A large semi-truck, with mass 31x crashes into a small sedan with mass x . If the semi-truck exerts a force F on the sedan, what force will the sedan exert on the semi-truck

Answer:

:P

Explanation:

the six kingdoms of life, as described in the taxonomic system, are distinct from one another in a variety of ways. each kingdom has its own unique characteristics that set it apart from the others.

the first kingdom is the kingdom animalia, which is composed of multicellular organisms that are heterotrophic and motile. animals are capable of movement and have specialized organs and tissues that allow them to interact with their environment.

the second kingdom is the kingdom plantae, which is composed of multicellular organisms that are autotrophic and sessile. plants are capable of photosynthesis and have specialized organs and tissues that allow them to interact with their environment.

the third kingdom is the kingdom fungi, which is composed of multicellular organisms that are heterotrophic and sessile. fungi are capable of absorbing nutrients from their environment and have specialized organs and tissues that allow them to interact with their environment.

the fourth kingdom is the kingdom protista, which is composed of unicellular organisms that are either autotrophic or heterotrophic and motile. protists are capable of movement and have specialized organelles that allow them to interact with their environment.

the fifth kingdom is the kingdom monera, which is composed of unicellular organisms that are autotrophic and motile. monerans are capable of movement and have specialized organelles that allow them to interact with their environment.

the sixth kingdom is the kingdom archaea, which is composed of unicellular organisms that are autotrophic and motile. archaeans are capable of movement and have specialized organelles that allow them to interact with their environment.

in summary, the six kingdoms of life are distinct from one another in a variety of ways. each kingdom has its own unique characteristics that set it apart from the others. animals are multicellular and heterotrophic, plants are multicellular and autotrophic, fungi are multicellular and heterotrophic, protists are unicellular and either autotrophic or heterotrophic, monerans are unicellular and autotrophic, and archaeans are unicellular and autotrophic.

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The velocity in which this second particle finds itself at a distance r2 = 25,0 cm from point P is 17.22 m/s.

The electric force between the two particles is calculated from Coulomb's law of electrostatic force.

F = kq₁q₂/r²

where;

F = (9 x 10⁹ x 3.10 x 10⁻⁶ x 3.10 x 10⁻⁶) / (0.09 m)²

F = 10.68 N

The velocity in which this second particle finds itself at a distance r2 = 25,0 cm from point P is calculated by applying the principle of conservation of energy.

W = ΔK.E

where;

Fr = ¹/₂mv²

2Fr = mv²

v² = 2Fr/m

v = √(2Fr/m)

v = √(2 x 10.68 x 0.25 / 1.8 x 10⁻²)

v = 17.22 m/s

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Increased driving can lead to higher vehicle maintenance and repair expenses, increased fuel costs, potential increases in auto insurance premiums, and additional parking fees, all of which should be considered when estimating the overall impact on your expenses.

The expenses that are likely to change based on how much you drive can be broadly categorized into two main areas: vehicle-related expenses and fuel-related expenses.

1. Vehicle-related expenses: The more you drive, the more wear and tear your vehicle will experience, leading to increased maintenance and repair costs. Regular oil changes, tire replacements, brake pad replacements, and other routine maintenance tasks will be required more frequently.

2. Fuel-related expenses: It's intuitive that the more you drive, the more fuel you'll consume, resulting in higher fuel expenses. Fuel prices can vary, but regardless of fluctuations, increased mileage will directly impact your fuel budget. Fuel-efficient vehicles may mitigate some of these costs, but the overall impact on your expenses will still be noticeable.

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Answer:

Critical angle is a angle of incidence, for which refraction is 90 degree, this is a least angle of incidence at which total reflection takes place, please mark me Brainliest

The quantity that describes the gravitational force between two objects is as follows: the product of the masses of the two objects divided by the square of the distance between them (option C).

Gravitational force is a very long-range, but relatively weak fundamental force of attraction that acts between all particles that have mass; believed to be mediated by gravitons.

It is called the gravitational force attraction because it always tries to pull masses together, it never pushes them apart.

The gravitational force of an object can be calculated using the following formula:

F = Gm1m2/r²

Where;

Therefore, the product of the masses divided by the square of the distance is how gravitational force is calculated.

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The hypothesis is, the thickness of transparent glass affects how much light passes through. Option A is correct.

A hypothesis is a proposed explanation or prediction for a phenomenon or observation that is based on limited evidence and subject to testing and validation through further investigation. It is an essential part of the scientific method, which involves developing a research question, making observations, and forming a hypothesis to explain the observed phenomenon.

The hypothesis should be testable, falsifiable, and based on evidence and reasoning. Testing the hypothesis involves designing experiments and collecting data, which can either support or refute the hypothesis. If the hypothesis is supported by the data, it may be further developed into a scientific theory, which is a widely accepted explanation of a natural phenomenon that has been extensively tested and validated. Option A is correct.

