n people, each of whom is holding a water pistol, are standing on flat ground, such that the distances between each pair of people is distinct. when the sun rises, each person turns to the person

Answer:

1. B- kinetic to gravitational potential energy

2. A-gravitational to kinetic energy

Explanation:

When the train goes up the hill, the kinetic energy decreases (the speed decreased) due to the pull of gravity.

When the train goes down the hill, the speed increases (kinetic energy increases) and since the object is coming downwards the gravitational potential energy decreases

As the train went up the hill, Kinetic energy was converted into Gravitational potential energy, and As the train went down the hill, Gravitational potential energy was converted back into Kinetic energy. The correct option for both is B.

The conversion of energy refers to the process of changing energy from one form to another. Energy can be converted from one form to another, but it cannot be created or destroyed. This is known as the law of conservation of energy. Therefore, the total amount of energy in a closed system remains constant, even though it can be converted from one form to another.

Energy can be converted between different forms, such as mechanical, thermal, electrical, chemical, and nuclear energy. For example, when a car moves, the energy from the fuel is converted into mechanical energy to make the car move. When a light bulb is turned on, electrical energy is converted into light and heat energy. When food is digested, chemical energy is converted into mechanical and thermal energy.

The efficiency of energy conversion is an important factor in many processes, and the goal is often to maximize the amount of useful energy that can be obtained from a given amount of energy input. Energy conversion is an important concept in physics, engineering, and many other fields, as it helps us understand and analyze various physical processes and phenomena.

Here in the Question,

As the train went up the hill, Kinetic energy was converted into Gravitational potential energy. Because As the train goes up the hill, it gains height, and its potential energy increases. At the same time, its speed decreases due to the work done by gravity against the train's motion, causing a decrease in kinetic energy. Therefore, the kinetic energy of the train is converted into gravitational potential energy.

As the train went down the hill, Gravitational potential energy was converted back into Kinetic energy. Because As the train goes down the hill, its height decreases, and its potential energy decreases. At the same time, its speed increases due to the work done by gravity in the direction of the train's motion, causing an increase in kinetic energy. Therefore, the potential energy of the train is converted back into kinetic energy.

Therefore the correct answer to both questions is option B.

To learn about Newton's law of motion click:

brainly.com/question/29775827

#SPJ2

Answer:

your answer is 11

Explanation:

From the position-time graph, we have the following:

Distance covered Time

0 to 28 m 0 to 20 seconds

28m to 52 m 20 to 60 seconds

At 52 m 60 to 80 seconds

52 to -20m 80 to 110 seconds

Let's find the average speed for the entire trip.

To find the average speed, apply the formula:

Distance at line 1: 28 - 0 = 28m

Distance at line 2: 52 - 28 = 24 m

Distance at line 3: 0 m

Distance at line 4: -20m - 52 = -72 m

Thus, we have the equation:

Where:

d1 = 28 m

d2 = 24 m

d3 = 0 m

d4 = 72 m

t = 110 s

Now substitue values into the equation:

Therefore, the average speed for the trip is 4.4 m/s.

ANSWER:

Equation:

Substitution:

Calculation:

Answer:

Convergent boundaries. When two plates collide and one is pushed over the other, forming a mountain.

Answer:

circle

Explanation:

line = line graph, line chart

chart = radar chart, area chart and more

bar = bar graph

circle = ❌

cmiiw

Answer:

by obtaining the total mass of the dimes present:

d = 27.22 g / dozen       the density of dimes

M = n * d = 5 dozen * 27.22 g / dozen = 126.1 g

Answer:

It’s fun

Explanation:

If a person sitting on the outer edge of a merry-go-round travels at a greater speed than a person sitting near the center because the linear velocity is a product of the angular velocity and the perpendicular distance from the center .

It is defined as motion when the object is moving in a circle with a constant speed and its velocity is changing with every moment because of the change of direction but the speed of the object is constant in a uniform circular motion .

Because the linear velocity is a function of the angular velocity and the perpendicular distance from the center .

Thus, the person seated on the outside edge of a merry-go-round will move more quickly than a person seated near the center .

To learn more about uniform circular motion here, refer to the link given below ;

https://brainly.com/question/2285236

#SPJ2

Answer:

i think its b

Explanation:

its been awhile since I've worked on Newton's first law

According to the static equilibrium, the tension in the wire would be 24.62 N

Since all parts of the system are at rest (Ftotal = Ttotal = 0), we will be using static equilibrium. An object is said to be in a state of static equilibrium when all of the forces acting on it are in equilibrium with one another and the object is not moving in regard to the relative plane.

