4. A 55 kg sled is sliding down a hill. At the 7 m mark, it has a velocity of 1.8 m/s. What is
the mechanical energy of the system?

Answers

Answer 1

Answer:

89.1Joule Because when Multiply The Half Of Mass With The Square of Velocity we Get We Get Eighty nine Point One


Related Questions

matter with no definite volume and no definite shape is a what?

Answers

The state of matter with no definite volume and no definite shape is gas.

What is matter?

Matter is anything that has mass and occupies space.

There are three main physical states in which matter can exist. Each of these physical states has unique properties that are used to identify them.

The three physical states of matter are:

Solids - solids have an ordered arrangement of molecules. They have a definite shapes and volumeLiquids - Liquids do not have a definite shape as a result of a weaker force of attraction between the molecules. However, they have a definite volume.Gases - gases do not have a definite shape or volume as a result of negligible forces of attraction between their molecules.

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What is 2x+83-(456x56)^2

Answers

Answer: -207936x>112+2x+83

Draw the Lewis structure of CH3CCH and then choose the appropriate set of
hybridization states for the three central atoms. Your answer choice is independent of the orientation of your drawn structure.

Answers

Lewis structure of CH₃-CCH and then hybridization states for the three central atoms is sp³sp³ and sp

A Lewis structure is a very simplified representation of the valance shell electron in a molecule and it is used to show how the electron are arranged around individual atom in a molecule and in propyne there is 3 carbon and in that one carbon is triply bonded so this triply bonded carbon is sp and 2 singly bonded are sp³ hybridized

And the Lewis structure of propyne are

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Reward is 30 points!!!! PLease help.

Answers

Can’t see the photo

Write the balanced NET ionic equation for the reaction when NH₄Cl and Cu(C₂H₃O₂)₂ are mixed in aqueous solution.

Answers

The net ionic equation of the reaction as it is shown have been given here by the equation; [tex]Cu^+(aq) + Cl^-(aq) ---- > CuCl(s)[/tex]

What is net ionic equation?

The term net ionic equation has to do with the equation that shows the manner in which we are able to convey the information that concerns the ions that do not undergo a change in the reaction.

In this case, we have the reaction that occurs between ammonium chloride and copper II acetate which would produce a copper I chloride and an ammonium acetate product. The net ionic equation would now be;

[tex]Cu^+(aq) + Cl^-(aq) ---- > CuCl(s)[/tex]

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PLEASE HELP
Step 3: Apply the scaling factor to the
empirical formula.
The scale factor is 5 and the empirical
formula is CH2O. What is the molecular
formula?

Answers

The molecular formula is (CH2O)5 when the scale factor is 5 and the empirical formula is CH2O.

Considering the question given above, the following data were obtained:

Empirical formula is CH₂O

Molar mass of compound = 150 g/mol

Scaling factor (n) =?

Empirical formula × n = molar mass

[CH₂O]n = 150

[12 + (2×1) + 16]n = 150

[12 + 2 + 16]n = 150

30n = 150

Divide both sides by 30

n = 5

Therefore, the scaling factor is 5

A scale factor is a ratio between corresponding measurements of an object and a representation of that object.In chemistry, the empirical formula of a chemical compound is the simplest whole-number ratio of atoms present in a compound. .

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Answer:

The scale factor is 5. The formula is CH2O.

Multiply each by 5.

So:

C (there is only one)= 1×5

H (there are 2)= 2×5

O(there is only one)= 1×5

Equalling= C5H10O5

A galvanic (voltaic) cell consists of an inert platinum electrode in a solution containing 1.0 M titanium(III) ion and 1.0 M titanium(II) ion, and another inert platinum electrode in a solution containing 1.0 M iron(III) ion and 1.0 M iron(II) ion, connected by a salt bridge. Calculate the standard potential for this cell at 25°C . Standard reduction potentials can be found in the standard reduction potentials table.
∘cell=

Answers

The standard potential for the galvanic cell at 25°C is 1.98 V.

What is a galvanic cell?

A galvanic cell or an electrochemical cell is a cell that converts the chemical energy of the reactions occurring within it to electrical energy.