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Answer:

Conduction

Explanation:

Conduction is when heat or electricity is transmitted throughout a substance.

The energy transfer taking place through our body is called conduction. Our body is conductive and which make the electrical shock.

There are three different modes of energy transfer namely, conduction, convection and radiation. Conduction is the energy transfer mode on solids and convection is taking place in gases and liquids.

Radiation is the energy transfer mode through vacuum. In conduction the energy transfers easily through the chain of  closely packed molecules. Whereas in convection, the molecule which obtained an energy travels across the space and transfers to other molecules.

Our body transfers energy inside through conduction process. Skin is very conductive and the electrons from the wire can be passed through our body that's why we gets electrically shocked.

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The closest distance and angle to this question are 1540.35 kilometers and 38.4 ° S. (depending on how you rounded).

There is a common misconception that distance & displacement are simply two different terms for the same thing. But separation separates the concepts of distance and displacement. The total distance covered by an object is always larger than the movement between those two sites, even if it changes direction throughout the course of its voyage.

The smallest (straight line) length between a body's starting position and its final location—represented by an arrow pointing from starting spot to final position—is referred to as a brain's displacement when it moves through one position to another.

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Answer:

May be egg shaped

Has no new stars being formed.

Has almost no gas or dust between stars.

Explanation:

Elliptical galaxy is the collection of many stars which are bounded together gravitationally, which is smooth and ellipsoidal and shape and the appearance is featureless.

Elliptical galaxy is ovoid or spherical masses of stars.

It is found in galaxy clusters and compact galaxies.

It has no gas or dust between stars which result in low rates of star formation.

It is formed When two spirals collide, they lose their familiar shape, morphing into the less-structured elliptical galaxies.

Elliptical galaxy is made of old stars and have no gas and dust.

An example is elliptical galaxy m60 which shines brightly and is egg shaped.

The total displacement in the x-direction is calculated as

The amount of force required is (V) is v(t) = at.

What is velocity?

The speed of something in a given direction. Velocity is the directional speed of to an object in motion as an indication of its rate of the  change in position as in observed from a particular to frame of reference and it's as measured by a particularly standard of time.

Sol-As per the newton's first law of motion.

Vt= vo+at

Here,

velocity at time t is v(t).

Initial velocity is vo.

Acceleration is a and the time is t.

The initial velocity is zero. Put the 0 for vo in above equation.

v(t) = 0+at

v(t)= at

Thus, the acceleration of a falling body (a), the time it takes to fall (t), and its instantaneous velocity when it hits the ground.

(V) is v(t) = at.

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Answer:

The speed of the plane after it decelerates is 50 m/s

Explanation:

Motion with Constant Acceleration

When an object gains or losses velocity in time, it acquires acceleration. If this value is constant, we can calculate the final velocity (or speed in scalar terms) as:

\(v_f=v_o+at\)

Where vf is the final speed, vo is the initial speed, a is the constant acceleration, and t is the time the acceleration is acting.

The plane is originally traveling at vo=80 m/s and it slows down at a constant rate of \(a=-0.25\ m/s^2\) during t=120 seconds. Note we have added the negative sign to the acceleration because the plane is slowing down, i.e., the acceleration is against the speed.

Thus, the final speed is:

\(v_f=80-0.25*120\)

\(v_f=80-30=50\)

\(v_f = 50\ m/s\)

The speed of the plane after it decelerates is 50 m/s

Answer:

Another option for observing nature-nurture in humans involves twin studies. There are two types of twins: monozygotic (MZ) and dizygotic (DZ). Monozygotic twins, also called “identical” twins, result from a single zygote (fertilized egg) and have the same DNA. They are essentially clones.

Answer:

Another option for observing nature-nurture in humans involves twin studies. There are two types of twins: monozygotic (MZ) and dizygotic (DZ). Monozygotic twins, also called “identical” twins, result from a single zygote (fertilized egg) and have the same DNA. They are essentially clones.

Explanation:

Answer:

i hop this help you :)

Explanation:

How Does Radiant Energy Work? Radiant energy moves from one place to another in the form of electromagnetic waves or electromagnetic radiation. At its most elementary level, electromagnetic waves are made up of photons, which have no mass and move at the speed of light.

Answer:

Explanation:Radiant energy is used for radiant heating. It can be generated electrically by infrared lamps, or can be absorbed from sunlight and used to heat water. The heat energy is emitted from a warm element (floor, wall, overhead panel)

Answer:

I belive it is the thickness of the wire

Explanation:

There are no other answers and I searched it up and it seems that it is the thickness of the wire.

A current is induced in a wire by moving the wire through a magnetic field. A factor that affects the direction of the current is  the direction in which the wire moves.

