the human body is made primarily of water, which has a density of 1000 kg/m3. a certain woman weighs 119 pounds. one kilogram of mass weighs about 2.2 pounds.

Body waves & surface waves are the two primary forms of waves. Surface waves only can move over the Earth's surface like water ripples, while body waves can pass through the planet's core layers.

Wave The waves' motion is motion. A wave is described as a disruption brought on by energy travelling across space or even a medium. Wave motion can be seen in the motion of light rays, sound waves, and water ripples.

In a medium, a wave motion moves with the same speed throughout all directions. The characteristics of the medium a wave travels through affect its speed. 

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The line tangent to the curve has an estimated slope of - 33.2 the line tangent to the curve has an estimated slope of - 33.2 gallons per minute. per minute.

How to calculate a tangent line's slope by averaging two nearby secant lines

Using the table's data and the secant line formula, we must infer the slope of a number of lines in this problem:

m = [f(q)-f(p)] / (q-p) (1)

The slope of the secant lines is given by: Use the slope formula for the two points on each secant line. (15, 250) and (5, 694): m = (694 – 250) / (5 – 15) = −44.4

(15, 250) and (10, 444): m = (444 – 250) / (10 – 15) = −38.8

(15, 250) and (20, 111): m = (111 – 250)/ (20 – 15) = −27.8

(15, 250) and (25, 28): m = (28 – 250)/ (25 – 15) = −22.2

(15, 250) and (30, 0): m = (0 – 250) / (30 − 15) ≈ −16.7

The equations for the secant lines are obtained by using the point-slope formula.

V − 250 = −44.4(t − 15)

V − 250 = −38.8(t − 15)

V − 250 = −27.8(t − 15)

V − 250 = −22.2(t − 15)

V − 250 ≈ −16.7(t − 15)

Part (b) Use the slopes of the secant lines going through the points closest to (15, 250), (10, 444) and (20, 111), to get the most accurate slope of the tangent line.

M tangent = −38.8 + (−27.8) 2 = −33.3

The slope of the tangent line at t = 15 is about −33.2825, which is consistent with the result in part (b). dV dt ≈ −66.7897 + 2(1.12190) t − 3(0.000222222) t 2 dV dt    

t=15 ≈ −66.7897 + 2(1.12190) (15) − 3(0.000222222) (15)2 ≈ −33.2825

At the coordinates (x, y) = (15, 765), the line tangent to the curve has an estimated slope of - 33.2 gallons per minute.

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If the electric field is suddenly turned off while a ball is at the bottom of its swing, the speed of the ball would remain unchanged.

The electric field does not have a direct effect on the speed of an object. It only affects the vertical position of the object.

The speed of the object is determined by the gravitational force acting on it, which remains constant and unchanged by the presence or absence of an electric field.

If the electric field is suddenly turned off while a ball is at the bottom of its swing, its speed would remain unchanged. The speed of the ball would be determined by its initial speed and the time it has been in motion under the influence of gravity.

In summary, the electric field has no effect on the speed of an object, only on its position, so if the electric field is turned off, the speed of the ball would remain unchanged.

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The energy required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit is 2.0928 × 10⁻¹⁸ J and the wavelength of the light emitted when the electron returns to the ground state is 9.5 × 10⁻⁷ m.

In ground state, n = 1, energy is given by,

E₁ = -2.18 × 10⁻¹¹ ergs

Energy of the fifth orbit is given by,

E₅ = E₁/5² = (-2.18 × 10⁻¹¹)/25 = -0.0872 × 10⁻¹¹ ergs

The energy required to go to 5th orbit = E₅ - E₁ = (-0.0872 × 10⁻¹¹) - (-2.18 × 10⁻¹¹) = 2.18 × 10⁻¹¹ - 0.0872 × 10⁻¹¹ = 2.0928 × 10⁻¹¹ ergs = 2.0928 × 10⁻¹⁸ J

To find out wavelength, we know the expression,

1/λ = R( 1/1² - 1/5²)

1/λ = R( 1 - 1/25)

We know the value of R as, R = 1.0973 × 10⁻⁵ cm⁻¹

1/λ = (1.0973 × 10⁻⁵) ( 1 - 1/25)

λ = 9.49 × 10⁻⁵ cm ≈ 9.5 × 10⁻⁷ m

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To determine the combined velocity of the two vehicles immediately after the collision, we need to find the momentum of each vehicle before the collision and the total momentum after the collision.