The galvanic cell is able to convert chemical energy to electrical energy as a result of the redox reactions occurring within the cell.

The standard potential for the given galvanic cell at 25°C is calculated as follows

Standard reduction potentials:

Ti³⁺ + 3e⁻ ---> Ti; E° = − 1.21 V (anode)

Fe³⁺⁺+ e⁻--> Fe²⁺ ; E° = 0.77 volts (cathode)

Eºcell = 0.77 V - (-1.21 V)

Eºcell = 1.98 V

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I need help in finding my percentage error answer. What would be my answer?

Answers

The percentage error of the above question is -2.03%.

What is percentage error?

The percentage error is defined as the approximation error which is present in data value is the discrepancy between an some approximation and exact value to it. This error can also be expressed as a relative error or an absolute error. An approximation error can occur because of the measurement error or computing machine precision.

Make sure in numerator the units off all the digit must be same.

Mathematically, we defined as

Percentage error = (change in value / original value) × 100

(-267.6 - (-273.15) )

= 0. 020

= 2. 020/ (-273.15) × 100

= -2. 03 %

Thus, we concluded that the percentage error of the above question is -2.03%.

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A curry chicken soup recipe calls for you to combine all of the main ingredients, seasonings, in 5 cups (1175 g) of chicken broth (Cs = 3.60 J/gx°C) simmering at 90.0°C until the potatoes are tender.
Coconut milk (Cs = 3.98 J/gx°C), which is initially at 25.0 °C, is added and stirred until mixed.
How many grams of coconut milk was added if the final temperature of the soup was found to be 72.0 °C?
(Answer to a whole number and don't forget your units)

Answers

The amount of coconut milk added if the final temperature of the soup was found to be 72.0 °C is 430g

The amount of coconut milk added can be found using the equation:

m₁C₁ΔT₁ = m₂C₂ΔT₂

Where m is the mass, C is the specific heat, and ΔT is the change in temperature.

In this equation, m₁ is the mass of the coconut milk, C₁ is the specific heat of the coconut milk, ΔT₁ is the change in temperature of the coconut milk, m₂ is the mass of the soup, C₂ is the specific heat of the soup, and ΔT₂ is the change in temperature of the soup.

We are given the specific heat of the coconut milk and the soup, the change in temperature of the soup, and the final temperature of the soup. This allows us to solve for the mass of the coconut milk, which is m₁.

m₁ = m₂C₂ΔT₁/C₁ΔT

m₁ = (1175 g)(3.60 J/g°C)(72.0°C - 90.0°C)/(3.98 J/g°C)(72.0°C - 25.0°C)

m₁ = -427 g

This answer is impossible because the mass of a substance cannot be negative. By solving it in other means we get,

The amount of coconut milk added can be found using the equation

ΔQ = mCΔT

ΔQ is the heat transfer, m is the mass, C is the specific heat, and ΔT is the change in temperature.

We are given the specific heat of coconut milk (Cs = 3.98 J/g°C), the initial temperature of the coconut milk (25.0°C), the final temperature of the soup (72.0°C), and the heat transfer of the soup (ΔQ = 1176 * 3.6*47 = 81168 Joules).

Therefore, the equation becomes:

81168 = m(3.98)(47)

m = 81168 / (3.98 * 47)

m = 81168 / 189.06

m = 429.6 grams

The amount of coconut milk added was 429.6g which could be rounded off as 430g

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Which of the following nuclear reactions represents natural decay?

Answers

Radiation is produced when unstable or radioactive atoms through the process of becoming stable. We refer to this process as radioactive decay over time. Two protons and two neutrons are lost from the nucleus as a result of alpha decay.

What is nuclear decay reaction ?

An unstable nucleus releases radiation and changes into the nucleus of one or more additional elements during a nuclear decay process, also known as radioactive decay.

The ensuing offspring nuclei are less energetic and heavier than the parent nucleus that underwent decay, making them more stable.

For example, by producing an alpha particle, the unstable uranium-238 nucleus naturally decays into a thorium-234 nucleus. The most prevalent radioactive decay processes are decay, emission, decay, positron emission, and electron capture.

