Las Vegas Raiders' running back Josh Jacobs is 72 inches tall and has mass of 100 kg. Los
Angeles Rams' defensive tackle Aaron Donald is also 72 inches tall but has a mass of 130
kg. Josh runs the ball East, towards the goal line, quickly traveling 50 yards in
5.5 seconds. Josh then accelerates towards the goal line at 9 m/s2. Aaron accelerates
West, the exact opposite direction, towards Josh at 6.5 m/s2. They both meet with an
explosive collision at the 1 yard line.
In a paragraph, address the following questions. Calculate numerical answers to the
nearest hundredth and correct units must be included.
1. What is Josh Jacobs' speed?
II. What is Josh Jacobs' velocity?
III. How much force does Josh Jacobs create?
IV. How much force does Aaron Donald create?
V. By calculating the net force, does Josh Jacobs score the touchdown.
Explain why or why not?

Answer:

e. 327/227

Explanation:

This is the correct standard pressure.

From the following \(H_3PO_4\) is a polyprotic acid. Polyprotic acids are acids that have more than one ionizable hydrogen atom.

When these acids dissolve in water, they can release multiple protons (H+) in a stepwise manner. In the options you provided: \(H_3PO_4\) (phosphoric acid) is a polyprotic acid because it has three ionizable hydrogen atoms. It can release one proton at a time, forming \(H_2PO4^-\), then \(H_2PO4^-\), and finally \(PO_4^{3-}\). \(H_2SO_3\) (sulfurous acid) is also a polyprotic acid with two ionizable hydrogen atoms. It can release one proton and then release another proton . On the other hand, \(CH_3COOH\) (acetic acid) and \(CH_4\) (methane) are not polyprotic acids. Acetic acid only has one ionizable hydrogen atom and can release one proton to form \(CH_3COO^-\). Methane, which is not an acid, does not have any ionizable hydrogen atoms.

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According to the Bohr's model, known as a planetary model, the electrons orbit the atom's nucleus in determined, permissible pathways. The electron's energy is constant when it is in one of these orbits.

In Bohr's model theory, there is a tiny, positively charged nucleus that is surrounded by negatively charged electrons that orbit the nucleus. According to Bohr, an electron that is farther from the nucleus has more energy than an electron that is closer to the nucleus does.

By explaining that electrons move in fixed orbitals (shells) and not anywhere in between, Bohr theory amended the atomic structure model. He also showed that each orbit (shell) has a fixed energy. Bohr refined Rutherford's model of the atom's nucleus to include electrons and their varying energy levels.

Bohr's hypothesis is applicable to entities that are similar to hydrogen but only have one electron, such Li2+. Atoms similar to hydrogen are amenable to Bohr's hypothesis (single electron system). Only one electron makes up Li2+ and the H atom. He and He2+ each have two and zero electrons.

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Answer:

The Soviet Nation attempted to

Answer: Oxaloacetate

Answer:

Oxaloacetate

Explanation:

At the end of this series of reactions, the four-carbon starting molecule, oxaloacetate, is regenerated, allowing the cycle to begin again. In the first step of the cycle, acetyl CoAstart text, C, o, A, end text combines with a four-carbon acceptor molecule, oxaloacetate, to form a six-carbon molecule called citrate.

Precautions need to be observed when using methanol and a flame are wearing a mask and gloves, performing experiment from a distance and in a careful and safe way.

Methanol burns with a clear, clean flame which is dangerous if not carried properly. Wearing a mask and gloves during experiment in order to safe the hands and face from burning.

Performing experiment from a distance and in a carful way avoids the chances of accident so we can conclude that wearing a mask and gloves, performing experiment from a distance and in a careful and safe way are the precautions are needed.

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Answer:

The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).

Explanation:

They are called alkali metals because they are in the alkali group.

Answer:

thats when you mix so that's friction

Explanation:

1 lemonade+1 lemonade=2 lemonaede

and i hope the lemonade tast good! :D

The type of change that has occurred on mixing ice cubes, water ,sugar, koolaid mix is a physical change.

Physical changes are defined as  those changes which affect only the form of a substance but not it's chemical composition. They are used to separate mixtures in to chemical components but cannot be used to separate compounds to  further simpler compounds.

Physical changes are always reversible  by using physical means and involve a change in the physical properties.Examples of physical changes include melting,boiling , change in texture, size,color,volume and density.Magnetism, crystallization, formation of alloys are all reversible  changes and hence physical changes.

They involve only rearrangement of atoms and are often characterized to be changes which are reversible.

