What is the plate tectonic theory? *

A full valence shell is one that is filled with the maximum number of electrons that it can hold. For all shells except the first shell, this number is 8 electrons.

Electrons are subatomic particles that have a negative electrical charge. They are the primary component of atoms, and they are responsible for most of the properties of chemical elements. Electrons orbit around the nucleus of an atom, and they can move freely between atoms in a chemical reaction. Electrons can also form bonds with other atoms, allowing them to create molecules and other compounds. Electrons also play a major role in electricity, as they are the particles that move through wires and other conductors, carrying energy from one place to another.

This is because each shell can hold a maximum of 2 electrons per sub-shell, and each shell has four sub-shells (s, p, d, and f). So, 2 electrons x 4 sub-shells = 8 electrons.

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The average force exerted on the pillow -32 N.

Force is an external influence that can change the velocity or motion of an object.

The momentum of an object is the product of its mass and velocity.

So, in the case of an 8-kg bowling ball rolling at 2 m/s, the momentum would be: momentum

= 8 kg x 2 m/s

= 16 kg m/s

To calculate the average force that the bowling ball exerts on the pillow, we can use the equation:

force = change in momentum / change in time

The change in momentum is equal to the final momentum minus the initial momentum.

Since the bowling ball is rolling at 2 m/s and stops in 0.5s,

we can assume that its final momentum is 0 (since it stops moving) and the initial momentum is 16 kg m/s.

change in momentum = final momentum - initial momentum

= 0 - 16 kg m/s

= -16 kg m/s

change in time = 0.5s

So,

force = -16 kg m/s / 0.5 s

= -32 N (Newton)

Therefore the average force exerted on the pillow is -32 N.

the question is incomplete, the complete question is "What is the momentum of an 8-kg bowling ball rolling at 2 m/s? If the bowling ball rolls into a pillow and stops in 0.5 s, calculate the average force it exerts on the pillow".

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The comparison of two quantities by division of two similar quantities is called ratio and proportion and the given statement is true.

A ratio is a way of comparing amounts. A ratio shows the number of times an amount is contained in another, or how much bigger one amount is than another.

The two numbers are both parts of the whole, If I need to mix some cement, then I could add two parts cement to four parts sand. Hence the ratio 2:4 (6 parts in total). The written bis important; 4:2 would give a different mix.

Ratios are written to their simplest form. In the figure to the right we have 15 red dots and five green dots. The ratio is 15:5; however, this can be reduced to the simplest form as we do with fractions.

The ratio as we can see in the graphic is also 3:1, if you look at the relationship of the numbers 15:5 as is 3:1, we can see that 3 is multiplied by 5 to get 15 and so is the one to get five.

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The delay vector for node F as follows:

F: [5, 2, ∞, ∞, ∞, 0, ∞, ∞]

This means that the estimated delay from node F to node A is 5, to node B is 2 and to node F itself is 0. And all other nodes are unreachable.

The Distance Vector Routing algorithm, also known as Bellman-Ford algorithm, is used to calculate the shortest path from a given source node to all other nodes in a network.

To calculate the new estimated delays from node F, we first initialize the delay vector for node F as follows:

F: [0, ∞, ∞, ∞, ∞, ∞, ∞, ∞]

Next, we update the delay vector for node F using the delay vectors received from its neighbors. For example, using the information provided in here, we can update the delay vector for node F as follows:

F: [5, 2, ∞, ∞, ∞, 0, ∞, ∞]

This means that the estimated delay from node F to node A is 5, to node B is 2 and to node F itself is 0. And all other nodes are unreachable.

We then repeat this process of updating the delay vector until the estimates converge and no further updates are required.

This is a simplified process and in real world scenario there will be more number of nodes and edges, and also the cost of each edge will be different.

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Answer: 115 N

Explanation:

In this case, the ball has a weight of 15 N (force due to gravity) acting on it and the cannon is shooting it with a force of 100 N.

To find the net force on the ball, we add the forces acting on it.

Net force = force due to gravity + force due to the cannon

Net force = 15 N + 100 N

Net force = 115 N

So, the net force on the ball will be 115 N. ✅

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To find the magnitude of a uniform electric field, we can use formula E = (k * Q) / r^2.