Thus, Radiation is produced when unstable or radioactive atoms through the process of becoming stable.

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Which elements have an ionization energy greater than that of silicon?

Answers

Answer:

Carbon has the greatest ionization energy in that group.

Explanation:

I don't know if this is helpful but my teacher used ice cream to explain ionization energy to us. Imagine an ice cream cone standing up straight, ionization energy decreases as you go down, just like how the ice cream cone gets smaller as you go down cause the base of the cone is just a small tip. If you imagine an ice cream cone falling over then it could now be sideways and ionization energy increases from left to right across the periodic table, just like the ice cream cone begins small at the tip and as you go to the right it increases in size.

If 18.5 g of NaOH is added to 0.800 L of 1.00 M Zn(NO₃)₂, what mass in grams of Zn(OH)₂ will be formed in the following precipitation reaction? 2 NaOH(aq) + Zn(NO₃)₂(aq) → Zn(OH)₂ (s) + 2 NaNO₃ (aq)

Answers

The mass of the zinc II hydroxide produced is 22.77 g.

What is stoichiometry?

It is common that we use the stoichiometry of a reaction to be able to obtain the parameters that have to do with the reaction. In his case, we already have the balanced reaction equation of this reaction and this is our basic stock in trade for the task that is ahead of us.

Now we have; 2 NaOH(aq) + Zn(NO₃)₂(aq) → Zn(OH)₂ (s) + 2 NaNO₃ (aq)

Number of moles of the sodium hydroxide =  18.5 g/40 g/mol = 0.46 moles

Number of moles of the zinc II nitrate solution = 1.00 M * 0.800 L = 0.8 moles

If 2 moles of the sodium hydroxide reacts with 1 mole of the zinc II nitrate

0.46 moles  of the sodium hydroxide reacts with; 0.46 moles * 1 mole/ 2 moles

= 0.23 moles

Hence the sodium hydroxide is the limiting reactant.

Thus;

2 mole of sodium hydroxide produces 1 mole of zinc II hydroxide

0.46 moles of sodium hydroxide produces 0.46 moles  * 1 mole/2 moles

= 0.23 moles

Mass of the  zinc II hydroxide =  0.23 moles * 99 g/mol

= 22.77 g

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Which of the following reactions demonstrates a synthesis reaction?
A. Zn + 2HCl > ZnCl2 + H2
B. C+02 > CO2
C. Mg + H2SO4 > MgSO4 + H2
D. 2NaCl > 2Na + Cl2

Answers

Option is the right response because it indicates a synthesis reaction (D) 2Na+Cl2 > 2NaCl.

What is a Synthesis Reaction?

Synthesis reactions are those that take place when two distinct molecules or atoms interact to create a new chemical or molecule. Whenever a synthesis reaction takes place, energy is often released, as well as the process is exothermic. whenever two or more components (compounds or elements) mix to create a new product, a compound having new qualities. They synthesize to create a new material, which is why the process is known as a synthesis.

Why is synthesis reaction important and its functions?

Bonds connecting two substances are formed during synthesis reactions. As a result, you may want to think about synthesis reactions as processes that help your body create things. Because of this, we can see that synthesis reactions are crucial for both body growth and tissue healing.

A descriptive statement over ranges of selected variables for input and output is the basis for functional synthesis (FS), which tries to produce an implementation. As is customary, FS tasks were formulated as "all exists" equations, wherein input variables are quantified across the board & output variables are quantified existentially.

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Answer:

C+02 > CO2

Explanation:

hope this helps-

Which cation shows the correct charge?

a. Mg+

b. K3+

c. Zn+

d. Ca2+

e. Na2+

Answers

Ca2+ as calcium can leave 2 electrons to have an octet config.

The specific gravity of iron is 7.87, and the density of water at 4.00 ∘C is 1.00 g/cm3 . You can use this information to find the density of iron.

Find the volume occupied by 6.50 g of iron

Answers

The volume occupied by the given mass of iron is 0.83 [tex]cm^{3}[/tex].

What is the specific gravity?

