Addition of a lubricant such as oil to a surface will __ friction ?

Answer:

Velocity is the rate of change of displacement. Acceleration is the rate of change of velocity. Velocity is a vector quantity because it consists of both magnitude and direction. Acceleration is also a vector quantity as it is just the rate of change of velocity.

Explanation:

If no force is exerted on a moving object, it will continue to move at a constant velocity. This is described by Newton's first law of motion, which states that an object will remain at rest or continue to move at a constant velocity in a straight line unless acted upon by an external force. In other words, if no net force acts on an object, the object will maintain its velocity, neither speeding up nor slowing down.

length of V-50 = 49mm

length of V-1 = 49/50mm

= 0.98mm

so,

minor measurement = (M-1) - (V-1)

= 1mm -0.98mm

= 0.02mm

☆ Therefore,

The minor measurement of the vernier scale is 0.02mm.

☆...hope this helps...☆

_♡_mashi_♡_

The statement "the current capacity of a battery increases with an increase in current demand" is False. This is because, as the current demand of a battery increases, the battery's ability to hold its charge decreases and its capacity decreases as well, not increases.

When a battery is used, it releases energy to power whatever device is being used. When the content loaded on the device is low, the demand for current is low, and the battery can sustain the demand for a longer time.

However, when it is high, the battery's demand for current is higher, and the battery can supply energy for a shorter time, meaning that the battery's capacity has decreased due to an increase in current demand.

The battery's ability to hold its charge and supply energy is influenced by several factors, such as temperature, age, charging cycles, and discharge rates. Therefore, a battery's capacity is reduced as the demand for current increases

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Note : Please discard your other answers as they are incorrect. I have personally solved this problem and have attached the appropriate image.

Have a blessed day, if you have any follow-up questions please reach out!

Stay safe!

- Robert

The most likely cause of a change in action potential shape is alterations in ion channel activity, which affect the flow of ions across the cell membrane.

Action potentials are electrical signals generated by excitable cells, such as neurons and muscle cells, to transmit information. The shape of an action potential is determined by the coordinated opening and closing of ion channels, which allow the selective passage of ions across the cell membrane. Any disruption in ion channel activity can lead to changes in the action potential shape.

Several factors can cause alterations in ion channel activity. Mutations in ion channel genes can result in dysfunctional channels that fail to open or close properly. This can lead to prolonged depolarization or repolarization phases, resulting in a change in the action potential shape. Additionally, changes in the concentration of ions, such as potassium or calcium, can impact the activity of ion channels, leading to modifications in the action potential waveform.

External factors, such as drugs or toxins, can also influence ion channel activity and subsequently affect action potential shape. For example, certain medications can block specific types of ion channels, altering the membrane potential and changing the action potential morphology. Similarly, toxins produced by bacteria or other organisms can interfere with ion channel function, leading to abnormal action potentials.

In summary, alterations in ion channel activity caused by genetic mutations, changes in ion concentrations, drugs, or toxins are the most likely causes of changes in action potential shape. These disruptions can affect the flow of ions across the cell membrane and result in modifications to the characteristic waveform of action potentials.

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The required longitude of the certain ship when the time of the day is 12 noon at the Prime Meridian is 5 p.m is 75° West.

The sun is highest in London, but will not pass the ship for another 5 hours.

Given that,

The time of day for a certain ship is 12 noon at the Prime Meridian is 5 p.m.

The ship must be five hours west of Greenwich since the sun goes from east to west.

Each hour of sun motion is 15° of longitude. The ship is located at (5 x 15°) = 75° West longitude.

Thus, the ship's longitude is 75° West.

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The speed of the charge when the distance r₂ from P is 2.5 mm is about 3.80 × 10⁶ m/s. This is because the energy of the charge remains conserved.

The expression for the electric potential energy of two point charges separated by a distance r is given as:

U = k × q₁ × q₂/r

where, U = electric potential energy, k = Coulomb's constant (9 × 10⁹ Nm²/C²)

q₁ and q₂ are the charges

r = separation between the charges

In the given problem, a particle of charge q is fixed at point P, and a second particle of mass m and the same charge q is initially held a distance r₁ from P. The second particle is then released.

