a tennis ball travels the length of rhe court, 24 m, in 0.5 s. Find its average speed​

Convert 10g of NaOH to moles using the molar mass.

10 g NaOH / 39.997 g/mol NaOH = 0.25 mol NaOH

NaOH is a strong base so it dissolves completely in solution, so you’ll have 0.25 mol of OH-. Calculate the molarity of OH-.

0.25 mol OH / 0.250 L = 1.0 M OH-

Calculate the pOH. pOH = -log(1.0) = 0

pH = 14 - pOH = 14

Answer:

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

Explanation:

Hi, these are the answers:-

Thigh bone → Organ

Living cell → Cell

Bone cells working together→ Tissue

All the bones, cartilages and ligaments→ Organ System

Hope it helps you...

Pls mark brainliest if it helps you...

(Answered by Benjemin)

Answer:

These are all in order....

Explanation:

- closed system usually absorbs thermal energy from its surroundings, which is heat transfer into the system

- a solute is a substance dissolved in another substance, known as a solvent

- A solvent is a substance that dissolves a solute, resulting in a solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid

- a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent)

- a nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy

- a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.

- Half-life is the time required for a quantity to reduce to half of its initial value

- the determination of the age or date of organic matter from the relative proportions of the carbon isotopes carbon-12 and carbon-14 that it contains. The ratio between them changes as radioactive carbon-14 decays and is not replaced by exchange with the atmosphere.

- any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed

Ambulatory or mobility devices are required to reduce weight-bearing, provide wider base of support, support unstable joints, assist with balance and coordination, improve mobility and independence, provide relief from pain, compensate for weakness, and provide means of exercise/therapy.

Reduce weight-bearing on lower limbs - either on a temporoary or permanent basis. To provide a wider base of support eg the use of a quad walker or a zimmer frame can achieve this. To provide a means of exercise or physical therapy for individuals with mobility impairments.

Assist with balance and coordination for individuals with conditions such as Parkinson's disease or ataxia. To improve mobility and independence for individuals with conditions that affect their ability to walk, such as spinal cord injuries, muscular dystrophy, or stroke.

Support of unstable joints eg leg braces or ankle-foot orthoses can provide additional stability and reduce the risk of falls for individuals with conditions such as cerebral palsy or multiple sclerosis.

To provide relief from pain or discomfort associated with standing or walking for extended periods of time, such as in the case of osteoarthritis or plantar fasciitis. To compensate for weakness or paralysis in the lower limbs, such as with the use of braces or exoskeletons for individuals with spinal cord injuries or stroke.

To know more about Ambulatory devices:

https://brainly.com/question/31587778

#SPJ1

--The given question is incomplete, the complete question is given

" Wheelchair prescription and modifications involves five main rationales, according to Dutton, 1995:

Facilitate transfers

Facilitate proper positioning

Overcome architectural barriers

Permit self-propulsion

Permit transportation of objects

Other than substitution for a lost limb, and facilitating the ability to transport needed objects, why else do you think ambulatory or mobility devices are required for some individuals? "--

Answer: AM and FM frequency

Explanation:

The sum of all of the physical and chemical activities that occur in a cell make up its metabolism. Metabolism includes all the processes that are involved in converting food into energy and building or breaking down molecules. These processes are highly regulated and complex, requiring the coordinated action of numerous enzymes, signaling molecules, and other cellular components.

Metabolism is essential for the survival and function of all cells, and plays a critical role in maintaining homeostasis in the body. Dysfunction in metabolism can lead to a range of diseases and disorders, including metabolic syndrome, diabetes, and cancer. Understanding the intricacies of cellular metabolism is a major focus of modern biomedical research.
Anabolism involves the synthesis of complex molecules from simpler ones, consuming energy in the process. In contrast, catabolism breaks down complex molecules into simpler ones, releasing energy. These processes allow the cell to grow, maintain its structure, and respond to environmental changes. Enzymes, which are proteins, play a crucial role in regulating metabolic pathways. Overall, metabolism is essential for the proper functioning and survival of a cell.

Learn more about chemical activities here : brainly.com/question/29016918

#SPJ11

Answer:24

Explanation:axtizent

True, an atom in the ground state has a stable valence electron configuration.

Atoms in their ground state have the lowest possible energy level, meaning their valence electrons are in the lowest available energy orbitals. When the valence electrons are in these orbitals, they are at their most stable configuration. This is because electrons prefer to occupy lower energy levels before filling higher energy levels.

In this stable configuration, the atom is less likely to participate in chemical reactions or gain/lose electrons. However, it is important to note that some elements have more than one possible stable valence electron configuration, depending on the energy levels and subshells available for their electrons to occupy.

Learn more about ground state here:

https://brainly.com/question/31053526

#SPJ11

\(\\ \rm\Rrightarrow C_1V_1=C_2V_2\)

\(\\ \rm\Rrightarrow 0.750V_1=275(0.5)\)

\(\\ \rm\Rrightarrow 3/4V_1=137.5/tex]

\(\\ \rm\Rrightarrow 3V_1=550\)

\(\\ \rm\Rrightarrow V_1=183.3mL\)

False , The most abundant cation in intracellular fluid is potassium (K+), not sodium (Na+). Potassium ions are found in higher concentrations inside cells, contributing to the positive charge within the intracellular environment.

Sodium ions, on the other hand, are more abundant in extracellular fluid. The concentration gradient of sodium and potassium across the cell membrane plays a crucial role in various cellular processes, including the generation of action potentials and the maintenance of cell volume and osmotic balance.

To know more about intracellular refer here

https://brainly.com/question/7219082#

#SPJ11

Answer:

The atomic mass of phosphorus is 29.864 amu.

Explanation:

Given data:

Atomic mass of phosphorus = ?

Percent abundance of P-29 = 35.5%

percent abundance of P-30 = 42.6%

Percent abundance of P-31 = 21.9%

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) + (abundance of 3rd isotope × its atomic mass  / 100

Average atomic mass  = (29×35.5)+(30×42.6) + (31×21.9) /100

Average atomic mass =  1029.5 + 1278 + 678.9/ 100

Average atomic mass  = 2986.4 / 100

Average atomic mass = 29.864 amu.

The atomic mass of phosphorus is 29.864 amu.

The atomic mass is the mass of an atom. Although the SI unit of mass is the kilogram, atomic mass is often expressed in the non-SI unit atomic mass unit or unified mass or dalton.

To calculate the atomic mass the step we should follow is as follows:-

Hence, the atomic mass of the phosphorus is:-

\(\frac{(29 * 35.5) \ + (30 * 42.6)\ + (31 * 21.9)}{100}\)

After solving it,

\(\frac{029.5 + 1278 + 678.9}{100}\)

= \(29.864 amu.\)

Hence, the atomic mass of the Phosphorus is 29.864amu

For more information, refer to the link:-

https://brainly.com/question/1317964

Ideal gas law is valid only for ideal gas not for vanderwaal gas. Therefore, correct option is option B that is CHCl\(_3\).  Ideal gas is a hypothetical gas.

Ideal gas equation is the mathematical expression that relates pressure volume and temperature. There is no force of attraction between the particles.

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

PV=nRT

where,

P = pressure of gas sample = 850 torr=1.11atm

V= volume of gas sample =0.918 L

n =number of moles of gas sample=?

T =temperature of gas =308K

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

Substituting all the given values, we get

1.11atm×0.918 L =n× 0.0821×308

On calculation we get

1.018=n×25.28

n=0.04moles

Molar mass =mass/moles

Molar mass = 4.84 g/0.04

                   =119. 4g/mol

Therefore, correct option is option B.

To learn more about ideal gas equation, here:

https://brainly.com/question/14826347

#SPJ1

Answer:

Genes determine which phenotypes you get

Explanation:

When you have a gene, it determines what proteins get bonded together. Such as eye color, hair color, hair type, etc.

Genes are the elements that influence traits. Alleles are the many varieties of a gene. Trait inheritance is controlled by individual alleles. While some alleles are recessive, others are dominant.

The term "gene" can be interpreted in a number of ways. The molecular gene is a sequence of nucleotides in DNA that is transcribed to form a functional RNA, whereas the Mendelian gene is the fundamental unit of inheritance. Protein-coding genes and noncoding genes are the two categories of molecular genes.

Chromosomes, which are found in the cell nucleus, are where genes are found. There are hundreds to thousands of genes on each chromosome. There are 46 chromosomes in all, or 23 pairs, in each typical human cell.

Some features are controlled by genes that are passed down from parents to their children, while others are learned via observation and experience, and the majority are influenced by genetics.

Thus,  Alleles are the many varieties of a gene.

To learn more about genes, follow the link;

https://brainly.com/question/8832859

#SPJ2

Answer:

B. hot to cold

Explanation:

Energy wants to reach thermal equilibrium (which is basically just balanced temperature) so it will move from hot to cold to make the cold object warmer and the hot object cooler.

Answer:

The chemical at the heart of the air bag reaction is called sodium azide, or NaN3. CRASHES trip sensors in cars that send an electric signal to an ignitor. The heat generated causes sodium azide to decompose into sodium metal and nitrogen gas, which inflates the car's air bags

Explanation:

Answer: I think it's D

Explanation: None of the other options are true.

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

\(n = \frac{N}{L} \\\)

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

\(n = \frac{2.4 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 3.986710...\)

We have the final answer as

Hope this helps you

The number of moles of SO₃ contained in this chemical compound with the given number of elementary entities (2.4 × 10²⁴) is equal to: C. 4.0.

In Chemistry, the number of moles of SO₃ contained in this chemical compound with the given number of elementary entities, we would use the following formula:

n = N/NA

where:

Scientific data:

Substituting the given parameters into the formula, we have;

n = 2.4 × 10²⁴/6.02 × 10²³

n = 3.99 ≈ 4.0 moles.

Read more on number of moles here: brainly.com/question/3173452

#SPJ2

The phenolphthalein turns pink after being added to the solution left after an alkali metal reacts completely with water.

Phenolphthalein is frequently used as a trademark in acid-base titrations. This software turns colorless in acidic solutions and crimson in simple solutions.

Phenolphthalein is evidently colorless and works in another way than litmus paper. also, it turns in the pink shade in an alkaline answer or base. moreover, the compound stays colorless in acids but starts offevolved to turn crimson on pH eight.

Phenolphthalein is colorless in acidic solutions and brilliant crimson in basic solutions. As such, it must change from colorless to pink around the equivalence factor of this titration. Our approximation of where the equivalence factor happens is known as the endpoint. The ionized form of phenolphthalein is pink. Therefore, phenolphthalein will possess pink after being added to a solution containing alkali metal with water.

Learn more about phenolphthalein here:-https://brainly.com/question/23732406

#SPJ4

Answer:

Both are different.

Explanation:

Both rocks are different from one another because both formed from different types of rocks. Rock A was formed from small pieces of rock while on the other hand, Rock B was formed from liquid  rock so they both have different sources of rocks from which they were formed. Forming at the same time does not show that they are similar to each other, it is their source which decides that they are similar or different.

Answer:

The 35-watt light bulb does a work of 46200 joules in 1320 seconds.

Explanation:

From Physics we remember the definition of work (\(W\)), measured in joules, by the following integral equation:

\(W = \int\limits_{0}^{t} {\dot W} \, dt\) (1)

Where \(\dot W\) is the power, measured in watts.

If the power is stable in time, then the work can be calculated by the following algebraic equation:

\(W = \dot{W}\cdot \Delta t\) (2)

If we know that \(\dot W = 35\,W\) and \(\Delta t = 1320\,s\), then the work done by the 35-light bulb is:

\(W = (35\,W)\cdot (1320\,s)\)

\(W = 46200\,J\)

The 35-watt light bulb does a work of 46200 joules in 1320 seconds.

Answer: Solar eclipse

Explanation:

Minerals can be located using geochemical surveys and remote sensors that analyze satellite images. Following that, mining or quarrying is used to remove many minerals.

To learn more about minerals refer to:

https://brainly.com/question/15844293

#SPJ4

Answer:

This relationship between pressure and volume is known as Boyle's lawA law that states that at constant temperature, the volume of a fixed amount of a gas is inversely proportional to its pressure., after its discoverer, and can be stated as follows: At constant temperature, the volume of a fixed amount of a gas is. The pressure law states that for a constant volume of gas in a sealed container the temperature of the gas is directly proportional to its pressure. This can be easily understood by visualising the particles of gas in the container moving with a greater energy when the temperature is increased.

Explanation:

Answer:

basically increased temperature causes an increase in pressure. and vise versa.

The linkage isomers of the complex have been shown in the image attached.

In coordination chemistry, a kind of isomerism known as "linkage isomerism" refers to the binding of a separate ligand to the central metal ion via a different atom in the ligand.

In other words, the metal ion is attached to the same collection of atoms, but they are coupled in different ways. We can see that the linkage isomers are attached to the central atom in different ways as shown in the image attached.

Learn more about linkage isomer:https://brainly.com/question/31964801

#SPJ1

Answer: 8

Explanation:

Answer:

I think the answer is 4 or 3, it could be 2 as well, I'm not sure.

Explanation:

The question is: Give the systematic name of \(P_{2}S_{3}\).

Answer: The systematic name of \(P_{2}S_{3}\) is diphosphorus trisulfide.

Explanation:

As the chemical formula of given compound is \(P_{2}S_{3}\). This sows that there are two phosphorus atoms so a prefix "di" will be added before the name of phosphorus atom.

Whereas there are three sulfur atoms present here. So, a prefix "tri" will be added before naming the sulfur atom. As sulfur is the anion so a suffix '-ide' will be added to its name.

Hence, name of the compound \(P_{2}S_{3}\) is diphosphorus trisulfide.

Thus, we can conclude that the systematic name of \(P_{2}S_{3}\) is diphosphorus trisulfide.