In the the table there is 20 kj of coal, how much energy in joules is 1g of coal?

Answer:

I think its 25.51 m!!

Explanation:

Answer:

Measuring the volume of an irregularly shaped object using geometry is often difficult and complicated. The easiest way to do this is by using the water displacement method. Often taught in chemistry or other science classes, this method is known for its simplicity and accuracy.

Explanation:

Measuring the volume of an irregularly shaped object using geometry is often difficult and complicated. The easiest way to do this is by using the water displacement method.

Shortest distance between two point are called as displacement, or we can say that when a body moves between two points the total  lengths between two points are called as distance but the shortest distance between two point is called as displacement. Displacement is measured in meter and it is a vector quantity.  Displacement may became zero but distance never became zero.

In above problem we cam say that in a race car start form a point and reaches at the same point then it's displacement is zero because  there is no shortest distance. Displacement is measured in meter and it is a vector quantity.  Displacement may became zero but distance never became zero.

Therefore,Measuring the volume of an irregularly shaped object using geometry is often difficult and complicated. The easiest way to do this is by using the water displacement method.

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Answer:

the action of investigating something or someone; formal or systematic examination or research.

Explanation:

This definition is provided by Oxford Languages

Answer: The sole

Explanation: Definetely the sole

Answer:

D. 20 N

Explanation:

Force = mass(m) × acceleration due to gravity (g)

Force = 2kg × 10m/s²

Force = 20N

The maximum velocity of a particle in simple harmonic motion can be calculated using the formula:

Vmax = 2πfA

Where Vmax is the maximum velocity, f is the frequency of oscillation, and A is the amplitude.

In this case, the amplitude is given as 2 m and the frequency is given as 2 cycles per second.

First, we need to convert the frequency from cycles per second to radians per second. Since there are 2π radians in one cycle, we can multiply the frequency by 2π to convert it to radians per second:

2 cycles per second * 2π radians per cycle = 4π radians per second

Now we can substitute the values into the formula:

Vmax = 2π * 4π * 2

Simplifying:

Vmax = 16π² m/s

So the maximum velocity of the particle is 16π² m/s.

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Answer:

Thermosphere A,B

Mesosphere B,C,D

Stratosphere D,E,F

Troposphere G

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Bose-Einstein statistics apply to particles called bosons, which have integer spins, and can occupy the same quantum state. Fermi-Dirac statistics apply to particles called fermions, which have half-integer spins and are subject to the Pauli Exclusion Principle, meaning they cannot occupy the same quantum state.

Classical particles follow the laws of classical mechanics, whereas quantum particles obey the principles of quantum mechanics. In classical mechanics, particles have well-defined positions and velocities, while quantum particles are described by wave functions that determine the probabilities of their positions and momenta.
Bose-Einstein statistics apply to particles called bosons, which have integer spins, and can occupy the same quantum state. Fermi-Dirac statistics apply to particles called fermions, which have half-integer spins and are subject to the Pauli Exclusion Principle, meaning they cannot occupy the same quantum state.
A transition from Fermi-Dirac to Maxwell-Boltzmann statistics occurs when the quantum effects become negligible. This typically happens at high temperatures or low particle densities, where the particles behave more classically. The Boltzmann distribution can be considered a limiting case of the Fermi-Dirac distribution under these conditions.
For a system with only three particle states (e1, e2, e3), the maximum number of fermions is three. This is because, according to the Pauli Exclusion Principle, each fermion must occupy a unique quantum state.
The entropy of an ideal fermion gas can be shown to agree with the Third Law of Thermodynamics, which states that the entropy of a system approaches zero as its temperature approaches absolute zero. In an ideal fermion gas, at absolute zero, all fermions occupy their lowest energy states, and the system's entropy reaches its minimum value, consistent with the Third Law.

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Answer:

v=s/t

s=vt

t=s/v

t=(120×10‐³)/172.8

(the distance meters has been changed to kilometres)

t=1/1440 hrs

Given ,

When the eye is slightly moved in any direction after concentrating, the crosshairs should appear to pass over the item observed. If they don't, parallax is present.

If accurate work is to be done, this effect must be removed by refocusing the objective lens, the eyepiece, or both.

The apparent displacement or difference in the apparent direction of an object as observed from two different positions other than those directly across from the object is known as parallax. the angle between two locations on the earth's orbit where a celestial body's orientation is measured.

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Answer:

The answer of this question is

Explanation:

1.5 kg mass moving at 8.5 m/s (N).