The magnitude of the electric field is simply described as the force per charge on the test charge. The standard metric units on electric field strength come from its definition. Since electric field is described as a force per charge, its units would be force units divided by charge units.

The electric field formula or magnitude of electric field equation for an electric charge Q at distance r from the charge is:

E = (k * Q) / r^2

where:

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The ball will continue according to the concept of Inertia and in a straight line according to Newton's first law of motion.

It states that, an object at rest or in a linear motion will continue to be at rest or in its linear motion except an external force act on it.

Given that a ball is attached to a string and spun in a circular path.

In a circular motion, the speed of the object is the same but the velocity is not because the object tend to move in a different straight line direction.

If the string snaps and the ball continues outward from that point in a straight line path, The Newtonian concept that explain this is the concept of Inertia that emanate from the First Newton's Law of Motion

Therefore, the correct answer is First Newton's Law of Motion

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A 4kg object possesses 18J of kinetic energy then 3m/s will be its velocity.

Given:

Maas of object- 4kg

Kinetic energy-18J

Velocity-?

Kinetic energy is the energy possessed by a moving object, depending on its mass and velocity.

therefore,Kinetic energy =1/2 x mv^2

18J = 1/2 x 4kg x v^2

18J = 0.5 x 4kg x v^2

18J = 2kg x v^2

v^2 = 18/2

v^2 = 9

v = √9 (square root of 9)

v = 3 m/s

The velocity of a 4kg object with 18J of kinetic energy will be 3m/s.

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The work required to lift the block with a force of 2.2 · 10⁴ N at the distance/displacement of 2 meters is equal to 44,000 joules.

Force, according to Newton's law of motion, is equal to mass times acceleration. Newton is the standard unit of force. For an object to accelerate, there must be a net force acting on it.

When a force acts on an object and makes it move, the object is said to transfer energy. This is called work in physics. Mathematically speaking, work W is equal to force F times distance x (W = F · x). Joule is the standard unit of work.

Suppose that F equals 2.2 · 10⁴ newtons and x equals 2 meters. The work done is calculated as follows:

W = F · x

W = 2.2 · 10⁴ · 2

W = 44,000 joules

We have confirmed that the work needed to lift the block is equal to 44,000 joules.

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Where Vp is the primary voltage, Vs is the secondary voltage, Np is the number of loops in the primary coil, and Ns is the number of loops in the secondary coil.

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Arrow starting from the dot, pointing away from the dot in the direction of the crane's motion. Force of the crane lifting the box: Arrow starting from the dot, pointing away from the dot in the upward direction.

What is the Crane?

The Crane is a machine used in construction and engineering to lift and move heavy objects. It is usually composed of a tall, rotating arm with a hoist at the end, operated by an operator in a cab. Cranes come in a variety of sizes, from small models that can lift a few hundred pounds to huge machines that can move thousands of tons at once. Most cranes are attached to a fixed structure, such as a building or pier. Cranes can also be mounted on vehicles, such as trucks, to move around a worksite. Cranes are essential tools in the construction industry, as they allow workers to move large objects with ease and speed. Cranes are also used in a variety of other industries, such as manufacturing, shipbuilding, and material handling.

This force is the result of the crane pushing the box forward at a constant speed of 5 m/s.

This force is the result of the crane lifting the box with an upward acceleration of 1 m/s.

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Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs) use a range of different cooling systems to ensure that their batteries, motors, and other components are kept at optimal temperatures.

Generally, EVs and HEVs use air-cooling systems that draw air over the components to keep them from overheating. Some EVs and HEVs also have liquid-cooling systems, which use coolant to more efficiently dissipate heat away from the components.

Additionally, some EVs and HEVs use a combination of both air and liquid cooling systems for maximum efficiency.

Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs) have different cooling systems to keep their batteries and motors running optimally.

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According to the given statement the object has covered 400 meters distance has it covered.

The point where light rays from an object meet, or appear to meet after reflection or refraction, is sometimes referred to as the image. In this concept, a "object" might be anything that light rays are emanating from.

To find the distance covered by an object as it increases its speed from 0 to 40 meters per second in 20 seconds, we can use the formula:

Distance = (Initial speed + Final speed) x Time / 2

In this instance, the time is 20 seconds, the beginning speed is 0 m/s, and the ultimate speed is 40 m/s. With these values entered into the formula, we obtain:

Distance = (0 + 40) x 20 / 2 = 800/2 = 400 meters

So the object has covered 400 meters.

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The correct match of the change in mass or distance and the effect of change on the gravitational force between two objects are given below:

d → 2d and m in unchanged ----> Fg → (1/4) Fg

m → 2m and d is unchanged --->  Fg → (2) Fg

d → 2d and m → 2m   ---> Fg →  Fg

d → (1.2) d and m is unchanged --->  Fg → (4) Fg

m → (1/2) m and d is unchanged ---> Fg → (1/2) Fg

Gravitational force is the force that pushes mass-containing objects toward one another. We frequently consider the pull of gravity from the Earth. Your body is kept on the ground by this force. However, all mass-bearing objects are pulled toward one another by gravity.

The gravitational force depends on the magnitude of the masses and the distance between the masses.

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To reduce fuel consumption while maintaining vehicle performance, driver comfort, and component constraints energy management control system is required in HEV.

A supervisory algorithm, also known as an energy management strategy, is necessary for hybrid vehicles to control the different parts of the drivetrain. Usually, when designing an energy management strategy, we face two challenges.

First off, the nonconvex cost function produced by the components' nonlinear behavior makes the employment of optimization techniques more challenging. There are several methods mentioned for dealing with nonconvexity.

Second, it is unknown what the future power and velocity trajectories will be. Using historical or projected vehicle velocity and road grade trajectories to forecast future trajectories could aid in finding a solution that is close to ideal.

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The instantaneous angular speed of a spinning amusement park is 0.70rad/sec.

The definition of angular speed is the rate at which angular displacement changes.

To find the instantaneous angular speed of the spinning ride, we can use the equation:

ωf = ωi + αt

where ωf is the final angular speed, ωi is the initial angular speed, α is the angular acceleration, and t is the time.

Given that:

ωi = 0.50 rad/s

α = 0.20 rad/s²

t = 1.0 s

so, we can substitute these values into the equation and solve for ωf:

ωf = 0.50 rad/s + (0.20 rad/s² * 1.0 s)

ωf = 0.50 rad/s + 0.20 rad/s

ωf = 0.70 rad/s

The instantaneous angular speed of the spinning ride is 0.70 rad/s after 1s of constant angular acceleration of 0.20 rad/s².

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The position of the particle when t = 4 is 240 m. The position of an object can change over time, and the rate at which its position changes is called its velocity.

In physics, position refers to the location of an object in space. It is often described by a set of coordinates, such as (x, y, z) in three-dimensional space or (x, y) in two-dimensional space. Position is a vector quantity, which means it has both a magnitude (the distance from a reference point) and a direction.

The position of the particle can be found by integrating the velocity function with respect to time. Integrating v(t) = 4t³ + 1 with respect to t gives us x(t) = t⁴ + t + C, where C is the constant of integration. Since the position of the particle is x = 1 when t = 2, we can use this information to find the value of C.

x(2) = 2⁴ + 2 + C = 17 + C = 1

C = -16

Therefore, the position of the particle when t = 4 is given by x(4) = 4⁴ + 4 - 16 = 256 - 16 = 240

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The statement "before each trial one should reshape the bob into something like a ball" is false regarding the experiment.

If we assume the collision between the bob and the box is completely inelastic, then shape of the bob does not play any role in the time period of the plumb bob or the collision impact of the bob on the box. However the second statement which says that the initial position for the box should be just touching the pendulum bob, is true. This is because then initial position of the bob will become the mean position and we know at the mean position the kinetic energy of the bob is maximum.

For the third statement, the pendulum bob should hit close to the bottom of the box during the collision to make the box move, is also true. This is because the bottom surface experiences the maximum friction force, which can be reduced at maximum amount if bob impact closer to the bottom.  

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The total initial momentum of 7.0 kgm/s is 2.8 kgm/s,

This scenario describes an inelastic collision between two carts. In an inelastic collision, the total kinetic energy of the system is not conserved and some of it is converted into other forms of energy, such as heat or sound.

Using the principle of conservation of momentum, we can calculate the final velocities of the two carts after the collision. The initial momentum of the first cart is 1.0 kg * 5.0 m/s = 5.0 kgm/s. The initial momentum of the second cart is 1.0 kg * 2.0 m/s = 2.0 kgm/s. The total initial momentum of the system is 5.0 kgm/s + 2.0 kgm/s = 7.0 kg*m/s.

After the collision, the final momentum of the two carts is equal to the total initial momentum, since no external forces are acting on the system. Therefore, the final momentum of the first cart + the final momentum of the second cart = 7.0 kg*m/s.

We can use the final velocities given in the problem to solve for the final momentum of each cart.

The final momentum of the first cart is 1.0 kg * 0.50 m/s = 0.50 kgm/s

The final momentum of the second cart is 1.0 kg * 2.3 m/s = 2.3 kgm/s

And add them: 0.50 kgm/s + 2.3 kgm/s = 2.8 kgm/s, which is equal to the total initial momentum of 7.0 kgm/s.

We can also observe that the final velocity of the first cart is less than its initial velocity, while the final velocity of the second cart is greater than its initial velocity. This is expected in an inelastic collision as some of the kinetic energy of the system is converted into other forms of energy, causing the final velocities of the carts to be different from their initial velocities.

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Representations of Each Part are:

The objects inside the system are the two boxes, they should be circled with a dotted circle.

Free-body diagrams showing and labeling the forces (not components) exerted on each box. Draw the relative lengths of all vectors to reflect the relative magnitudes of all the forces and identify the external forces.

Sketch a graph of the net external force vs. t for each box on the same axis will using two different colors and providing a key.

Using the equation for the area of a rectangle, A= bh, the area of the rectangle between the net external force vs. time line and the x-axis on the graph created in Part C can be written as:

With words: The area of the rectangle is equal to the base times the height.

With units: A = (Fnet)(t) N × s

Re-represent the data above by creating a momentum diagram for each box on the same set axes by using two different colors and providing a key. (A momentum diagram represents the momentum of an object or system by showing the mass of the object as the width of bar on the chart, and the velocity of the object as the height of the bar.

This part whether the impulse given to the first box while it is speeding up is greater than, less than, or the same as the impulse given to the second box while it is speeding up. Impulse is the product of force and time and it is the change in momentum.

To determine the ranking of the impulse given to the two boxes, we would need to know the specific forces applied to each box and the duration of time over which those forces were applied. The impulse experienced by an object is the product of the force applied and the time over which it was applied. Without this information, it is not possible to determine whether the impulse given to the first box was greater than, less than, or the same as the impulse given to the second box.

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The specific latent heat of fusion for the substance in question 1a is 80 kJ/kg, and the specific latent heat of vaporization for the substance in question 1b is 250 kJ/kg.

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The equation relating voltage, current and resistance is V = IR, this is because voltage in a circuit increases with increase in current and resistance and vice versa.

Ohm's law states that the current flowing in a conductor is directly proportional to the voltage across the conductor.

Mathematically, the formula for Ohm's law is given as;

V = IR

where;

The given data

Voltage ( V )       Current ( I )      Resistance ( R)

4                               2                          2

12                              8                          4

6                               3                           3

From the equation given above, the voltage in the circuit increases with increase in the current and resistance and decreases with decrease in the current and resistance.

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When Jeff ran up a hill at 7.0 m/s, the vertical component of his velocity was 4.8 m/s and the horizontal component of his velocity vector was 5.1 m/s.

The direction of movement of the body or item is defined by velocity. Speed is fundamentally a scalar number. Velocity is, in essence, a vector quantity. It is the pace at which distance changes. It is the displacement rate of change. Speed is the pace at which an item moves along a route in time, whereas velocity is the rate and direction of movement. In other words, velocity is a vector, whereas speed is a scalar number. Simply put, velocity is the rate at which something travels in a certain direction. For example, the speed of a car driving north on a highway or the speed of a rocket after launch.

Here,

the vertical component of Jeff's velocity,

=√7²-5.1²

=4.8 m/s

The vertical component of Jeff's velocity is 4.8 m/s when Jeff ran up a hill at 7.0 m/s, the horizontal component of his velocity vector was 5.1 m/s.

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The angle of refraction is 73.68°. The result is obtained by using the Snell's Law formula.

The Snell's Law is a formula to describe the relationship between the angles of incidence and refraction when a light passes through two media. It can be expressed as

n₁ / n₂ = sin θ₂ / sin θ₁

Where

Note that the angles are measured from the normal line.

We have

Find the angle of refraction! (θ₂ = ?)

Using the Snell's Law formula, we sill get the angle of refraction.

n₁ / n₂ = sin θ₂ / sin θ₁

1.92 / 1.0003 = sin θ₂ / sin 30°

sin θ₂ / 0.5 = 1.9194

sin θ₂ = 1.9194 × 0.5

sin θ₂ = 0.9597

θ₂ = Arc sin 0.9597

θ₂ = 73.68°

Hence, the refracted angle is 73.68°.

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Answer:

74 degrees

Explanation:

We can describe the sew speed as, calculate the measured stitches per unit and divide by reduction ratio.

Sewing machines are invented during the first Industrial Revolution to decrease the amount of manual sewing work performed in clothing companies. The speed is an important issue for sewing. All machines are not same, all operators are not equal experienced in production, quality expectation, stitch type, etc.

Since the invention, the efficiency and productivity of the clothing industry has been greatly improved. Now various types of sewing machines are used for sewing depending on different stitches. Most of them are automatic and run by motor.

When stitch is formed, three things come into factor such as needle thread, fabric types and bobbin thread or looper thread (Webster et al., 1998). Seam strength completely depends on quality of fabric and sewing machine.

Sewing thread needs to choose according to the properties of fabric (Chowdhary et al., 2006). Since seam strength is dependent on the thread strength, a reduction in thread strength during sewing will lead to lower seam strength.

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The air contains a higher concentration of oxygen than carbon dioxide. Option A

When we talk about the process of inhalation, we mean the process by which a person can be able to draw in air. The drawing in of the air by the person is going to make the alveoli to be full of air that has been oxygenated.

It should also be recalled at this point that human beings breathe in oxygen and then breathe out carbon dioxide which is the waste product of the process as described.

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The player serving the ball is the server.

option C is the correct answer.

The right back player of the serving team shall be the first server of the game. In volleyball, the serving player will always be the player that is standing in position 1.

After the right back player of the serving team start the serving process of the game, afterwards the player rotating from the right forward to the right back position shall be the server (clockwise rotation). Rotation occurs after opponents side-out.

Thus, the player that serves the ball is known as the server.

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The toy train and the car move off together at speed of 0.4 m/s.

According to the law of momentum conservation, momentum is only modified by the action of forces as they are outlined by Newton's equations of motion; momentum is never created nor destroyed inside a problem domain.

From conservation of momentum, we get:

Total initial momentum = total final momentum

0.1 kg × 1.0 m/s + 0.15 kg × 0 m/s = ( 0.1 kg + 0.15 kg) × v

v  = (0.1/0.25) × 1.0 m/s

v = 0.4 m/s.

Hence,  they move off together at speed of 0.4 m/s.

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A box being moved across the room by a mover. A pool chair is blown across the yard by wind. A barbell is raised off the ground by a weightlifter.

Do weightlifters have strength?

Flexibility is important. In addition to being exceptionally strong and powerful, weightlifters are also very flexible. In fact, they are some of the most flexible athletes. To perform this same lifts with the required ranges of motion, extreme levels of versatility are needed.

Is lifting weights a skill?

Lifting weights is a skill. Additionally, it is preferable to study, acquire, and hone talents when you are rested and alert. You'll have to have some gas left in the barrel if you desire to be able to study it again in only a few of days.

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Answer:when you lifting weights

Explanation: