In the apple-pulling-the orange sequence in this chapter, what is the force that accelerates the system across the floor?.

Answer:

I think B) is uncorrect

Explanation:

As A) p=w/t so it's correct relation

C) power depend on time and work as work is distance multiple force so it refer to velocity

D) the powerful mean much work in a few time

Answer:

graph 1

Explanation:

When it comes to a graph showing "constant acceleration," the line should be straight and upward (positive acceleration) or straight and downward (negative acceleration). The variables for acceleration are time and velocity. The independent variable (time) should be placed on the x-axis while the dependent variable (velocity) should be placed on the y-axis. As time increases, the velocity increases the same way. It doesn't slow down or changes. This makes it constant. They are also directly proportional to each other. This is evident on the first graph.

No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.

This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.

i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.

ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.

The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.

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Answer:

Yes! Thinking about it graphically a position vs time graph models meters per second in most cases, making every point on the line have the units m/s. If we want the find the slope we are finding the change between each point and those units would change to m/s/s or m/s^2 giving us the same units for acceleration. Simply put, slope of a velocity graph gives us acceleration.

Explanation:

Answer:

Im pretty sure its kingdom

Explanation:

I have a test with the same question and I got it right putting the answer as kingdom.

Given data

*The given initial velocity is u = 0 m/s

*The given acceleration is a = 7 m/s^2

*The given final velocity is v = 25 m/s

The formula for the time taken to reach his final velocity is given by the kinematic equation of motion as

Substitute the known values in the above expression as

Thus, the time taken to reach his final velocity is t = 3.57 s

Answer:

\(F_c = \frac{KQ_1Q_2}{R^2}\)

Explanation:

Coulomb’s law is given as;

\(F_c = \frac{KQ_1Q_2}{R^2}\)

where;

F is the electric force between q₁ and q₂

k is the coulomb’s constant  = 9 x 10⁹ Nm²/C²

r is the distance between the two charges

q₁ and q₂ are the two charges

Therefore, the coulomb’s law is given as \(F_c = \frac{KQ_1Q_2}{R^2}\)

A frictionless pendulum released from 65 degrees with the vertical will vibrate with the same frequency as if it were released from 5 degrees with the vertical because the period is independent of the amplitude and mass.

The given statement is False.

A force from outside acts on a frictionless pendulum to cause it to move, transferring energy to the pendulum. A frictionless pendulum cannot be regarded as a closed system.

The entropy of the universe will not be impacted by the swing of a frictionless pendulum. This is so that a frictionless pendulum can move from its initial position to its final state through a reversible thermodynamic process.

The resonant mechanism supporting this type of pendulum has a single resonant frequency. Frequency is the measure of how many oscillations occur in a second. F or n is used to indicate it.

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the right answer of the question is true

The axial resistance of an axon is calculated using the formula R = ρL/A, where ρ is the resistivity, L is the length, and A is the cross-sectional area. In this case, the axial resistance is 11.28 MΩ.

The resistance along the axon is calculated using the following formula:

R = ρL/A

where:

R is the resistance in ohms

ρ is the resistivity in ohms per meter

L is the length in meters

A is the cross-sectional area in meters squared

In this case, we have:

ρ = 1.6 x 107 Ω.m

L = 0.5 mm = 0.0005 m

A = πr² = π(5 x 10-6)² = 7.854 x 10-13 m²

Therefore, the resistance is:

R = ρL/A = (1.6 x 107 Ω.m)(0.0005 m) / (7.854 x 10-13 m²) = 11.28 MΩ

Therefore, the axial resistance of the axon is 11.28 MΩ.

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Answer:

A

Explanation:

In a wave phenomenon, energy can move from one location to another, yet the particles of matter in the medium return to their fixed position. A wave transports its energy without transporting matter.

The electron domain and molecular geometries of SCl2 are given as follows: Electron Domain Geometry :The electron domain geometry of SCl2 is trigonal bipyramidal.

This is due to the presence of two bonded atoms and one lone pair around the sulfur atom.

The two bonded atoms and the lone pair of electrons are found in the axial positions of the trigonal bipyramidal geometry.

The geometry of SCl2 is a result of VSEPR theory.

Molecular Geometry: The molecular geometry of SCl2 is bent or V-shaped.

The bond angles in the molecule are approximately 103° due to the presence of a lone pair of electrons.

The bond angle of the two bonded atoms in the axial position is about 180°.

The molecular geometry of SCl2 is determined by the number of bonding groups around the sulfur atom.

A brief note on SCl2:Sulfur dichloride (SCl2) is a colorless, fuming gas with a rotten-egg odor.

It is used as a chemical intermediate in the production of other chemicals.

The chemical structure of SCl2 comprises a sulfur atom surrounded by two chlorine atoms.

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The step which ordinary people can take to minimize the effects of earthquakes and volcanoes and prevent the loss of human life is through awareness and warning systems by the appropriate authorities.

This is referred to as the process which involves the sudden shaking of the ground as a result of the passage of seismic waves through Earth's rocks.

Its effect with that of volcanoes can be reduced by creating the necessary awareness and warning systems so that the citizens adopt land use practices and building codes best suited for areas prone to this type of condition.

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Answer:

Explanation:

The series circuit with two light bulbs will illuminate more than the series with one light bulb because two light bulbs will have more energy as compared to one light bulb.

Answer:

Velocity as a Vector Quantity

=Because the person always returns to the original position, the motion would never result in a change in position. Since velocity is defined as the rate at which the position changes, this motion results in zero velocity. ... As such, velocity is direction aware.

Explanation:

please mark me brainliest please.

The least possible uncertainty in a measurement of the speed of an electron in an atom of lead, expressed as a percentage of the average speed, is approximately 0.85%.

The uncertainty in the measurement of the speed of an electron can be determined using the Heisenberg uncertainty principle, which states that there is a fundamental limit to the precision with which certain pairs of physical properties, such as position and momentum, can be known simultaneously. Mathematically, the uncertainty principle is expressed as:

\(\(\Delta x \cdot \Delta p \geq \frac{h}{4\pi}\)\)

where \(\(\Delta x\)\) is the uncertainty in position, \(\(\Delta p\)\) is the uncertainty in momentum, and h is the reduced Planck's constant.

In this case, we are interested in the uncertainty in the speed of the electron, which is related to its momentum. The momentum of an electron can be approximated as \(\(p = m \cdot v\)\), where m is the mass of the electron and v is its velocity. Since the mass of the electron remains constant, the uncertainty in momentum can be written as:

\(\(\Delta p = m \cdot \Delta v\)\)

To find the uncertainty in velocity, we can rearrange the equation as:

\(\(\Delta v = \frac{\Delta p}{m}\)\)

Now, we can substitute the values given in the problem. The mass of an electron is approximately \(\(9.10938356 \times 10^{-31}\)\) kg, and the average orbital speed is \(\(1.8 \times 10^8\)\) m/s. The uncertainty in velocity can be calculated as:

\(\(\Delta v = \frac{\Delta p}{m} = \frac{\frac{h}{4\pi}}{m} = \frac{h}{4\pi \cdot m}\)\)

Substituting the known values, we get:

\(\(\Delta v = \frac{6.62607015 \times 10^{-34}}{4\pi \cdot 9.10938356 \times 10^{-31}} \approx 2.20 \times 10^{-3}\) m/s\)

Finally, we can express the uncertainty in velocity as a percentage of the average speed:

\(\(\text{Uncertainty \%} = \frac{\Delta v}{\text{Average speed}} \times 100 = \frac{2.20 \times 10^{-3}}{1.8 \times 10^8} \times 100 \approx 0.85\%\)\)

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Answer:

.

Explanation:

1. The law of corresponding states that at the same reduced conditions (expressed in terms of reduced temperature and pressure), different gases will exhibit similar behavior in terms of their compressibility factor (Z). This law allows gases to be compared and studied based on their reduced properties rather than their individual molecular characteristics.

2. Real gases may behave as ideal gases under conditions of low pressure and high temperature. When the pressure is low and the intermolecular forces between gas molecules are weak, the gas molecules are far apart and their volume becomes negligible. Additionally, at high temperatures, the kinetic energy of the gas molecules is significant, leading to increased randomness and less interaction between the molecules.

1. The law of corresponding states establishes a relationship between the behavior of different gases by comparing their reduced properties. The reduced temperature (Tr) is the actual temperature divided by the critical temperature (Tc), and the reduced pressure (Pr) is the actual pressure divided by the critical pressure (Pc). By plotting Z, the compressibility factor, against Pr and Tr, gases of different compositions can be compared on a single graph. The law states that gases with similar values of Z at the same reduced conditions will exhibit similar behavior, indicating a deviation from ideal gas behavior.

2. Real gases deviate from ideal gas behavior due to intermolecular forces and the finite volume of gas molecules. However, under certain conditions, these deviations become negligible, and the gas behaves as an ideal gas. When the pressure is low, the gas molecules are far apart, and their volume is relatively small compared to the available space. This reduces the impact of intermolecular forces and makes the gas behave similarly to an ideal gas. Similarly, at high temperatures, the kinetic energy of gas molecules overcomes the attractive forces between them, resulting in less interaction and a closer approximation to ideal gas behavior.

3. a. In the saturation envelope of a mixture of methane (10%) and ethane (90%), the envelope represents the range of conditions (temperature and pressure) at which the mixture exists as a vapor and liquid in equilibrium. Due to the difference in molecular properties, the saturation envelope for this mixture will be different from that of pure methane or ethane. The composition of the mixture influences the temperature and pressure ranges at which the transition from vapor to liquid occurs.

  b. In the saturation envelope of a mixture of ethane (50%) and pentane (50%), the composition of the mixture plays a significant role. The saturation envelope for this mixture will exhibit a different temperature and pressure range compared to the individual components. The presence of different molecules alters the intermolecular interactions and leads to changes in the phase transition behavior.

4. The five main processes during the processing of natural gas are:

  a. Exploration and Production: This involves locating and extracting natural gas reserves from the earth.

  b. Gathering and Transportation: Natural gas is collected from multiple wells and transported via pipelines or liquefied natural gas (LNG) carriers to processing plants or distribution points.

  c. Processing and Treatment: Natural gas goes through various processes to remove impurities, such as water, sulfur compounds, and other contaminants.

  d. Storage: Natural gas may be stored in underground facilities or LNG tanks for later use or transportation.

  e. Distribution and Utilization: Natural gas is distributed through pipelines to residential, commercial, and industrial consumers for various applications such as heating, cooking, and electricity generation.

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Define the following: 1. Law of corresponding states. (2 marks) 2. Under what conditions the real gas may behave as an ideal gas. (2 marks) 3. Please explain qualitatively, the difference between the saturation envelope of the following mixtures: (4 marks) a. Methane and ethane, where methane is 10% and ethane is 90%. b. Ethane and pentane, where ethane is 50% and pentane is 50%. 4. List down the five main processes during the processing of natural gas. (2 marks)

Answer:

30 J

Explanation:

You have to transform g in kg, so 600 g=0,6 kg

the kinetic energy value is

K= ½ mv² so it is K=½ (0.6×100)=30 J

\(\text{Kinetic energy,}\\\\~~~~~~E_k = \dfrac 12 mv^2\\\\~~~~~~~~~~=\dfrac 12 \times 6\times 10^{-1} \times 10^2~~~~~~~;[m = 600 g = 600 \times 10^{-3}~ \text{kg} = 6\times 10^{-1}~ \text{kg}]\\\\~~~~~~~~~~=\dfrac{60}2\\\\~~~~~~~~~~= 30~ J\)

Answer:

79%

Explanation:

Data obtained from the question include the following:

Input temperature = 100°C

Output temperature = 22°C

Efficiency =.?

Next, we shall convert celsius temperature to Kelvin temperature.

This is illustrated below:

T(K) = T (°C) + 273

Input temperature = 100°C

Input temperature in Kelvin = 100°C + 273 = 373K

Output temperature = 22°C

Output temperature in Kelvin = 22°C + 273 = 295K

Finally, we shall determine the efficiency of the locomotive as follow:

Efficiency = output /input x 100

Output = 295K

Input = 373K

Efficiency =?

Efficiency = output /input x 100

Efficiency = 295/373 x 100

Efficiency = 79%

Therefore, the efficiency of the locomotive is 79%.

Answer:

The answer is .209

Explanation:

I am unable to show the work for this as I did it online but I can assure you it is correct

The velocity of first object after the collision is 16.62cm/s and the velocity of second object after collision is 32.783cm/s.

Given initial mass of object (m1) = 26g = 26x10-3kg

initial velocity of object (u1) = 19cm/s = 0.19m/s

mass of second object (m2) = 11g = 11x10-3kg

initial velocity of second object (u2) = 15cm/s = 0.15m/s

Let the velocity of first object after collision = v1

the velocity of second object after collision = v2

These objects are elastically collided. Then from law of conservation of momentum we can see that m1u1+m2u2 = m1v1+m2v2

Here kinetic energy is also conserved. Then

1/2m1u1^2 + 1/2m2u2^2 = 1/2m1v1^2 + 1/2m2v2^2

Then v1 = (m1-m2)/(m1+m2)×v1 + 2×m2/(m1+m2)×v2

v1 = (26-11)/(26+11)×(19) + 2×(11)/(26+11)×(15)

v1 = 7.702 + 8.918 = 16.62cm/s

Then v2 = 2×m1/(m1+m2)×v1 + (m2-m1)/(m1+m2)×v2

v2 = 2×(26)/(26+11)×(19) + (11-26)/(26+11)×(15)

v2 = 26.702 + 6.081 = 32.783cm/s

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The volume of the material would change by 0.00012%.

Material is anything that has physical existence and can be perceived by one or more of the five senses. It is anything that has mass and occupies space. Examples of materials include wood, metal, plastic, paper, fabric, glass, stone, water, air, and living organisms.

The coefficient of volume thermal expansion (β) is related to the coefficient of linear thermal expansion (α) by the equation β = 3α. Therefore, the value of β for the given material would be 3(4 × 10-5K-1) = 0.00012K-1.
This means that for every degree Kelvin of temperature change, the volume of the material would change by 0.00012%.

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Answer:

The loudness of sound is most closely related to

The pressure within a sound wave determines the loudness of the sound. In this lesson, learn how to calculate the sound pressure level of a sound wave and what this measurement represents.

Explanation:

Answer:

B

Explanation:

If the liquid leaked, there would be less pressure and thus less force which is only reflected by one answer choice.

The total weight of the riders lifted into air is determined as 10,290 N.

The total weight of the riders lifted into air is calculated by applying the following kinematic equation as shown below.

Mathematically, the total weight of the riders is calculated as follows;

W = Nmg

where;

W = ( 15 ) ( 70 kg ) ( 9.8 m/s² )

W = 10,290 N

Thus, the total weight lifted by the rider is a function of the individual mass of the riders.

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