Answer:  An effect of continental drift is causing tectonic plates resting upon the convecting mantle to move which results in natural disasters like earthquakes, volcanic eruptions, and more.

Answer:

Net force = 10 N in downward direction

Explanation:

Given that,

Upward force = 10 N

Downward force = 20 N

Let downward is negative and upward is positive.

Net force = 10+(-20)

= -10 N

So, the net force is 20 N and it is acting in downward direction.

Answer: A

Explanation:

A restoring force and an equilibrium position are closely related. The restoring force is responsible for bringing an object back to its equilibrium position when it is displaced.

When an object is in its equilibrium position, it experiences a net force of zero. This means that the forces acting on the object are balanced, resulting in a stable position. However, if the object is displaced from its equilibrium position, a restoring force comes into play. The restoring force is a force that acts in the opposite direction of the displacement, aiming to restore the object back to its equilibrium position.

Mathematically, the restoring force is proportional to the displacement from the equilibrium position. It follows Hooke's Law, which states that the force exerted by a spring is directly proportional to the displacement of the spring from its equilibrium position. This relationship is given by the equation F = -kx, where F is the restoring force, k is the spring constant (a measure of the stiffness of the system), and x is the displacement from the equilibrium position.

In summary, a restoring force and an equilibrium position are related in that the restoring force acts to bring an object back to its equilibrium position when it is displaced. This force is proportional to the displacement and follows Hooke's Law for systems like springs.

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1. Five major external forces that affect organizations are economic, social, cultural, demographic, and technological. Economic factors such as inflation and interest rates can impact a company's profitability and purchasing power. Social factors like changing consumer preferences and lifestyles can influence demand for products and services.

Cultural factors like values and beliefs can shape consumer behavior and market trends. Demographic factors such as population size and age distribution can affect target markets.

Technological factors like advancements in automation or digitalization can disrupt industries and create new opportunities. These external forces shape the business environment and organizations must monitor and adapt to them to stay competitive.

2. Gathering competitive intelligence is crucial for businesses because it provides valuable insights about their competitors' strategies, strengths, weaknesses, and market position.

By understanding the competitive landscape, businesses can identify opportunities and threats, make informed decisions, and develop effective strategies.

Competitive intelligence helps businesses stay ahead of their competitors, anticipate market trends, identify emerging technologies, and improve their own products or services. It allows businesses to benchmark their performance, evaluate their competitive advantage, and identify areas for improvement.

Ultimately, gathering competitive intelligence empowers businesses to make proactive and strategic decisions that can lead to sustainable growth and competitive advantage.

3. In business, various economic variables need to be monitored as they have significant impacts on strategy applications. Some important economic variables include GDP (Gross Domestic Product), inflation rate, exchange rates, interest rates, consumer spending, unemployment rate, and industry-specific factors like raw material prices or energy costs.

Monitoring these variables helps businesses understand the overall economic conditions, identify market opportunities, and assess potential risks. For example, a high inflation rate may impact pricing strategies, while a favorable exchange rate can benefit export-oriented businesses.

By monitoring economic variables, businesses can adapt their strategies accordingly and make informed decisions to navigate the dynamic business environment.

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The wavelength of the photon with mass m=9.11×10⁻³¹kg and the transition taking place between n=6 and the n=7 state is λ=570.4nm.

The photon or light has dual nature of light(i.e. the light has matter and wave nature). The wavelength of the wave is defined as the distance between two crests and two waves.

From the given, The wavelength of the light makes the electron pumps form the nth state to (n+1)th state.

mass of the electron, m=9.11×10⁻³¹kg

nth state = 6

n+1 state =7

speed of light(c) = 3×10⁸ m/s

L = 1.5×10⁻⁹

Wavelength(λ) = 4mcL²/(2n+1)π(h/2π), where h is the Planck's constant and is equal to 6.626×10⁻³⁴.

λ = 4mcL²/(2n+1)π(h/2π)

  = 4×9.11×10⁻³¹×3×10⁸ ×(1.5×10⁻⁹)² / (2×6+1)π( 6.626×10⁻³⁴/2π)

 = 4×9.11×10⁻³¹×3×10⁸ ×(1.5×10⁻⁹)² / (2×6+1)×3.14( 6.626×10⁻³⁴/6.28)

 = 5.704×10⁻⁷m

 =570.4 ×10⁻⁹m

Thus, the wavelength of the photon is 570.4nm.

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Answer:

D

Explanation:

LA FUERZA NETA ES LA FUERZA TOTAL DE EMPUJE MENOS EL PESO DEL

COHETE.

