(a) Give an example of an irreversible process that occurs in nature.

Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

\(k = \frac{1}{2} m {v}^{2} \\ \)

m is the mass

v is the velocity

From the question we have

\(k = \frac{1}{2} \times 2.55 \times {3.81}^{2} \\ = 1.275 \times 14.5161 \\ = 18.5080275\)

We have the final answer as

Hope this helps you

A. The temperature of gas Y is 2 times the temperature of gas X.

The ideal gas equation is formulated as: PV = nRT.

In this equation we defined the parameters as follows;

number of moles of gas X = 1

volume of gas X = 1/4Y

Pressure of gas X = 2Y

temperature of X = ?

number of moles of gas Y = 2

volume of gas Y = 4X

Pressure of gas Y = ¹/₂X

temperature of Y = ?

R = PV/nT

PV/nT ( gas Y) =  PV/nT (gas X)

(¹/₂X . 4X)/(2 . TY) = (2Y . 1/4Y) / (1 . TX)

(X)/Ty = (Y/2Tx)

Ty(Y) = 2TX(X)

TY = 2TX

Thus, the temperature of gas Y is 2 times the temperature of gas X.

Learn more about temperature of ideal gas here: https://brainly.com/question/25290815

#SPJ1

Answer:

200,000 joules <3

Explanation:
just accept it

Answer:

\(2.00 * 10^5J\)

Explanation:

Make use of your conversion factors:

\(200KJ * \frac{1000J}{1kJ} = 200,000J = 2.00* 10 ^5J\)

Or alternatively make use of your scientific notation. \(kilo = 10^3\)

Therefore \(200kJ = 200*10^3J=2.0*10^2*10^3J = 2.0*10^5J\)

One must keep one car width of space to side of vehicle to avoid collision.

What is collision?

Collision is the sudden striking of two bodies that exerts forces on each other thus acelerating the objects in relatively very short time. One must maintain atleast one car width of space to side of vehicle to lower the risk of collision. If the space is lower than one car width than you should lower the speed of car to avoid collision.

One can also follow the two second disciple to avoid collision. According to this rule, the car should maintain two second safe distance behind any other vehicle .It acts as a safety buffer or defensive mechanism to avoid the risk of collision at all times at any speed. Also according to impulse momentum change theorem, the force on each object can be minimized by maintaing  more distance. As force and time are inversely proportional in collision.

Therefore, one car width distance is the safest minimum distance to avoid risks of collision .

Learn more about collision here:

https://brainly.com/question/14439547

#SPJ1

Electricity is defined as the flow of electrical current through a conductor.

A fundamental type of energy that is produced by the presence and movement of electric charge is electricity. The passage of electrons or other charged particles across a conductor, like a wire, is what defines the phenomena. It includes the creation, transmission, and use of electric energy, as well as the full field of electric phenomena.

Therefore,

Electricity is defined as the flow of electrical current through a conductor.

To know more about electricity, click here:

https://brainly.com/question/12791045

#SPJ4

In common usage, the mass of an object is often referred to as its weight, though these are in fact different concepts and quantities. ... In other words, an object with a mass of 1.0 kilogram weighs approximately 9.81 newtons on the surface of the Earth, which is its mass multiplied by the gravitational field strength.

The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton.

Answer:no

Explanation:

As weight is varies mass is constant

Answer:

A

Explanation:

When a body is positively charged, it implies that there is positive as well as negative charge in the body but the positive charge is more than negative charge.

Most of the materials that make up our world are composed of atoms, which are made up of a nucleus containing protons and neutrons surrounded by electrons. When an atom loses or gains electrons, it becomes positively or negatively charged, respectively. This is because the number of protons in an atom, which determines its atomic number and chemical properties, does not change.

When there are more protons than electrons, the atom becomes positively charged, and when there are more electrons than protons, it becomes negatively charged.Positive charge is the property of a material that has lost one or more electrons and therefore has more protons than electrons. Positive charges repel other positive charges, while negative charges attract positive charges.

To know more about neutrons visit:

https://brainly.com/question/31977312

#SPJ11

The frequency of the wave is 2.5 x 10⁷ kHz. and on the given wavelength, the electromagnetic wave is a microwave.

(a) The frequency of an electromagnetic wave can be calculated using the formula: frequency = speed of light / wavelength

where the speed of light is approximately 3 x 10⁸ meters per second.

Plugging in the given wavelength of 0.012 m, we get:

frequency = (3 x 10⁸ m/s) / 0.012 m

= 2.5 x 10¹⁰ Hz

To express the frequency in kHz, we can divide by 1000:

frequency = 2.5 x 10¹⁰ Hz / 1000

= 2.5 x 10⁷ kHz

Therefore, the frequency of the wave is 2.5 x 10⁷ kHz.

(b) Based on the given wavelength, the electromagnetic wave is a microwave. Microwaves have wavelengths ranging from about 1 millimeter to 1 meter, and are commonly used in communication technologies and cooking appliances.

To learn more about electromagnetic click here

brainly.com/question/17057080

#SPJ4

Answer:

V = 2.86 m/s

Explanation:

Given:

m = 1400 kg

p = 4000 kg·m/s

_________________

V- ?

Momentum:

p = m·V

Velocity:

V = p / m

V = 4000 / 1400 ≈ 2.86 m/s

The magnitude of the electric field at a position 1.2 m from the point charge is approximately 2.91 x 10^-6 N/C. The correct option is a.

To find the magnitude of the electric field at a distance of 1.2 m from a point charge, we can use Coulomb's Law. Coulomb's Law states that the magnitude of the electric field (E) created by a point charge (Q) at a distance (r) is given by the equation:

E = k * (Q / r^2)

where k is the electrostatic constant (k ≈ 9 x 10^9 N m^2/C^2).

Substituting the given values into the equation, we have:

E = (9 x 10^9 N m^2/C^2) * (4.2 x 10^-6 C) / (1.2 m)^2

Calculating this expression, we get:

E ≈ 2.91 x 10^-6 N/C

Therefore, the magnitude of the electric field at a position 1.2 m from the point charge is approximately 2.91 x 10^-6 N/C. Thus, option (a) is the correct answer.

For mor such questions on electric field

https://brainly.com/question/19878202

#SPJ8

Twisted-pair wiring is a category of cable that is comprised of four copper cables that have been wound around one another and encased in a plastic sheath.

Also with copper wires, twisted-pair cables were some of the first guided transmission medium. Twisted-pair cables are utilized in a variety of networking and communication applications today, including local area networks, digital subscriber lines, and phone lines.

The common copper cable known as twisted pair is used to link residential and commercial systems to the phone provider. Two copper pipe wires are wound around each other in a spirally to minimize electromagnetic induction or crosstalk between pairs of wires. Twisted pair connections require both wires for each connection.

To know more about Twisted-pair wiring visit:

https://brainly.com/question/14661230

#SPJ4

Answer:

In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant.

I don’t know how ellipse change tho sorry

Answer:

the third class lever makes our work easier as effort is located at the middle, load at first and fore is applied at the buttom. which helps in accelerating work.

hope it is helpful to you

Answer:

the answer is b. because liquid always bubble when boiling

Answer:

The geosphere consists of the solid Earth and the atmosphere consists of the gaseous components in the air. Thus, the answer is C.

Explanation:

Answer:

C

Explanation:

Answer:

I. 0 m/s

II. 20 m/s

III. Part BC

Explanation:

I. Determination of the initial velocity.

From the diagram given above,

The motion of the car starts from the origin. This implies that the car start from rest and as such, the initial velocity of the car is 0 m/s

II. Determination of the maximum velocity attained.

From the diagram given above, we can see clearly that the maximum velocity is 20 m/s.

III. Determination of the part of the graph that represents zero acceleration.

It important that we know the meaning of zero acceleration.

Zero acceleration simply means the car is not accelerating. This can only be true when the car is moving with a constant velocity.

From the graph given above, the car has a constant velocity between B and C.

Therefore, part BC illustrates zero acceleration.

The net vertical force on the caboose (C) is

∑ F[v, C] = F[n, C]  - (1.4 kg) g = 0

where F[n, C] is the magnitude of the normal force exerted by the track on the caboose; so we have

F[n, C] = (2.3 kg) g = 13.72 N

which means the coefficient of kinetic friction µ between the caboose and the track is

F[f, C] = 0.46 N = µ (13.72 N)   ⇒   µ = (0.46 N) / (13.72 N) ≈ 0.034

and presumably the coefficient is the same for the locomotive.

The net vertical force on the locomotive (L) is

∑ F[v, L] = F[n, L] - (2.3 kg) g = 0

where F[n, L] is the magnitude of the normal on the locomotive, so that

F[n, L] = (2.3 kg) g = 22.54 N

and so the locomotive is opposed by a frictional force with magnitude

F[f, L] = µ (22.54 N) ≈ 0.76 N

Taking the locomotive and caboose together, the net horizontal force on the system is

∑ F[h] ≈ - F[f, C] - F[f, L] + F[engine] = (2.3 kg + 1.4 kg) (3.1 m/s²)

Solve for F[engine] :

F[engine] ≈ (3.7 kg) (3.1 m/s²) + 0.46 N + 0.76 N ≈ 13 N

The statement “Increased levels of endorphins are released into the brain, boosting a person's mood” best explains how the regular form of exercise is beneficial to the brain.

Generally, when individuals exercise regularly, their bodies tend to release chemicals named endorphins. Some of the significant characteristics of endorphins are listed as follows:

Thus, we can conclude that regular exercise can boost a person’s mood by increasing the endorphin levels that are released into the brain. Hence, option A is the correct answer.

Learn more about endorphins here:

https://brainly.com/question/17691699

Thus, the total potential is then V_total = \(-1.2 * 10^9V\)

The potential at a point due to a charge is given by V = kQ/r, where k is Coulomb's constant (~\(9x10^9 Nm^2/C^2\)), Q is the charge, and r is the distance from the charge.

The total potential at the center of the square is the sum of the potentials due to each charge.

The distance of each charge to the center is half the diagonal of the square, which is \(\sqrt2 * side/2 = \sqrt2 * \sqrt4.5/2 = 1.5m.\)

The total potential is then V_total

= \(k * [(510^8/1.5) + (210^8/1.5) - (510^8/1.5) - (710^8/1.5)] = -2 * k * 10^8 / 1.5 \\= -1.2 x 10^9 V.\)

Thus, the total potential is then V_total = \(-1.2 * 10^9V\)

Read more about Coulomb's constant here:

https://brainly.com/question/26892767

#SPJ1

The size of the resultant force is 752.9 N, and its direction is 15.6° anticlockwise from the direction of travel.

What is Force?

In physics, force is a push or pull that can cause a change in motion or deformation of an object. It is a vector quantity, which means it has both magnitude (size) and direction.

Force is measured in units called Newtons (N) in the International System of Units (SI). One Newton is defined as the force required to give a mass of one kilogram an acceleration of one meter per second squared.

Magnitude: 400 N

Horizontal component: 400 cos(20°) = 376.9 N

Vertical component: 400 sin(20°) = 137.2 N

Force 2:

Magnitude: 350 N

Horizontal component: 350 cos(10°) = 342.0 N

Vertical component: 350 sin(10°) = 60.4 N

To find the resultant force, we can add the horizontal and vertical components separately:

Horizontal component: 376.9 N + 342.0 N = 718.9 N

Vertical component: 137.2 N + 60.4 N = 197.6 N

To find the magnitude of the resultant force, we can use the Pythagorean theorem:

Magnitude: √(718.9² + 197.6²) = 752.9 N

To find the direction of the resultant force, we can use trigonometry:

Direction: tan⁻¹(197.6/718.9) = 15.6°

Learn more about Force

https://brainly.com/question/12785175

#SPJ1

Answer:

Boyle's law states that for a fixed mass of a gas the volume of the gas is inversely proportional to the pressure at constant temperature.i.e

Pressure varies inversely as Volume at constant temperature. P*1/V

PV=K where k is a constant

A. The total force acting on the plane during take-off is 563,140 N. This is calculated by multiplying the thrust of each engine (281,570 N) by the number of engines (2).

An engine is an mechanical device that converts energy into useful work, typically in the form of rotational force. Engines are used in a variety of applications, from cars and airplanes to power plants and generators.

b. The acceleration the plane experiences during take-off can be calculated using Newton's Second Law of Motion, which states that Force = Mass x Acceleration. Therefore, the acceleration is 563,140 N / 369,000 kg = 1.53 m/s2.
c. To calculate the time it takes the plane to reach take-off speeds, we can use the kinematic equation for average acceleration, which states that the time taken is equal to the change in velocity (76 m/s) divided by the acceleration (1.53 m/s2). Therefore, the time taken is 49.8 seconds.
d. Using the kinematic equation for displacement, we can calculate the displacement the plane covers during take-off. This equation states that displacement is equal to the initial velocity (0 m/s) multiplied by the time taken (49.8 seconds) plus one-half of the acceleration (1.53 m/s2) multiplied by the time taken squared (49.8 seconds x 49.8 seconds). Therefore, the displacement is 3,814.7 m.

To learn more about engine
https://brainly.com/question/25870707
#SPJ1

Answer:

u = 14.55 m/s

Explanation:

Einstein's equation, E = mc^2, is one of the most famous equations in physics. It relates energy (E) to mass (m) and the speed of light (c). Here's a breakdown of what it means:

Energy (E): Energy and mass are interchangeable according to this equation. It implies that even objects at rest possess energy by virtue of their mass. The equation shows that mass can be converted into energy and vice versa.

Mass (m): The equation indicates that mass is a form of concentrated energy. The more mass an object has, the more energy it contains.

Speed of light (c): The speed of light, denoted by 'c,' is a fundamental constant in the universe. It is approximately 3 x 10^8 meters per second. The equation tells us that the speed of light squared is a huge number, which means even a small amount of mass can correspond to a large amount of energy.

In simple terms Einstein's equation, E = mc^2 states that mass and energy are interchangeable and that a small amount of mass can correspond to a significant amount of energy. This concept is crucial in understanding nuclear reactions, such as those in the Sun or in nuclear power plants, where tiny amounts of mass are converted into vast amounts of energy. The equation also underpins the theory of relativity and has profound implications for our understanding of the universe.

Learn more about Einstein's equation from

https://brainly.com/question/30404143

#SPJ11

Answer:

A proton has a positive charge :)

A neutron has no charge because it is neutral :)

Have a great day!!

Please rate and mark brainliest!!

A proton is positively charged while a neutron has no charge at all.