When you play with your toy gun, the gun has a spring. When the spring is compressed by 0.12m, the toy gun shoots out a 0.010 kg pellet to a max height of 100m, a) What is the final gravitational potential energy of the pellet

When the first hockey puck comes to rest after the collision then the conservation of momentum holds and the total final momentum of the system is 23.18 m/s.

Applying the law of conservation of momentum,

we get,

m1v1i + m2v2i= m1v1f + m2v2f

0.17 (15) + 0.11 (0) = 0.17 (0) + (0-11) (V₂f)

0.17 x1500+ 0.11 V2f Vaf 0.17x15 0.11

V₁f =23.18 m/s

A collision between bodies in which the total kinetic energy of the bodies is conserved. Elastic collisions, such as the collision of a rubber ball on a hard surface, result in the reflection or "bouncing" of bodies away from each other.

In a perfectly elastic collision, no energy is turned into thermal energy internal to the bodies, and none is spent on permanently deforming the bodies or radiated away in some other fashion.

A collision between bodies in which the total kinetic energy of the bodies is not conserved. Inelastic collisions, such as the collision of two balls of clay, tend to result in the slowing and sometimes the sticking together of the colliding bodies.

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The system's total final momentum is 2.54 kg m/s m/s when the first hockey puck comes to rest following the collision, proving that momentum conservation persists.

Utilizing the principle of momentum conservation,

we get,

[tex]M_{1} V_{1}i +M_{2} V_{2}i =M_{_{1} } V_{1}f +M_{2} V_{2} f[/tex]

0.17 (15) + 0.11 (0) = 0.17 (0) + (0.11) (V₂f)

[tex]V_{2}[/tex]f =23.18 m/s

p = mv

p = 0.11*23.18 kg m/s

p = 2.54 kg m/s

a collision in which both bodies maintain their full internal kinetic energy. Elastic collisions cause bodies to reflect or "bounce" away from one another, like when a rubber ball strikes a hard surface.

When two perfectly elastic bodies collide, no energy is converted into internal heat energy and no energy is used to permanently distort the bodies.

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The force pushing the 5kg rifle back when a 5g bullet is fired from it is 25*10^5N.

The mass of the bullet m= 5g.The constant force acting on the bullet F=2500N.So the acceleration of the bullet a=F/m ,a=2500/0.005 =5*10^5m/s^2.

According to Newton's law of motion, each action force has an equal and opposite reaction force.

Now the force pushing the riffle in the backwards direction  F1=M*(F/m). Now the mass of the rifle M=5kg. So the force acting on the riffle , F1=5*(2500/0.005)=25*10^5 N.

His third law argues that there is an equal and opposite response to every action (force) in nature. When object A pulls on item B, object B pulls back on object A with an equal and opposing force. In other words, interactions lead to forces.

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When the initial velocity were quadrupled, the block would slide and stops at a distance of 30.4 m

Using equation of motion

v² = u² + 2as

Where:

v = final velocity

u = initial velocity

a = acceleration / deceleration

s = distance

In the given problem:

v = 0 (since the block finally stopped)

u = 2.5 m/s

s = 1.9 m

Plug these parameters into the equations:

0 = 2.5² + 2a x 1.9

a = - 1.64 m/s²  (minus sign means deceleration)

Assuming the same force applied, but now the initial velocity were quadrupled. Hence,

u = 4 x 2.5 = 10 m/s

v² = u² + 2as

0 = 10² + 2 x (- 1.64 ) x s

s = 30.4 m

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When you keep an object in front of a concave mirror, an enlarged image of the object is formed when it is kept close to the mirror and an inverted image of the object is formed when it is kept at a distance. A convex mirror always forms a small and an erected image of the object.

Concave mirrors are spherical mirrors with a reflecting inner surface. Convex mirrors are spherical mirrors with a reflecting surface on the outside.

A concave mirror, also known as a converging mirror, has an inwardly depressed reflecting surface (away from the incident light). Light is reflected inward to a single focal point via concave mirrors.

