PLEASE HELP ASAP

A stone is thrown horizontally from the top of a 18.4 m tail cliff. The stone lands
at a distance of 22.3 m from the edge of the cliff. What is the initial horizontal
velocity of the stone?

The magnitude of the average force on the bumper that collapses 0.2m while bringing a 900 kg car to rest from its initial speed of 1.12m/ s is 2.8×10³N.

The car is hitting an immovable object such as a tree and it's going at 4km/ h and its initial direction is to the left. It comes to a stop within 0.2 m. So the car travels 0.2m and there is only one force acting on it which is the force due to the bumper. So the force applied by the bumper is the net force and the work done by it is the net work done. The net work done is the change in kinetic energy.  The change in kinetic energy is 1/2×m×v². The work done by the bumper is, W=F×d, where d =0.2m.

Now 1/2×900×(1.12)²= F×0.2 , F=(900×1.12×1.12)/(0.2×2) , F=2.8×10³ N.

For further learning about average force, follow the link:

https://brainly.com/question/29803912

#SPJ4

The effort done in speeding an object down a frictionless, horizontal surface was equal as the change throughout potential energy.

The two examples above show the two types of potential energy that will be mentioned: gravitational potential energy as well as elastic potential energy. The energy held in an object because a result among its vertical position as well as height was referred to as gravitational potential energy.

The energy that was stored because a result of such Earth's gravitational attraction to the item. The gravitational potential energy of a demolition machine's heavy ball is determined by two variables: the mass of such ball as well as the height from which it was elevated.

There exists a direct relationship between gravitational potential energy as well as object mass. The gravitational potential energy of larger objects is greater.

To know more about potential energy here

https://brainly.com/question/13997830

#SPJ4

The percentage uncertainty in measuring cross sectional area  is ± 2.50 %. Hence, Option (A) is correct.

The percent error is the distinction between the estimated value and the actual value in relation to the actual value.

The diameter of a wire being tested is measured as d = 0.40 ± 0.005 mm.

The percentage error = (Δd/d) × 100 %

= {(± 0.005 )/0.4} × 100 %

= ± 1.25 %

Now, cross-sectional area: A = πd²/4

So, the percentage uncertainty in measuring cross sectional area = (ΔA/A) × 100%

= 2 × (Δd/d) × 100 %

= 2 ×  ± 1.25 %

= ± 2.50 %

Learn more about  percentage error here:

https://brainly.com/question/28746643

#SPJ1

The percentage uncertainty in the result of the calculation when d is used to determine the cross-sectional area of the wire is 1.25%. Thus, the correct option is C.

Percent uncertainty is fractional uncertainty which is expressed as a percent, that is fractional uncertainty multiplied by 100. The word uncertainty, by itself, normally means absolute uncertainty. Percent uncertainty is the ratio of the expanded uncertainty to the measured quantity on a scale which is relative to 100%.

Fractional error = ± 0.005/ 0.40 = ± 0.0125

Percentage error = Fractional error × 100 = 0.0125 × 100

Percentage error = 0.0125 × 100 = 1.25%

The percentage uncertainty in the result is 1.25%.

Therefore, the correct option is C.

Learn more about Uncertainty here:

https://brainly.com/question/14889571

#SPJ1

Correct option is B, The given equation is Balanced.

An element is balanced if it has the same amount of atoms on both sides of the equation. The equation is balanced if all the components are in balance.

A chemical equation is imbalanced and unable to accurately explain what transpires during a reaction if the numbers of each type of atom on the two sides are different. The equation must first be balanced in order to continue.

Equal numbers of atoms from various elements are present in both the reactants and the products in balanced chemical equations. Varied elements' atom counts in the reactants and products of unbalanced chemical equations are different.

The number of atoms of Nb element on both sides = 4

The number of atoms of oxygen on both sides = 10

∴ The given equation is Balanced equation.

To learn more about Balanced equation from given link

https://brainly.com/question/11904811

#SPJ1

The necessary force to produce this deceleration is  403200 Newton.

The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

A spring balance can be used to calculate the Force. The Newton is the SI unit of force.

Mass of the system is: m =  2100 kg.

Deceleration of the system is = 192 m/s²

Hence, force applied on the system is = 2100 × 192 Newton

= 403200 Newton.

Learn more about force here:

https://brainly.com/question/13191643

#SPJ1

Answer:

The answer is -320 J.

Answer:

-320 J.