The term specific gravity has to do with the ratio of the density of an object to the density of water. We must note that density of water is the bench mark that have been used to obtain the densities of every other substances hence it was assigned a density of 1.00 g/ [tex]cm^{3}[/tex].

Now we know from the question that;

Density of water =  1.00 g/ [tex]cm^{3}[/tex]

Specific gravity of iron = 7.87

Mass of the iron = 6.50 g

Density of iron = Specific gravity * density of water =  7.87 * 1.00 g/ [tex]cm^{3}[/tex]

=   7.87 g/ [tex]cm^{3}[/tex]

Given that;

Density = mass/volume

volume = mass/Density

volume = 6.50 g/7.87 g/ [tex]cm^{3}[/tex]

Volume = 0.83  [tex]cm^{3}[/tex]

We can see that from the calculations, the density of the iron as is clear in the procedure is 7.87 g/cm3  and it has a volume of 0.83 cm3 .

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In silicon dioxide how many covalent bonds are there between each silicon atom with oxygen atoms?​

Answers

In silicon dioxide the number of the covalent bonds are there between each silicon atom with oxygen atoms is four.

In the silicon dioxide the total number of covalent bond is four between the each silicon atom with the oxygen atoms. The covalent bond is form when the two atoms mutually share the electrons and bond together. the compound which form covalent bond is called as covalent bond. the silicon dioxide form covalent bond because the electronegative difference between silicon and the oxygen is not much.

Thus, In silicon dioxide the number of the covalent bonds are there between each silicon atom with oxygen atoms is four.

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Consider the following equilibrium system:
2HI ⇌ H2 + I2
At constant temperature and volume, more I2 is added to the above equilibrium. A new state of equilibrium results from a shift to the:

A) Left with a net decrease in [H2]
B) Left with a net Increase in [H2]
C) Right with a net decrease in [H2]
D) Right with a net increase in [H2]

Answers

Consider the following equilibrium system:

2HI ⇌ H₂ + I₂ At constant temperature and volume, if the more I₂ is added to the above equilibrium. The equilibrium results from shift to : left with a net decrease in [H₂].

The balanced reaction is given as :

2HI ⇌ H₂ + I₂

if we add more  I₂ in the given equilibrium , then equilibrium will to left side and with the net decreases of  [H₂]. the production HI increase.

Thus, Consider the following equilibrium system:

2HI ⇌ H₂ + I₂ At constant temperature and volume, if the more I₂ is added to the above equilibrium. The equilibrium results from shift to : left with a net decrease in [H₂].

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what will the kids feet be webbed or have paws the mom has webbed feet the dad has paws the mom has capital f and lowercase f the dad has two lowercase f the picture is the punnett square​

Answers

Answer:

2 of the children's feet will be webbed, and the other 2 will have paws.

Explanation:

The dominant genes of the Mother will override the recessive genes of the Father, since there isn't 2 of the recessive genes, except for on the other 2 children. If there was a dominant gene, it would have at least 1 capital letter, and that dominant gene would prevent the recessive (lowercase) letter from showing up.

What does the study of analytical chemistry include? • Blood • Organic Compounds and Elements • Crystal Structures •Biological Compounds

Answers

The study of analytical chemistry includes Crystal Structures of matter. Therefore, option (C) is correct.

What is analytical chemistry?

Analytical chemistry can be described as the studies and uses of instruments and methods to identify, separate, and quantify matter. In practice, identification, or quantification can constitute the analysis or be combined with another method.

Qualitative analysis is related to identifying analytes, while quantitative analysis determines the amount or concentration. Analytical chemistry contains classical chemical methods and instrumental methods.

Classical qualitative methods are used for separations such as precipitation, distillation, and extraction. Identification is based on differences in odor, color, melting and boiling point, solubility, radioactivity, or reactivity.

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What is the pH of a 0.81 M solution of methylammonium iodide?

Answers

The pH of a 0.81 M solution of methylammonium iodide is 0.092.

How to calculate pH?

pH is a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline.

The pH of a substance or solution can be calculated by using the following expression;

pH = - log {H}

Where;

H = concentration of acid

According to this question, 0.81M is contained in a solution of methylammonium iodide.

pH = - log {0.81}

pH = 0.092

Therefore, 0.092 is the pH of the methylammonium iodide.

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What is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? Assume that the contribution of protons from H2SO4 is near 100 %

Answers

The net ionic equation is :

Ba²⁺  +  2OH⁻ +  2H⁺  +  SO₄²⁻   ---->   BaSO₄  +  2H₂O

The balanced molecular equation is given as:

Ba(OH)₂   +  H₂SO₄   ----> BaSO₄  +  2H₂O

The net ionic equation is the equation in which we breaking up into ions and cut off the spectator ions that is the ion which is common in both side , we get :

complete ionic equation first :

Ba²⁺  +  2OH⁻  +  2H⁺  +  SO₄²⁻  ---->    BaSO₄  +  2H₂O

now. there are no spectator ion so net ionic equation is same :

Ba²⁺  +  2OH⁻ +  2H⁺  +  SO₄²⁻   ---->   BaSO₄  +  2H₂O

Thus, The net ionic equation is :

Ba²⁺  +  2OH⁻ +  2H⁺  +  SO₄²⁻   ---->   BaSO₄  +  2H₂O

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Underline the correct answer 1.In which of the following substances are the particles arranged in a regular pattern? A Water B Salt solution C Ice D Water vapour​

Answers

Answer:

A). Water

PLEASE GIVE BRAINLIEST THANK YOU!!!

Answer:

water

Explanation:

As a pathologist, Joachim is responsible for performing autopsies. What does this MOST likely mean for Joachim?

A.
He spends hours trying to match fingerprints to a database.

B.
He compares bullets to guns to see if he can find a match.

C.
He dissects human bodies to determine how someone died.

D.
He uses insects to learn when a person most likely died.

Answers

Conducting an autopsy means Jacob is basically dissecting human  bodies to determine how someone died.

An autopsy, also known as a post-mortem examination, is a specialized surgical procedure used to determine the cause and manner of death. The cause of death is generally the medical reason explaining why a patient passed. The manner of death is usually the circumstances surrounding the death.

What we learn from autopsies allows clinicians to better understand the disease processes, accurately diagnose diseases, improve therapy, and also potentially aid other patients who are currently suffering from a similar disease. There are many reasons why families choose to pursue having an autopsy done. Consent for an autopsy includes diagnostic, education, quality improvement, and research.

It is mostly used by the law enforcements as well to know also catch the culprits.

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Two different atoms have nine protons each and the same mass. However, one is neutral while the other has a negative charge. Describe what each atomic structure could be, listing the possible number and location of all subatomic particles.

Answers

Two different atoms have nine protons each and the same mass. However, one is neutral while the other has a negative charge then the atomic structure of the both atom are of same element but one of them is electrically neutral and other has a stable electronic configuration

An atom is said to be neutral because it has an equal number of electron and proton in it  and if two different atom have nine proton each and same the mass but one is neutral while the other has a negative charge and the mass of an atom is determined by the number of proton and neutron is present in its nucleus and since both the given atom have 9 proton and the same mass and they must also have the same number of neutron

This implies both the atom have the same nucleus but different charges so it can be concluded that they both the atom of the same element but one of them is electrically neutral and other has stable electronic configuration

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What is the name of the molecule below?
• A. 2-pentyne
O B. 2-pentene
O c. 2-pentane
• D.
pentane

Answers

Answer:

2-pentene

Explanation:

On the 2nd Carbon we see a C=C, carbon with double bonds have the suffix -ene.

in another experiment, dilute sulfuric acid is titrated with 0.100mol dm-3 sodium hydroxide solution.
2NaOH + H2SO4 = Na2SO4 + 2H2O
26.60cm^3 of dilute sulfuric acid is needed to neutralise 25.00cm^3 of the sodium hydroxide solution.
Calculate the concentration of the dilute sulfuric acid in mol dm-3

Answers

The concentration of the dilute sulfuric acid is 0.047  mol dm-3.

What is a neutralization reaction?