Convex mirrors are curved mirrors with a reflecting surface on the outside. (Vex is an acronym meaning protruding).

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Answer:

1800W

Explanation:

A TV requires a potential difference of 11.5V and a current of 10A. It uses a transformer to produce the correct potential difference from the mains supply. If the mains supply is 230V, what current does it provide to the transformer? The required electrical power output of a step-up transformer is 1800W.

Answer:

Work done= 85000 J

Explanation:

Work done = mass x acceleration due to gravity (constant at 10) x height

W= 500 x 10 x 12+5.0

W= 500 x 10 x17

W= 85000 J

500 kg of water are raised by the water pump from a 12 m deep well onto a reservoir that is 5.0 m above the earth, and this process requires -34,335 J of work.

In physics, work is defined as the energy transferred to or from an object by means of a force acting on the object, causing it to move in a certain direction. Work is a scalar quantity and is represented by the symbol "W". The magnitude of work is given by the product of the force acting on an object and the displacement of the object in the direction of the force.

In other words, work is done when a force acts on an object and causes it to move a certain distance in the direction of the force. The amount of work done is determined by the magnitude of the force, the displacement of the object, and the angle between the force and the displacement.

The SI unit of work is the joule (J), which is defined as the work done when a force of one newton (N) is applied over a distance of one meter (m) in the direction of the force.

Here in the Question,

The work done by the water pump is equal to the product of the force applied by the pump and the distance over which the force is applied. In this case, the force applied by the pump is the weight of the water being lifted, and the distance over which the force is applied is the vertical distance from the bottom of the well to the top of the reservoir.

First, we need to calculate the weight of the water being lifted:

mass of water = 500 kg

acceleration due to gravity = 9.81 m/s^2

weight of water = mass of water x acceleration due to gravity

= 500 kg x 9.81 m/s^2

= 4,905 N

Next, we need to calculate the vertical distance over which the force is applied:

vertical distance = height of reservoir - depth of well

= 5.0 m - 12 m

= -7.0 m (negative sign indicates that the direction of the force is opposite to the direction of the displacement)

The work done by the pump is given by:

work = force x distance x cos(theta)

where theta is the angle between the force and the displacement. In this case, theta is 180 degrees, since the force is acting in the opposite direction to the displacement.

So, the work done by the pump is:

work = force x distance x cos(theta)

= 4,905 N x (-7.0 m) x cos(180 degrees)

= -34,335 J

The negative sign indicates that the work done by the pump is negative, which means that the pump is actually doing work against the gravitational force. This is because the water is being lifted from a lower level to a higher level, and the pump has to overcome the gravitational force acting on the water in order to do so.

Therefore, the work done by the water pump in raising 500 kg of water from a 12 m deep well onto a reservoir 5.0 m above the ground is -34,335 J.

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A compound decomposes by first-order process. If 26 % of the compound decomposes in 60 minutes, then the half-life of the compound is 138 minutes.

The time required for a quantity (of substance) to reduce to half of its initial value is called half life.

Integrated rate law for first order kinetics:

At = [Ao] e^-kt

[At] is concentration at time t

[Ao] is initial concentration

Given, 26 % is decomposed which means that 0.26 of  is decomposed. So, now;  1 - 0.26 = 0.74

Given, t = 60 min

[At/Ao] = e^-kt

0.74 = e^-k * 60

ln 0.74 = - k * 60

k = 0.005018 min⁻¹

Half life, t1/2 = ln2/k

= ln 2/ 0.005018

t 1/2 = 138 min

The half-life of the compound is calculated as 138 minutes.

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The explanation for the extra empty white square in the bottom figure is that one of the shapes in the top figure is larger by one square than the corresponding shape of the same colour in the bottom figure.

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Answer:

The period will decrease.

T (period) = 2 π (L / g)^1/2      period of simple pendulum

As the length of a simple pendulum decreases its period of motion will also decrease (it will swing faster)

The work done when 1 mole of a gas is allowed to expand freely in vacuum is 0 J.

Given that,

Number of moles n = 1.

Gas expands in vacuum and so it is a case of free expansion. It means that,

P ext = 0 and it is an irreversible process.

