when is an object in free fall

Answers

Answer 1

Answer:

a free-falling object is an object that is falling under the sole influence of gravity. That is to say that any object that is moving and being acted upon only be the force of gravity is said to be "in a state of free fall." Such an object will experience a downward acceleration of 9.8 m/s/s.


Related Questions

I WILL GIVE U BRAINLIEST IF U HELP ME!!!!!

Answers

Answer:

your awnser is B cutting back

2) A student was working on an investigation to measure the relative activity
of an enzyme at various pH values. He collected the following data:
pH 2, enzyme activity 10; pH 8, enzyme activity 50;
pH 12, enzyme activity 10; pH 4, enzyme activity 20;
pH 6, enzyme activity 40; pH 10, enzyme activity 40

Answers

Answer:

THE LAST ONE

Explanation:

why is diamond hard​

Answers

The outermost shell of each carbon atom has four electrons. In diamond, these electrons are shared with four other carbon atoms to form very strong chemical bonds resulting in an extremely rigid tetrahedral crystal. It is this simple, tightly-bonded arrangement that makes diamond one of the hardest substances on Earth.

Answer: Diamond is hard due to its giant covalent lattice and it has many strong covalent bonds.

Explanation:

PLEASE ANSWER
A train travels at an average speed of 25 miles per hour. How long does it take the train to travel 2000 miles

Answers

Answer:

80 hours. 2,000 ÷ 25 = 80

(GIVING BRAINLIEST)
Balance each of the following chemical equations below

Answers

Explanation:

A.

AgNO₃ + KCl → AgCl + KNO₃ (Already Balanced)

B.

H₂O + SO₃ → H₂SO₄ (Already balanced)

C.

2KI + Cl₂ → 2KCl + I₂

D.

2NaHCO₃ → Na₂CO₃ + H₂O + CO₂

E.

Zn + 2HCl → ZnCl₂ + H₂

F.

BaCl₂ + Na₂SO₄ → BaSO₄ + 2NaCl

G.

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

H.

2Al + 3CuCl₂ → 2AlCl₃ + 3Cu

I just need an answer for question 3,4 and 5. thank you so much. ​

Answers

Number 3,In 1913,Neils Bohr,a student of Rutherford’s developed a new model of the atom.number 5,the chemical elements are arranged in order of increasing atomic number.elements in the same group have similar chemical properties. Hope this helps!

What satement is true the about atomic mass?

Answers

Answer:

Explanation:

A. It can be greater than the atomic number

Wich statement best describes the progress of science

Answers

Answer:

Scientific ideas are changed when better ones are found.

Explanation:

Why is it important for you to know the properties and chemical formulas of molecular and ionic compounds? How will this affect your ability to choose one product over another or make decisions about whether to use a certain substance like bleach or drain cleaner? How has learning about atomic structure and compounds changed your understanding of the world around you?

Answers

Answer:

See explanation

Explanation:

It is important to know the properties and chemical formulas of ionic and molecular compounds because, knowledge of the properties of a compound aids you in deciding how to use the compound, how to store it and how dangerous it can be. Knowledge of its formula is the first step towards identifying its properties since most chemicals occur in groups having similar chemical/physical properties.

Knowledge of the chemical properties and formula of bleach and drain cleaner will help you to decide which product is a better cleaning agent based on its chemical composition. This will help you as the user to make  better decision.

Learning about atomic structure has made me to understand that all matter in the universe are composed of atoms. indeed, certain occurrences in nature can only be explained on the basis of atoms involved.

Can someone check if I did this right pls

Answers

Answer:

It's right

Explanation:

3. Except for the bolt, note the difference between the calculated volumes and the volume
found by the displacement method. Which method is more accurate? Why?

Answers

Answer:

Yes Because the calculated volume is more accurate because you are able to measure the smaller dimensions.

~Apex lab

1.The diagram below shows the stages of a land feature being formed over
time.
Stage 1
Stage 2
Stage 3
How has the area been
reshaped over time?

Answers

Answer:

I think....I'm not sure......the plats of earth shifting?

