1. What is the Speed equation?
a. S= D/T
c. A= Fv-lv/T
b. A= lv - FIT
d. S= T/D

Answers

Answer 1

Answer:

A

Explanation:

distance over time is speed's equation


Related Questions

Filtration of wastewater flowing over a surface of land with vegetation and water is a
an artificial wetland
a stabilization pond
a biodegradable treatment
an open aeration pond

Answers

Filtration of wastewater flowing over a surface of land with vegetation and

water is a biodegradable treatment.

Biodegradable substances are those which can be recycled for other uses

such as manure etc. The filtration of the waste water helps to remove

organic materials and pathogens present in it. The organic materials

removed can then be used for other purposes.

The pathogens are then destroyed to prevent the spread of diseases within

the area. The explanation makes biodegradable treatment most appropriate.

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Is this statement true or false?


A compound is a substance made of two or more elements joined in a chemical reaction.



true


false

Answers

The correct answer is False.

This is false I hope this helps goodbye

What state is represented by the sign (s)
liquid
gas
solid
dissolved in water

Answers

solid.

liquid is (l)

gas is (g)

dissolved in water is (aq)

an atom of which of the following elements can form the most bonds?
a. phosphorus
b. sodium
c. oxygen
d.oxygen

Answers

Answer:
A.phosphorus
:)

Aspirin (C9H8O4) is produced from salicylic acid (C7H6O3) and acetic anhydride (C4H6O3):

C7H6O3 + C4H6O3 -----> C9H8O4 + HC2H3O2

(a) How much salicylic acid is required to produce 1.5 x 10^2 kg of aspirin, assuming that all of the salicylic acid is converted to aspirin? (b) How much salicylic acid would be required if only 80% of the salicylic acid is converted to aspirin? (c) What is the theoretical yield of aspirin of 185 kg of salicylic acid is allowed to react with 125 kg of acetic anhydride? (d) If the situation described in part (c) produces 182 kg of aspirin, what is the percentage yield?

Answers

Explanation:

the equation is yes a the line of jointing line passing the ball to is

Na2SO3" represents sodium sulfite. What does the 4 mean in the formula 4Na2SO3? There are four atoms of sodium. There are four atoms of sodium sulfite. There are four molecules of sodium sulfite. There are four elements in sodium sulfite. 7
The World on Turtle's Back" is a creation myth because it focuses on characters whom the Iroquois considered "gods. " is an Iroquoian story about people and animals who talk to each other. Explains how the Iroquois believe that the earth was created. Describes Iroquoian social and cultural values.

Answers

The designation "4" before Na2SO3 simply means that there are four molecules of sodium sulfite.

A molecule is formed when two or more atoms of the same or different elements come together. The formula of the molecule must reflect the number of atoms from which it is formed. The designation "4" before Na2SO3 simply means that there are four molecules of sodium sulfite.

The "The World on Turtle's Back" is a legend creation story. According to this story, the world was created on a giant turtle back. The folktale is common among the  Iroquois Native Americans.

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what is combined to get calcium chloride​

Answers

Calcium chloride can be created by neutralising hydrochloric acid with calcium hydroxide.

Answer:

See below

Explanation:

This is a simple reaction.

Calcium and chlorine molecule are combined to get calcium chloride.

Ca + Cl₂ → CaCl₂

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

17. The choose the answer that is correct about the Earth's mantle.

made of magnesium, iron, and calcium

made of rocky materials and water

made of the same rocky materials as the crust

made mostly of iron and nickel

Answers

it's actually made of silicates and believe it or not magnesium is a silicates so the closest would have to be A made of magnesium, iron, and calcium

What is a mixture ?

How do homogeneous & heterogeneous mixtures differ ?

Answers

1st question: A mixture is when the components of a mixture can be easily separated and that the components each keep their original properties.

2nd question:A phase is any part of a sample that has a uniform composition and properties.By definition, a pure substance or a homogeneous mixture consists of a single phase. A heterogeneous mixture consists of two or more phases. When oil and water are combined, they do not mix evenly, but instead form two separate layers.

Heterogeneous mixtures are not uniform in composition. Examples would be wood or blood. Homogeneous mixtures are uniform through out. Typically you can see through them.

EARTH SCIENCE: PLEASE HELP ME !!! Which tools do astronomers use to determine the effects of collisions between galaxies? Select the two correct answers.(1 point)

computer simulations

print encyclopedia entries

space telescopes

solar system models

Answers

In studying effects of collisions between galaxies, astronomers usually make use of space telescopes.

Astronomy deals with the study of outer space. The study focuses on planets and other celestial bodies. Generally telescopes are used to study outer space. The particular type of telescope that is used depends on the need.

In studying effects of collisions between galaxies, astronomers usually make use of space telescopes.

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why does a oxygen atom form a 2- ion

Answers

Answer:

It's because it has 2 electrons on its outer ring

Explanation:

It has a -2 ion due to it having 2 more electrons than protons making it an overall negative. It's well known in chemistry that the first ring can only hold 2 electrons while the second and furthermore can hold up to 8. But what happens when you have 9? a new ring starts and it would only contain 1 electron.. In our case here it has 2 more electrons than protons and those 2 electrons are located on the outer ring

1. How many covalent bonds can nitrogen form?

2. Which of the following represents a covalent compound?
A. O2
B. CO2
C. Cl2
D. NaCl

3. 2. Nitrogen is a diatomic element with five valence electrons. Create a model of a molecule of nitrogen.

Answers

Answer:

1. 3 covalent bonds

2. CO2

Nitrogen can form three covalent bonds and carbon dioxide  represents a covalent compound.Molecule of nitrogen is attached in image below.

What is a covalent bond?

Covalent bond is defined as a type of bond which is formed by the mutual sharing of electrons to form electron pairs between the two atoms.These electron pairs are called as bonding pairs or shared pair of electrons.

Due to the sharing of valence electrons , the atoms are able to achieve a stable electronic configuration . Covalent bonding involves many types of interactions like σ bonding,π bonding ,metal-to-metal bonding ,etc.

Sigma bonds are the strongest covalent bonds while the pi bonds are weaker covalent bonds .Covalent bonds are affected by electronegativities of the atoms present in the molecules.Compounds having covalent bonds have lower melting points as compared to those with ionic bonds.

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how many molecules are in 122 grams of Cu(NO3)2

Answers

Answer:

3.917 x 10 ^ 23

Explanation:

You just want to use dimensional analysis to solve. So first start with 122g of copper(II) nitrite, and divide by the molecular weight to get it into moles. Then you know that 1 mole = 6.022 x 10 ^23 molecules (Avogadro's Number) so multiply that by your current moles. A hint for these problems always convert what you were given to moles since it is easy to get to a lot of things through them. ** Use the molar mass/molecular weight for going from grams to moles or moles to grams and use Avogadro's number when going from moles to atoms/molecules or reverse.

Hope this helps!

A scientist was in the field when he saw a mineral sample. He wanted to determine the relative hardness of the mineral, so he conducted scratch tests. He summarized his results in a table. A 2 column table with 4 rows. The first column is labeled Mineral with known hardness with entries: Chalcopyrite, pyrite, Orthoclase, Quartz. Second column is labeled Was a scratch produced? with entries: Yes, Yes, Yes, No. What conclusion can you make about the hardness of the mineral?.

Answers

The mineral hardness depends on its resistance to being scratched. Mohs scale is used to determine the hardness of an unknown mineral. The unknown mineral is harder than Orthoclase, but not harder than Quartz.

-------------------------

The hardness of a mineral is its resistance to being scratched or marked on the surface by another material.

Several elements are used to test the hardness of a mineral, like another mineral of known hardness.

Many different scales can be used to identify the mineral. However, the most commonly used is the Mohs scale.

Let us say that you have two minerals. You already know which mineral is one of them and its hardness.

If the unknown mineral scratches the known mineral, means that the first one is harder than the second one.

But if the unknown mineral does not get to scratch the known one, it means they are equally hard, or the known mineral is harder than the unknown one.

In the exposed example, the table must be as follows

    Mineral                     Was a scratch produced?              

Chalcopyrite                               YES

pyrite                                           YES

Orthoclase                                  YES                                          

Quartz                                          NO                                            

Quartz is the hardest of these minerals. Its hardness level is 7 according to the Mohs scale.

Because scratches were produced using Chalcopyrite, Pyrite, and Orthoclase, we can assume that the unknown mineral is harder than these three ones.

However, no scratch was produced using quartz, suggesting that the unknown mineral is between orthoclase and quartz in the Mohs scale.

The unknown mineral is harder than Orthoclase, but not harder than Quartz. It is between 6 and 7 hardness levels.

---------------------------

You can learn more about the Mohs scale at

https://brainly.com/question/198363

https://brainly.com/question/1585664

https://brainly.com/question/10202262

Answer:

I can conclude that the mineral that the scientist found is harder than chalcopyrite, pyrite, and orthoclase, but not harder than quartz. I can also conclude that the unknown mineral is a relatively hard mineral.

Explanation:

edge example 2023

Select the correct answer.
Tropical forests contain dense trees, which allow less sunlight to penetrate. Emergent trees are trees that grow to a height of more than 45 to 55 meters, above the usual height of trees in tropical forests. Which system provides the best possible explanation for why these trees grow to those heights?
A.
shunted growth pattern
B.
homeostasis
C.
due to less exposure to sunlight
D.
phototropism

Answers

B because if 7352x x 62 is 1936393 then u can divide that by 2 so it’s B

Why does liquid move like it does when heated on the right side?

Answers

Answer:Liquids expand for the same reason, but because the bonds between separate molecules are usually less tight they expand more than solids.

Explanation:Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid.

A compound contains 40%carbon, 6.7%hydrogen, and 56.3%oxygen
calculate the molecular formula of the compound, if it’s vapour density is 90. Note that molecular
mass=2 x vapeur density

Answers

180 might be the answer man

A chemist wants to extract the gold from 54.9 g of AuCl3*2H20 *gold(III) chloride dyhydrate) by electrolysis of an aqueous solution. What mass of gold could be obtained from this sample? Answer in units of g

Answers

From the information provided in the question, the mass of gold that can be obtained from this sample is 31.5 g of Au.

Given that the reduction of gold III occurs thus;

Au^3+(aq) + 3e ------> Au(s)

Number of moles of gold(III) chloride dihydrate = mass/molar mass = 54.9 g /339.35 g/mol = 0.16 moles

Number of moles of Au^3+ in  AuCl3.2H20 =  0.16 moles

Now;

1 mole of Au has a mass of 197 g/mol

0.16 moles of Au has a mass of 0.16 moles ×  197 g/mol/1 mole

= 31.5 g of Au.

The mass of gold that can be obtained from this sample is 31.5 g of Au.

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Why can't percent yield be greater than one hundred percent?

Answers

Answer:

Percent yield is the maximum amount of product that can be formed in a reaction. Matter cannot be created or destroyed according to the law of conservation of mass, so you cant have over 100%.

Explanation:

Earth’s layers are determined by their physical properties and chemical composition. In the lesson, you learned about each of Earth’s layers, what the layers are made of, and why they are important to the Earth. In the space below, write about how the atmosphere may be classified. Would it be part of the lithosphere, or a separate layer? Explain your answer.

Answers

Answer:

The Atmosphere Is a separate layer And Also could be classified as the Closest layer

Explanation:

How did the Heisenberg uncertainty principle contribute to the idea that electrons occupy “clouds,” or “orbitals”?​

Answers

How did the Heisenberg uncertainty principle contribute to the idea that electrons occupy "clouds" or "orbitals"? Because the exact position of the electron is not known,it must be assumed that the electron takes up the entire space in an orbital.

How many particles would be found in a 12.7 g sample of ammonium carbonate? Show workkk

Answers

Answer:

7.8286×10²¹ particles

Explanation:

give me brainlist please

When 25.0 g of NaCl is added to 175 g of water, the mass percent (m/m) NaCl is ________. 7.00% 8.00% 12.5% 25.6% 14.3%

Answers

Answer:

12.5%

Explanation:

percent blurf = quantity of blurftotal quantity×100quantity of blurftotal quantity×100

So for percent by mass, both quantities are expressed as mass, and it’s the mass of NaCl divided by the total mass of the solution, then times 100%

mass % NaCl = 25 g/175g×100

mass %NaCl = 14.3%

How do mixtures form?

Answers

Answer:

A mixture is created when two or more different substances are physically combined and can be separated back into its original substances. A chemical reaction occurs when two or more substances are combined to form a new substance and cannot be separated back into its original substances.

Explanation:

Answer:

A mixture is created when two or more different substances are physically combined and can be separated back into its original substances.

Explanation:

Hope it helps

3) The nucleus in a photograph of a cell measures 3 mm across. If the magnification in the photograph is x 500, what is the actual size of the nucleus?​

Answers

Answer:

1500mm oqkwndbdjdhdndjdd

A student pours ammonium nitrate into a container of room temperature water. The student stirs the mixture with a stirring rod and then feels the outside of the container, which is cold to the touch. Which material is part of the system that absorbed heat?

the water

the air

the stirring rod

the container

Answers

The material that absorbs the heat of the system is water owing to its high specific heat capacity.

The specific heat capacity of a substance refers to the amount of heat that is capable of increasing the temperature of 1 Kg of a body by 1 K. The higher the specific heat capacity, the more the amount of heat that the body can absorb without temperature change.

The material that absorbs the heat of the system is water because water has a higher specific heat capacity than all the other materials present.

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The material which is part of the system that absorbed heat is; The water.

Discussion:

According to the question;

Water was initially at room temperature.We know by convention, ammonium nitrate is a cold substance.

In essence, the heat liberated from the system must have been absorbed by the water so that the outside of the container after mixing becomes cold.

This is so because water has a high specific heat capacity.

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In Natural selection, who/what makes the decision about which traits are desirable and get passed to future generations?

please need help asap thank you.

Answers

Answer:

Different alleles and genes determine what gets passed down.

Explanation:

Its a pretty weird/ open ended question, but the alleles that help an organism survive, will be passed down more often because they are more "fit" and can out survive its competitors within a certain species.

What part of the periodic table does the neutrons tell us about the element?

Answers

Answer:

The neutrons tell us if it is an isotope or not, they also hold the atom together.

Explanation:

how many moles of water in 100 grams

Answers

Answer:

There are approximately 5.55 moles

Explanation:

what is an example of force pair​

Answers

he interaction between a baseball bat and a baseball

Other Questions
What is a target audience? Learning Task 1:Look for 5 words related to occupational health and safety. Read the text and write seven the questions.My family is very fond of fi shing. Its a tradition in our family to go fishing once a month. We really like spending our free time outdoors. My friends think that this is anunusual tradition. They think they are not patient enough to do it. Some even say that fi shing is boring. I think they are wrong.We get to the lake early in the morning. First we go to our spot and get ready. Then we take our fi shing rods and cast them. We love coming early in the morning so thatwe can admire the sunrise. The silence around us brings so much peace. When one of us catches the first fish, we wink at one another. We call it the good luck wink. After that each of us always catches fish.Sometimes we organize fishing competitions. Last time I was the winner. I caught thebiggest fish. My father said he had never caught such a big fish. My mother said that I was a great fi sherman. I think my brother was a little bit upset. He was a little jealous at first. Then he told me I had done a great job. I know that I was just lucky that time. What I love most about our family is that we always stick together and support one another. Fishing is a possibility to be together and admire the beauty of nature.There is something that bothers us. All the time we get there we fi nd a lot of litter. We really cannot understand why people are so irresponsible. It is our duty to preserve nature, not to destroy it. We always clean the place. But every time we get back there we fi nd it dirty. This makes me very sad.TREBUIE SA ALCATUIESC 7 INTREBARI 1. List the ketose carbon(s) that is(are) reduced with NaBH4. Ms.Gmez ran 3/5 of a mile in 5 minutes. Mr. Hernndez ran 3/5 of a mile in 3 minutes. How far did Ms gomez and mr Hernandez each run in 1 minute?Show work or explain What is the least common denominator of this equation 19. A beach ball is rolling in a straight line toward you at a speed of 9 m/sec. Its momentum is 3 kg'm/sec.What is the mass of the beach ball? moss - 0.33aroto from 10mle to speed of 14 m/s The mass of the bicycle What is the estimated difference between 7 6/115 13/15?NO LINK OR FILESSSS PLZZZZZZZZZZZZ why does tim burton use high key lighting How do Maria Elisa's and Mami's views on money compare? Do you think a person is ever entitled to receive or get something just because they feel they deserve it? Explain your response. Which concern of the colonists led to the American Revolution?Question 1 options:Opposition to British tax policiesFear of attacks by American IndiansIncreasing immigration from countries other than BritainDesire for greater religious freedomQuestion 2 (1 point) What law prohibited the colonist from moving West of the Appalachian Mountains after the French and Indian War?Question 2 options:Stamp ActIntolerable ActsProclamation of 1763Townshend ActsQuestion 3 (1 point) Why were tax laws like the Stamp Act, Sugar Act, and Townshend Acts passed by England?Question 3 options:To help the colonist become more independentTo help colonist make a better life for themselvesTo pay off war debt from the French and Indian WarTo ensure that their self-government workedQuestion 4 (1 point) Why were colonist upset about the tax laws?Question 4 options:They wanted to get rid of MercantilismThey lacked representation in ParliamentThey did not have the finances to pay the taxesThey wanted separation of church and stateQuestion 5 (1 point) What is considered the first battle of the American Revolution?Question 5 options:Battles of Lexington & ConcordBattle of YorktownBattles of SaratogaBattle of TrentonQuestion 6 (1 point) What battle is considered the turning point of the American Revolution because the victory encouraged the French to join the American side?Question 6 options:Battles of Lexington & ConcordBattle of Bunker HillBattle of YorktownBattles of SaratogaQuestion 7 (1 point) During the winter of 1777-1778, Washington and his army faced many hardships. What were they? Question 7 options:DiseaseHarsh WeatherStarvationAll of the aboveQuestion 8 (1 point) According to the Declaration of Independence, from what SOURCE does the government get its power?Question 8 options:the kingthe presidentthe consent of the governedthe militaryQuestion 9 (1 point) What was the purpose of the Declaration of Independence?Question 9 options:To declare war on FranceTo declare the reasons the colonist wanted to separate from EnglandTo outline the structure for a new governmentTo describe the new rights Americans would haveQuestion 10 (6 points) Match the correct person to their description. Question 10 options:Leader of the Boston Tea Party and the Sons of Liberty.He led the Continental Army during the American Revolution.He wrote "Common Sense" to encourage the colonies to break from England.He was the 1st patriot killed at the Boston Massacre.He wrote the Declaration of Independence in 1776.He helped as a diplomat in Europe to negotiate the Treaty of Paris (1783). 1. Thomas Jefferson2. George Washington 3. Samuel Adams4. Thomas Paine 5. Crispus Attucks6. John Adams Question 11 (1 point) Why did the Boston Tea Party occur?Question 11 options:because the British loved tea and the colonist knew this because the rebels thought tea was only suppose to be for the Navy because the British refused to lift the high tax on teathe sons of liberty found they were bored and decided to protestQuestion 12 (1 point) Colonist formed different protest groups to provoke the British and fight for independence. Which of the following is the name for one of those groups? Question 12 options:Sons of Liberty Continental Children Freedom FightersRevolutionary Rebels Question 13 (3 points) Match the correct description to its term. Question 13 options:colonists were required to house troops and feed themplaced new taxes and took away some freedoms from the colonists. import tax on molasses, sugar, wine & coffee1. Sugar Act2. Quartering Act3. Townshend Act ASAP!!!!!!!! Parts of a Microscope: Use the following word bank to identify the following parts of the microscope. Body TubeOcular Lens ( eye piece)Revolving Nose piece ArmObjectives (three of these) DiaphragmStage clipsStageLight SourceBaseCourse Adjustment KnobFine Adjustment Knob help help help help meeee Read this excerpt from The Miracle Worker.ANAGNOS: So. You are no longer our pupil, we throw you into the world, a teacher. If the child can be taught. No one expects you to work miracles, even for twenty five dollars a month. Now, in this envelope a loan, for the railroad, which you will repay me when you have a bank account. But in this box, a gift. With our love.(ANNIE opens the small box he extends, and sees a garnet ring. She looks up, blinking, and down.)Which of these statements provides the best summary of the scene? A Anagnos explains his expectations of Annie, offering her money and a farewell present.B Anagnos offers Annie a garnet ring, and he tells her that she might not succeed at teaching.C Anagnos presents Annie with a loan and a ring that is worth more than she will earn in six months of teaching.D Anagnos shows his generosity as he gives his wise advice and his expensive present to Annie. An astronomical unit (A.U.) is 1 point A) a term for defining the luminosity of a star B) the average distance from the Earth to the sun C) the average distance of any given planet to the sun D) equal to a light year The equation below can be used to calculate a change in gravitational potential energy. What units must be used for h? Give the full name, not the abbreviation.e=m x g x h (1) Starting a new school is hard for many students. (2) You have to get over the first day jitters. (3) The nervous feeling you get doesn't go away all at once. (4) It may be well into the school year before you get comfortable. (5) You have to make new friends. (6) Making new friends can be just as difficult. (7) Many people going to a new school are reserved and too shy to make new friends. (8) Making new friends is the most important part of fitting into a new school. (9) It's easier to face a new challenge if you have people there to support you.5Which is the best way to rewrite sentence 5? A. For example, you have to make new friends. B. Then, you have to make new friends. C. In the same way, you have to make new friends. D. In contrast, you have to make new friends. Please help with this I will mark you as brainliest Who is the narrator in Shawshank? What 'job' does he have there? What are the only things herefuses to deal with?