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The given question is incomplete, and hence, can not be answered. Still, adding some relevant information for your reference.

What is vapor pressure?

Vapor pressure , or equilibrium vapor pressure, is the pressure produced by a vapor in thermodynamic equilibrium with a condensed phase (solid or liquid) at a given temperature. Defined as applied pressure. temperature in a closed system. Equilibrium vapor pressure is a measure of the evaporation rate of a liquid. This refers to the tendency of particles to escape from liquids (or solids). Substances that have a high vapor pressure at room temperature are often called volatile. The pressure that vapor exerts on the liquid surface is known as vapor pressure. As the temperature of a liquid increases, so does the kinetic energy of its molecules. As the kinetic energy of the molecules increases, the number of molecules that become vapor also increases, increasing the vapor pressure.

The given question is incomplete, and hence, can not be answered. Still, adding some relevant information for your reference.

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In the summer, the Moxie's tank will be under 110.5 atm of pressure.

The right answer is C.

The pressure law states that for a given quantity of gas, provided the volume stays constant, the pressure exerted on the container's sidewalls is exactly proportional to the absolute temperature of the gas.

Briefing: The mathematical formulation of this rule is

\(\frac{P_1}{T_1 }= \frac{P_2}{T_2}\)

where

The initial pressure is P1.

P2 is the ultimate pressure.

T1 is the initial temperature.

T2 is the final temperature.

As the gas's temperature rises, so does its pressure.

The pressure within the Moxie's tank will thus be greater than 50 atm throughout the summer since summer temperatures are higher than winter ones.

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Answer:As the ball is at 70 degree celsius and the water is at 30 degree celsius, the heat flow will take place from the hot metal ball towards the water which is at low temperature.

Explanation:

Therefore,  there will be a decrease in the temperature of the metal ball.

Answer:

It does not react with water, but reacts with most acids

Explanation:

Answer:

It doesn't react with water, but reacts with most acids

The process of photosynthesis requires water and air in addition to grow ,obtain their energy from the sun  and supply oxygen to the environment .

It is defined as a process by which plants and other photosynthetic organisms convert the light energy in to chemical energy  through the process of cellular respiration.

Some of the energy which is converted  is stored in molecules of carbohydrates like sugar and starches  which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis  are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the content of oxygen in earth's atmosphere.

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3205.8 grams of gasoline has disappeared.

The ideal gas law, which connects the pressure (P), volume (V), number of moles (n), and temperature (T) of a gas, must be used to address this issue:

PV = nRT

where T is the absolute temperature, R is the universal gas constant, with a value of 0.08206 L atm/(mol K), and R is the universal gas constant.

The settings are established as 273.15 K (0 °C) and 1 atm (standard temperature and pressure), often known as STP. As a result, we can use the ideal gas law to determine how many moles of octanol vapour have escaped:

n = PV/RT = (1 atm)(558.7 L)/(0.08206 L·atm/(mol·K))(273.15 K) = 24.6 mol

To convert moles to grams, we need to use the molar mass of octanol, which is 130.23 g/mol. Therefore, the mass of gasoline that has disappeared is:

mass = n x molar mass = 24.6 mol x 130.23 g/mol = 3205.8 g

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The neutralization reaction is:

O2H 3PO4 + 3Ba(OH) 2 → 6H 2O+ Ba(PO 4)2

A neutralization reaction is a type of chemical reaction that occurs between an acid and a base, resulting in the formation of a salt and water.

In this reaction, the hydrogen ions (H+) from the acid react with the hydroxide ions (OH-) from the base to form water (H2O), which neutralizes the acidic and basic properties of the reactants. The remaining ions then combine to form a salt.

The general equation for a neutralization reaction is:

Acid + Base → Salt + Water

For this question, the chosen answer is the neutralization reaction  because an acid (H3PO4) and a base (Ba(OH)2) react to form water and a salt (Ba(PO4)2).

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Answer:

At standard temperature and pressure (STP), two atoms of the element bind to form dioxygen, a colorless, odorless, tasteless diatomic gas with the formula O2. Oxygen is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element.

Answer:

Oxygen is a colorless, odorless, tasteless gas. It changes from a gas to a liquid at a temperature of -182.96°C (-297.33°F). The liquid formed has a slightly bluish color to it. Liquid oxygen can then be solidified or frozen at a temperature of -218.4°C (-361.2°F).

Explanation:

The carburizing time necessary to achieve a carbon concentration of 0.30 wt% at a position 4 mm into an iron-carbon alloy is 63.4 hours.