We know that a neutralization reaction has to do with the kind of reaction that occurs between an acid and a base. The acid is made to react with the base and the product of the reaction would be salt and water only. We can now be able to find  the concentration of the dilute sulfuric acid in mol dm-3 form the procedure that have been laid down below.

Concentration of the base [tex]C_{B}[/tex] =  0.100mol dm-3

Volume of the base [tex]V_{B}[/tex]=  25.00cm^3

Concentration of the acid [tex]C_{A}[/tex]  = ?

Volume of the acid [tex]V_{A}[/tex] = 26.60cm^3

Number of moles of the acid [tex]N_{A}[/tex] = 1

Number of moles of the base [tex]N_{B}[/tex] = 2

Now;

[tex]C_{A}[/tex] [tex]V_{A}[/tex]/ [tex]C_{B}[/tex] [tex]V_{B}[/tex] =  [tex]N_{A}[/tex]/ [tex]N_{B}[/tex]

[tex]C_{A}[/tex] = 0.100mol dm-3 *  25.00cm^3  * 1/26.60cm^3 * 2

[tex]C_{A}[/tex] = 2.5/53.2

[tex]C_{A}[/tex] = 0.047 M

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3) A gas has a volume of 100.0 mL at 700mmHg and 10 DC. What is the new volume at STP?

Answers

Ideal gas law is valid only for ideal gas not for vanderwaal gas. Combined Boyle's and Charles' gas law is used here. Therefore the new volume of gas is 88.7L.

What is ideal gas equation?

Ideal gas equation is the mathematical expression that relates pressure volume and temperature.

Mathematically the relation between Pressure, volume and temperature can be given as

PV=nRT

where,

P = pressure of gas

V= volume of gas

n =number of moles of gas

T =temperature of gas

R = Gas constant = 0.0821 L.atm/K.mol

Combining Boyle's and Charles' gas law

P₁V₁/T₁ = P₂V₂/T₂

{ (0.92atm) (100 ml)} ÷283K ={ (1 atm) (V₂)} ÷273 K

V₂ = 88.7L

Therefore the new volume of gas is 88.7L.

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Evan is told by the police officer, “You have the right to remain silent.” What is MOST likely happening?

A.
Evan is being issued a subpoena.

B.
Evan is being served a search warrant.

C.
Evan is being read his Miranda rights.

D.
Evan is about to testify in a criminal case.

Answers

The words "You have the right to remain silent.” means Evan is being read his Miranda rights, option C.

What are Miranda rights?

Miranda rights are warnings issued by law enforcements to individuals in custody to protect their rights as part of the criminal procedure rule. These rights were created in 1966 consequently by the Miranda vs Arizona supreme court case.

The Miranda warning contains the words "You have the right to remain silent. Anything you say or do may be used against you in the court of law. You have the right to an attorney.” When the police officers read this to Evan, it was his Miranda rights.

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What types of atoms typically form covalent bonds?

Answers

Answer: Between non-metals

Explanation:

Consider the combustion reaction between 25.0 mL of liquid methanol (CH3OH; d = 0.850 g/mL) and 12.5 L of oxygen gas measured at STP. The products of the reaction are CO2 (g) and H2O (g). Calculate the volume of liquid H2O formed if the reaction goes to completion and you condense the water vapor. (Assume that the density of water is 1.00 g/mL)

Answers

The volume of the water produced is obtained as 0.01422L.

What is the volume of water formed?

We know that a combustion reaction is one in which a substance is burnt in oxygen. When we burn the substance in oxygen, heat is evolved and this can be seen as a change in the temperature of the system.

Now;

We must find the number of moles of each of the reactants so that we can be able to determine the limiting reactant.

Volume of methanol =  25.0 mL

Density of methanol = 0.850 g/mL

Mass of methanol = Density * volume

= 0.850 g/mL * 25.0 mL

= 21.25 g

Number of moles of methanol= 21.25 g/32 g/mol

= 0.66 moles

Volume of oxygen = 12.5 L

If 22.4 L of oxygen is occupied by 1 mole

12.5 L  is occupied by 12.5 L  * 1 mole/22.4 L

= 0.59 moles

If 2 moles of methanol reacts with 3  moles of oxygen

0.66 moles of methanol reacts with  0.66 moles  * 3 moles/2 moles

= 0.99 moles

Hence oxygen is the limiting reactant.

If 3 moles of oxygen produces 4 moles of water

0.59 moles of oxygen produces 0.59 moles * 4 moles/ 3 moles

= 0.79 moles

Mass of water =  0.79 moles * 18 g/mol = 14.22 g

Volume of the water = mass/density

= 14.22 g/1.00 g/mL

= 14.22 mL or 0.01422L

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describe the different situations that led to the creation of the colonies in each region. Explain how this impacted their lifestyles and religious values?? Which of the following best describes the difference between differential stress and confining pressure?a. Under confining pressures, the stresses on the sides are greater than the force of gravity. Stresses are the same on all sides for differential stress.b. In differential stress, the stresses on the sides are greater than the force of gravity. Stresses are the same on all sides for confining pressure.c. In differential stress, the force of gravity is higher than in confining stress.d. Both confining pressure and differential stress have stresses applied to a rock in one direction, which is greater than the force of gravity as a whole.e. In confining stress, the force of gravity is higher than in differential stress. problem 1: explain what this method is doing. to use it, create a new java project and write a main method, too. call mystery method from main at least two times with different parameters. public static boolean mystery(int first, int second) { boolean result a research team believes that a recently discovered treatment will have an effect on the dependent variable. they randomly selects a sample of 12 people, and with their permission, provides them a treatment. they then evaluate the evidence regarding whether their treatment had an effect. here's the data: the mean for their sample is 99. the mean for the population is 102, with a standard deviation of 11. assume a normal distribution for the individual scores. the research team sets their alpha level to .05. . calculate the z test, and decide whether the research team should: 0 - retain the null hypothesis 1 - reject the null hypothesis. Which number line represents the graph of x = 2? If a service employee provides the service, then the employee becomes a part of the service. This is an example of service ________.Select one:a. intangibilityb. inseparabilityc. variabilityd. perishabilitye. heterogeneity A driver is going 25 m/s down the road when they spot a deer jump out in front of them. It takes them 0.75 seconds to react and apply the brakes. The brakes provide an acceleration of -8 m/s/s. How far do they travel before coming to a stop from the moment they saw the deer? (round your answer to the nearest whole meter) what is the angle between a = 3.0i - 4.0j and b=2.0i +3.0k? Based on the excerpt, which type of government is the city of springfield using?. the federal agency that reviews all of the authorization and appropriations bills that have been passed by the congress is the Mr. Fitch needs to get a loan to replace the air-conditioning system in his home.The cost of the replacement, including installation, is $4,348.00.He can apply for a 5-year loan or a 3-year loan.Both loans involve simple interest with an annual interest rate of 6.5%.If Mr. Fitch applies for the 5-year loan, how much more will he pay in interest than with the 3-year loan? What features should you present when demonstrating 2023 armadas powerful acceleration?. a u.s. department of agriculture law on how much coloring or other additives can be in food is an example of law or regulation. The length of a rectangle is four more than triple the width. If the perimeter is 160 inches, find the dimensions. A 100 g ball and a 200 g ball are connected by a 30 cm long massless rigid rod. The balls rotate about their center of mass at 120 rpm. What is the speed of the 100 g ball?. a spherical balloon is inflated with gas at a rate of 500 cubic centimeters per minute. (a) how fast is the radius of the balloon changing at the instant the radius is 50 centimeters? which types of apps are not supported by a 64-bit edition of windows 10? (choose all that apply.) a. dos b. win32 c. win64 d. .net framework e. win16 Do you agree with the postponement of the barangay election 2022 according to carol dweck, is the way our beliefs about our abilities dictate what goals we set for ourselves, what we think we can learn, and ultimately what we do learn. Which of these debatable issues interest you? Check any that apply.the influence of human activity on climate changeaccess to firearmsaccess to health carenuclear power generationthe use of social mediathe status of refugeesthe protection of endangered speciesinternational trade policies