At what point in an acid-base titration are equivalent quantities of hydronium ions and hydroxide ions present?

A Nonstick coatings on cooking pans.

B. Putting salt or sand on icy roads.

D Putting chalk on your hands before mountain climbing.

are examples of lowering unwanted friction

We may greatly reduce friction by polishing surfaces or by using a lot of lubricants like oil, water, or grease, but we cannot completely eliminate friction.

Nowadays, low friction coatings are a common form of industrial coating. Because of their low coefficient of friction, these coatings are given this moniker. Low coefficient of friction coatings come in a variety of forms, including PTFE, tungsten disulfide, molybdenum disulfide, etc.

A low coefficient of friction value means that less effort is needed to cause sliding than would be needed if the coefficient of friction were to be high.

learn more about friction refer

https://brainly.com/question/24338873

#SPJ9

Stack temperatures typically range from 350 to 450 degrees Fahrenheit. A 2.5% efficiency loss occurs for every 100 degrees over that temperature. The majority of buildings schedule annual boiler cleanings at regular intervals, but if you see those figures rise, it's time for a cleaning.

Excess air is required to completely burn the fuel since the air and fuel cannot combine exactly in a burner. Additionally, any leaks in the heater will draw air into the firebox that doesn't pass through the burners since the furnace or boiler firebox operates at a little negative gauge pressure. Fuels that are gaseous, like natural gas, burn more readily than fuels that are liquid or solid. Depending on the fuel type, different surplus air requirements will apply.

Learn more about temperature here-

https://brainly.com/question/15267055

#SPJ4

Complete Question

What type of spectrum, if any, would be produced if the light radiated by a heated atomic gas were to be dispersed through a prism? A. a continuous band of color B. a continuous band of color with some dark lines (missing wavelengths) C. only blue light D. only red light E. discrete lines of different colors

Discrete lines of different colors

When light passes through a heated atomic gas and then dispersed through the prism, A line spectrum is obtained always. This happens because when, heated atoms of the gas will be in excited state, these excited state atoms t will emit lights of specific frequency particular to the gas. Thus, a spectra containing lines of discrete colors is obtained on the screen.

Learn more about Dispersion here:

https://brainly.com/question/5001250

#SPJ4

Tides are strongest when the earth, moon and sun are in line.

A tidal wave is a periodically occurring shallow water wave brought on by the ocean's gravitational interactions with the Sun, Moon, and Earth. Despite the fact that tides have nothing to do with tsunamis, the phrase "tidal wave" is frequently used to describe them. A storm surge, storm flood, tidal surge, or storm tide is a tsunami-like occurrence of rising water that frequently occurs along coastlines during low-pressure weather systems like cyclones. It is calculated as the increase in water level over the average tidal level and excludes waves.

To know more about tidal waves, visit:

https://brainly.com/question/413185

#SPJ4

65 mi/h would be the relative velocity between you and the truck.

Speed is the directional speed of an item moving as a sign of its pace of progress ready as seen from a specific casing of reference and as estimated by a specific norm of time. Speed is a principal idea in kinematics, the part of traditional mechanics that depicts the movement of bodies. It could sound convoluted, yet speed is fundamentally speeding in a particular course. It is a vector amount, and that implies we want both extent (speed) and bearing to characterize speed. The SI unit of it is meter each second (ms-1 ). In the event that there is a shift in extent or the course in the speed of a body the body is supposed to speed up.

Learn more about velocity, refer:

https://brainly.com/question/27844313

#SPJ4

The cloud is moving at a 352 m/min speed.

An object must move at a consistent speed and direction in order to have a constant velocity. The object can only move in a straight line if the direction is constant. So, motion in a straight line at a constant speed is defined as having a constant velocity.

The speed of the cloud remains constant. As a result, we can calculate the cloud's velocity by dividing the distance it traveled over time: -\sv=d/t

where v is the speed, d is the distance, and t is the duration.

7920 meters were covered by the cloud in 22.5 minutes, so:

- V = 7920/22.5, V = 352 m/min

Consequently, the cloud's speed was 352 m/min.

Learn more about Velocity here-

https://brainly.com/question/18084516

#SPJ9

A passive harmonic filter uses capacitors and inductors that are tuned to remove particular harmonic frequencies.

A passive harmonic filter is the part of motor systems and utilizes capacitors to carry out different functions.

It is an important component that is installed in the inner side of the motor drive structure to block harmonic frequency.

There are diverse frequency drives in the motor system that produce a lot of distortion.

The purpose of harmonic filter is to reduce the noise produced by distortion.

Furthermore, if the problem is not adequately addresses then it can cause damage to nearby devices or equipment.

If you need to learn more about capacitors click here:

https://brainly.com/question/22989451

#SPJ4

When the elevator is at rest, the scale reads 75 kg.

The scale will read higher than when the elevator is at rest if you stand on it as it accelerates upward, making you feel heavier due to the elevator's floor pressing more forcefully on your feet. On the other hand, you feel lighter as the elevator speeds down. The scale will display the normal force, which is less than it was at rest, as N = m(g - a). An elevator scale is being used by a 75 kg individual to demonstrate the issue. The scale reads 100 kg as the elevator starts to rise.

In the case of a rest, the combined force acting on the elevator is caused by the person's mass and Earth's gravitational pull. As a result, the scale reads 75 kg when the elevator is at rest.

To know more about scale in elevator, click here:

https://brainly.com/question/14317862

#SPJ4

Answer:

Rutherford's experiment

Explanation:

Rutherford's experiment prompted a change in the atomic model. If the positive alpha particles mostly passed through the foil, but some bounced back. AND if they already knew that the electron was small and negative, then the atom must have a small positive nucleus with the electrons around them.

Nursing diagnoses are created by analyzing and grouping patient assessment data in order to pinpoint patient issues and choose the best nursing diagnoses.

The practice or process of diagnosing a disease based on its symptoms and characteristics. a: the conclusion drawn from a doctor's diagnostic. b: the investigation or analysis of the nature, cause, or occurrence of a condition, circumstance, problem, or engine problems diagnostic.

Identifying a disease or problem and separating it from other potential disorders is the process of diagnosis. The word's root is the Greek word gnosis, which means knowledge. imaging using magnetic resonance.

To learn more about diagnoses, visit:  https://brainly.com/question/28256071

#SPJ4

The rate at which a star or other object emits electromagnetic energy into space is called its luminosity.

A star's luminosity is a measurably inherent characteristic that is independent of distance. On the other hand, the concept of magnitude takes into account distance. According to the inverse-square law, the apparent magnitude is a measurement of how much the flux of light decreases with increasing distance.

The total amount of energy emitted by a star or other celestial object each second is expressed as luminosity abbreviated L. So, this is how much power a star produces. A star's bolometric luminosity is its total power output at all wavelengths.

The quantity of light emitted by a star's surface determines its brightness. How bright a star appears to a detector on Earth is known as apparent brightness. Distance affects how luminosity and apparent brightness differ from one another.

To learn more about luminosity refer to:

https://brainly.com/question/6933301

#SPJ4

The magnitude of the momentum is 5.78 kgm/s

Given:

mass of baseball = 0.144 kg

initial speed = V1 = 90 m/h = 0.025 m/s

final speed = V2 = 40.2 m/s

To Find:

momentum = p

Solution: momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction.

∆ P = m(V2 - V1)

∆ P = 0.144(40.2 - 0.025)

∆ P = 5.78 kgm/s

Hence, magnitude of the momentum is

Hence, magnitude of the momentum is 5.78 kgm/s

Learn more about Momentum here:

https://brainly.com/question/7538238

#SPJ4

Answer:

20cm

It is one of the characteristics of a plane mirror that, the distance of the plane mirror from the object is equal to its distance from the image. Therefore, given distance between object and mirror = 10cm. Distance between mirror and image = 10cm. Thus, the distance between object and image = 10 + 10 = 20cm.

Explanation: :0

If the top and bottom surfaces of the glass plates are parallel to each other, the incident and emergent beam will be parallel to each other no matter the wavelength (colour) of beam.

Refractive index is the lights bending ability when moving from one medium to another. Refractive index varies with colours but not angle of incidence and emergence.

To know more about refractive index

https://brainly.com/question/14578550

#SPJ4

No, there is no range of angles for total internal reflection(TIR).

Total internal reflection (TIR) is an optical phenomenon when waves arriving at the interface (boundary) of two media, such as water and air, are entirely reflected back into the first (internal) medium rather than being refracted into the second (external). It happens when the waves are incident on the interface at a suitably oblique angle and the second medium has a higher wave speed (i.e., lower refractive index) than the first. TIR occurs not only with electromagnetic waves like light and microwaves but also with other types of waves, including sound and water waves. For instance, the water-to-air surface in a typical fish tank, when viewed obliquely from below, reflects the underwater scene like a mirror with no loss of brightness.

To know more about total internal reflection, visit:

https://brainly.com/question/13197033

#SPJ4

A. Jupiter largest and most massive planet in the solar system

Jupiter has a huge permanent storm that looks like a red spot in images

Jupiter has at least 61 moons orbiting it, some of which are very large

Jupiter located closer to the sun than Kuiper Belt

Jupiter came on fifth number from the sun and the Jupiter is the massive planet present in our solar system. It contains the big storms like great red spot. The surface of the Jupiter is gas made giant but the surface of the Jupiter is not solid, but it may have a solid inner core about the size of Earth.

The Jupiter contain at least 61 moons which orbiting the Jupiter . The life on the Jupiter is impossible because the Jupiter contain very much pressure, it has volatile surface and the temperature of the Jupiter is very hot than that of the earth.

So we can conclude that option A is the right answer.

Learn more about Jupiter here: https://brainly.com/question/15044627

#SPJ1

A westward-moving motorcycle increases its speed from 5.0 m/s to 25.0 m/s in 2.5 seconds. Magnitude= direction=

Calculation

The magnitude comes according to the formula (V-U)/T

Here U (initial velocity) = 5 m/s

V (final velocity) = 25 m/s

Time taken (T) = 2.5 s

So, going according to the formula,

we will have the magnitude = (25 – 5)/ 2.5

So, the magnitude is 20/2.5 = 8

So, the magnitude is 8

And since the speed is increasing, hence the direction would be in the same direction as the body is moving. It means the direction is in westward direction.

To know more about magnitude and direction, visit:

https://brainly.com/question/2085280

#SPJ4

Yes, the energy transmission is increased by an object's mass.

When two objects come into touch, they collide. When two items collide, energy is transferred from one thing to the other. Energy is the power to perform tasks (or in more simple terms: energy makes things happen). Any two items that are acting in response to one another create a pair of forces that are of the same size but acting in the opposite direction.

The amount of energy exchanged during a collision depends on the weight and speed of the moving object; bigger objects carry more energy. This explains why truck collisions cause such severe automotive damage. In a collision, the energy carried by the large truck is transferred to the lighter vehicle.

To learn more about energy refer to:   https://brainly.com/question/1932868

#SPJ4

The net force on a crate sliding at an unchanging speed when pushed with a steady force of 75 n is zero.

The total of all forces exerted on an object is known as the net force. A mass can accelerate due to net force. A body is subject to another force whether it is at rest or in motion. When there are a lot of forces acting on a system, the term "net force" is employed.

The total force acting on an object is its net force. Newton's second law, which states that F = ma, where F represents the net force, can be used to compute the net force. The object's mass is given by m. Acceleration is a.

The vector sum of all forces acting on an object is known as the net force. As a result of the fact that a force is a vector and that two forces with identical magnitudes and opposing directions cancel each other out, the net force is the sum of all the forces, or put another way, the net force is the sum of all the forces.

Learn more about net force:

https://brainly.com/question/14361879

#SPJ4

The density of the metal is 0.006 Kg / [tex]cm^{3}[/tex]

We know that,

ρ = m / V

V = l w h

where,

ρ = Density

m = Mass

V = Volume

l = Length

w = Width

h = Height

Given that,

m = 1.5 kg

l = 17.1 cm

w = 3.2 cm

h = 4.5 cm

V = 17.1 * 3.2 * 4.5

V = 246.24 [tex]cm^{3}[/tex]

ρ = 1.5 / 246.24

ρ = 0.006 Kg / [tex]cm^{3}[/tex]

Density is defined as the amount of matter present in an enclosed boundary. It is represented as ρ.

Therefore, the density of the metal is 0.006 Kg / [tex]cm^{3}[/tex]

To know more about Density

https://brainly.com/question/15164682

#SPJ4

first calculate the partial derivatives of the two fromulas for each measured variable. Then you calculate the sum of the products of the errors (Dr, DR, and dh) with the squared corresponding partial derivative.and or the deviation

Example for the length of the mantle:

dm/dR = (R-r)/root(w)

dm/dr = -(R-r)/root(w)

dm/dh = h/root(w)

where w = (R-r)²+h². The squared derivatives are

(dm/dR)² = (R-r)²/w

When it comes to statistics and probability theory, standard deviation is used. It demonstrates the accuracy of your data and is used to measure both variability and diversity.

Standard deviation is calculated by taking the square root of the variance. In contrast to a high standard deviation, which indicates that the entered data points are most likely farther from the mean, a low standard deviation indicates that the entered data points are most likely closer to the mean

to learn more about deviation:

https://brainly.com/question/16555520

#SPJ4

The fur of a sea otter is the densest of any animal, having the most hairs per square inch of any other species. Even while floating in the water, their thick fur keeps the animal warm and dry.

Sea otters decrease heat loss when the water is too cold by floating on their backs with their feet out of the water. To increase their surface area when trying to dissipate heat, sea otters spread their feet out underwater. Sea otters typically spread out or tuck their feet up to maintain body heat. The amount of food available to sea otters would decrease if prey species in their environment declined as a result of changing temperatures.

Learn more about animal here-

https://brainly.com/question/12985710

#SPJ9

As magnification increases, field diameter decreases and objects at the periphery will no longer be in the visible field.

A lens is a piece of transparent material that is typically round in shape with two polished surfaces that are either convex (bulging) or concave on one or both sides (depressed). The curves almost always have a constant radius of curvature since they are spherical.

Learn more about Lens here:

https://brainly.com/question/9757866

#SPJ4

Yes, if my friend moved from Chicago to Buenos Aires, Argentina and said that she has observed constellations that cannot be seen in Chicago, because, two stars in same constellation may be actually very far away from each other.

Constellations are the groups of stars. The constellations you can see at night depend on your location on the Earth and the time of year. Constellations were named after objects, animals, & people long ago. Astronomers today still use the constellations to name stars and meteor showers. A constellation is group of stars that looks like a particular shape in the sky and has been given a name. These stars are far away from the Earth and they are not connected to each other at all. Some stars in a constellation might be close while others are very much far away. But, if you were to draw lines in the sky between the stars like a dot-to-dot puzzle – and use lots of imagination – picture would look like an object, animal, or person.

constellation, in astronomy, any of certain groupings of stars that were imagined—at least by those who named them—to form conspicuous configurations of the objects or creatures in the sky. Constellations are useful in assisting the astronomers and navigators to locate certain stars.

Certain constellations can only be seen in Northern Hemisphere but disappear in Southern Hemisphere, the vice-versa is true as well. The Earth is a globe because constellations appear to shift and disappear due to spherical curvature of the Earth.

To know more about astronomy visit: https://brainly.com/question/5165144

#SPJ4

The smallest, electrically neutral assemblage of energy and matter that we know exists in the universe. it consists of a nucleus surrounded by a cloud of electrons is: an atom

The smallest unit of an element that still retains the distinctive behavior of that element is an: atom

A single atom of an element keep its distinctive behavior, that's because the atom is the smallest unit of the composition of a chemical element

The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.

Learn more about the atom at: brainly.com/question/17545314

#SPJ4

Answer:there is the scetch in the picture

Explanation:

When an object approaches the speed of light then the he objects mass become infinite.

Einstein theory of relativity is actually fairly simple. It is based on two very simple ideas.

relativity describes the situation when.

in these cases Newtonian theory does not work.

But when the speed are much slower than light. And gravity is not too strong. At that point relativity and Newtonian theory are exactly the same.

the mass of an object becomes infinite as the object approaches the speed of light .

To know more about theory of relativity.

https://brainly.com/question/14605604

#SPJ4

By using the drift velocity of the electron, the current flow is 6.02 ampere.

We need to know about drift velocity of electrons to solve this problem. The drift velocity can be determined as

v = I / (n . A . q)

where v is drift velocity, I is current, n is atom number density, A is surface area and q is the charge.

From the question above, we know that

d = 1.572 mm

r = (0.001572 / 2) m

v = 2.29 mm/s = 0.00229 m/s

ρ = 8.92 x 10³ kg/m³

q = e = 1.6 x 10¯¹⁹C

Find the atom density

n = Na x ρ / Mr

where Na is Avogadro's number (6.022 x 10²³), Mr is the atomic weight of copper (63.5 g/mol = 0.635 kg/mol).

n = 6.022 x 10²³ x 8.92 x 10³ / 0.635

n = 8.46 x 10²⁷ /m³

Find the current flows

v = I / (n . A . q)

0.00229 = I / (8.46 x 10²⁷ . πr² . 1.6 x 10¯¹⁹)

0.00229 = I / (8.46 x 10²⁷ . π(0.001572 / 2)² . 1.6 x 10¯¹⁹)

I = 6.02 ampere

For more on drift velocity at: brainly.com/question/25700682

#SPJ4

The linear density of iron along [110] and [111] directions are

[tex]LD(100) = 2.851 nm^{-1[/tex]

[tex]LD(111) = 1.646 nm^{-1}[/tex]

Linear Density = No of atom centered on the direction vector / Length of direction vector.

[tex]LD(100) = \frac{1 atom}{2R\sqrt{2} }\\LD(111) = \frac{1 atom}{2R\sqrt{6} }[/tex]

[tex]R = 0.124 nm[/tex]

So, it becomes,

[tex]LD(100) = \frac{1}{2 * 0.124 \sqrt{2} } \\= > 2.851 nm^{-1}[/tex]

[tex]LD(111) = \frac{1}{2 * 0.124\sqrt{6} } \\ = > 1.646 nm^{-1}[/tex]

Hence, the linear density of iron 110 is 2.851nm⁻¹ and the linear density of iron 111 is 1.646nm⁻¹.

If a material has a non-uniform cross section, the linear mass density is a constant term that allows us to calculate the mass of the material at any given length between x = 0 and x = L. The cgs unit is g/cm whereas the SI unit for linear mass density is kg/m.

The linear density of the string and the tension in the string both affect how quickly a wave moves along a string. A string's linear density is its mass per unit length. In general, a wave's speed is determined by the square root of the medium's elastic property to inertial property ratio.

To learn more about linear density , visit

https://brainly.com/question/17063413

#SPJ4