Therefore, the electric potential energy of the second particle, when it is held at a distance r₁ from P is given as:

U = k × q²/r₁

Mass of the second particle, m = 20 mg

Let the speed of the second particle when it is a distance r₂ from P be v. The initial energy of the second particle when it is held at a distance r₁ from P is all converted to kinetic energy when it reaches a distance r₂ from P.

Energy gained by the second particle is given by the difference in electric potential energy between the two distances, U = k × q²(1/r₁ - 1/r₂)

At a distance r₂ from P, the kinetic energy of the second particle is given as:

K.E = (1/2) × m × v²

According to the principle of conservation of energy, the total energy of the second particle remains constant.

U + K.E = constant

m × v²/2 + k × q²(1/r₁ - 1/r₂) = k × q²/r₁

v = sqrt(2 × k × q² /r₁ × (1/r₂ - 1/r₁) / m)

Substituting the given values in the above expression,

v = sqrt(2 × 9 × 10⁹ Nm²/C² × (3.1 μC)²/0.9 mm × (1/2.5 mm - 1/0.9 mm) / (20 × 10⁻⁶ kg)) = 3.80 × 10⁶ m/s

Therefore, the speed of the second particle when it is a distance r₂ from P is 3.80 × 10⁶ m/s.

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In simple harmonic motion, the speed is the greatest when: the magnitude of the acceleration is a maximum, the magnitude of the acceleration is a minimum.

In simple harmonic motion, the speed of the object undergoing the motion is greatest when the magnitude of the acceleration is at its maximum. At this point, the object is experiencing the highest rate of change in velocity, resulting in the greatest speed. This occurs when the object is passing through the equilibrium position.
Additionally, the speed is also greatest when the magnitude of the acceleration is at its minimum. At this point, the object is momentarily at the extremes of its displacement and changing direction. The object is momentarily at rest, and its speed is maximum at this instant.Therefore, both options A and C are correct: the speed is the greatest when the magnitude of the acceleration is a maximum and when the magnitude of the acceleration is a minimum.

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Answer:

im not sure what did it say

Explanation:

hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

The option that would NOT suggest an interaction effect is the "Two parallel lines." interaction effect. The correct answer is option(a).

When one independent variable's effect on the dependent variable varies according to the value of another independent variable, this is known as the interaction effect. In other words, the level of the other independent variable determines the impact of one independent variable on the dependent variable. For example, in a study on the effect of a new medication on blood pressure, the interaction effect would occur if the impact of the medication varies depending on the age of the patients.

Age would be the moderating variable in this example. According to the given options, two parallel lines would represent that the two independent variables being analyzed have no effect on the dependent variable, meaning that there is no interaction effect present. Therefore, option A would NOT suggest an interaction effect. The remaining options suggest an interaction effect as they indicate that there is an impact on the dependent variable based on the level of the independent variables.

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Answer:

The lungs are lateral to the heart.

Explanation:

Answer:

lateral

Explanation:

Two of the guinea pig offspring will have long hair.

The allele for short hair is dominant in guinea pigs. This indicates that it can express under both homozygous (HH) and heterozygous (Hh) conditions.

When we cross an hh with an Hh,

(h h) X (H h)

The possible offspring are:

Hh, Hh, hh, hh

Two heterozygous short-haired offspring and two homozygous long-haired offspring.

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Attaching the image file here.

(A) The relationship between current and voltage when resistance is constant represents by graph 2. Option B is correct.

(B) Relationship between current and voltage is direct. Option B is correct.

Resistance is the electric component that regulates the flow of current through the conductors or circuits.

Here,
From ohm's low, we have
Voltage = Current × resistance

As resistance = constant
Voltage ∝ Current

The above expression implies that Voltage becomes directly proportional to the current. So as current increases voltage also increases simultaneously [Option B is correct]. And graph between current and voltage will be a straight line passing through the origin Option B is correct.