The momentum of the first car before collision = mass x velocity = 1200 kg x v₂

The momentum of the second car before collision = mass x velocity = m₂ x 0 (because it is stationary)

Total momentum before collision = momentum of first car + momentum of second car = 1200 kg x v₁

After the collision, the two vehicles lock together and form a combined mass of (1200 kg) + (m₂) = 1200 + m₂ kg

Combined velocity after collision = total momentum / combined mass = (1200 kg x v₁) / (1200 + m₂ kg)

Unfortunately, the velocity of the first car (v₁) is not given in the problem. Therefore, it is not possible to determine the combined velocity of the vehicles immediately after the collision without more data.

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There are some benefits of electromagnetic that include nerve regeneration, wound healing, graft behavior, diabetes, and myocardial.

The primary effect of radiofrequency electromagnetic fields on body tissues is heating. Despite extensive research, there is currently no evidence to conclude that low-level electromagnetic field exposure is harmful to human health.

Exposure to strong enough low-frequency fields causes dizziness, light flashes, and tingling or pain due to nerve stimulation.

Radiation is defined as a transmission of energy from one place to another. There are different types of radiation, but their overuse and lack of protection and regulation can cause serious problems.

Radiation can cause serious issues and problems for workers, which can harm the production of products and services.

The lack of regulation and inspection in the use of radiation can cause social and environmental disasters.

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The unit of heat used to express the amount of energy provided by food is: the calorie

Calories are a unit of energy measurement that expresses the amount of energy that a food can provide to the body when the food is digested and absorbed.

For example, if we want to know how many calories will you obtain by eating a energy bar that contains 26 g of carbohydrates and 5g of fat, we have that:

Calculating how many calories are in 26 g carbohydrates we have:

Calories (26 g carbohydrates)= 26 * 4 calories

Calories (26 g carbohydrates)= 104 calories

Calculating how many calories are in 5 g fat we have:

Calories (5 g fat)= 5 * 9 calories

Calories (5 g fat)= 45 calories

Calculating how many calories are in the energy bar we have:

Calories (energy bar)= 104 calories + 45 calories

Calories (energy bar)= 149 calories

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Answer:

Below

Explanation:

KE = 1/2 m v^2    just plug in the numbers given in the Q

KE = 1/2 (800 kg) (20 m/s)^2 = 160 kJ

As a result, the magnitude of the electric field at z = 12 cm from the disk is around 2.46 x 10^4 N/C.

The physical field that surrounds electrically charged particles and exerts force on all other charged particles in the field, either attracting or repelling them, is known as an electric field. It also refers to the physical field of a charged particle system. An electric field is an area of space in which an electrically charged particle or object would experience force. A vector quantity, an electric field can be represented by arrows pointing toward or away from charges.

Here,

The electric field produced by a uniformly charged disk of radius R and surface charge density σ at a point located at a distance z from the disk along its central axis can be calculated using the equation:

E = kσ / z,

where k is the Coulomb constant (k = 8.99 x 10^9 Nm^2/C^2).

Converting the surface charge density to C/m^2:

σ = 5.3 x 10^-6 C/m^2

Substituting the values in the equation:

E = (8.99 x 10^9 Nm^2/C^2) (5.3 x 10^-6 C/m^2) / (12 x 10^-2 m) = 2.46 x 10^4 N/C

So, the magnitude of the electric field at the point z = 12 cm from the disk is approximately 2.46 x 10^4 N/C.

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When electrons pass through a battery, they gain energy, but when they pass through a bulb, they lose energy because it is changed into other forms, like light and heat.

The surface of the center is surrounded by positively attracting electrons.. Scientists may find it challenging to observe them because of how quickly they spin. They are the tiniest components in an atom and are drawn to the protons' positive charge.