Explanation:

Osmotic pressure: (Highest)  1 M BeCl₂  > 1 M LiCl = 2 M CH₃CH₂CH₂OH  > 1 M C₆H₁₂O₆ (Lowest)

Osmotic pressure is the hydrostatic pressure that builds up in more concentrated solutions when osmosis occurs. It is this osmotic pressure that will maintain osmotic equilibrium between a solution and its pure solvent separated by a semipermeable membrane.

The osmotic pressure (Π)

Π = i*C*R*T

i = Van't Hoff factor

' i ' is the number of ions formed after the dissociation of ionic compounds in water.

C = molar concentration of solute

R = gas constant

T = Temperature

1 M BeCl₂

C = 1 M

BeCl₂ → Be²⁺ +  2Cl⁻

so, after complete dissociation of 1 molecule BeCl₂, forms 1 Be²⁺ and 2 Cl⁻ ions.

i = 1 + 2

i = 3

Π = i*C*R*T

Π = 3*1*R*T

Π = 3RT

1 M LiCl

C = 1 M

LiCl → Li⁺ + Cl⁻

So, after complete dissociation of 1 molecule LiCl, forms 1 Li⁺ and 1 Cl⁻ ions.

i = 1 + 1

i = 2

Π = i*C*R*T

Π = 2*1*R*T

Π = 2RT

2 M CH₃CH₂CH₂OH (does not dissociate into ions)

CH₃CH₂CH₂OH → CH₃CH₂CH₂OH

i = 1

C = 2 M

Π = i*C*R*T = 1*2*R*T = 2RT

Π = 2RT

1 M C₆H₁₂O₆ (does not dissociate into ions)

C₆H₁₂O₆ → C₆H₁₂O₆

i = 1

C = 1 M

Π = i*C*R*T

Π = 1*1*R*T

Π = RT

So Osmotic pressure: (Highest) 1 M BeCl₂ > 1 M LiCl = 2 M CH₃CH₂CH₂OH > 1 M C₆H₁₂O₆ (Lowest)

Your question is incomplete but most likely your complete question is in the image.

Learn more about osmotic pressure at https://brainly.com/question/25904085

#SPJ4

The velocity of the 200.0 g mass will be 10 cm/s.

This question involves the collision of two plastic balls, one with a mass of 200.0 g and the other with a mass of 100.0 g.

The 200.0 g ball has an initial velocity of 30.0 cm/s, while the 100.0 g ball has an initial velocity of 10.0 cm/s. After the collision, the velocity of the 100.0 g ball is 26 cm/s. In order to determine the velocity of the 200.0 g ball after the collision, we must use the law of conservation of momentum.

Momentum is defined as the product of mass and velocity and is conserved during an elastic collision.

Therefore, the momentum of the system before the collision must equal the momentum of the system after the collision. We can calculate the momentum of the system before the collision by multiplying the mass of each ball by its velocity:

Momentum before collision = (200.0 g * 30.0 cm/s) + (100.0 g * 10.0 cm/s) = 5000 g cm/s

Momentum after collision = (200.0 g * V2) + (100.0 g * 26 cm/s) = 5200 g cm/s

By solving for V2, we can determine the velocity of the 200.0 g ball after the collision:

V2 = (5200 - 5000) / 200 = 10 cm/s

Therefore, the velocity of the 200.0 g ball after the collision is 10 cm/s.

To learn more about velocity, click here:

https://brainly.com/question/18084516

#SPJ4

The ball will travel horizontally for 883.7 m. The result is obtained by using the formula for the range of projectile motion.

The range of projectile motion is the maximum distance covered on x-axis. It can be calculated by

R = (v₀² sin 2θ)/g

Where

A ball is thrown from ground level.

Find the horizontal maximum distance!

We use g = 9.8 m/s².

Using the formula above, we get

R = (v₀² sin 2θ)/g

R = (100² × sin 2(30°))/9.8

R = (10000 × sin 60°)/9.8

R = (10000 (½√3))/9.8

R = (10000 (½√3))/9.8

R = 883.7 m

Hence, the horizontal maximum distance of the projectile motion is 883.7 m.

Learn more about projectile motion here:

brainly.com/question/30004444

#SPJ4

True: Erik Erikson's theory of psychosocial development emphasizes that development occurs by overcoming an emotional crisis in each of the eight stages of one's lifetime.

According to Erik Erikson's theory of psychosocial development, growth happens when a person successfully navigates an emotional crisis at each of life's eight stages. The epigenetic concept served as the foundation for Erikson's theories. According to this theory, humans develop in a series of steps that take place over time and within the framework of a broader community. Thus, the given statement is true.

This philosophy goes through eight distinct stages, each with internal conflicts. Each phase of growth, in accordance with Erikson's theory, builds on the phases that came before it and paves the way for the stages of growth to follow. According to Erikson, conflicts that humans experience at various stages of development serve as turning points in their development.

To know more about Eriksson's theory, refer to the following link:

https://brainly.com/question/6437958

#SPJ4

The voltage drop across the 40.0 resistor is 8.00 V and the current is 0.300 A. The voltage drop across the 10.00 resistor is 4.00 V and the current is 0.300 A.

Voltage Drop across 10.00 ohm resistor: 12.0 V

Current through 10.00 ohm resistor: 1.2 A

Voltage Drop across 40.0 ohm resistor: 8.0 V

Current through 40.0 ohm resistor: 0.2 A.

\begin{circuitikz}

\draw

(0,0) node[anchor=east]{$12.0V$}

   to [V, l_=$V_1=8V, I=0.3A$] (0,2)

   -- (2,2)

   to [R, l_=$R_1=40\Omega$] (2,0)

   to [R, l_=$R_2=10\Omega, V=4V, I=0.3A$] (0,0);

\end{circuitikz}

To learn more about Ohm's law refer to:

https://brainly.com/question/14296509

#SPJ1

Answer: Magnesium is mgp32

Explanation:

Answer:  Mg3P2 is the correct chemical formula.

the Copernican system supported by Galileo and the evidence that Galileo used to support this view is described bellow.  

The astronomical theory postulated by Nicolaus Copernicus and published in 1543 is termed as Copernican heliocentrism theory. The Earth and the other planets orbited the Sun in a circular orbit at constant speeds, modified by epicycles, in the model's position at the center of the universe.

Galileo's observations of four moons orbiting Jupiter, that provided confirmation for Copernicus' heliocentric hypothesis. He began charting the locations of the four "Medicean stars" every night on January 7, 1610. (later renamed the Galilean moons).

To know more about Copernican system visit

https://brainly.com/question/29608606

#SPj4

The thunder and lightning happen at the same time but sound waves move more slowly than light waves. So if it takes longer for the sound to reach you, therefore the storm is farther away.

A sound wave is described as the pattern of disturbance caused by the movement of energy traveling through a medium such as air, water or any other liquid or solid matter as it propagates away from the source of the sound.

Sound waves are divided into three categories and they :

Learn more about sound waves at:

https://brainly.com/question/1173066

#SPJ1

The total work done on the object as it moves from point A to B is 50 joule.

The energy an object has as a result of motion is known as kinetic energy in physics. It is described as the effort required to move a mass-determined body from rest to the indicated velocity.

The body holds onto the kinetic energy it acquired during its acceleration until its speed changes.

The total work done on the object as it moves from point A to B =

1/2× 5 kg × (6m/s)² - 1/2× 5 kg × (4 m/s)²

= 50 joule.

Learn more about kinetic energy here:

https://brainly.com/question/26472013

#SPJ1

30 kg of mass are raised 2.4 meters above the ground by a motor using 1300 J of energy. 1.841154 is the height.

Utilizing the formula Output Input, efficiency can be represented as a ratio. The total amount of productive work finished, excluding any waste and spoilage, is referred to as output or work output. By multiplying the ratio by 100, efficiency can also be expressed as a percentage.By dividing the energy obtained (useful energy or energy output) by the initial energy, energy efficiency is calculated (energy input).

Potential energy is a form of energy that is stored but is dependent on the relative positions of different system components. Stretching or compressing a spring increases its potential energy. Potential energy is stored energy. A stretched spring, a battery, and raising an object are a few examples. There are two main categories of energy: potential and kinetic.

To learn more about efficiency refer to :

https://brainly.com/question/1455245

#SPJ1

30 kg of mass are raised 2.4 meters above the ground by a motor using 1300 J of energy. 1.841154 is the height.

Utilizing the formula Output Input, efficiency can be represented as a ratio. The total amount of productive work finished, excluding any waste and spoilage, is referred to as output or work output. By multiplying the ratio by 100, efficiency can also be expressed as a percentage.By dividing the energy obtained (useful energy or energy output) by the initial energy, energy efficiency is calculated (energy input).

Potential energy is a form of energy that is stored but is dependent on the relative positions of different system components. Stretching or compressing a spring increases its potential energy. Potential energy is stored energy. A stretched spring, a battery, and raising an object are a few examples. There are two main categories of energy: potential and kinetic.

To learn more about Efficiency refer to :

brainly.com/question/1455245

#SPJ1

the electrical resistance of the fuse link is so low, it simply acts as a conductor during the normal circuit operation.

An item or category of material which  permits the movement of charge in one or more directions is termed to as a conductor. Metal-based materials are often used as electrical conductors.

To know more about resistance visit

https://brainly.com/question/11431009

#SPJ4

The Kinetic Energy generated by Jennifer while running at a speed of 0.8 m/sec is 20.48 Joules

The energy that an item has as a result of motion is known as kinetic energy. It is described as the effort required to move a mass-determined body from rest to the indicated velocity. The body keeps the kinetic energy it acquired throughout its acceleration unless its speed changes.

Kinetic energy, which may be seen in the movement of an item or subatomic particle, is the energy of motion. Kinetic energy is present in every particle and moving object. Examples of kinetic energy in action include a person walking, a baseball flying through the air, a piece of food falling from a table, and a charged particle in an electric field.

The energy an item has as a result of motion is known as kinetic energy. A force must be applied to an item in order to accelerate it. We must put forth effort in order to apply a force. After the job is finished, energy is transferred to the item, which then moves at a new, constant speed.

Mass of Jennifer is 64 kg .(m)

Velocity of Jennifer is 0.8 m/sec (v)

So the kinetic energy gererated/radiated = (1/2)*m *v²

= 0.5*64*0.8² = 20.48 joules.

To learn more about Kinetic Energy refer to  :

https://brainly.com/question/27395546

#SPJ1

Total amount bromine that will be vapourised by a power of 45 watt if heated for 22 mins is 307.78 gm.

The temperature at which a chemical transitions from a liquid to a gas is known as its boiling point. Technically speaking, it occurs when the applied pressure and the liquid's vapour pressure are equal (typically the atmospheric pressure).

When a liquid's vapour pressure reaches its surrounding pressure and the liquid turns into a vapour, this temperature is known as the substance's boiling point. Depending on the pressure in the surroundings, a liquid's boiling point can change.

A body or thermodynamic system can emit or absorb latent heat during a constant-temperature process, often a first-order phase transition. Latent heat is energy that is provided or removed in a concealed form to affect a substance's condition without changing its temperature.

We know

total energy will be conserved

therefore,

power*time = specific heat * mass

⇒ 45 * 22 * 60 = 193000 * mass

⇒mass = 0.308kg = 307.77  gm

Total amount bromine that will be vapourised by a power of 45 watt if heated for 22 mins is 307.78 gm.

To learn more about Heat and Power refer to  :

https://brainly.com/question/27849825

#SPJ1

Total amount bromine that will be vapourised by a power of 45 watt if heated for 22 mins is 307.78 gm.

The temperature at which a chemical transitions from a liquid to a gas is known as its boiling point. Technically speaking, it occurs when the applied pressure and the liquid's vapour pressure are equal (typically the atmospheric pressure).

When a liquid's vapour pressure reaches its surrounding pressure and the liquid turns into a vapour, this temperature is known as the substance's boiling point. Depending on the pressure in the surroundings, a liquid's boiling point can change.

A body or thermodynamic system can emit or absorb latent heat during a constant-temperature process, often a first-order phase transition. Latent heat is energy that is provided or removed in a concealed form to affect a substance's condition without changing its temperature.

We know

total energy will be conserved

therefore,

power*time = specific heat * mass

⇒ 45 * 22 * 60 = 193000 * mass

⇒mass = 0.308kg = 307.77  gm

Total amount bromine that will be vapourised by a power of 45 watt if heated for 22 mins is 307.78 gm.

To learn more about Heat and Power refer to  :

brainly.com/question/27849825

#SPJ1

The overall amperage of the circuit will decrease as the resistance in one branch increases.

This is because the current must pass through all branches of the circuit in order for the circuit to function, and with increased resistance in one branch, the total amount of current available to travel through the circuit is reduced.

The total amperage in a parallel circuit is determined by the total resistance of the circuit, which is calculated by adding up the resistance of each branch. As the resistance in one branch increases, the total resistance of the circuit also increases, which results in less current being able to pass through the circuit. This is because the higher the resistance, the less current that can pass through it, so increasing the resistance in a branch of the circuit will reduce the amount of current that can pass through the entire circuit.

Learn more about circuit:

https://brainly.com/question/26064065

#SPJ4

The formula for clockwise torque is nothing but a torque that rotates an object in clockwise direction which is a negative torque.

Torque is a measure of the turning effect of an applied force about a specific point or axis. It is calculated by multiplying the force applied to an object by the distance from the point of rotation to the point where the force is applied.

The greater the force or the longer the distance from the point of rotation, the greater the torque. The unit of torque is typically Newton-meters (N·m) in the International System of Units (SI) or pound-feet (lb·ft) in the imperial system. Torque is essential in various fields such as physics, mechanics, engineering and robotics.

To know more about torque:

https://brainly.com/question/30195094

#SPJ4

The acceleration of the object will decrease if the mass increases from 5kg to 6kg with a constant force.

Newton's second law of motion states that the acceleration of an object equals the net force acting on the object divided by the object’s mass.

This means that the mass and acceleration of an object are inversely related i.e. the greater the mass of an object, the less it will accelerate when a given force is applied.

For example, doubling the mass of an object results in only half as much acceleration for the same amount of force

According to this question, when the mass of the object increases from 5kg to 6kg, the acceleration will decrease.

Learn more about Newton's law at: https://brainly.com/question/29775827

#SPJ1

From the graph, the acceleration of the object would stay the same.

From the Newton's second law we can tell that the force that is acting on an object would be directly proportional to the acceleration. We also have to note that the object would accelerate when there is a net force that is acting on the object.

The question says that the mass of the object increases from 5 kg to 6kg and the net force on the object remains the same. The implication of this is that the acceleration would not also change.

Learn more about acceleration:https://brainly.com/question/12550364

#SPJ1

The phrase that sums up brainstorming concepts the best is It's a method for coming up with ideas that is only applied in groups.

The Department of Energy is delivering a clean energy future that creates good-paying, union jobs for communities in every pocket of the United States.l ideas and solutions. This method calls for a lengthy, rambunctious conversation in which each group member is urged should think aloud and offer as many suggestions as they can based on their varied knowledge.

First, brainstorming should prioritize quantity over quality. Yes, you read correctly: quantity rather than quality. The investigation phase of a development task begins with brainstorming, therefore it's critical to somehow be open to all possibilities and options.

To know more about Energy visit :

https://brainly.com/question/1932868

#SPJ4

The phrase that sums up brainstorming concepts the best is It's a method for coming up with ideas that is only applied in groups.

The Department of Energy is delivering a clean energy future that creates good-paying, union jobs for communities in every pocket of the United States.l ideas and solutions. This method calls for a lengthy, rambunctious conversation in which each group member is urged should think aloud and offer as many suggestions as they can based on their varied knowledge.

First, brainstorming should prioritize quantity over quality. Yes, you read correctly: quantity rather than quality. The investigation phase of a development task begins with brainstorming, therefore it's critical to somehow be open to all possibilities and options.

To know more about Energy visit :

brainly.com/question/1932868

#SPJ1

A displacement of 5.9 cm is required to raise a truck 17 cm using a jack with a mechanical advantage of 2.9.

Mechanical advantage is a measure of how efficiently a machine or device can multiply or amplify the force applied to it. It is defined as the ratio of the load being lifted or moved to the effort required to lift or move it.

A machine with a high mechanical advantage can lift or move heavy loads with relatively little effort, while a machine with a low mechanical advantage requires a much larger effort to lift or move the same load.

The mechanical advantage of a jack is the ratio of the load being lifted to the effort required to lift it. If a jack has a mechanical advantage of 2.9, it means that for every 2.9 units of effort applied, 1 unit of the load is lifted.

To find the displacement required to raise a truck 17 cm, we can use the formula:

Displacement = Load / Mechanical Advantage = 17 cm / 2.9 = 5.9 cm

So, a displacement of 5.9 cm is required to raise a truck 17 cm using a jack with a mechanical advantage of 2.9. This displacement would be the movement of the jack's handle or lever and represents the amount of effort required to lift the load.

To know more about mechanical advantage refer to:

brainly.com/question/16617083

#SPJ4

Answer:

1.45 m/s

Explanation:

This is a conservation of momentum problem (P = mv).  Total momentum before the collision must equal total momentum after the collision.  Momentum (P) is a vector, so you have to do vector addition to find the resultant momentum (R).

R² = ((72.3 kg)(2.58 m/s))² + ((60.5 kg)(0.794 m/s))²

R² = (186.53 kg·m/s)² + (48.04 kg·m/s)²

R =√34,795 + 2308 = [tex]\sqrt{37101}[/tex] = 192.6 kg·m/s

R = mv

v = R/m = (192.6 kg·m/s) / (72.3 kg + 60.5 kg) = 1.45 m/s

The temperature it records at 380 mmHg is -25° C

It is given that

Pressure at steam point = 680 mmHg

Pressure at ice point = 440 mmHg

Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer. Thermometers are calibrated in various temperature scales that historically have relied on various reference points and thermometric substances for definition

440 - 380/680 - 380 = 0 - x/100 - x

x = -25° C

Hence, temperature it records at 380 mmHg is -25° C

Learn more about Temperature here:

https://brainly.com/question/25677592

#SPJ1

The temperature it records at 380 mmHg is -25° C

A physical quantity known as temperature expresses the concepts of hotness and coldness in numerical form. With a thermometer, temperature is measured. Thermometers are calibrated in a variety of temperature scales that historically rely on different reference points and thermometric materials for defin

It is given that

Pressure at steam point = 680 mmHg

Pressure at ice point = 440 mmHg

440 - 380/680 - 380 = 0 - x/100 - x

x = -25° C

Hence, temperature it records at 380 mmHg is -25° C

Learn more about Temperature here:

brainly.com/question/25677592

#SPJ1

This question is asking about the motion of an object and the change in its direction.

To learn more about  the motion of an object and the change in its direction refer to:

https://brainly.com/question/27693284

#SPJ1

The sledder needs an initial speed of 10.64 m/s to just make it over the next hill.

To determine the initial speed required for the sledder to just make it over the next hill, we need to use the conservation of energy principle. The initial potential energy of the sledder at the top of the first hill is mgh1, where m is the mass of the sledder and g is the acceleration due to gravity.

As the sledder slides down the first hill, this potential energy is converted into kinetic energy. At the bottom of the first hill, the sledder's kinetic energy is 1/2mv², where v is the sledder's velocity.

To just make it over the next hill, the sledder's kinetic energy at the bottom of the first hill must be equal to the potential energy the sledder needs to reach the top of the second hill, which is [tex]mgh_2[/tex].

So the initial speed can be calculated by:

[tex]v_i[/tex] = √(2g[tex]h_2[/tex])

where [tex]h_2[/tex] = 5.9m, g = 9.8 m/s²

[tex]v_i[/tex] = √(29.85.9) = √(113.24) ≈ 10.64 m/s

To learn more about the speed at

https://brainly.com/question/29310934?referrer=searchResults

#SPJ4

The question is -

The sledder starts from the top of the frictionless hill and slides down into the valley: Suppose that h1 4.2 m and 5.9 Part A What initial speed Vi does the sledder need to just make it over the next hill?

The new velocity of the object after the event will be 7.99 m/s by using formula of Kinetic Energy.

The initial velocity of the object = 11.2 m

The given mass of the object = 50 kg

Energy transferred after collision of the two objects as Work = 1539 J

We need to find the final velocity of the object.

We will start by deriving the energy of the moving object.

Kinetic Energy = (mv²)/2

Kinetic Energy = (50 * 11.2 * 11.2)/2

Kinetic Energy = 3136 J

We now know the initial Kinetic Energy and the amount of energy that was transferred. Now, we need to find the resulting energy.

Final energy = initial kinetic energy - ending kinetic energy

Final energy = 3136 - 1539

Final energy = 1597 J

Now, Kinetic Energy = (mv²)/2

1597 =  (50 * v²)/2

3194 = 50 * v²

v² = 63.88

v = 7.99 m/s

Therefore, the new velocity after the event is 7.99 m/s

Learn more about Kinetic Energy here:

https://brainly.com/question/29552176

#SPJ4

Class 2 cables shall have a minimum voltage rating of 300 volts.

What is the voltage ?

The voltage is a measure of the difference in electric potential between two points in a circuit. It is measured in volts and is one of the basic parameters of electrical engineering. Voltage can be generated in a variety of ways, including through #SPJ1generators, batteries, and power supplies. When two points with different potentials are connected, current can flow from the higher potential point to the lower potential point. Voltage is also used to measure the potential difference between two points in a circuit, as well as to calculate the power in the circuit. In addition, voltage is used to control the flow of current in a circuit, by either increasing or decreasing the potential difference between the two points.

To learn more about voltage

https://brainly.com/question/1176850

#SPJ1