\(F_{y}\) = 700000 N(sen 90° - 20°) - 560000 N = 97785 N

The approximate vertical component of the net force that is propelling the rocket away from Earth is 112,000 N. Option B is correct.

The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. The thrust force is pointing upwards at an angle of 20 degrees, and the weight of the rocket is pointing downwards. The thrust force is the force that is generated by the rocket engine. It is the force that propels the rocket upwards.

The weight of the rocket is the force of gravity acting on the rocket. It is the force that pulls the rocket downwards. The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. If the net force is positive, the rocket will accelerate upwards. If the net force is negative, the rocket will accelerate downwards. If the net force is zero, the rocket will remain at rest.

net force = thrust force + weight

vertical component of net force = thrust force * cos(angle)

vertical component of net force = 700,000 N * cos(20 degrees) = 112,000 N. Option B is correct.

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The bowling ball experiences the greater magnitude impulse during the collision since it is initially at rest and is given the momentum of the small ball which has a speed of 5m/s.

The impulse of the bowling ball can be calculated using the equation impulse = change in momentum = mvf - mvi, where m is the mass of the bowling ball, vf is its final velocity, and vi is its initial velocity.

Since the bowling ball is initially at rest (vi = 0), the impulse can be calculated as mvf = m(5m/s) = 5m^2/s. The impulse of the small ball can be calculated in the same way, giving an impulse of 5m^2/s. Therefore, the bowling ball experiences a greater magnitude impulse during the collision.

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The total mass of your catch is 13.1 kg

Since you have three fishes a bass, a rock cod, and a salmon with masses of 1.07 kg, 6.0 kg, and  6.05 kg, respectively,

The total mass of your catch = mass of bass + mass of rock cod + mass of salmon

= 1.07 kg + 6.0 kg + 6.05 kg

= 13.12 kg

Since the total mass of your catch is 13.12 kg and we have three catches with two catches to two decimal places and one catch to one decimal place.

We cannot have more decimal places in our answer than the number of decimal places in the number with the least number of decimal places.

Since the least number of decimal places is in the mass of the rock cod which is 6.0 kg, the total mass of our catch is thus 13.1 kg to one decimal place.

So, the total mass of your catch is 13.1 kg

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The fatty substance that helps insulate neurons and speeds the transmission of nerve impulses is called myelin.

Myelin is a fatty substance that forms a protective covering around nerve fibers, including neurons.

It is composed of lipids and proteins and acts as an insulating layer, similar to the way insulation around an electrical wire helps conduct electricity more efficiently.

Myelin sheaths are formed by specialized cells called oligodendrocytes in the central nervous system (CNS) and Schwann cells in the peripheral nervous system (PNS).

The presence of myelin allows for faster and more efficient transmission of nerve impulses along the axons of neurons. It acts as an electrical insulator, preventing the dissipation of the electrical signal and enhancing its conduction speed.

The myelin sheath is segmented with small gaps called nodes of Ranvier, which play a crucial role in the saltatory conduction of nerve impulses.

Disruptions or damage to the myelin sheath, such as in diseases like multiple sclerosis, can lead to a slowing or blocking of nerve impulses, resulting in various neurological symptoms. T

he importance of myelin in facilitating rapid and efficient nerve transmission underscores its critical role in the proper functioning of the nervous system.

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The kinetic energy of a satellite in a circular orbit is given by the formula K = (1/2)mv^2, where m is the mass of the satellite, v is the orbital velocity, and K is the kinetic energy. The orbital velocity of a satellite depends on its distance from the planet and can be calculated using the formula v = sqrt(GM/R), where G is the gravitational constant, M is the mass of the planet, and R is the distance from the center of the planet.

Using this information, we can calculate the orbital velocities and kinetic energies of satellites X and Y. Since the satellites have the same mass, their kinetic energies depend only on their velocities.
The kinetic energy of a satellite in orbit can be given by the formula: K = (1/2) * G * M * m / r, where G is the gravitational constant, M is the mass of the planet, m is the mass of the satellite, and r is the orbital radius.
For satellite X, Kx = (1/2) * G * M * m / (3R)
For satellite Y, Ky = (1/2) * G * M * m / (4R)
Now let's find the ratio Kx/Ky:
Kx/Ky = [(1/2) * G * M * m / (3R)] / [(1/2) * G * M * m / (4R)]
By simplifying the equation, we get:
Kx/Ky = (4R) / (3R)
This simplifies further to:
Kx/Ky = 4/3
So, the correct answer is (D) 4/3.

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Answer:

Q = 41800[J]

Explanation:

These types of problems can be solved using the following heat transfer equation for quarps that increase or decrease their temperature as a function of mass.

\(Q=m*C_{p}*DT\)

where:

Q = Heat absorbed [J]

m = mass = 2 [kg]

DT = temperature change = 5 [°C]

Cp = specific heat of the water = 4180 [J/kg*°C]

\(Q=2*4180*5\\Q=41800[J]\)

Units of energy (Joules) [J]

The maximum temperature is -320.44 and the minimum temperature is -333.22.

In this case, there was an increase of 50 °C in the temperature of this object. We say that the temperature variation suffered by the body was 50°C, and this can be determined mathematically through the difference between the final value and the initial temperature value (60 – 10 = 50).

In this case, we have:

\(x+ 333.22 = 12.78\\x=12.78-333.22\\x=-320.44\)

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-320.44 is the maximum temperature at which nitrogen is a liquid.

-346 is the minimum temperature at which nitrogen is a liquid

To solve this problem, we can analyze the forces acting on the ladder using the principle of torque equilibrium. The torque equilibrium condition states that the sum of the torques acting on an object must be zero for rotational equilibrium.

Let's assume the counterclockwise direction is positive for torques. Considering the forces acting on the ladder, we have:

Weight of the ladder: The weight acts downward at the center of gravity, which is at the center of the ladder. Since the weight is acting at the center of gravity, it does not create any torque.

The force exerted by the hydraulic piston (F⃗): The force is applied at point C and makes an angle of 40° with the ladder. We need to calculate the torque created by this force.

To calculate the torque, we use the equation:

Torque = Force * Perpendicular Distance

The perpendicular distance between the force and the pivot point A is 8.0 m, as given in the problem.

The torque exerted by the hydraulic piston = F * d * sinθ

where F is the magnitude of the force, d is the perpendicular distance, and θ is the angle between the force and the ladder.

Now, let's substitute the given values into the equation:

Torque exerted by the hydraulic piston = F * 8.0 m * sin(40°)

Since the ladder is in equilibrium, the sum of the torques must be zero. Therefore, the torque exerted by the hydraulic piston should be equal and opposite to the torque exerted by the ladder's weight.

The torque exerted by the ladder's weight = 0 (since it acts at the center of gravity)

Therefore, we can set up the equation:

The torque exerted by the hydraulic piston = Torque exerted by the ladder's weight

F * 8.0 m * sin(40°) = 0

Solving for F:

F = 0 / (8.0 m * sin(40°))

F = 0

This means that the force exerted by the hydraulic piston must be zero for the ladder to be in equilibrium. However, in practical situations, a force would be required to lift and hold the ladder in position. This calculation assumes idealized conditions without considering external factors such as friction, structural constraints, or additional forces.

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The Weight of an object is more at pole and less at equator of the earth because the distance of the pole is less than the distance of the equator from the centre of the earth.

Answer:

Distance = 0.0052 m

Explanation:

Work =1.56J

Force = 300N

Distance = ?

Work=Force*Distance

1.56 J = 300N * Distance

1.56/300 = Distance

0.0052 m = Distance

Answer:

Explanation:

For free body diagram see attached sheet .

W is weight of steel girder acting at the middle point of its length . T is tension in the cable .

OB = √ ( 12² - 2² )

= 11.83 m .

OC = 11.83 / 2 = 5.915 m

Taking moment of tension T and weight W about point O

W x OC = T x OB

22 x 5.915 = T x 11.83

T = 22 x 5.915 / 11.83

= 11 kN

Considering forces acting in vertical direction and equating forces in opposite direction

T + R = W

R = W - T

= 22 - 11 = 11 KN

So force of grinder on the ground = R

= 11 KN.

The complete factorization is 2 (2x-1)².

Factorization is a way of dividing mathematical algebraic statements into their components. The components will produce the original phrase if we multiply them once more.

Factorization is a way of dividing mathematical algebraic statements into their components. If we multiply the components again, we get the original equation.

Factorising is the opposite of extending brackets. Fully factorizing an expression implies putting it in brackets and removing the greatest common factors. Finding the largest common factor between each item in the phrase is the simplest method of factorization.

Given,

= 8x² - 8x +2

=  8x² - (4+4)x +2

= 8x² - 4x + 4x +2

= 4x (2x -1) -2 (2x-1)

= (4x-2) (2x-1)

= 2 (2x-1) (2x-1)

= 2 (2x-1)²

Thus, complete factorization is 2 (2x-1)².

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