What is exerted when atoms collide with the walls of their container?
O gravity
O pressure
O stress
O friction

The magnitudes of the two force quantities after comparing the two quantities agree within experimental uncertainty but do not agree numerically.

One of the most prevalent forms of force is applied force, which is the force we exert on objects with our hands, legs, or any other item. As an illustration, push a chair with some force to move it in a certain direction.

According to Newton's second equation of motion, an object's force is equal to its mass times its acceleration, or F = m × a.

Use Newtons for force, kilograms for mass, and meters per second squared for acceleration when applying this formula.

Given that, time              F(N)               TA(N)

                     t₁                  10.6                 11

                     t₂                 10.4                  10

                     t₃                 10.2                  10

                     t₄                 10.8                  11

                     t₅                 10.6                  11

Thus, The mean value of F is: 10.52 N

The mean value of TA is: 10.6 N

So, the two quantities agree within experimental uncertainty but do not agree numerically.

Thus, the two quantities cannot be compared because the two force probes have different levels of precision.

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Given data:

Length of peldulum is,

Period of pendulum is,

New period of pendulum is,

Formula:

Formula of period of pedulum is as follows:

For old period of pendulum above equation becomes as follows:

Taking square of above equation,

Now, for new period of pendulum,

Taking square of above equation,

Hence,

Taking ratio of equation-(3) and equation-(1),

Therefore, Length of pendulum should be 9L for the period to be 3T seconds.

The efficiency of motor is 90.58%.To determine the efficiency of the motor, we need to calculate the input power and the output power, and then divide the output power by the input power

The input power can be calculated using the formula:

Input Power = Voltage × Current

Given that the voltage is 230 V and the current is 24 A, we have:

Input Power = 230 V × 24 A

Input Power = 5520 W (or 5.52 kW)

The output power of the motor is given as 5 kW (since it is a 5 kW motor).

Now, we can calculate the efficiency:

Efficiency = (Output Power / Input Power) × 100%

Efficiency = (5 kW / 5.52 kW) × 100%

Efficiency ≈ 90.58%

Therefore, the efficiency of this motor is approximately 90.58%.

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The electric power of an electric circuit with a current of 2.5 A and voltage of 120 V is 300 watts.

Electric power is the rate at which work has to be done or the energy is transformed into an electrical circuit to work. Power is a measure of how much energy is used in a span of time. The SI unit of power is watt (W). Power can be defined as the product of voltage and electric current.

P = VI

where, P is the power,

V is the voltage or potential difference,

I is the electric current

P = VI

P = 120 × 2.5

P = 300 watts

Therefore, the electric power in the circuit will be 300 watts.

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Answer:

can you put on a clearer image this one is hard to see

If a Catatlyst was added the values affected would be 2, 3, 4

A catalyst is a substance that speeds up the rate of a chemical reaction without undergoing any permanent change itself. It facilitates the reaction by providing an alternative pathway with lower activation energy, which allows the reaction to occur more readily.

Catalysts work by interacting with the reactant molecules and weakening the existing bonds or creating new ones, making it easier for the reaction to proceed.

Catalysts are typically specific to certain reactions and can be used in small amounts relative to the reactants. They play a crucial role in many industrial processes and are essential for efficient chemical transformations.

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The balanced equation for the given unbalanced chemical reaction is:

\(C_3H_6O_2 +\frac{7}{2} O_2 \longrightarrow 3CO_2 +3H_2O\)

A chemical equation can be defined as a representation of a chemical reaction in which symbols of the substances, participated reactants, formed products, and an arrow showing the direction of the reaction is involved.

A balanced equation in which the number of atoms of each element reactants and products is equal in the equation of a chemical equation.

The law of conservation of mass should be obeyed while balancing a chemical equation. The total mass present on the reactant side should be equal to the total mass on the product side in a balanced chemical equation.

The balanced chemical equation for a given reaction is:

\(C_3H_6O_2 +\frac{7}{2} O_2 \longrightarrow 3CO_2 +3H_2O\)

Therefore, missing coefficients O₂, CO₂ and H₂O are 7/2, 3 and 3 respectively.

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The observation that electromagnetic radiation with energy above a certain value can eject electrons out of a metal is a piece of evidence that they have particle-like properties.

The observation that electromagnetic radiation with energy above a certain value can eject electrons out of a metal is a piece of evidence that they have particle-like properties.

This observation that electromagnetic radiation behaves like particles is known as the photoelectric effect.

It provides evidence that electromagnetic radiation exhibits particle-like properties. When EMR with sufficient energy (above a certain threshold) interacts with a metal surface, it can cause the ejection of electrons from the metal.

This behavior indicates that EMR behaves as discrete packets of energy called photons, which transfer their energy to the electrons and cause their release. The photoelectric effect supports the particle nature of EMR and is a fundamental concept in the field of quantum mechanics.

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Explanation:

then the

speed decreases

Answer:

It gets refracted,

Explanation:

Because i did a couple different searches.

The name of my community service is “Feed the Homeless”. The aim of this program is to provide nutritious food and basic necessities to the homeless community in my city. The homeless community faces various challenges and difficulties in their everyday life.

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Answer:

Right

Explanation:

Coil move right yes

Answer:

E. Coefficient of linear expansion

Answer:

10-

Step-by-Step Explanation:

Answer:

Explanation:

Force = Mass * acceleration due to gravity.

Given

Mass of the paratrooper = 57kg

Acceleration due to gravity = 9.81m/s²

Required

Force pulling him down

Substitute unto formula;

F = 57 * 9.81

Force = 559.17 N

Hence the force pulling him down is 559.17N

The force pulling the paratrooper as he falls down is 558.6 N.

The given parameters;

The force pulling the paratrooper is force of gravity and the magnitude can be determined by applying Newton's second law of motion as shown below;

F = mg

F = 57 x 9.8

F = 558.6 N

Thus, the force pulling the paratrooper as he falls down is 558.6 N.

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The nature of science is an extensive and multifaceted concept that refers to various qualities, including its subject matter, methodology, principles, and theories.

It is a process of systematic inquiry that aims to explain the natural world through empirical observation, testing, and interpretation.

Science is characterized by its openness to criticism, objectivity, and the search for evidence to support or refute hypotheses and theories.

Science is dynamic and continuously evolving, with new discoveries, theories, and innovations that challenge our understanding of the world around us.

The nature of science encompasses several key concepts, including the use of empirical evidence, peer review, and the scientific method.

Empirical evidence refers to observable, measurable, and testable phenomena that can be subjected to scientific inquiry.

Peer review is the process by which scientific findings are evaluated by other experts in the field, ensuring their accuracy and validity.

The scientific method is a structured approach to inquiry that involves formulating hypotheses, testing them through experimentation or observation, and drawing conclusions based on the data collected.

Scientific knowledge is tentative and provisional, meaning that it is subject to change in the light of new evidence or findings.

As a result, science is a self-correcting process that relies on continued experimentation, observation, and testing to refine and expand our understanding of the natural world.

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Answer:

because the gravity of the earth

It is the heart

if not im sorry

According to Chargaff's rule, the amounts of adenine (A), thymine (T), and guanine (G) in the DNA molecule are equal to each other. The amounts of cytosine (C) and guanine (G) are also equal.

Erwin Chargaff was a biochemist, author, Bucovinian Jew who immigrated to America during the Nazi era, and professor of biochemistry at Columbia University's medical school.

Chargaff found patterns among the four bases, or chemical building blocks, of DNA, which are directly related to DNA's function as the genetic material of living things.

He was born in Austria-Hungary. Heraclitean Fire: Sketches from a Life Before Nature, an autobiography he penned, received positive reviews.

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Energy is a fundamental concept in physics that represents the ability or capacity of a system to do work.

It is a scalar quantity, meaning it has magnitude but no specific direction. Energy exists in various forms and can be converted from one form to another. The characteristics of energy include:

1. Forms of Energy: Energy can exist in different forms such as kinetic energy (energy of motion), potential energy (stored energy), thermal energy (heat), chemical energy, electrical energy, and many more.

2. Conservation of Energy: The law of conservation of energy states that energy cannot be created or destroyed; it can only be transformed from one form to another. The total amount of energy in a closed system remains constant.

3. Transfer and Conversion: Energy can be transferred from one object to another or converted from one form to another. For example, electrical energy can be converted into light energy in a light bulb.

4. Units of Measurement: Energy is typically measured in joules (J) in the International System of Units (SI). Other common units include kilowatt-hours (kWh) for larger quantities of energy and calories (cal) for thermal energy.

5. Energy and Work: Energy is closely related to the concept of work. When work is done on an object, energy is transferred to it or from it, resulting in a change in its energy state.

Understanding the nature and characteristics of energy is crucial in various fields, including physics, engineering, and environmental science, as it plays a central role in explaining and analyzing various phenomena and processes.

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An object with an initial velocity of 5m/s has a constant acceleration of \(2m/s^2\) .The object has traveled a distance of 50 meters when it is speed is 15m/s how far has us travelled​

To find the distance traveled by the object, we can use the equation:

\(v^2 = u^2 + 2as\)

where v is the final velocity, u is the initial velocity, a is the acceleration, and s is the distance traveled.

Given:

Initial velocity (u) = 5 m/s

Acceleration (a) = 2\(m/s^2\)

Final velocity (v) = 15 m/s

We need to solve for s.