Explanation:

A block weighing 13.15 grams has sides of 11.5 cm, 5.75 cm, and 8.44 cm. What is the density of the block in g/cm?
0.519 g/cm3
0.0236 g/cm3
42.4 g/cm
1.95 g/cm​

Answers

Answer:

B. or .0236

Explanation:

Multiply the 3 sides to get 558.095, then divide the mass and volume to get .0236

You crumple a piece of paper in your hands. Not all of the kinetic energy from your hands is used to crumple the paper. Where does the rest of the energy go?
A. It is transformed into sound energy.
B. It is transformed into light energy.
C. It is transformed into electrical energy. D. It is transformed into magnetic energy.​

Answers

Answer:

A

Explanation:

When you crumble a piece of paper it make a sound plus i just did on apex

When we crumple a piece of paper in our hands, a part of the energy is transformed into sound energy. Therefore, option (A) is correct.

What is sound energy?

Sound transmits through the medium such as liquids, gases, and plasma in the form of longitudinal waves or compression waves. It requires a medium to propagate as it can travel through solids as both longitudinal and transverse waves.

Transverse sound waves exhibit waves of alternating shear stress perpendicular to the direction of propagation while Longitudinal sound waves exhibit alternating pressure deviations leading to compression and rarefaction.

Generally, waves move matter up and down but do not carry along.  When we crumple the paper with our hands the kinetic energy of our hands is used to deform the paper but at the same time, we can listen to some sound which indicates that some energy is transformed into sound energy.

Learn more about sound, here:

brainly.com/question/21995826

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Urgent please help!!
Which of these is a chemical property of a substance?
A) texture
B) ductility
C) reactivity
D) conductivity

Answers

Answer:

reactivity

Explanation:

2. What type of bonding would be expected between the following atoms?
a. Li and F
c. I and Br
b. Cu and S
d. S and O

Answers

a.) covalent
c.) covalent
b.) ionic
d.) covalent

Considering the definition of covalent and ionic bond, the type of bonding that would be expected between the following atoms is:

Li and F: Ionic Bond I and Br: Covalent Bond Cu and S: Ionic Bond S and O: Covalent Bond

The covalent bond is the chemical bond between atoms where electrons are shared, forming a molecule. Covalent bonds are established between non-metallic elements. These elements have many electrons in their outermost level (valence electrons) and have a tendency to gain electrons to acquire the stability of the electronic structure of noble gas.  

An ionic bond is produced between metallic and non-metallic atoms, where electrons are completely transferred from one atom to another. During this process, one atom loses electrons and another one gains them, forming ions. Usually, the metal gives up its electrons forming a cation to the nonmetal element, which forms an anion.

Taking into account the previous definitions, it is first necessary to know if the elements are metallic or non-metallic:

Lithium Li: Metallic atoms Flour F: Non-metallic atoms Iodine I: Non-metallic atomsBromine Br: Non-metallic atomsCopper Cu: Metallic atoms Sulfur S: Non-metallic atoms Oxygen O: Non-metallic atoms

Now you can determine the type of bond of the following pairs of elements:

Li and F: Metallic atoms - Non-metallic atoms: Ionic Bond I and Br: Non-metallic atoms - Non-metallic atoms: Covalent Bond Cu and S: Metallic atoms - Non-metallic atoms: Ionic Bond S and O: Non-metallic atoms - Non-metallic atoms: Covalent Bond

Learn more:

https://brainly.com/question/7869439?referrer=searchResultshttps://brainly.com/question/14526070?referrer=searchResultshttps://brainly.com/question/2468807?referrer=searchResultshttps://brainly.com/question/2468807?referrer=searchResults

How much does a sample of C6H12O6 weigh if it contains 1.7 x 10^28 hydrogen atoms?

Answers

Answer:

Explanation:

Glucose  has    6  number  of  carbon  atoms,  12  atoms  of  oxygen  and   6  atoms  of  oxygen

The  total  number  of  glucose  atom is  24  atoms

The  atom  of  hydrogen is twice  that  of   carbon  

that  is (6.02 x10^22) x2=1.204 x10^23atoms

the  number  of  moles  of  hydrogen  is   solved  as   follows

1mole  =  6.02x10^23 atoms  what   about  1.204 x10^23=

{(1.204x10^23)/(6.02 x10^23)}=0.2moles

The  moles  of  glucose

1   atom  of   glucose=  6.02 x10^22  x4 =2.408 x10^23  atoms

moles= { (2.48 x10^23)/(6.02  x10^23)}=0.41moles

Hope this helped :)

What volume of O2 would be required to react with 4.6 grams of Na

Answers

Volume of O₂ = 1.12 L

Further explanation

The reaction equation is the chemical formula of reagents and product substances  

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products  

Reaction

4Na+O₂ ⇒ 2Na₂O

Ar Na = 23 g/mol

mol Na :

[tex]\tt mol=\dfrac{4.6}{23}=0.2[/tex]

mol O₂ :

[tex]\tt \dfrac{1}{4}\times 0.2=0.05[/tex]

Assume at STP (0 C, 1 atm), 22.4 L for 1 mol , then volume of O₂ :

[tex]\tt 0.05\times 22.4=1.12~L[/tex]

Alien Periodic Table

Answers

Answer:

IT IS REAL

Look it up

Answer:

look close the answers are circled in blue

the answer to number 2 is element #14, Yorkel

How can we gather more evidence about weather lava or water formed the channel on Mars

Answers

you can do that by scientific studies

Eugene describes the physical property of a material as “sweet and floral.” What physical property of the material is Eugene most likely observing?

boiling point
shape
hardness
odor

Answers

Answer:

D odor

Explanation:

Answer: odor

Explanation:

Most metals are NOT ____ ? Liquid at room temperature, ductile, malleable, good conductors of heat and electricity.

Answers

Liquid at room temperature

Most metals are not liquid at room temperature. Therefore, option A is correct.

Most metals are not liquid at room temperature, except for a few specific exceptions such as mercury (Hg) and gallium (Ga). These metals have relatively low melting points, which allows them to exist in a liquid state at or near room temperature.

The majority of metals, however, exhibit a solid state at room temperature. This solid state is characterized by a regular arrangement of atoms or ions in a crystal lattice structure. The strength of metallic bonds holds the atoms together, giving metals their solid and rigid form.

To learn more about the metal, follow the link:

https://brainly.com/question/29404080

#SPJ6

what best explains the cause of strong winds on a island?​

Answers

Lack of objects that could be used to slow down the winds, I.e. lack of trees or other natural barriers

Which periodic gruop has the smallest atomic radiis

Answers

Answer:

Helium

Explanation:

what is the estimated digit in the number 0.0643

Answers

Answer:

3

Explanation:

Answer:

There are 3 estimated digits.

Explanation:

An object is either copper or brass. The density of copper is 8.96g/ml. The density of brass is 8.73g/mL. I find that my object is 10.08
and has a volume of 1.15mL. What is my object made of?
Your answer:
O Copper
O Brass
O Cannot tell from the information given

Answers

I like pp hehehehehe hehhe
Penis in my butt.......

WHAT MAKES ELECTRONS JUMP TO OTHER ORBITS AROUND THE NUCLEUS THEN FALL AGAIN​

Answers

Answer:

Explanation:

Electrons absorb energy in photons. This makes the eclectron excited. An electron in an excited state can release energy and fall to a lower orbit

Which pair of atoms are isotopes of each other?
a
oxygen-16 and oxygen-18
carbon-14 and nitrogen-14
iodine-131 and iodine-131
e
d
radium-222 and radon-222

Answers

Answer:

b sorry if im wrong

Explanation:

hope it helped

Plz help!

Covalent bonding is referred to as “sharing” electrons. Is it really sharing? Why or why not?

Answers

Answer:

yes

Explanation:

because they will bond in order to gain more stability which is gained by forming a full electron shell

Which of the following electromagnetic waves has the most energy on the electromagnetic spectrum?
O A Infrared
O B. X-ray
O C. Gamma
O D. Radio

Answers

Answer:

Gamma rays

Explanation:

The waves with higher frequencies will have higher energies and gamma waves have the highest frequencies on electromagnetic scale ,because of this reason gamma waves is the answer.

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How does the figurative meaning of a word or phrase help a reader?A It helps the reader to understand that the word is positive.B It helps him or her to learn the dictionary definition of a word.C It helps to paint a picture in his or her mind.D It helps him or her to find the literal meaning of a word. Find the value of X: 3x (-35) = 2x Of the 600,000 American soldiers killed in the Civil War, the majority diedA. in battle.B. in training.C.from disease.D. from wounds. Which of these is an opinion?Press enter to interact with the item, and press tab button or down arrow until reaching the Submit button once the item is selectedA Alex Johnson came up with a clever way for people to learn how hard it is to use a wheelchair.B The ADA states that doorways must be wide enough for wheelchair users to pass through.C Alex Johnson invited lawmakers to use a wheelchair for a day.D Some older buildings have doorways that are too narrow for a wheelchair to pass through. Solve the system of equations. show your work/explain how you found your answer.2x-4y=10 x+5=40 Failure to______after exercising may result in dizziness or sudden faintingA. warm upB. cool downC. stretchD. rest What is the close repetition of middle vowels?dictionsimilemetaphorassonance What does ethos mean? A. Character B. Empathy C. Reason and judgement D. Word choice Which of the following is an example of negative peer pressure? (multiple answers)A. Complimenting you on your style B. Asking you to help with a projectC. Encouraging you to smoke cigarettes D. Encouraging you to eat healthfully HURRYY PLS!!!!Which of the following represents an accurate description that applies to both India and China during the classical era? Which postulate or theorem proves that these two triangles are congruent?A. ASA Congruence PostulateB. AAS Congruence TheoremC. HL Congruence TheoremD. SAS Congruence Postulate can you please hop off my questions if all your going to do is try to tell me what i can and cant do. So hop off please. i mean you would make a good class president or whatever. but, please stop trying to judge me, or tell me what to do , i dont listen to know one but, myself. Like, im not trying to be rude or anyhing im just tired of other people trying to rule me, or run my life. like who else is with me. Good time management skills help keep stress levels low. Which action is most important when students are trying to manage their time? Choose the correct answer below.making choicesalways following their schedulewearing a watchchecking their day planner HELP ASAPIn 2018, Supreme Court Justice Neil Gorsuch, who was appointed by PresidentDonald Trump, sided against the Trump administration in a major immigrantdeportation case. His ruling came as a surprise to some observers, since animmigration crackdown had been the Trump campaign and presidency's signaturepolicy issue. Historically, however, it was not unusual, reflecting a tradition ofjudicial:A)expansion, in which even conservative justices end up favoring increases injudicial power.B)conservatism, in this case related to preservation of the Constitution's checksand balances.C)independence, since justices are more free than leaders of other branches topursue their own ideas about what is right.D)activism, which involves justices consistently striking out in directions differentfrom those who appointed them. Which of the following is NOT a part of your health triangle *O Family healthO mental/emotional healthO physical healthsocial health Choose all the answers that apply.Which of the following are physical properties?flammabilityhardnessmagnetismboiling pointdensity Which word could best replace secret without changing the meaning of the sentence?They quietly hid in the darkened closet in a secret attempt to surprise their new babysitter.A, irrevocableB, pedanticC, clandestineD, despondent PLEASE HELP AS FAST AS YOU CAN ASAP DUE IN 30 MINUTES!!!!the prism is made up of unit cubes. the side length of the unit cube is 1/4 inchwhat us the volume of the prismA. 3/8B. 8C. 24D. 1/64please explain as well Match the empire with one of its famous leaders:1. Aksum Caesar Augustus 2. Persia Hammurabi 3. Assyria Ezana 4. Greece Cyrus 5. Nubia Piankhi 6. Babylon Shalmaneser III 7. Rome Alexander what is the geography makeup of brazil in 4 sentences?