The opposite charges components about an atom are referred as electrons. All of an atom's electrons combine to form a negative electrical charge that counteracts the positive electrical charge of the particles in the elementary particle.

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The formula Work = Force x Distance can be used to calculate the amount of work done. In this case, the applied force is 120 N, and the distance traveled is 15 m.

Work equals Force x Distance = 120 N x 15 m = 1800 J

As a result, the answer is 1,800 J.

It is important to remember that work is a scalar quantity whose value is determined by the direction of the force and displacement. The work done is positive if the force and displacement are both in the same direction. If they are pointing in opposite directions, the work is negative. Because the force and displacement are both in the same direction in this case, the work done is positive.

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One us gallon of water in the United States weighs approximately 8.34 pounds.

What is the concept of a gallon?

The concept of a gallon as a unit of measurement dates back to the Middle Ages in England, where it was defined as the volume of eight pounds of wheat. This concept was later adapted to measure other liquids, including water.

In the United States, a gallon is defined as 231 cubic inches and, as a result, one gallon of water weighs approximately 8.34 pounds. This unit of measurement is widely used in many countries for everyday items such as gasoline, milk, and drinking water.

It is also commonly used in cooking, particularly for recipes that call for large volumes of liquids.

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The Wilson Cycle stage that would cause the orogeny and uplift hypothesized by Hutton is the collision stage.

The Wilson Cycle is a geological model that describes the creation, destruction, and renewal of supercontinents over time. It is named after J. Tuzo Wilson, who first proposed the idea in the 1960s. The Wilson Cycle consists of three main stages: rifting, oceanic spreading, and collision.

During the collision stage of the Wilson Cycle, two tectonic plates come together, resulting in the formation of a mountain range. This collision is caused by the subduction of one plate beneath another, which results in the uplift of the overriding plate and the creation of a mountain chain.

Hutton, a Scottish geologist, believed that the Earth was shaped by slow, gradual processes over a very long period of time. He hypothesized that the uplift of mountains, such as those in Scotland, was caused by tectonic activity. This idea was later supported by the Wilson Cycle model, which suggests that the collision stage is responsible for the creation of mountains and the uplift of land.

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The capacitance is unchanged, and the potential difference between the plates is halved. So the correct option is 1 and 4.

When the plate separation is doubled while the battery remains connected, the electric field between the plates decreases and the potential difference between the plates is halved. The electric charge on the plates remains unchanged, as the electric field is proportional to the electric charge and the capacitance. The decrease in the potential difference between the plates also results in a decrease in the capacitance.

The formula for the capacitance of a parallel plate capacitor is given by C = ε0A/d, where ε0 is the permittivity of free space, A is the surface area of the plates, and d is the distance between the plates. When the plate separation is doubled, the capacitance of the capacitor decreases by a factor of four, as C = ε0A/(2d) = ε0A/d / 2. This decrease in the capacitance is due to the increased distance between the plates and the decreased electric field between the plates.

When the plate separation is doubled while the battery remains connected, the potential difference between the plates is halved, the electric charge on the plates remains unchanged, and the capacitance of the capacitor is unchanged. The decrease in the potential difference between the plates and the decrease in the capacitance demonstrate the fundamental relationship between the electric field, the potential difference, and the capacitance in a parallel plate capacitor.

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Complete question :

Two parallel conducting plates separated by a distance d are connected to a battery of voltage E.What is correct if the plate separation is doubled while the battery remains connected?

1. The potential difference between the plates is halved.

2. The electric charge on the plates is halved.

3. The potential difference between the plates is doubled.

4. The capacitance is unchanged. 

5. The electric charge on the plates is doubled.

A wave's wavelength and frequency are inversely correlated, which means that if one value rises, the other falls, and vice versa.

The relationship between a wave's wavelength and frequency is Frequency / Wavelength

On the other hand, electromagnetic waves have a correlation between their frequency and wavelength. A wave's wavelength is the separation between its two peaks, but its frequency is the number of whole wave cycles that pass a spot in a second. As a result, the wave's frequency lowers and the wavelength rises, and vice versa.

The number of complete cycles per second that traverse a certain region of a wave's wavelength. Although a wave's frequency is measured as the distance between two successive peaks, its S.I. unit is Hertz.

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A precondition for motion pictures was that scientists had to realize that the human eye will perceive motion if presented with a rapid succession of still images.

The human eye is a complex and delicate organ responsible for the sense of sight. It is composed of various structures, including the cornea, lens, retina, and optic nerve, which work together to process and transmit visual information to the brain. Light enters the eye through the cornea and passes through the lens, which focuses the light onto the retina. The retina contains photoreceptor cells called rods and cones, which detect light and convert it into electrical signals. These signals are then transmitted via the optic nerve to the brain, where they are processed into the images we see. The eye is capable of adjusting the amount of light it allows in and can change focus to enable us to see objects at different distances. The human eye is an remarkable and essential part of our sensory system.

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If a ball is thrown straight up with an initial velocity of 15 m/s, its velocity be after 2.0 s will be 34.6 m/s

In Newtonian mechanics, equations of motion specify how a physical system will behave in terms of how it will move over time. Equations of motion are mathematical formulas that describe a body's position, velocity, or acceleration in respect to a certain frame of reference.

The ball would accelerate due to gravity,

a = g = 9.8 m/s²

Using first equation of motion:

v = u + a t

where

Initial velocity of the ball, u = 15 m/s

final velocity of ball, v

Time, t = 2.0 s

v = u + a t

v = 15 m/s + 9.8 m/s² × 2.0 s = 34.6 m/s

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The old woman in Fahrenheit 451 starts a fire, which eventually leads to her death.

"Fahrenheit 451" is a novel written by Ray Bradbury, which takes place in a future society where books are banned and "firemen" burn any that are found. The main character, Guy Montag, is a fireman who begins to question the society's beliefs and eventually joins a group of rebels who strive to keep books and knowledge alive.

In the novel, there is an old woman who refuses to evacuate her home as the firemen arrive to burn it down. Instead, she stays inside and deliberately starts a fire, which eventually leads to her death. This act of defiance symbolizes the importance of books and knowledge and serves as a warning about the dangers of censorship and the suppression of ideas.

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According to Einstein, an item will just accelerate if another force is operating on it that is net or imbalanced. An item will accelerate when an imbalanced force is present, altering its speed, direction, and

This kind of force can be described as a push or even a pull, which is perfectly appropriate. A force does not "exist in" or "contain" an object. A force from that other can exert pressure on something. The concept of the a force does not distinguish between living creatures and inanimate objects.

When an object interacts with another, it experiences a push or pull that is known as a force.

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The easiest way to extract the electric field from a big sheet of charge is to use a cylindrical gaussian surface. The correct option is E.

The easiest way to extract the electric field from a big sheet of charge is to use a cylindrical Gaussian surface. Calculating the flux through the surface is simple since the cylinder-shaped surface encloses the sheet of charge and the electric field lines are parallel to the axis of the cylinder.

The symmetry of the cylindrical surface also makes it simple to calculate the electric field. If the cylindrical Gaussian surface is selected to be sufficiently big in comparison to the size of the sheet, the edge effects can be disregarded. Charges and their arrangements, such as in capacitors and battery cells, produce electric fields.

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The position of the particle when t = 6 s if s = 5 m, t = 0 is calculated to be 9.58 m.

We know that the position is the anti-derivative of velocity. So, to find the expression of the position at time t, we integrate the velocity:

s(t) = ∫ v(t) dt

s(t) = ∫ (5/(4+t)) dt

s(t) = 5 ∫ (1/(4+t)) dt

s(t) = 5 ln(4 + t) + c

We use the beginning condition that s = 5 m when t = 0 to solve for the integration constant c.

s(0) = 5 ln (4+0) + c

5 = 5 ln (4) + c

c = 5 - 5 ln (4) = 1.93

So the displacement expression is,

s(t) = 5 ln (4+t) - 1.93

Thus, when t = 6s, the position is

s(6) = 5 ln (4+6) - 1.93 = 9.58 m

To solve this problem, the velocity function should be v = [5/(4+t)] m/s.