Thus, the tension in the wire would be:

                                           2Fy = m × g

Fy = (m × g) ÷ 2

Fy = (0.5 × 9.8) ÷ 2

Fy = 2.45 N

                                       Sinθ = 2 ÷ √(4+400)

F = Fy ÷ Sinθ

F = 2.45 ÷ 0.0995

F = 24.62 N

To learn more about static equilibrium, click here:

https://brainly.com/question/12804448

#SPJ4

The piece of office telephone equipment commonly used to assist with answering and routing phone calls into the office is called a Private Branch Exchange (PBX) system.

PBX systems are essential in managing incoming and outgoing calls in a professional and organized manner.

A PBX system can be hardware-based or software-based, offering flexibility in terms of installation and maintenance. It supports multiple phone lines, enabling businesses to have separate lines for different departments or employees. The system also provides features like call transferring, call forwarding, voicemail, and automated call routing, ensuring that all incoming calls are directed to the appropriate party efficiently.

Furthermore, PBX systems can be integrated with other office communication tools like email, instant messaging, and video conferencing, promoting seamless collaboration among employees. Overall, a PBX system significantly improves office communication and productivity by providing a centralized solution for managing and routing phone calls.

To know more about Private Branch Exchange (PBX) system, refer here:

https://brainly.com/question/32331726#

#SPJ11

Initial velocity U = 0

Final velocity V = 32.23 m/s

Explanation:

Given that a coin is dropped from the top of the Tower of Pisa, 53m above the ground.

What is the coin's initial velocity ?

Since the coin is dropped from the tower, the initial velocity U will be equal to zero.

Therefore, U = 0

But the final velocity V will be calculated by using the formula

V^2 = U^2 + 2gH

V^2 = 0 + 2 × 9.8 × 53

V^2 = 1038.8

V = sqrt ( 1038.8)

V = 32.23 m/s

sorry if did not help :(

Answer: The human eye and brain transform light into color. Allowing us to see them.

Explanation: Light receptors within the eye turn light into color. The color that is reflected off of an object, is what we see. Hope this helps.

The apparent colors of the objects we see causes due to reflection of the light which they absorb and emit.

Reflection is the change in direction of a wavefront which occurs at an interface present between the two different media so that the wavefront of the wave returns into the medium from which it has been originated. Common examples of reflection include the reflection of light, sound wave and water waves.

The color of an object is the wavelengths of light waves that it reflects. The reflection is determined by the arrangement of electrons in the atoms of that substance which will absorb and re-emit photons of particular energy levels according to the quantum laws.

Learn more about Reflection here:

https://brainly.com/question/30270479

#SPJ6

Answer:

17 - length of the fork

18 - number of turns

19 - material of the fork

Explanation:

it's a quarter and a half basically an amount of it it's actually the measurement of your actually doing and the size and the programs and you should basically do the l up and the l down just another kid information from it so this is what it goes from

During dump site operations, the tank baffles must have an opening of sufficient size to allow free movement of water at the bottom of the tank and movement of air at the top during rapid filling or unloading.

Land filling can be defined as a biological method that is typically adopted for the effective and efficient treatment of waste products (garbage).

Generally speaking, there are different types of land filling and these include the following:

In conclusion, the dumping waste landfill involves the dumping of solid waste products (garbage) into the landfill site through the use of trucks.

Read more on landfill here: https://brainly.com/question/12745559

#SPJ1

Complete Question:

During dump site operations, the _____ must have an opening of sufficient size to allow free movement of water at the bottom of the tank and movement of air at the top during rapid filling or unloading.

When classifying the 36 cells into their individual phases of mitosis ,Inter phase had the highest representation of cells .So option B is correct.

Pro phase is the first phase of mitosis, and it is when the chromosomes condense and become visible. The nuclear envelope breaks down, and the spindle fibers form.

Meta phase is the second phase of mitosis, and it is when the chromosomes line up along the spindle fibers. The chromosomes are then pulled apart by the spindle fibers.

Ana phase is the third phase of mitosis, and it is when the chromosomes are pulled to opposite poles of the cell. The cell then begins to divide.

Telophase is the final phase of mitosis, and it is when the cell divides into two daughter cells. The chromosomes uncoil, and the nuclear envelope reforms.Therefore option B is correct.

To learn more about chromosomes visit: https://brainly.com/question/11912112

#SPJ11

The dialogue in the underlined stanza on page 3 of Passage 1 reveals that the narrator in the poem, "The Old Man Dreams" by Oliver Wendell Holmes, longs for his youth and is unhappy with his current adult life.

In the stanza, the narrator expresses his desire to return to his youthful days and to experience the joy and carefreeness of being a young boy again. He is frustrated and annoyed with the angel who is questioning him and wishes to be rid of the burdens and responsibilities that come with age. He wants to forget the wisdom and achievements he has gained throughout his life and instead, live a life full of love and fame. This dialogue reveals that the narrator is not satisfied with his current life and yearns for the happiness and simplicity of his youth.

The dialogue in this stanza provides insight into the narrator's character and feelings. Through his words, we can see that he is discontent with his current life and feels burdened by the weight of his age. He longs for the happiness and carefreeness of his youth and wishes to forget the wisdom and achievements he has gained throughout his life. This reveals a sense of regret and longing for the past, which is a common theme in many literary works.

learn more about The Old Man Dreams

https://brainly.com/question/27352379

#SPJ11

Given what we know, we can confirm that as Halley's comet moves closer to the sun, we can expect its potential energy to be near its maximum.

We can conclude that its potential energy will increase as it comes closer to the sun, and will reach its maximum at the closest point to the sun. This is because the potential energy of an object is directly proportional to the force of gravity acting on that object. As Halley's comet approaches the sun, the sun's gravitational pull on the comet is stronger, and thus, its potential energy increases.

Therefore, given the relationship between gravity and potential energy, we can confirm that s Halley's comet moves closer to the sun, we can expect its potential energy to increase and be near its maximum.

To learn more about potential energy visit:

https://brainly.com/question/21288807?referrer=searchResults

To produce a magnetic field within a solenoid equal to the Earth's magnetic field, a current of approximately 7.66 amperes is required.

A solenoid is a long coil of wire that generates a magnetic field when an electric current passes through it. The magnetic field produced by a solenoid can be calculated using the formula:

B = μ₀ * n * I

where B is the magnetic field, μ₀ is the permeability of free space(4π * \(10^{-7\) T·m/A), n is the number of turns per unit length, and I is the current.

In this case, we are given that the solenoid is 25 cm long (0.25 m) and has 350 turns. We want the magnetic field within the solenoid to be equal to the Earth's magnetic field, which is \(15.0 * 10^{-5\) T.

Rearranging the formula, we can solve for the current:

I = B / (μ₀ * n)

Substituting the given values:

I = (\(15.0 * 10^{-5\) T) / (4π \(* 10^{-7\) T·m/A * 350 turns/m)

Calculating this expression gives us the current required:

I ≈ 7.66 amperes

Therefore, a current of approximately 7.66 amperes is needed to produce a magnetic field within the solenoid equal to the Earth's magnetic field.

Learn more about Solenoid

brainly.com/question/21842920

#SPJ11

Average velocity is defined as the displacement of an object divided by the time taken to cover that displacement. The magnitude of the average velocity of the car is 6.5 m/s.

Average velocity considers both the direction and magnitude of the displacement. It gives an overall measure of how fast and in what direction an object is moving on average over a given time interval.

Magnitude refers to the size or quantity of a physical quantity or vector without considering its direction. It represents the absolute value or numerical value of a quantity.

In physics, magnitude is used to describe the size or strength of a physical quantity, such as distance, velocity, acceleration, force, or any other measurable quantity. It disregards the direction and focuses solely on the numerical value or amount.

To calculate the magnitude of the average velocity of the car, we need to find the displacement and divide it by the time taken.

The displacement is the change in position from the initial point to the final point. In this case, the displacement is given by:

\(\Delta x = (8.0 m - 3.0 m) = 5.0 m\\\Delta y = (-7.0 m - 5.0 m) = -12.0 m\)

Now, we can calculate the magnitude of the displacement:

\(|\delta r| = \sqrt{(\delta x^2} + \sqrt {\delta y^2) }= \sqrt {((5.0 m)^2 + (-12.0 m)^2)} = 13.0 m\)

Next, we divide the magnitude of the displacement by the time taken:

Average velocity = \(|\Delta r| / \Delta t = 13.0 m / 2.0 s = 6.5 m/s\)

Therefore, the magnitude of the average velocity of the car is 6.5 m/s.

For more details regarding average velocity, visit:

https://brainly.com/question/28512079

#SPJ4

Explanation:

answer 689910

M x G x H

mass = 77

G= 9.8

Meter = 915 this is the height

77 x 9.8= 754.6

754.6 X 915 = 689910 J

Dean Potter is known for slacklining across a 915-metter deep ravine in Yosemite National Park with no safety gear. If his mass is 77 kg then he has the potential energy of  691163.55 Joules

As total mechanical energy is the sum of all the kinetic as well as potential energy stored in the system.

ME = KE + PE

As given in the problem Dean Potter is known for slacklining across a 915-meter deep ravine in Yosemite National Park with no safety gear. If his mass is 77 kg,

m =77 kg

h = 915 m

the total potential energy of the dean potter can be calculated withe the help of the formula of the potential energy

PE = mgh

PE = 77*9.81*915

PE = 691163.55 Joules

Thus, he would have the potential energy of  691163.55 Joules

Learn more about mechanical energy from here

brainly.com/question/12319302

#SPJ2

A projectile is launched at an angle of 33⁰ above the horizontal, then the projectile launched at an angle of 90 - 33 = 57⁰ will have the same range as the projectile launched at 33⁰. The correct option is (B) 57⁰.

In the absence of air resistance, a projectile launched at an angle of 33 above the horizontal will have the same range as a projectile launched at an angle of 57⁰.

The range of a projectile can be determined by using the range formula.

R = ((v^2 * sin(2θ))/g) Where

R is the range of the projectile,

v is the velocity of the projectile,

θ is the angle at which the projectile is launched, and

g is the acceleration due to gravity.

In the absence of air resistance,

the horizontal component of velocity of a projectile remains constant throughout the flight.

So, the range of a projectile depends only on its initial velocity and the angle at which it is launched.

If a projectile is launched at an angle θ,

the time of flight of the projectile can be calculated by using the following formula:

T = (2v * sin(θ))/g

The maximum height reached by the projectile is given by the formula:

H = (v^2 * sin^2(θ))/2gIf a projectile is launched at an angle θ, then the range of the projectile will be the same as the range of the projectile launched at an angle of (90 - θ).

So, if a projectile is launched at an angle of 33⁰ above the horizontal, then the projectile launched at an angle of 90 - 33 = 57⁰ will have the same range as the projectile launched at 33⁰.

Therefore, the correct option is (B) 57⁰.

To know more about air resistance visit:

https://brainly.com/question/19165683

#SPJ11

Answer: -3x+13

Explanation:

The slope of the line that passes through the point (3,4) is 1/3. Then , the intercept of the perpendicular line is 3 . Then, the equation of the line is y = 1/3x + 3.

Coordinates are numbers which describes the position of a shape, curve or line. The coordinates are written in terms of x and y axis values. A line or curve passing through certain points can be represented by an equation.

For a straight line the equation is y = mx + c

where m is the slope of the line and c be the intercept on y- axis.

For two perpendicular lines, the slope will be opposite inverse of each other.

The slope of the line y = -3x + 1 is -3. Then, the slope of the line which is perpendicular to this line is - (1/-3) = 1/3.

Then the equation of the line is y = 1/3 x + c.

given the line passes through the point (3,4).

Then,

4 = 1/3×3 + c

c = 3.

Therefore, the equation of the second line is y = 1/3 x + 3.

Find more on straight lines:

https://brainly.com/question/4695375

#SPJ5

Answer:

i need free points sry

Explanation:

Answer:

If the object is moving with an acceleration of +4 m/s/s (i.e., changing its velocity by 4 m/s per second), then the slope of the line will be +4 m/s/s.

hope this helps you

Answer:

sEE BELOW

Explanation:

Well.....because the numbers are 'astronomical'....meaning VERY, VERY , VERY LARGE

Explanation:

they are subatomic particles that interact by means of the strong force. as they are strong nuclear force its so powerful, it makes it extremely difficult to separate quarks.

hope this helps

have a great day

Quarks are elementary particles of matter. And they can be extracted in neutrino - induced dilepton events

QUARKS

A quark can be described as one of the fundamental units of matter. Under particle Physics, when two or more ionized quarks come together, they will form a composite particle called hadron.

Hadrons are particles that are affected by strong force. Examples of hadron are:

The quark model of hadrons helps to resolve many fundamental particle problems.

Apart from cosmic radiation, quarks can be extracted in neutrino - induced dilepton events with the use of hydrogen and deuterium exposure.

Learn more about Particle Physics here: https://brainly.com/question/4228625

Since the displacement is equal to zero, the velocity from 30 to 40s will also be zero.

Velocity is the distance travelled by a body in a specific direction per time taken. It is measured in meter per second. That is, m/s

Given that a car started its journey at point A. After 30 seconds, the car had reached point B. The car stops at point B for 10 seconds. Then, the car turned around and arrived at point A after 15 seconds. The car stopped at point A for 20 seconds. The car then went on his way and get to the point C after 10 seconds.

To find the velocity from 30 to 40s, we must realize that velocity can also be defined as;

Velocity = displacement / time

The displacement from point A to B and back to A is equal to zero.

Therefore, The velocity from 30 to 40s is also zero.

Learn more about Velocity here: https://brainly.com/question/25749514

#SPJ1

Answer:

14 km/h

Explanation:

The average speed of the cyclist could be calculated by the following formula:

average speed = total distance/total time

                         = 49/3.5

                         = 14 km/h

Hope this helps!

Answer:

Explanation:

The examples of electric force are

The charge in a bulb.

Electric circuits.

Static friction between cloth when rubbed by a dryer.

The shock that is felt after touching a doorknob.