Mathematically, W = - P ext ( v₂ - v₁)

And its value is zero, W = 0.

In a free expansion, gas expands in vacuum and the molecules move freely and gas expands against no force.

Thus, the required work done when 1 mole of gas is allowed to expand freely is 0 J.

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The correct statement is D. The magnitude of the electric force exerted on B is doubled because the electric field at the position of A is doubled.

When two charged particles, such as A and B, are held some distance apart, they exert an electric force on each other due to their charges. The strength of this force is determined by the amount of charge on each particle and the distance between them. This force is called Coulomb force and it follows the Coulomb's law. The Coulomb's law states that the force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

When the charge on A is doubled, the electric field at the position of A increases, and as a result, the force exerted on B also increases. This is because the electric field at the position of A is what causes the force on B. The magnitude of the electric force on B is proportional to the product of the charges of A and B, and inversely proportional to the square of the distance between them. So as the charge on A doubles, the force on B also doubles.

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The elongation of the spring is 0.18 m.

Let us recall that by the use of the Hooke's law, we know that teh force that has been exerted on the spring by the object would be directly proportional to the extension of the spring if the elastic limit has not been exceeded.

We have that;

W = 1/2kx^2

W = work done

k = spring constant

x = extension

We then have;

1.6 = 1/2 * 96 * x^2

x = √2 * 1.6/96

x = 0.18 m

It would be increased by a length of about 0.18 m.

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With the use of formula the extension in the spring is 0.183 m approximately

Elastic Potential Energy of the spring is due to the work done on it by the person winding the clock.

Giving that a heavy block is suspended from a vertical spring. The elastic potential energy is stored in the spring is 1.6 J. The elongation of the spring if the spring constant is 96 N/m can be calculated by using the formula below

E = 1/2Ke²

Where

Substitute all the parameters

1.6 = 1/2 × 96 × e²

1.6 = 48e²

e² = 1.6/48

e² = 0.03333

e = √0.03333

e = 0.183 m

Therefore, the elongation of the spring is 0.183 m

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In this situation, the normal force on the box of cereal would be equal to its weight, or 3.8 N. Correct answer: letter A.

This is because the box of cereal is at rest on the kitchen counter, meaning that the normal force exerted by the counter on the box is equal and opposite to the gravitational force exerted on the box by the Earth.

This means that the net force on the box is 0 N, and so the normal force must be equal to the box's weight in order to balance out the gravitational force and keep the box at rest.

The calculation to determine the normal force on the box of cereal is relatively straightforward. First, we need to calculate the weight of the box of cereal, which is equal to its mass multiplied by the acceleration due to gravity (9.8 m/s2). In this case, the weight of the box of cereal is 3.8 N.

As the box is at rest on the kitchen counter, the normal force exerted by the counter on the box must be equal and opposite to the gravitational force. This means that the normal force on the box of cereal is also 3.8 N, which is equal to its weight.

A box of cereal with a weight of is at rest on the kitchen counter. What is the normal force that the counter exerts on the box of cereal?

A) 3.8 N

B) 0.39 N

C) 6.0 N

D) 37 N

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Answer:

2264 N

Explanation:

Because the apparent weight of an object when it is submerged in water is equal to its actual weight minus the weight of the volume of water that it displaces.

The weight of the object is 1400 kg x 9.81 m/s² = 13 774 N.

The volume of the box is 2.00 m x 3.00 m x 0.200 m = 1.20 m³

The weight of the water displaced is 1.20 m³ x 1000 kg/m³ x 9.81 m/s² = 11 510 N

Therefore, the apparent weight of the box when submerged in water is 13 774 N - 11 510 N = 2264 N.

the answer is 8.85 m/s.

step by step explanation:

m = 85 kg

h = 4 m

Ep=m*g*h

Ep=85kg*9.8m/s²*4m = 3332 J (joules)

Ep=1/2*m*v²

3332=1/2*85kg*v²

3332= 42.5*v²

v² = 78.4

v = 8.85m/s

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the correct question is -

Tarzan's mass of 85 kg swings down from a tree limb on the end of the 20 m vine. His feet touch the ground 4.0m below the limb how fast is Tarzan moving when he reaches the ground?