To determine the carburizing time necessary to achieve a carbon concentration of 0.30 wt% at a position 4 mm into an iron-carbon alloy, we can use Fick's second law of diffusion:

\(DC_{surface} / 2 = (C_{surface} - C_{4mm}) / erf(x / (2 * \sqrt{Dt} ))\\\)

where D is the diffusion coefficient, \(C{surface}\\\) is the surface carbon concentration (0.90 wt%), C_4mm is the carbon concentration at the position 4 mm into the alloy (0.10 wt%), x is the distance from the surface (4 mm), and t is the carburizing time we want to find.

We can use the diffusion coefficient for γ-Fe at 1100°C from Table 5.2, which is D = \(6.0 * 10^{-12} m^2/s.\)

Substituting the given values, we get:

\((6.0 * 10^{-12} m^2/s) * (0.90 - 0.30) / 2 = (0.90 - 0.10) / erf(4 mm / (2 * \sqrt{6.0 * 10^{-12} m^2/s} ))\)

Simplifying the left-hand side, we get:

\(1.8 * 10^{-12} m^2/s = (0.80) / erf(4 mm / (2 * \sqrt{(6.0 * 10^{-12} m^2/s) * t)})))\)

Taking the inverse error function of both sides, we get:

\(erf(4 mm / (2 * \sqrt{6.0 * 10^{-12} m^2/s) * t)} ) = 0.000346\)

Substituting this back into the previous equation, we get:

\(1.8 * 10^{-12} m^2/s = (0.80) / 0.000346\)

Solving for t, we get:

t = 63.4 hours

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Answer:

1. false

2. true

3.true

4.true

Explanation:

Answer:

1. True

2. True

3. True

4. True

5. True

HOPE THIS HELPS

Explanation:

The boiling point of a substance is 293°C.

The boiling point is the temperature at which the vapor pressure of a liquid becomes equal to the atmospheric pressure.

So, at the boiling point:

The vapor pressure =atmospheric pressure = 1 atm.

To get the vapor pressure of the substance at 220°C is definitely less than 1 atm.

Since, as the temperature increases, the vapor pressure of the liquid increases.

Explanation:

In chemistry, thermodynamics, and many other related fields, phase transitions (or phase changes) are the physical processes of transition between the basic states of matter: solid, liquid, and gas, as well as plasma in rare cases.

Answer:

In chemistry, thermodynamics, and many other related fields, phase transitions are the physical processes of transition between the basic states of matter: solid, liquid, and gas, as well as plasma in rare cases. A phase of a thermodynamic system and the states of matter have uniform physical properties.

Explanation:

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Cellular respiration converts oxygen and glucose into water and carbon dioxide.

Answer:

To calculate the requested values, we can follow these steps:

Given:

Mass of CoSO4 = 0.01973 g

Volume of volumetric flask = 500 mL

1. Percentage by mass of Co2+ in CoSO4:

To determine the percentage by mass, we need to calculate the mass of Co2+ in CoSO4 and divide it by the total mass of CoSO4, then multiply by 100.

Molar mass of CoSO4 = (1 x atomic mass of Co) + (1 x atomic mass of S) + (4 x atomic mass of O)

                   = (1 x 58.9332 g/mol) + (1 x 32.06 g/mol) + (4 x 16.00 g/mol)

                   = 58.9332 g/mol + 32.06 g/mol + 64.00 g/mol

                   = 154.9932 g/mol

Moles of Co2+ = Moles of CoSO4 (since the ratio is 1:1)

             = Mass of CoSO4 / Molar mass of CoSO4

             = 0.01973 g / 154.9932 g/mol

             ≈ 0.0001274 mol

Mass of Co2+ = Moles of Co2+ x Molar mass of Co2+

            = 0.0001274 mol x 58.9332 g/mol

            ≈ 0.007515 g

Percentage by mass of Co2+ = (Mass of Co2+ / Mass of CoSO4) x 100

                          = (0.007515 g / 0.01973 g) x 100

                          ≈ 38.07%

Therefore, the percentage by mass of Co2+ in CoSO4 is approximately 38.07%.

2. ppm Co2+ concentration:

ppm (parts per million) is a unit of concentration that represents the number of parts of a substance per million parts of the solution.

ppm Co2+ = (Mass of Co2+ / Mass of solution) x 10^6

Mass of solution = Mass of CoSO4 + Mass of water

                = 0.01973 g + 500 mL x density of water

The density of water is approximately 1 g/mL.

Mass of solution = 0.01973 g + 500 g

ppm Co2+ = (0.007515 g / (0.01973 g + 500 g)) x 10^6

         = 0.007515 g / 500.01973 g x 10^6

         ≈ 15.03 ppm

Therefore, the ppm Co2+ concentration of this solution is approximately 15.03 ppm.

3. mg Co2+ per deciLiter (dL) concentration:

To convert ppm to mg/dL, we need to multiply the ppm value by 10.

mg Co2+ per dL = ppm Co2+ x 10

              ≈ 15.03 mg/dL

Therefore, the concentration of Co2+ in this solution is approximately 15.03 mg/dL.

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25 ml of the solution contains 4.83 x 10⁻⁴ moles of CaCl₂.

Concentration, or the amount of solute in a solution, can either be expressed in molarity, M, moles of solute per liter of solution, or molality, m, moles of solute per kilogram of solution.

The concentration of the CaCl₂ solution is 0.0193 M.

Hence, there are 0.0193 moles of CaCl₂ per liter of the solution.

M = 0.0193 M

volume of solution = 25 ml

Multiply the volume by the concentration to get the number of moles.

M = moles of solute / volume of solution

moles of solute = M (volume of solution)

moles of solute = 0.0193 M(25 ml)(1 L / 1000 ml)

moles of solute = 4.83 x 10⁻⁴

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Answer:

A

Explanation:

10ml

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Answer:

chlorine is for pool

Explanation:

hope is help

15.9 moles of Ba(OH)\(_2\) would be made from 9.62 x 10²⁴. The mole signifies 6.022×10²³ units, which is a very big quantity.

In chemistry, a mole, sometimes spelt mol, is a common scientific measurement unit for significant amounts of extremely small objects like atoms, molecules, or even other predetermined particles.

The mole signifies 6.022×10²³ units, which is a very big quantity. Under the International Unit System (SI), the mole is defined as this quantity as of May 20, 2019, according the General Conference upon Weights as well as Measurements. The amount of atoms discovered via experimentation to be present in 12 kilograms of carbon-12 was originally used to define the mole.

mole = given number of particles / 6.022×10²³  

         =  9.62 x 10²⁴/ 6.022×10²³  

        = 1.59×10

          = 15.9 moles

Therefore, 15.9 moles of Ba(OH)\(_2\) would be made from 9.62 x 10²⁴.

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a. Coupling reactions allow cells to capture the free energy of glucose oxidation by linking the exergonic (energy-releasing) reaction of glucose oxidation with endergonic (energy-consuming) reactions in the cell. This efficient use of energy prevents the loss of energy as heat to the environment.

1. Glucose oxidation occurs in a series of steps in the cell, such as glycolysis and pyruvate processing.
2. In each step, a small amount of energy is released from the glucose molecule.
3. This energy is captured by coupling the exergonic reaction with an endergonic reaction, such as the phosphorylation of ADP to form ATP.
4. The ATP molecules generated can then be used as an energy source for other cellular processes, like protein synthesis or cell division.
5. By using the energy released from glucose oxidation in this way, cells are able to efficiently use the energy and minimize the loss of energy as heat to the environment.

This process affects other reactions in the cell by providing a continuous supply of energy in the form of ATP, which is essential for various cellular processes and maintaining the overall function and homeostasis of the cell.

b. A scientific question that a scientist might ask about how these processes are conserved across phyla could be: "What are the molecular mechanisms that enable the conservation of glucose oxidation and coupling reactions across different phyla, and how have these mechanisms evolved over time to maintain energy efficiency in various organisms?"

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In science, a statement that can be mathematically modeled based on repeated experimental observations, that describes some phenomenon of nature, is called a scientific law. A scientific law is a descriptive statement that summarizes a pattern observed in nature, typically expressed as a mathematical equation or formula, which describes the behavior of a particular natural phenomenon under certain conditions. Scientific laws are generally considered to be well-established and reliable, based on the repeated empirical evidence and testing that supports them.

The conditions for a standard electrochemical cell. select one or more : pressure of 1 atm temperature of 298 k solution concentrations of 1 M.

The electrochemical cell is the cell that is capable of generating the electrical energy from the chemical reactions or by the use of the electrical energy to cause the chemical reaction. The conditions for a standard electrochemical cell. select one or more : pressure of 1 atm temperature of 298 k solution concentrations of 1 M.  

There are the two types of the electrochemical cells is as follows : the galvanic called the electrolytic cells. the galvanic cell is also called as the voltaic cell.

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