What are the 4 system of equations?.

Through photosynthesis process introduced oxygen into the atmosphere.

Jan Ingenhousz was a Dutch-born British physician and scientist who was most famous for discovering photosynthesis, the process by which green plants in sunlight absorb carbon dioxide and release oxygen. He was born on December 8, 1730, in Breda, the Netherlands, and died on September 7, 1799, in Bowood, Wiltshire, England. The process through which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis. The vast majority of life on Earth depends on photosynthesis to survive. It is how almost all of the biosphere's energy is made accessible to living beings.

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The water bath has a starting temperature of (18 0.5) °C and a finishing temperature of (40 0.3) °C, respectively.

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The effective weight of the  ice skater is 497.75 N.

Acceleration is the rate at which speed and direction of velocity vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.

Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.

The effective weight of the  ice skater = mass × net acceleration

= 55 kg × (9.8 m/s² - 0.75 m/s²)

= 497.75 N.

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Kalanchoe plants produce plantlets on their leaves is an example of vegetative reproduction in plant.

Vegetative reproduction is a way of asexual reproduction of living things  (without the fusion of male and female sex cells). Vegetative reproduction can occur naturally or artificially. In natural animals:

Your question is incomplete but most probably your full question was:

Vegetative reproduction is a type of asexual reproduction in which nonreproductive parts of an organism can break off and develop into new individuals. Which event is an example of vegetative reproduction in plants? A. Pine trees produce seeds in cones. B. Mosses form spores in capsules. C. Sunflower plants produce seeds in their flowers. D. Kalanchoe plants produce plantlets on their leaves.

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The magnitude of the Electrostatic force is proportional to the square of the distance between the two charges. As a result, doubling the distance between the two charges reduces the attraction or repulsion to one-fourth of its original magnitude.

If the distance between objects is doubled, the force of attraction is 1/4.

If the distance between objects is doubled, the force between objects is quartered. If the distance between objects is tripled, the force between them is 9 times smaller. If the masses of both bodies double, the force between them quadruples.

Electrostatic force is a non-contact force. They pull and push things without touching them. When some materials rub against each other, something called a "charge" can move from one surface to another. Charged objects attract other uncharged objects and can push or pull other charged objects.

As the distance between two charges increases, the repulsive force between them decreases. For equal charges, the electrostatic force decreases as the distance between the two charges decreases.

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Gravity operates as the action force, pulling the book toward the table, and the normal force of the table, acting as the reaction force, pushing the book higher.

A massive object's potential energy in relation to another massive object because of gravity is known as gravitational energy or gravitational potential energy. The energy that is released when the items fall toward one another is the potential energy associated with the gravitational field.

The potential energy associated with gravitational force is known as gravitational energy because it takes effort to lift items out of the gravitational pull of the Earth. Water in an elevated reservoir or kept behind a dam is evidence of gravitational potential energy, which is the potential energy resulting from elevated locations.

The book is being pulled toward the table by gravity, which acts as the action force, and is being pushed upward by the table's normal force, which acts as the reaction force.

When an object is present in a gravitational field, it has or can acquire gravitational potential energy, which is the energy that results from a change in position. Gravitational potential energy is an energy that is connected to gravitational force or gravity, to put it simply.

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An item can move, or can accelerate, slow down (decelerate), stop, or change direction as a result of the action of a force. It is possible to say that a force acting on an item causes that object to accelerate because any change in velocity is regarded as acceleration.

What knowledge is required for a pupil to distinguish between a moving object's speed and velocity?

Speed is the rate at which motion changes, or the distance that an item moves in a given amount of time, regardless of direction. Speed with regard to direction is defined as velocity. Velocity is a vector, whereas speed is a scalar.

In contrast to speed, which of the following best represents a velocity?

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path.

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The force acted on the golf ball is 2,700N.

Momentum in physics is the tendency of a body to maintain its inertial motion i.e. the product of its mass and velocity, or the vector sum of the products of its masses and velocities.

According to this question, a golf ball increases its momentum by 6.75 kgm/s. The impact between the ball and club lasted for 0.0025s.

Force is the rate at which momentum changes with respect to time i.e. (F = dp/dt).

Force = 6.75kgm/s ÷ 0.0025s

Force = 2,700N

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The rate of change (ROC) describes how rapidly something changes over time. It is hence the pace of change (rather than the amount of individual changes) that is important.

Continuous data is data that can have any value. Continuous data include height, weight, temperature, and length. Some continuous data will fluctuate over time, such as a baby's weight in its first year or the temperature in a room during the day.

A continuous variable is one that may take an uncountable or endless set of values.

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The image shows that the voltage affects the current and so does the resistance.

We know that the relationship between the voltage and the current can be obtained by the use of the Ohm's law. From the Ohm's law, we can see that;

V = IR

V = voltage

I = current

R = Resistance.

In this case, the resistance can be looked upon as the constnat of the proportionality. Based on the image, we can see that the current is related to the voltage and that the resistance also affects the current.

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The statement is untrue since a vector is not a unit vector if all of its components are equal to 1.

Do all the elements of a unit vector have the value 1?

A unit vector is one with a magnitude of 1. It also goes by the name Direction Vector. Learn more about vectors here. Vector v = (1,3), for instance, is not a unit vector.

What is the unit vector's truth?

Since the denominator and numerator both have the same value, the unit vector has a magnitude of 1. Only direction exists in the unit vector. We are aware that a vector must have both magnitude and direction.

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The service disconnecting switch for an installation consisting of a limited load on a single branch circuit should have a rating of not less than 15 ampere.

A service disconnecting switch is a device which disconnects all the conductors of the system from the main source of supply. The limitation of current is due to the high heat produce. As heat in a conductor is a function of current. Like: H = i²Rt

Where I is the current, R is the resistance of the device, and t is the time of current flow. We can see by the formula that heat is directly proportional to the square of the current. More is the current more will be the heat produced.

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1 kilogram is equal to 9.806 newton. A newton is equal to 1 kg/m2/s2 (it is a derived unit which is defined in terms of the SI base units).

The force required to accelerate one kilogrammes of mass at a rate of one meter per second squared in the direction of the applied force is consequently one newton. The term "meter per second squared" refers to the rate of change in velocity per unit of time, or the acceleration of velocity by one meter per second.

Isaac Newton inspired the naming of the newton. Like every SI unit named after a person, Newton's sign begins with an upper case letter (N), but when written in full, it adheres to the common noun capitalization rules, which means that "newton" is capitalized at the start of sentences and in titles but otherwise is written in lower case.

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One mole is made up of 6.022*10^23(standard mole value) atoms or other fundamental building blocks, such as molecules.

The mole, also referred to as mol, is a SI unit used to determine the quantity of particles in a specific substance. The molecular weight of a particular compound is 6.022 x 10^23. (such as atoms, molecules, or ions). Mass and particle quantity can be converted using the mole concept.

Avogadro's number, or the number in a mole, is influenced by the ratio of atomic mass units to grams. In relation to the mass of one hydrogen atom, which is approximately one unit, a mole of hydrogen atoms weighs around one gram. Avogadro's constant or "Avogadro's number" is referred to as 6.022 10^23.

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The potential energy of the object is 980 Joule. The result is obtained by using the formula for potential energy.

Potential energy is the energy of an object due to its position.

The energy of an object in a gravitational field is called gravitational potential energy. It can be expressed as

U = mgh

Where

An object has

Find the potential energy!

The Earth's gravitational field is g = 9.8 m/s².

Using the formula above, we get

U = mgh

U = 10 × 9.8 × 10

U = 980 Joule

Hence, the object has the potential energy of 980 Joule.

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The magnitude for A =- 2i +2j+2k is 2[tex]\sqrt{3}[/tex].

The definition of magnitude in physics is "distance or quantity," which is all there is to it. It displays the motion of an object in motion, including any absolute, relative, or specific sized movements. It can be used to define the size or scope of anything. In physics, the general term "magnitude" is used to describe size or distance.

A number called the magnitude of a force serves as a measure of its strength. Let's say there is a 10 N force coming from the east. "towards east" designates a direction, while "10" denotes the strength of the force. The "value" or "amount" of any physical quantity can be thought of as the magnitude, in other words.

= [tex]\sqrt{a^{2}+b^{2}+c^{2} }[/tex]

[tex]= \sqrt{2^{2}+2^{2} +2^{2} } \\= \sqrt{12} \\= 2\sqrt{3}[/tex]

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Correct Question:

What is the magnitude of A =- 2i +2j+2k?.

Answer:

Ultrasound monitoring of fetuses and mapping the seabed are similar in that they both use sonar technology to create images.

Explanation:

Ultrasound monitoring uses high-frequency sound waves to create images of the developing fetus inside the womb. The sound waves are sent out by a transducer and are reflected back to create an image of the fetus, similar to how sonar sends out sound waves and receives the echoes to create an image of the seabed.

Mapping the seabed uses sonar technology to create images of the seafloor. Sound waves are sent out by a transducer and are reflected back by the seafloor, creating an image of the seabed. The time it takes for the sound waves to return is used to determine the depth of the seafloor.

Both ultrasound monitoring and mapping the seabed use the principle of echolocation, which is the ability to locate objects by reflecting sound waves off them and measuring the time it takes for the echoes to return.

In summary, both ultrasound monitoring and mapping the seabed use sonar technology to create images by sending out sound waves and receiving echoes, which is the principle of echolocation.

Explanation:

both are actually using the principle of sonar basically involves sound waves ,bouncing doing waves and measuring effectively the echoes mm hmm for ultrasound well.

The speed of the ball thrown that traveled 60 feet in 0.4 seconds is 150ft/s.

Speed is the rate of motion or action, specifically the magnitude of the velocity i.e. the rate distance is traversed in a given time.

Speed = distance moved (m) ÷ time taken (s)

According to this question, the fastest baseball pitch ever recorded was by Aroldis Chapman who threw a ball that traveled 60 feet in 0.4 seconds. The speed of the ball can be calculated thus;

Speed = 60feet ÷ 0.4s

Speed = 150ft/s

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Examples of substances that can move into or out of the cell by diffusion are water, carbon dioxide, oxygen etc.

A substance tends to move from a high concentration area to a low concentration area during the diffusion process until its concentration is equal throughout a space.

Passive transport involves a substance diffusing down a concentration gradient across a membrane without the cell expending any energy. A concentration gradient is simply a region of space where the concentration of a substance changes, and substances will naturally move down gradients, from higher concentration to lower concentration.

Some molecules in cells can move down concentration gradients by directly crossing the lipid portion of the membrane, while others must pass through membrane proteins in a process known as facilitated diffusion.

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The magnitude of the new gravitational force is F' = 32 F when the masses are changed to 2m and 2m, and the distance is changed to 4r.

The universal Gravitational Force can be formulated by, F = G M₁ M₂ / d²

As per the data we know that,

M₁ = m

M₂ = m

d₁ = r

F₁ = F

M₂ = 2m

d = (r/4)

F₂ = ?

i) Original force

F₁ = G (m)(m) / r² = G m² / r² = F

ii) Modified force

F₂ = G (m)(2m) / (r/4)² = G 2m² / (r² / 16) = 32 [Gm² / r²] = 32 F

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Yes, mass does change with gravity. The mass of an object is affected by the gravitational pull of the environment around it. The greater the gravitational pull, the higher the mass of the object.

This is because the object is being pulled closer to the source of gravity and thus its inertia increases, resulting in an increased mass. For example, if we were to compare two objects, one on the Earth’s surface and one on the Moon, the object on the Earth’s surface would be heavier due to the greater gravitational pull of the Earth. This is because the gravitational pull is stronger on the Earth than on the Moon, and thus the object on the Earth is being pulled closer to the source of gravity.

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Answer:

The correct answer is C. Low melting point, tendency to share electrons, nonelectrolyte. Covalent compounds are formed by the sharing of electrons between two atoms and they have a low melting point and are non-electrolytes.

Three formulas of newton's law of motion are:- a) v = u + at, b) S = ut +0.5at² c) v² = u² + 2as

Newton's first law of motion defines the relation between final velocity(v) of an object after some time(t), if the initial velocity of the object is u and acceleration is a.

v = u + at

Newton's second law of motion is used to determine the distance(S) travelled by an object in accelerated motion for time(t), having an initial velocity u.

S = ut +0.5at²

Newton's third law gives the relationship between, final, initial velocities, acceleration(a), and the distance(s) travelled by the object.

v² = u² + 2as

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The mass of the boat is 124.2 kg.

The mass of the boat is calculated by applying the principle of conservation of linear momentum as follows;

momentum of the man = momentum of the boat

m₁v₁ = m₂v₂

where;

Since speed is directly proportional to distance, our new equation becomes;

m₁d₁ = m₂d₂

m₂ = ( m₁d₁ ) / ( d₂ )

m₂ = ( 89.3 x 5.8 ) / ( 4.17 )

m₂ = 124.2 kg

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The frequency of this wave is 15Hz. so, option (c) is correct. This indicates the size of the frequency is the turning fork vibrates 320 times every second.so, option (d) is correct.

What is frequency?

The number of waves that pass through a fixed location in a specific amount of time is known as frequency. As a result, if a wave travels for 1/2 second, the frequency is 2 per second.

What is wave?

A disturbance or variation that causes energy to gradually move from one point in a medium to another. It can be in the form of an elastic deformation or a change in pressure, electric or magnetic intensity, electric potential, or temperature.

Therefore, frequency of this wave is 15Hz. so, option (c) is correct. This indicates the size of the frequency is the turning fork vibrates 320 times every second.so, option (d) is correct.

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Because the light beam chooses the shortest path to its destination, the angle of incidence equals the angle of reflection. Fermat's principle refers to this behaviour of light. When a light beam is reflected off a planar surface, it exhibits the same behaviour.

According to Fermat's theory of light behaviour, a light beam always chooses the shortest path to its target. At the point of reflection, the same behaviour is observed. The angle of incidence equals the angle of reflection when a ray is reflected from a plane.

Angle of incidence equals angle of reflection at a small surface area.

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Answer:

the correct answer is b 8/3