​

A chain reaction can be set up if the neutrons produced by one fission strike other U-235 nuclei if the three neutrons produced by the fission may hit other nuclei of uranium 235, causing the process to repeat.

This is referred to as a chemical reaction or other process in which the products themselves promote or spread the reaction.

The products which are yielded initiate further processes of the same kind and in this scenario a chain reaction can be achieved if three neutrons produced by the fission may hit other nuclei of uranium 235 which will lead to a repetition of the process.

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Lock any windows and doors that are open. Head to the centre or basement of the structure. The recommended course of action is to stay as far away from the building's walls and top as you can since radioactive.

If radon gas is allowed to build up in a residence, it not only poses a health concern to uranium miner but also to homeowners. It is typically the biggest source of exposure to natural radiation.

We have been surrounded by radiation throughout our development. Therefore, the low amounts we are exposed each day are something our bodies are built to handle. However, excessive radiation can harm tissues by altering cell structure and DNA. Cancer is only one of the significant health issues this can lead to.

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According to Markovnikov's rule, the hydrogen in hot (water) adds to the carbon in the double bond that has more carbon–hydrogen bonds.

The hydroxyl group (OH) bonds to the carbon that has the greater number of carbon–carbon bonds, while the hydrogen bonds to the carbon on the other end of the double bond, that has more carbon–hydrogen bonds. The chemical basis for Markovnikov's Rule is the formation of the most stable carbocation during the addition process. Markovnikov rule is the rule in the chemistry that we use in the solvation and addition of the hydrogen and carbon and vice versa to each other. this is the rule in the hydrocarbon thing and we can use it in the carbon and hydrogen bonding. by this primary information we can firmly consider that according to Markovnikov's rule, the hydrogen in hot (water) adds to the carbon in the double bond that has more carbon–hydrogen bonds.

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The direction of a nail does not have any relation to a compass.

A compass is a device that is used to determine direction, typically with respect to the Earth's magnetic field. It is commonly used for navigation, as it can help a person determine which way is north, south, east, or west.

The direction of a nail, on the other hand, refers to the orientation of the nail in relation to the surface it is being driven into. For example, a nail might be driven in a straight, vertical direction, or it might be driven at an angle.

Hence, The direction of a nail is determined by the person driving the nail, and it does not have any relation to a compass.

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When observed after 3 minutes, both pieces of ice are melting at a nearly same rate; however, after extended observation, it can be seen that the piece of ice from the plastic bag melted about faster than the piece of ice from the ice cube tray. This is likely due to the fact that plastic is a better insulator and was able to retain more of the cold temperature from the freezer.

The solution of Al(ClO4)3 will have the lowest vapor pressure as it contains the greatest number of particles. Solution of sucrose will have highest vapor pressure because it contains only one particle in solution.

Vapor pressure is the ease with which a substance is converted from liquid to gas. Higher is the vapor pressure, more easily the solution is converted from liquid to gas and vice versa.

The magnitude of intermolecular forces and number of particles in a solution plays an important role in determining vapor pressure. The solution of Al(ClO4)3 has the lowest vapor pressure as it has greatest number of particles and solution of sucrose will have highest vapor pressure because it contains only one particle in solution.

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Note: The question given on the portal is incomplete. Here is the complete question.

Question: A 0.100 m solution of which one of the following solutes will have the lowest vapor pressure? Which will have have the highest vapor pressure?

A) KClO4 B) Ca(ClO4)2 C) Al(ClO4)3 D) Sucrose E) NaCl

Answer:
Distance traveled by the car during the 4th second is 120 meters.

If this help please set brainliest.

Explanation:

To find the distance traveled by the car during the 4th second, you need to know the acceleration of the car. The acceleration is the change in velocity (in this case, the change in speed) over time. Since the car's speed increased from 20 m/s to 40 m/s in 10 seconds, the acceleration is (40-20)/10 = 2 m/s^2.

