11.14 g

What is the amount of Iodine-131 remaining after 30 days?

The half-life of idine-131 is 8 days.

Using the half-life formula:

Nt = No * (0.5)^(t/t1/2)

Amount remaining = 150 * (05)^(30/8)

Amount remaining = 11.14 g

In conclusion, the amount remaining is determined from the half-life of the substance.

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What will be the total energy shared between an electron and positron, that have been created through pair production from a 10 MeV photon

Answers

Answer:

The total energy that an electron and positron share is 5 Mev    

Explanation:

One of the potential ways that gamma rays interact with matter is by the formation of positron-electron pairs.

The pair production requires a minimum gamma-energy of 1.02 MeV since an electron's rest mass is equal to 0.511 MeV of energy. The electron-positron pair receives any extra kinetic energy from the pair-producing gamma ray.

The reaction is represented by γ =(. - 1e⁰) +  (. + 1e⁰)

E = m₀C² + [tex]KE_{electron}[/tex] + m₀C² + [tex]KE_{positron}[/tex]

10 MeV = 2m₀C² + [tex]KE_{electron}[/tex] + [tex]KE_{positron}[/tex]

[ 2m₀C²= 1.02 ] and since the mass of electron and positron is the same, the Kinetic energy (KE), 1/2 mv² will also be the same

Therefore,

KE = 1/2(10 - 1.02)

    =4.49 MeV

[ 2m₀C²= 1.02 so, m₀C² = 1.02/ 2 = 0.51]

Total energy shared = m₀C² + KE

                                  =  0.51 + 4.49

                                  = 5 Mev

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Consider the reaction, CS2(l)+3O2(g)→CO2(g)+2SO2(g) . The rate of change of CS2(g) is – 0.012 M/s . What is the rate of change of SO2(g) ?

Answers

The rate of change of [tex]SO_2[/tex](g)=0.024M/s when the rate of change of [tex]CS_2(g)[/tex] is – 0.012 M/s.

What is the rate of reaction?

Reaction rate, in chemistry, is the speed at which a chemical reaction proceeds.

[tex]CS_2(l)+3O_2(g)[/tex] → [tex]CO_2(g)+2SO_2(g)[/tex]

[tex]Rate = \frac{-dcs_2}{dt} =\frac{-do_2}{dt} =\frac{+dco_2}{dt} =\frac{1dso_2}{dt}[/tex]

Rate = \frac{-dcs_2}{dt}  =\frac{-do_2}{dt} =\frac{+dco_2}{dt} =\frac{1dso_2}{dt}

Given:

[tex]\frac{-dcs_2}{dt} =-0.012 M/s[/tex]

[tex]\frac{-dcs_2}{dt} =\frac{dso_2}{dt}[/tex]

[tex]\frac{dso_2}{dt}=0.024M/s[/tex]

The rate of change of [tex]SO_2[/tex](g)=0.024M/s

Hence, the rate of change of [tex]SO_2[/tex](g)=0.024M/s

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What is the molarity of a solution prepared by dissolving 12.0 g of sodium hydrogen carbonate, NaHCO3, in
water to make 250.0 mL of solution?

Answers

Answer:

- 0.57138096 M

- 0.571mol

- 0.571 M NaHCO3

- 0.571 mol/NaHCO3

(these are just different ways to identify the units but they all work and mean the same thing)

Explanation:

- molarity is measured by the ratio of the moles of a solute per liters of a solution

- the formula for molarity is: [tex]M = \frac{mol (s) solute}{L solution}[/tex]__________________________________________________________

- first, you need to convert 250mL to L so, [tex]250/1000=0.25[/tex]

- when it comes to converting g to mol you can do it in a separate equation but i prefer to do it all in one equation

__________________________________________________________

- so the equation for this specific problem would be set up like this:[tex]\frac{12.0g}{.25L} x \frac{1mol}{84.007 g} = x[/tex]

12.0g of NaHCO3.25 L of solution1 mol: 84.007g (the molar mass of NAHCO3)

__________________________________________________________

- now to actually solve it:

[tex]\frac{12.0g}{.25L} x \frac{1mol}{84.007 g} = \frac{12.0}{21.00175} = 0.57138096(or)/0.571mol/0.571 M NaHCO3/(0.571 mol/NaHCO3)[/tex]

you just multiply across so [tex]12x1=12[/tex] and [tex].25x84.007 = 21.00175[/tex] then divide so [tex]12.0/21.00175 = 0.57138096[/tex]

hope this helps :)

what is the force that holds atoms together

Answers

Explanation:

Chemical bond refers to the forces holding atoms together to form molecules and solids. This force is of an electric nature, and the attraction between electrons of one atom to the nucleus of another atom contributes to what is known as chemical bonds.

what made alchemy unscientific in its practices

Answers

The answer is that they were were not based on evidence and experiment and that made alchemy unscientific in its practices.

Alchemy is an old practice that might be thought of as a forerunner of chemistry.

The term alchemy is derived from the Arabic al-kimiyya, which is derived from Greek. Alchemy's fundamental notions focus around the transformation of one substance into another, often transforming a basic metal like lead or iron into a "noble" metal like silver or gold

The alchemist's main ambitions were to find the Stone of Knowledge, the medium of Eternal Youth and Health, and metal transmutation.

To conclude with we can say Alchemy is based on magic and occultism rather than true investigation and facts. Many of the items in it have been utilised as fundamentals for certain chemistry, although the vast majority of them are wrong and inaccurate.

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What is the correct electron configuration of phosphorus (P)?
O A. 1s22s²2p³3s²3p³
B. 1s²2s²2p 3s²3p³
O C. 1s²2s²2p62d5
OD. 1s²2s22p63s¹3p4

Answers

Answer:

A

Explanation:

Phosphorus has an electron configuration of 1s2 2s2 2p6 3s2 3p3. Another way to write that is [Ne] 3s2 3p3. The [Ne] represents the fact that the beginning of phosphorus' electron configuration is the same as Neon's. so if you add all the superscripts they will give you 15. we didn't use choice d because we have to make the last p halffilled(3, half of the total electron held in p shell ) when we make "s shell 1 " not make it 4 because we are transfering that 1 electron .but nevertheless the correct answer is A.

Can someone help me please?

Answers

Answer:

3 moles Al2O3

Explanation:

See attached image.

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