Magnetic field is the region of space where an object experiences the magnetic force towards a magnetic material.

The direction of flow of electric current in a current carrying conductor wire depends on many factors. The direction of the wire moves in or out and current will flow towards the direction of a given wire.

Hence, a factor that affects the direction of the current is in the direction in which the wire moves.

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Answer:

B to provide traction so that slipping does not occur

Explanation:

To increase friction between two surfaces, allow the objects to slide past each other thereby  force that is called friction.

Friction is  a type of force acting on an object to hinder its motion . It is negative by direction, since this force, hinder the motion of the object. Friction is also known as an opposing force because it always acts in the opposite direction of a moving or attempting to move body.

The virtue of friction causes a moving body to slow down. Friction is useful at times because it prevents car tires from skidding on the road and also allows us to walk on the pavement without slipping.

To increase friction , make an uneven, rugged, or sticky point of contact. When two or more bodies slide or rub against each other, three things can happen: small irregularities, nooks and crannies on the surfaces can catch on each other.

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Answer:

A. The brakes used a coil system to convert the kinetic energy into potential energy stored in the brakes

Explanation:

Based on the law of conservation of energy, the brakes used a coil system to convert the kinetic energy into potential energy stored in the brakes.

The law of conservation of energy states that energy is neither created nor destroyed in a system but it is transformed from one form to another.

As the airplane slows down, the kinetic energy which is presented in the motion of the plane is gradually converted to potential energy.

The potential energy is the energy due to the position of a body.

The initial horizontal velocity of the football if a player kicks a football from ground level with a velocity of 27/ms at an angle of 30 degrees above the horizontal is 23.662 m/s.

To find the initial horizontal velocity (Vx) of the football, you can use the horizontal component of the velocity vector. The horizontal component of velocity is found by multiplying the velocity by the cosine of the angle of launch.

\(V_{x}\) = V × cos(angle)

where V is the initial velocity, the angle is the angle of launch (in this case, 30 degrees), and cos is the cosine function.

So, in this case, the initial horizontal velocity of the football would be:

\(V_{x}\) = 27 m/s × cos(30)

\(V_{x}\) = 27 m/s × 0.866

\(V_{x}\) = 23.662 m/s

So the initial horizontal velocity of the football, which moves in the x-direction, is approximately 23.662 m/s.

This means the football will move 23.662 m/s in x direction initially and if no air resistance acts upon the football, it will move at the same velocity in x direction throughout the motion.

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Answer:

The period of spin of the compact disc is approximately 0.033 seconds.

Explanation:

From Rotation Kinematics we must remember that a period of spin is the time needed by the compact disk to make one revolution. Period can be found by using the following equation:

\(T = \frac{2\pi}{\omega}\) (Eq. 1)

Where:

\(T\) - Period, measured in seconds.

\(\omega\) - Angular velocity, measured in radians per second.

At first we need to convert angular velocity into radians per second:

\(\omega = 1800\frac{rev}{min}\times \frac{1}{60}\,\frac{1}{sec}\times 2\pi\,\frac{rad}{rev}\)

\(\omega \approx 188.496\,\frac{rad}{s}\)

If we know that \(\omega \approx 188.496\,\frac{rad}{s}\), then the period of spin of the compact disc is:

\(T = \frac{2\pi}{188.496\,\frac{rad}{s} }\)

\(T \approx 0.033\,s\)

The period of spin of the compact disc is approximately 0.033 seconds.

According to the question,

then,

→ \(1800 \ rpm = (\frac{1800}{60} )rev/s\)

                  \(= 30 \ rev/s\)

hence,

The time period of spin will be:

= \(\frac{1}{30}\)

= \(0.03 \ seconds\)

Thus the approach above is right.

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The correct statements are: Emission spectra have dark lines, Electrons will move to higher orbits when an atom absorbs enough energy, The size of an electron's orbit depends on its energy, Low-density hot gases produce emission spectra, and Hot solids emit continuous spectra.

An emission spectrum is produced when atoms in a sample emit light of certain wavelengths as they return from excited states to lower energy states. These spectra show bright lines corresponding to the emitted wavelengths but also have dark lines or gaps where no light is emitted.

When a solid object is heated, it emits light at all wavelengths, resulting in a continuous spectrum. This is because the solid contains many atoms or molecules that are vibrating and moving, and their energies and motions result in a continuous range of emitted wavelengths.

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1. The purpose of the investigation was to study the relationship between the Sun, Earth, and Moon.

2. The bright part of the moon appears bright due to the reflection of sunlight.

Introduction: The purpose of the investigation was to study the relationship between the Sun, Earth, and Moon. By creating models of the three celestial bodies, we aimed to understand how their movements and positions influence the phases of the moon and eclipses.The bright part of the moon appears bright due to the reflection of sunlight. As sunlight hits the moon's surface, it bounces back and reflects into space. This reflected light is what we see as the bright part of the moon.