To find the distance traveled during the 4th second, you can use the formula d = vt, where d is the distance traveled, v is the velocity (in this case, the average velocity during the 4th second), and t is the time traveled (in this case, 4 seconds).

The average velocity during the 4th second is simply the average of the initial and final velocities, which is (20+40)/2 = 30 m/s. Plugging this value into the formula, we get d = 30 m/s * 4 s = 120 meters. Therefore, the distance traveled by the car during the 4th second is 120 meters.

Given,

u=8 m/s

v=16 m/s

t=10 sec

(i) using equation

a= v-u/t

= (16-8)

= 8/10

= 0.8 / ms^2

= acceleration

(ii) Displacement

S = ut + 1/2 at^2

= 8×10+1/2×0.8× (10)^2

= 80 + 0.4 × 100

= ( 80 + 40) m

S = 120 m

Answer: okay thx

Explanation:

It's all about Inertia! Inertia says an object, the egg in this case, will stay at rest, unless an outside force acts upon it, your hand in this case. When you move the pie pan with your hand, gravity pulls the egg straight into the glass of water.

Check Writing QualityThe Egg-Drop Device Process The process of dropping an egg is more complex than an average person would believe. The egg-dropping process requires knowledge of history, engineering, mathematics, and physics. To fully understand how an egg drops, the ability of the history of physics, the engineering behind a device, and the mathematics and physics of free-fall are needed.

Physics originates in its classical form in Ancient Greece. Thales was the first physicist. The theories Thales made gave the discipline of physics its name. Thales believes that the world, although made of many materials, was made of only one element: water. The interaction of water between the phases of solid, liquid, and gas gives materials different properties.

Copernicus discovers that the Sun was the center of the solar system, not the Earth. Kepler develops the three laws of planetary motion. Galileo discovers that the natural state of an object is either at rest or moving with a constant speed, for as long as no unbalanced forces are acting on the object. Galileo reasons that if friction and other forces were balanced, an object would continue along at constant speed.

The conceptual side of egg-dropping requires knowledge of free-fall physics. The most basic formula to know is v = d/t, or velocity is equal to the distance divided by the elapsed time. In the test simulation, the device is dropped at a distance of 75 feet or 22.86 meters, and the average elapsed time is 2.223 seconds. Using these two values, substituted into the formula, the velocity is determined to be 10.2834 meters per second. Velocity is a vector quantity with direction and magnitude. In the case of the device, the direction is directly down or 90 degrees below the horizontal and the magnitude is 10.2834. After solving for velocity, one can get the acceleration of the device as it drops from 75 feet. To calculate acceleration, the formula a = v / t, or in other words, acceleration is equal to velocity divided by the elapsed time.

The Egg Drop project is a highly-versatile activity that can be used to introduce students to physics, materials science, and fluid dynamics. For elementary and middle school classes, the students have a wide range of materials to 'buy' with their allotted budgets.

Answer: 1. Make a triangle out of a straw and tape it together.

2. Repeat this two more times.

3. Tape all 3 triangles together around the egg to make a pyramid shape.

4. Decide how else to cushion the egg - for example: using more straws.

5. Spread the painter's tarp on the floor.

Converging of rays by concave mirror is the property used in telescope and it converges the rays coming from infinity.

A spherical mirror has the shape of a segment of a sphere. A concave spherical mirror has the silvered surface of the mirror on the inner, or concave, side of the curve. A convex spherical mirror has the silvered surface of the mirror on the outer, or convex, side of the curve.

The mirror has a radius of curvature of R, Its center of curvature is the point C, Point V is the center of the spherical segment. A line drawn from C to V is called the principle axis of the mirror.

A point source of light is placed at O, Rays are drawn from O, After reflecting from the mirror, the rays converge at point I, Point I is called the Image point, Light actually passes through the point so the image is real.

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Converging property of concave mirror is used in telescope.

Concave mirror is used in telescope because it converses the incident rays parallel to principal axis and focused on focal point. The intensity of light increases because of the convergence of the light beam. Concave mirror form both real and virtual images. If the objects are closer to the mirror, then a virtual and magnified image is formed. If the object is further away from the mirror, a real and diminished image formed.

Concave mirror is a spherical mirror, whose reflecting surface is curved inward, that is, it faces toward the Centre of the sphere.

Concave mirror equation:

[tex]\frac{1}{v} +\frac{1}{u} =\frac{1}{f}[/tex]

The distance between object and pole of mirror = u

The distance between image and pole of mirror = v

The distance between the principle of focus and pole of mirror is = f

Focal length: f = [tex]\frac{R}{2}[/tex]                    (R = radius of curvature of spherical mirror)

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Preston take 6.5 hours to paint 812.5 square feet.

To calculate the time it takes Preston to paint 812.5 square feet, we can use the equation t = (d/r) where t is the time it takes, d is the distance or in this case the area of the wall, and r is the rate or in this case the area painted in an hour.

Step 1: Calculate the rate of painting per hour

375 square feet ÷ 3 hours = 125 square feet per hour

Step 2: Calculate the time needed to paint 812.5 square feet.

Preston can paint in an hour. So, in this case,

                        t = (812.5 / 125) = 6.5 hours.

i.e. 812.5 square feet ÷ 125 square feet per hour = 6.5 hours

Therefore, it would take Preston 6.5 hours to paint 812.5 square feet.

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Yes, there will be more potential energy that can be stored by moving against the magnetic force near the magnet.

If you move the magnetic field against the magnetic force of the magnet, the movement compresses the magnetic field lines and increases the potential energy. Potential energy increases when the charge moves in the opposite direction to the electric force. For example, when two negative charges approach each other. Similarly, magnetic potential energy is the potential energy that a magnetic body has due to the magnetic force of another magnet. The stored energy is broken down and replaced with kinetic energy. So if two magnets with opposite poles are oriented toward each other (from North Pole to South Pole), the energy stored in the magnetic field will decrease as they move closer together.

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The mass of the bus that accelerates from 10m/s to 15 m/s is 600 kg.

Mass is the quantity of matter a body contains.

To calculate the mass of the bus, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the mass of the bus is 600 kg.

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About 4.5 billion years ago, a dense cloud of interstellar gas and dust gave rise to our solar system. The supernova shockwave from a nearby exploding star, or supernova, may have caused the cloud to collapse.

Within the initial 10 million years of the solar system's formation, Jupiter and Saturn are assumed to have formed first and fast. Rocky planets start to develop in the warmer, star-closer regions of the disk. There isn't much gas left for the terrestrial planets to accrete after the formation of the icy giants.

Let's, therefore, travel back in time more than 4.6 billion years to the time before Earth, Sun, and even Solar System existed. We were surrounded by gas and dust, most likely in one of the spiral arms. Do you want to know how it appeared? Your favorite Hubble Space Telescope images should be helpful.

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Our solar system was created from a massive cloud of interstellar gas and dust some 4.5 billion years ago. The collapse of the cloud may have been triggered by the supernova boom from a nearby exploding star.

Jupiter and Saturn are believed to have formed initially and quickly during the first 10 million years of the solar system's creation. In the warmer, star-closer parts of the disc, rocky planets begin to form. After the development of the icy giants, there is not much gas left for the terrestrial planets to accrete. Therefore, let's go back in time more than 4.6 billion years to the period before the Earth, Sun, and even the Solar System were created. Dust and gas were all around us called supernova.

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Frequency is the aspect of sound that has to do with clarity, nasality, or reediness.

Frequency is defined as the rate of changes in current trajectory per second. It is given in hertz (Hz), an internationally recognized measurement unit. Every cycle per second is equal to one hertz. One pulse every second is equal to one hertz (Hz). A cycle is a complete alternate or voltage wave.

Since audio is a waveform, it possesses all the characteristics ascribed to waves, and these characteristics are the four factors that describe all sounds. In terms of music, they are pitch, dynamism, tone (tone color), and endurance. They are the frequency, intensity, wave shape, and duration.

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