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The voltage or potential difference across an electric circuit is directly proportional to the current flowing through the circuit. Thus, the correct options for 1 and 2 are B and B, respectively.

Ohm's law is the description of the relationship between two variables which are current, voltage, and a constant called resistance. The amount of steady current which passes through a large number of materials is directly proportional to the potential difference, or the voltage across the materials or electric circuit.

It can be expressed as: V = IR

where, V is the potential difference across the circuit,

I is the electric current,

and R is the resistance

As voltage is directly proportional to the current. If the voltage is increasing, then the current will also increase and if the voltage decreases then the amount of current through the circuit also decreases.

Therefore, the correct options for 1 and 2 are B and B, respectively.

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Answer:

The Coriolis effect describes the pattern of deflection taken by objects not firmly connected to the ground as they travel long distances around Earth. ... The key to the Coriolis effect lies in Earth's rotation. Specifically, Earth rotates faster at the Equator than it does at the poles.

-Google

Explanation:

The Coriolis effect is an apparent force brought on by the rotation of the earth.

The Coriolis force is an apparent force brought on by the rotation of the earth. In the northern hemisphere, the Coriolis force causes winds to be deflected to the right, and in the southern hemisphere, to the left. It is often referred to as "Ferrel's Law."

A revolving frame of reference causes an apparent effect known as the Coriolis Effect. When an item travelling straight ahead is observed from a non-fixed frame of reference, the effect happens. The Earth, which spins at a constant speed, serves as the moving frame of reference. Due to Earth's rotation, an object travelling in a straight line that is seen from Earth appears to lose its direction.

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Answer:

A

Explanation:

The officer would have had permission regardless of anything else, kind of like letting someone into your house.

Answer:

i think it is C means charlie

Answer:

Resistance to the flow of electricity in wires and resistance to the flow of water in pipes are similar in several ways:

Both are affected by the size of the conductor: In both cases, the resistance to flow is affected by the size of the conductor. A larger diameter wire or pipe will offer less resistance to the flow of electricity or water than a smaller diameter one.

Both are affected by the length of the conductor: The resistance to flow also increases with the length of the conductor. A longer wire or pipe will offer more resistance to the flow of electricity or water than a shorter one.

Both are affected by the material of the conductor: Different materials have different resistances to flow. In electrical wires, metals are commonly used as they have low resistance. In pipes, materials such as copper, plastic, or steel may be used depending on the specific application.

Both can be reduced by minimizing obstructions: Resistance to flow can be reduced in both cases by minimizing obstructions in the path of the flow. In pipes, for example, the use of smooth inner walls and proper pipe bends can help reduce resistance. In electrical wires, minimizing the number of connections and using high-quality connections can help reduce resistance.

Overall, resistance to flow is a fundamental concept that applies to the flow of electricity and water, and the factors affecting resistance are similar in both cases.

Answer:

Explanation:

For every action (or force), there is an equal and opposite action (or force).

Answer:

Explanation:

Time taken by jogger to travel the distance to finishing line = 2.1 / 7.3

= .28767 hr

Bird will keep flying for this time period

distance covered by bird = speed x time

= 29.2 x .28767 km

= 8.4 km .

If both the brake and ABS warning lamps illuminate and power assist is low on an integral ABS system, the probable cause is a loss of hydraulic pressure in the brake system.

When both the brake and ABS warning lamps illuminate and power assist is low on an integral Anti-lock Braking System (ABS) system, it usually indicates a loss of hydraulic pressure in the brake system. This can be caused by a leak in the brake system, a failed master cylinder, or a failed ABS modulator.

The loss of pressure can result in reduced braking performance and may cause the brake pedal to feel hard or spongy. It is important to address this issue promptly and have the brake system inspected and repaired by a qualified technician to ensure safe vehicle operation.

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Your question seems incomplete, but I suppose the question was:

"If both the brake and ABS warning lamps illuminate and power assist is low on an integral ABS system, the probable cause is:"

The straight dough method of bread making is not dependent on the length of time the dough sits to rise. This method involves combining all the ingredients, including the yeast, in one mixing bowl and kneading the dough until it is smooth and elastic.

The dough is then set aside to rise once, for a specific amount of time, usually around an hour or until it has doubled in size. After the first rise, the dough is shaped into loaves or rolls and left to rise again before baking.

In contrast, the sponge dough method involves creating a starter dough, or "sponge," which is left to ferment for a longer period of time, up to 24 hours, before being incorporated into the final dough. The continuous method involves a constantly fermenting dough, while the prime bake method skips the rising process altogether by using chemical leaveners such as baking powder or baking soda.

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Answer:

The direction of friction force is toards north.

Explanation:

A tool box is at rest on the back of a track. The truck is accelerating towards north.

As the frame of reference is acceleratinf so it is a non inertial frame  of reference.

Thus, teh toolkit experineces a pseudo force towards the south direction.

According to the question, the toolbox is at rest so the fiction force is balances by teh psheudoforce, and thus teh friction force is acting toards north.

The term used to describe the energy of a system that is available to do work is free energy.

Free energy is the energy that is available in a particular chemical system to do useful work.

The Gibbs free energy denoted by G is the enthalpy of a system minus the product of its entropy and absolute temperature.

It is referred to as free because the energy is readily available anytime. Free energy is measured in kilojoules per mole (KJ/mol).

Therefore, it can be said that the term used to describe the energy of a system that is available to do work is free energy.

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Answer:

4 m/s south

Explanation:

This is a pretty easy one.

Assume that the car has a reference point ragged x

We also know that the car starts moving at a point 10 m North of X. It moves steadily at a uniform velocity and ended at a position 10 m south of X.

If x is the reference point, we can infer that the car moves a total distance of, 10 m + 10 m.

Thus, the total distance moved by the car is 20 m.

It is also stated that it achieves that distance in 5 seconds.

Velocity is defined as the ratio of distance with respect to the tome taken, i.e V = d/t

Then, the velocity is

V = 20 / 5 = 4 m/s

Considering the fact that the car left and moved towards the south. We can say that it moved 4 m/s South.

Blue light has a greater frequency and carries more energy than red light when compared.

Electromagnetic frequencies that can be seen by human eyes make up visible light. This spectrum excludes ultraviolet and infrared radiation. The wavelengths and frequencies that an object reflects determine the colours we see. Both waves and particles of light exist. It has wave characteristics like amplitude, period, wavelength, and frequency.

The number of times a wave completes a cycle each second is known as its frequency. Hertz, or cycles per second, is the unit of measurement (Hz).

There is more energy in the light the higher the frequency. As a result, its wavelength shrinks.

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Answer:

Design 2

Explanation:

I had this same question

My answer:

"Design 2 is the well-designed one, because the air molecules are the most compact and could protect the individual better than 1,3,and no air bag."

Answer:

dj

Explanation:

dnfbjnkml,;

The four factors of material resistance are temperature, strain rate, stress state, and environment.

Temperature affects the flow of material, strain rate refers to the speed at which it is deformed, stress state is the amount of force applied, and environment relates to the presence of contaminants or corrosive agents.
The four factors of material resistance are temperature, time, applied stress, and strain rate. These factors are important in determining the strength and durability of a material and its ability to resist deformation or failure.Temperature: The temperature of a material can have a significant impact on its strength and resistance to deformation. Higher temperatures can cause a material to soften and weaken, while lower temperatures can make it more brittle and prone to cracking.Time: The duration of an applied load or stress can affect a material's strength and ability to resist deformation. Over time, a material may experience creep, which is a gradual deformation under a sustained load.Applied Stress: The magnitude of an applied stress or load can also affect a material's resistance to deformation. Higher stress levels can cause a material to reach its yield strength or fracture point more quickly.Strain Rate: The rate at which a material is deformed can also impact its strength and resistance to deformation. Higher strain rates can cause a material to behave differently than it would under static loading conditions, and can lead to failure at lower stress levels.

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