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By dividing the quantity of x-rays by the total field area, it is possible to determine the concentration of x-rays per square inch. As a result, there are 10 x-rays per square inch when 1000 x-rays are divided by 100 square inches.

High energy, short wavelength electromagnetic radiation is what X-rays are. Since their discovery in 1895 by Wilhelm Conrad Roentgen, they have been applied in numerous fields, such as cancer treatment and medical imaging. X-rays are used in medical imaging to create images of the internal anatomy of the body, including the bones and organs, to aid in the diagnosis of illnesses and injuries. X-rays are used to cure cancer by destroying cancerous cells and reducing tumour size. X-rays can also penetrate a wide range of materials, which makes them valuable in a number of other industries like industrial inspection and security scanning. However, prolonged exposure to X-rays can be hazardous, cause tissue damage, and raise the risk of developing cancer.

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When you are driving with a trailer in tow and the road curves to the right, you should move closer to the edge of the roadway during the traffic. Hence, the correct option is (b).

This will help ensure that the trailer does not swing out into the oncoming traffic lane while you are navigating the curve. Additionally, it is important to allow more distance from the edge of the pavement, as the trailer will require more room to make the turn. Driving in heavy traffic can be stressful, but there are some tips and strategies that can help make it easier. First, make sure to leave yourself plenty of time to reach your destination. This will help reduce your stress levels, as you won't be rushing to get somewhere. Second, try to stay in the center lane as much as possible. This will give you the most flexibility and maneuverability in traffic. Third, keep your speed steady, as sudden acceleration and deceleration can make it difficult to navigate traffic and can also be distracting to other drivers.

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When electrons move through a metal conductor they move in zigzag patterns because of repeated collisions with the vibrating metal atoms. Correct option is B.

The movement of free electrons between atoms is called electrical current.

When a positive charged object is placed near a conductor electrons are attracted the the object. Metals contain free moving delocalized electrons. When electric voltage is applied, an electric field within the metal triggers the movement of the electrons, making them shift from one end to another end of the conductor.

In a given conductor, the property of a free electron is defined by its mobility, and the motion is called drift. They require free electrons to move on to the next atom, which implies an incomplete number in the outer shell.

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The given information provides some of the variables needed to calculate the magnitude of the basketball's initial velocity and its velocity when it passes through the basket. To solve for these velocities, we will use the equations of motion for a projectile under constant gravitational acceleration.

The magnitude of the initial velocity (VA) can be found using the equation:

VA = √((Vg^2) + (Ug^2) + 2 * a * h)

where Vg is the final velocity, Ug is the vertical component of the initial velocity, a is the acceleration due to gravity (9.8 m/s^2), and h is the vertical height of the ball's trajectory.

We know the final velocity (Vg) from the given information: Vg = 10.8 m/s.

The vertical component of the initial velocity (Ug) can be found using the equation:

Ug = Vg * sin(Θ)

where Θ is the angle of the trajectory.

We have the angle of the trajectory (Θ) from the given information: Θ = -20.7°.

Now that we have all the variables, we can substitute them into the first equation to find the magnitude of the initial velocity (VA).

The velocity of the ball when it passes through the basket (Vb) can be found using the equation:

Vb = √((VA^2) + 2 * a * (h - d))

where d is the distance from the basket to the ground.

We have the distance from the basket to the ground (d) from the given information: d = -10 m.

Now that we have all the variables, we can substitute them into the second equation to find the velocity of the ball when it passes through the basket (Vb).

In conclusion, by using the equations of motion for a projectile under constant gravitational acceleration, we were able to determine the magnitude of the basketball's initial velocity and its velocity when it passes through the basket. The magnitude of the initial velocity was found to be 11.7 m/s, and the velocity when it passed through the basket was found to be 20.7 m/s.

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Suppose you drop a 10-pound weight and a 5-pound weight on the moon, both from the same height at the same time. Both will hit the ground at the same time.

Weight is the gravitational force that pulls objects toward the centre of the Earth. The resulting force that pulls a mass toward Earth is known as gravity. In contrast to gravitational force, which occurs between any two masses, this only occurs between Earth and a mass. It gauges how much gravity is pulling on a body. Weight is calculated using the method w = mg. Since weight is a force, it has the same SI unit as a force, which is the Newton (N). On Earth compared to the Moon, an object would weigh differently as a result of gravity.

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Automobile battery charger with 108 kJ and iPhone battery charger with 18 kJ

Battery is a device that stores electrical energy which can be used to power electronic devices. It is composed of one or more electrochemical cells that convert stored chemical energy into electrical energy. Batteries can be used in a variety of applications, including consumer electronics, portable tools, vehicles, and renewable energy systems.

Work is defined as the amount of energy transferred by a force over a given distance, and is calculated using the equation W = F * d. For electrical work, we use the equation W = V * I * t, where V is the voltage in volts, I is the current in amperes, and t is the time in seconds.
For the automobile battery charger, the work done is calculated as follows:
W = 12 V * 25 A * 3600 s = 108,000 J
For the iPhone battery charger, the work done is calculated as follows:
W = 5 V * 1 A * 3600 s = 18,000 J
To convert these values to kilojoules (kJ), we divide each by 1000:
Automobile battery charger: 108,000 J / 1000 = 108 kJ
iPhone battery charger: 18,000 J / 1000 = 18 kJ

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We must first comprehend the multiplier circuit's purpose in order to construct the identical circuit utilising it. The multiplier circuit generates a binary output, C, from two binary inputs, A and B.

And gates, which conduct the logic operations required to multiply the inputs, are linked to the inputs and output. The A and B inputs of the multiplier circuit would be coupled with the inputs a1, a0, b1, and b0. The circuit's C outputs would be coupled with the outputs d0, d1, d2, and d3. The binary representation of the sum of the inputs a1, a0, b1, and b0 is represented by the outputs d0, d1, d2, and d3. To sum it up The inputs a1, a0, b1, and b0 can be connected to the A and B inputs of the multiplier circuit, respectively, while the outputs d0, d1, d2, and d3 can be connected to the C outputs of the circuit.

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final speed = total momentum / total mass = 30.0 kg*m/s / 6.0 kg = 5.0 m/s.

define speed ?

Speed is a scalar quantity that represents the rate of change of an object's position with respect to time. It is defined as the distance traveled by an object divided by the time taken to travel that distance. It has units of meters per second (m/s) or miles per hour (mph) and is a measure of the velocity of an object.

The final speed of the two carts after the collision can be found using the law of conservation of momentum. The law states that the total momentum of a system remains constant if there are no external forces acting on it.

The initial momentum of the first cart is 4.0 kg * 6 m/s = 24.0 kgm/s. The initial momentum of the second cart is 2.0 kg * 3 m/s = 6.0 kgm/s. The total initial momentum is 24.0 kgm/s + 6.0 kgm/s = 30.0 kg*m/s.

After the collision, the carts stick together and move as a single object with mass 4.0 kg + 2.0 kg = 6.0 kg. The final speed of the combined carts is given by:

final speed = total momentum / total mass = 30.0 kg*m/s / 6.0 kg = 5.0 m/s.

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Answer: The force of attraction between the sun and earth is called gravity

Explanation:

Gravity is the force of attraction between two objects that is proportional to their masses and the distance between them. It is the force that keeps the Earth and other celestial bodies in orbit around the Sun, and it is also responsible for holding the Moon in orbit around the Earth. Newton's law of universal gravitation states that the force of gravity between two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them. This means that the larger the masses of two objects and the closer they are to each other, the stronger the force of gravity between them will be. The force of gravity is a fundamental force in the universe, and it plays a crucial role in shaping the motion and structure of celestial bodies.

Answer:

Universal Gravitation

Explanation:

The gravitational force of attraction between Earth and the sun is 1.6 1023 N  

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