Rearranging the equation, we have:

s =\((v^2 - u^2)\) / (2a)

Substituting the given values, we get:

s = \((15^2 - 5^2)\)/ (2 * 2)

s = (225 - 25) / 4

s = 200 / 4

s = 50 m

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Hooke's Law can be given as follows sometimes:

The restoring force of a spring is equal to the spring constant multiplied by the displacement from its normal position:

F = -kx

Where, F = Restoring force of a spring (Newtons, N)

k = Spring constant (N/m)

x = Displacement of the spring (m)

The negative sign relates to the direction of the applied force and by convention, the minus or negative sign is present in F = -kx. The restoring force F is directly proportional to the displacement (x), according to Hooke's law. When the spring is compressed, the displacement (x) is negative. It is zero when the spring is at its original length and positive when the spring is extended.

Practically, Hooke's Law is applicable only within a limited frame of reference, and through experimenting, this statement proves to be true. Because materials cannot be compressed beyond a certain size or expanded beyond a certain size without some permanent deformation or change of their original state.

The law only applies under some conditions such as a limited amount of force or deformation. Factually, many materials will noticeably deviate from Hooke's law even before those elastic limits are reached.

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The specific latent heat of fusion of ice obtained from this experiment is approximately 583.33 J/g.

To determine the specific latent heat of fusion of ice using the given experiment, we need to consider the energy transferred during the process.First, we need to calculate the energy lost by the water to cool down from 25 °C to 0 °C. The energy lost is given by:

Q1 = m1 * c * ΔT1

Where:

m1 = mass of water = 100 g

c = specific heat capacity of water = 4.2 J/g °C

ΔT1 = change in temperature = (0 °C - 25 °C) = -25 °C

Q1 = 100 g * 4.2 J/g °C * (-25 °C) = -10,500 J

Next, we calculate the energy released by the water to freeze and cool the remaining ice. The energy released is given by:

Q2 = m2 * Lf

Where:

m2 = mass of ice = 18 g

Lf = specific latent heat of fusion of ice (to be determined)

Q2 = 18 g * Lf

Since energy is conserved in the system, the energy lost by the water (Q1) is equal to the energy released by the water (Q2):

-10,500 J = 18 g * Lf

Solving for Lf:

Lf = -10,500 J / 18 g = -583.33 J/g

The negative sign indicates that energy is being released during the process of freezing.

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Answer:

after 2 seconds its velocity is -20 m/s. after 3 seconds its velocity is -30 m/s. after 10 seconds its velocity is -100 m/s.

Explanation:

This is my answer.

Answer:

The ratio of the new potential energy to the potential energy before the insertion of the dielectric is 0.58

Explanation:

Given that,

Length of plates = 8 cm

Width = 5.52 cm

Distance = 1.99 cm

Dielectric constant = 2.6

Length = 4.4 cm

Potential = 0.8 V

We need to calculate the initial capacitance

Using formula of capacitance

\(C=\dfrac{\epsilon_{0}A}{d}\)

Put the value into the formula

\(C=\dfrac{8.85\times10^{-12}\times8\times5.52\times10^{-4}}{1.99\times10^{-2}}\)

\(C=1.96\times10^{-12}\)

We need to calculate the final capacitance

Using formula of capacitance

\(C'=\dfrac{\epsilon_{0}A_{1}}{d}+\dfrac{k\epsilon_{0}A_{2}}{d}\)

Put the value into the formula

\(C'=(\dfrac{8.85\times10^{-12}}{1.99\times10^{-2}})((4.4\times5.52)+(3.6\times5.52)2.6)\times10^{-4}\)

\(C'=3.37\times10^{-12}\)

We need to calculate the  ratio of the new potential energy to the potential energy before the insertion of the dielectric

Using formula of energy

\(\dfrac{E}{E'}=\dfrac{\dfrac{1}{2}CV^2}{\dfrac{1}{2}C'V^2}\)

Put the value into the formula

\(\dfrac{E}{E'}=\dfrac{1.96\times10^{-12}}{3.37\times10^{-12}}\)

\(\dfrac{E}{E'}=0.58\)

Hence, The ratio of the new potential energy to the potential energy before the insertion of the dielectric is 0.58

Answer:

1.2 mi/hr/sec

Explanation:

a = Vf - Vi / t (formula)

-----------------------------------

     6mi/hr - 0 mi/hr        6 mi/hr

a = ____________ =    _______ = 1.2 mi/hr/sec

              5 sec                 5 sec

The potential energy of the roller coaster is 176,400 J (joules).

The potential energy of an object is given by the formula PE = mgh, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height or vertical position of the object.

In this case, the roller coaster is at a peak of 20m and has a mass of 900kg. The acceleration due to gravity, g, is approximately 9.8 \(m/s^2\).

Using the formula, we can calculate the potential energy:

PE = mgh

= (900 kg)(9.8 \(m/s^2\))(20 m)

= 176,400 J

Therefore, the potential energy of the roller coaster is 176,400 J (joules).

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