Experimental Methods: To create our model, we used a lamp to represent the Sun, a ball to represent the Earth, and a smaller ball to represent the Moon. We also used a ruler, tape, and a protractor to measure distances and angles.We created our model by placing the lamp at one end of a table, the Earth in the middle, and the Moon at the other end. We attached the Moon to a string and moved it around the Earth to simulate the Moon's orbit around the Earth.

Develop a Model: Our model consists of a lamp, a ball, and a smaller ball on a string. The lamp represents the Sun, the ball represents the Earth, and the smaller ball on the string represents the Moon. As the Moon moves around the Earth, it goes through phases, from a new moon to a full moon and back again.We used diagrams and pictures to label the components of our model and describe causal accounts for the phases of the moon and eclipses.

Use a Model: When the Moon is full, it is in a direct line with the Earth and the Sun. Using our model, we can predict that the Moon would be directly opposite the Sun in the sky during a full moon. A lunar eclipse does not occur every month when there is a full moon because the Moon's orbit around the Earth is tilted at an angle of about 5 degrees to the Earth's orbit around the Sun. Therefore, the Moon is not always in a direct line with the Earth and the Sun during a full moon, which is necessary for a lunar eclipse to occur.

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Thermodynamics is a macroscopic science. Thermodynamics is the study of the relations between heat, work, temperature, and energy.

Thermodynamics  is a branch that deals with heat, work and temperature, and their relation to energy, radiation and physical properties of matter. Thermodynamics is a macroscopic science which means dealing with substances in bulk or with large amount.

Thermodynamics is classified into the following four branches:

1- Classical Thermodynamics

2- Statistical Thermodynamics

3- Chemical Thermodynamics

4- Equilibrium Thermodynamics

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The answers are 1) The value of R2 is not relevant as it implies a downward force on the plank, 2) The reactions at C and D are 66.3 N and 90 N, respectively, and 3) The vertical force at B to lift the plank clear of D is 686.4 N. The reaction at C is zero, and the reaction at D is 61.4 kg.

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Given data

*The given height is h = 100 m

*The value of the acceleration due to gravity is g = 9.8 m/s^2

*The initial speed of an object is u = 0 m/s

The formula for the time taken by the object to reach the ground is given by the equation of motion as

Substitute the known values in the above expression as

Hence, the time taken by the object to reach the ground is t = 4.52 s

The scale will read a weight of 463.5 N during the elevator's acceleration.

To calculate the weight that the scale reads during the elevator's acceleration, we need to consider the forces acting on the child.

Weight is a force caused by the gravitational pull of the Earth on an object. It is given by the formula:

Weight = mass × gravitational acceleration

The mass of the child is given as 45.0 kg. The gravitational acceleration is approximately 9.8 m/s² on the surface of the Earth.

However, during the elevator's acceleration, there will be an additional force acting on the child due to the acceleration. This force is given by Newton's second law:

Force = mass × acceleration

In this case, the acceleration is the difference in velocity divided by the time taken, which is (3.0 m/s - 1.0 m/s) / 4.00 s = 0.5 m/s².

So, the additional force acting on the child during the acceleration is:

Additional Force = mass × acceleration = 45.0 kg × 0.5 m/s² = 22.5 N

Now, we can calculate the total force acting on the child, which includes both the weight and the additional force:

Total Force = Weight + Additional Force

Since the weight is equal to mass × gravitational acceleration, we can rewrite the equation as:

Total Force = mass × gravitational acceleration + Additional Force

Total Force = (45.0 kg × 9.8 m/s²) + 22.5 N

Total Force = 441 N + 22.5 N

Total Force = 463.5 N

Therefore, the scale will read a weight of 463.5 N during the elevator's acceleration.

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Answer:

I HOPE THIS IS CORRECT

Explanation:

It is heated from 20°C to 80°C. We need to find the heat absorbed. It can be given by the formula as follows : So, 1386 J of heat is absorbed.

Explanation:

There are 1024/2 = 512 SHEETS   (each is numbered on two sides)

  3 inches * 25.4 mm/inch / 512 sheet = .1488 mm per sheet

The number that points the region where Guam is on the map is Arrow 2.

Guam is located in the western pacific ocean away from Hawaii and Philippines. It is an autonomous protectorate of the United states of America under the organic act of Guam passed by congress and approved in 1950, August 1st by the president. Guam is also an island.

On the map, the arrow that points to a region of North Guinea and east of the Philippines, which is arrow 2 is the region that Guam occupies.

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Answer:

Answer is B: 2

Explanation:

Answer:

mine is 9.75 so take that as you will

Explanation: