Which image depicts projectile motion?

Final answer:

A school bus takes longer to stop than a small car because of Newton's Second Law of Motion; it has greater mass and momentum, needing more force and time for deceleration.

Explanation:

The question you've asked relates to why a school bus full of kids takes longer to stop than a small car with a single passenger. This is an example of Newton's Second Law of Motion, which states that force equals mass times acceleration (F=ma). In this case, the school bus has a much larger mass compared to the small car. When brakes are applied, both the school bus and the car exert a force to stop, but because of the larger mass, the force applied by the brakes must be greater for the bus to achieve the same acceleration (or deceleration in this case) as the car. Additionally, the momentum of the bus, which is the product of mass and velocity, is greater, so it requires more time to bring the bus to a stop compared to the car with less momentum.

Answer: It maintains proper voltage in a circuit.

.Explanation:

Reservoir capacitors are used in power supplies where they smooth the output of a full or half wave rectifier. They can also be used in charge pump circuits as the energy storage element in the generation of higher voltages than the input voltage.

Final answer:

A capacitor is a device used to store electric charge and energy. It can filter electrical fluctuations and supply power, which makes it essential in various electronic devices and circuits.

Explanation:

Purpose of a Capacitor

The primary purpose of a capacitor is to store electric charge and electrical energy. Capacitors are used in various applications, such as filtering static from radio reception, supplying power to circuits, like in pacemakers and defibrillators, and in everyday electronics like cell phones and computers. They consist of two conducting parts, known as plates, that are placed close to each other but are not touching; usually, an insulator or dielectric is between them. When connected to a battery, a capacitor charges up by having equal but opposite charges on its plates, effectively storing energy that can be released later. An excellent analogy for understanding a capacitor's filtering ability is that of a water bucket, which can provide a steady flow of water for watering a garden, despite intermittent supply through a hose, analogous to how capacitors filter out fluctuations in electrical current.

When combined with other circuit elements, capacitors can also act as filters to allow some electrical signals to pass while blocking others. They are thus considered one of the fundamental components in electrical circuits.

Answer:

A

Explanation:

The region with the least population growth will have the shallowest line.  That would be Europe.  Between 2000 and 2020, the line is basically flat, while the others are rising.

Answer is A.

Answer:

A is the answer

Explanation:

<3

The term best completing the types of credits is 'Loan'. Credit is when a buyer obtains something but pays later or over time. The government can control financial institutions by passing laws for them to follow.

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Answer:

A sound wave speeds up as it passes from air to water. A light wave slows down as it passes from air to water.

Explanation:

Sound waves are the type of mechanical waves, which are formed due to the vibrations of the particles of the medium. The sound waves are longitudinal in which particle moves opposite to the energy transport.

The characteristic of sound waves include:

The wavelength, period, frequency, and amplitude are the characteristics of the sound waves.

The sound waves will travel faster in the water as compared to air because the molecules in the water are tightly packed which resulted in the transmission of sound waves faster.

Thus, the sound waves will travel in the water faster than the air because water is denser, and sound waves travel faster.

To know more about sound waves, refer to the following link:

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Answer:

Sea-floor spreading occurs in the oceanic ridges. In there, volcanic activity, together with the gradual movement of the bottom, form new oceanic crust. This allows a better understanding of the continental drift explained by the theory of plate tectonics.

The greatest evidence for Sea-floor spreading is the oceanic trenches, the oceanic ridges, the magma protruding to the surface and the new seafloor.

In previous theories,  continents were assumed to be transported across the sea. Harry Hess, in the 1960s, proposed the idea that the seabed itself moves  as it expands from a central point. The theory is now accepted, and the phenomenon is thought to be caused by convection currents in the upper layer of the mantle.

Answer:

magnetic reversal

The International System of Units (SI) is used in almost every country in the world (except Burma, Liberia and the United States).

This system was created in 1960 by the 11th General Conference of Weights and Measures in France and is made up of seven basic units:  

-Ampere (electric current)

-Kelvin (temperature)

-Second (time)

-Meter (length)

-Kilogram (mass)

-Candela (luminous intensity)

-Mol (amount of substance) *added to the system in 1971

Plus an unlimited number of derived units from the main ones.

Answer:

the systeme international

Explanation:

Answer:

When light is scattered, It reflects in many different directions, think about sunlight reflecting off the clouds.

Answer:

The correct answer is it is redirected as it passes through a medium.

Explanation:

 When light is scattered it means that it passes through a medium, deviates from its path and is redirected. An example of this is sunlight when it passes through clouds.

The particles and molecules that pass through the clouds are called dispersers.

There is a type of selective scattering where such particles have a tendency to scatter a specific type of light wave. While another type of scattering is who makes the clouds white because the light is scattered when it enters the water droplets that form the clouds, letting our eyes perceive the clouds as white.

polar covalent, it is what happens when there is unequal bond between two atoms, where one has a slightly negative charge and one has a slightly positive charge.

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Answer:

Voltage

Explanation:

In a parallel circuit, electric current has more than one path to flow and the loads are parallel to each other.When one of the loads( bulb) is malfunctioning, current still flows in the other path to serve the remaining loads.The voltage is the same in every part of a parallel circuit.This is because the difference in potential at the start of the circuit equals that at the end of the circuit.

The image produced by the lens would be where the two lines cross, which would be Z.

Answer:

Z

Explanation:

When the two refracted rays meets actually or virtually, then the image is formed at the intersection point.

here two refracted rays actually meet at Z, so the image of the tree is formed at Z.

In image formed is real as the two refracted rays meet actually.

The image is inverted and large in size.

The object will not move, since both forces have the same magnitude although not the same direction.

This is due to Newton’s first law of motion, that estates:

If a body is in equilibrium the sum of all the forces acting on it is equal to zero:

[tex]F_{total}=29N-29N=0[/tex]  

According to this law, an object in rest can be in equilibrium (net force equals to zero), and a moving object can also be in equilibrium, as long as it keeps a constant velocity.

Answer:

inertia

Explanation:

The correct answer is B) Newton's law of inertia. The forward motion of the boy's body after the wagon stops illustrates Newton's law of inertia, which states that an object in motion stays in motion unless acted upon by an external force. This example shows how inertia works in everyday situations.

The forward movement of the boy's body as the wagon stops illustrates Newton's first law, often called the law of inertia. According to this law, an object in motion will remain in motion unless acted upon by an external force. In this case, the boy's body continues moving forward even though the wagon has stopped, demonstrating his inertia.

Correct Question : content loaded

A little boy is being pushed in a wagon by his mother. Suddenly, the little boy's mother stops to watch for cars before she crosses the street. The little boy's body continues to move forward in the stopped wagon until he tumbles out. The forward movement of the boy's body shows – *

A) Newton's law of gravity.

B) Newton's law of inertia.

C) Newton's law of force and acceleration.

D) Newton's law of action-reaction.

Answer:

Kinetic

Explanation:

Because Kinetic is an energy in motion, while on the other hand Potential is stored up energy. So if the steam is moving up (or the air is moving upwards) then it is Kinetic.

Answer:

So it would be kinetic cos, it's in movement

Explanation:

potential energy is like sitting at the top of a hill on a roller coaster, once the roller coaster drops from the hill, it's kinetic energy cos, it's using the potential energy to move itself.....ya know?

Answer:

The answer is Crest just learned it in science.

Explanation:

In a transverse wave, the particles of the medium move perpendicularly to the direction of the wave. The highest point of such a wave is referred to as the crest.

In a transverse wave, particles of the medium move in a direction perpendicular to the direction of the wave. The highest point of a transverse wave is called the crest. It's opposite, the lowest point, is called the trough. For example, if we were to observe a wave in the ocean, the crest would be the highest point the water reaches and the trough would be the lowest point.

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Answer:

A

Explanation:

Snell's law states:

n₁ sin θ₁ = n₂ sin θ₂

where n is the index of refraction and θ is the angle of incidence (relative to the normal).

The index of refraction of air is approximately 1.  So:

1 sin 30° = 1.52 sin θ

θ ≈ 19°

The angle of refracted ray with respect to normal is 19°.

It states that the ratio of sine of angle of incidence and angle of refraction is equal to the refractive index of second medium to the first medium.

sini/sinr =n₂/ n₁

Given the angle of incidence i = 30 degrees, refractive index of glass n₂=1.52, refractive index of air n₁ =1, then , angle of refraction is

1 x sin 30° = 1.52 x sin r

r ≈ 19°

Thus, the angle of refracted ray with respect to normal is 19°.

Learn more about Snell's law.

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Answer:

C) Acceleration 1 - constant acceleration. Acceleration 2 - varied acceleration.

Explanation:

In a velocity-time graph, the acceleration corresponds to the slope of the curve.

In fact, acceleration is defined as the ratio between the change in velocity and the time interval:

[tex]a=\frac{\Delta v}{\Delta t}[/tex]

However, we see that in a velocity-time graph, [tex]\Delta v[/tex] corresponds to the increment in the y-variable ([tex]\Delta y[/tex]), while [tex]\Delta t[/tex] corresponds to the increment in the x-variable ([tex]\Delta x[/tex]). Therefore, acceleration can also be written as

[tex]a=\frac{\Delta y}{\Delta x}[/tex]

which is exactly the definition of slope of the curve.

Now we notice that:

- For object 1, the slope is constant: this means that the acceleration is constant

- For object 2, the slope varies: this means that the acceleration varies as well

Answer:C) Acceleration 1 - constant acceleration. Acceleration 2 - varied acceleration.

Explanation:

The lines on the graph are best described by the following: Acceleration 1 - constant acceleration. Acceleration 2 - varied acceleration. Acceleration 1 DOES show positive acceleration, but since the slope of the line does not vary, the acceleration is constant. Acceleration B has a varied slope, and therefore, a varied acceleration. It does happen to be positive and negative. For zero acceleration, the slope slope would be zero and the line horizontal.

Answer:

Nothing goes to Kinetic Energy

Both-1, 2, 4

Potential Energy-3 and 5

Explanation:

Answer:

reflection

Explanation:

Objects that do not produce their own light, reflect light when the light is shone on them.

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Answer:

C.) the valence shells of each elements atoms get smaller

Explanation:

I did the test and got it right

Answer:

Atoms of elements are closer to filling their valence shell with electrons.

Explanation: i did the test and got it correct

Answer:

C) plastic

Explanation:

We know that like charges repel each other and unlike charges attract each other. When plastic ball is rubbed with fur, it could attract a positively charged pith ball. This means that the plastic ball gained electrons from the fur and became negatively charged.

When a glass rod is rubbed with fur, it could repel the same positively charged pith ball. This means glass rod lost electrons to the fur and became positively charged.

From this, we can conclude that most likely plastic could readily gain electrons.

c)

From the first observation, we can infer that the plastic ball has become negatively charged (it attracted a positively charged pith ball). From the second observation, we can infer that the glass rod became positively charged (it repelled the positively charged pith ball). This also implies that plastic will become more negatively charged than a glass rod if both are rubbed together. In other words, plastic gains electrons more readily

Answer:

absorbs heat and its kinetic energy increases.

Explanation:

As we know that heat is defined as the change in the temperature as there is increase in the temperature change then the heat will increase or decrease with respect to increase or decrease in temperature change.

In the given, question temperature is changing from 20° to 50° which means there is increase in the temperature which results in the absorption of heat. And increase temperature will increase the average speed of the molecules which results in increase in kinetic energy.

Answer:what you would do it 1.6*1.6/1.0=V (/=divied *=multiple) and then thats how you would fiqure out V wich V=2.56cm3

hope this helps

Answer:

Group 1 - the alkali metals. The Group 1 elements in the periodic table are known as the alkali metals.

Explanation:

Final answer:

Group 1 metals on the periodic table commonly form 1⁺ cations by losing their single valence electron.

Explanation:

The metals in group 1 on the periodic table most commonly form 1⁺ cations. This is because they have one valence electron in their outer shell, which they tend to lose to achieve the stable electron configuration of a noble gas. The loss of this single electron results in a positive charge of +1. Notably, all ions made from alkali metals, which make up the first column of the periodic table, exhibit this charge. Unlike metals in the groups 3-12, which can form multiple ion charges, group 1 metals have a consistent ion formation, making it easier to predict their behavior in chemical reactions.

I believe that it is a boy but if they would like to be classified as a girl or a boy their decision needs to be respected

I think the answer is D.

Answer:

A or D

Explanation:

If the answer is A it would allow the horse to get through the water faster. If it is D they would have a faster chance of escaping unharmed by the predator that is after them

Answer:

It will travel through outer space the fastest.

B. Outer Space.

The light will have the fastest velocity when it travels through air or vacuum.

Answer: Option A

Explanation:

Light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water. In air, light waves travel fast because here the refraction phenomenon, light bending cannot be explained by the fact that light travels in different materials at changing speeds. But, it can be clearly seen in the case of glass or water.

Light's velocity (vacuum and air) = 273,400 mph or 300 million m/s.

Light’s velocity (water) = 205,600 mph or 226 million m/s.

Light's velocity (glass) = 182,300 mph or 200 million m/s.

The gaseous state of a liquid is called as vapor under normal conditions of temperature and pressure.

Answer: Option A

Explanation:

Vapor is a form of substance floating in air where increasing or decreasing the temperature and pressure changes the state of the substance into gas or liquid.

For example : consider water where heating it to the boiling point makes it as water vapor and reducing its temperature makes it as ice.

Under normal conditions of temperature and pressure, the gaseous state of a liquid is called vapor. The correct answer is A.

When a liquid is heated or its pressure is reduced, the kinetic energy of its molecules increases, causing them to gain enough energy to overcome intermolecular forces and transition into the gaseous state. This gaseous form of a substance, while retaining the same chemical composition as the liquid, is called vapor.

Let's examine why the other options are not true:

B. Water: Water specifically refers to the liquid state of H2O molecules. While water can exist as a liquid, solid (ice), or gas (water vapor), under normal conditions, the gaseous state of a liquid is referred to as vapor rather than water.

C. Smoke: Smoke is not the gaseous state of a liquid. It typically consists of tiny solid particles or liquid droplets suspended in the air, resulting from the incomplete combustion of organic matter. Smoke is not directly related to the gaseous state of a liquid substance.

D. Ice: Ice refers to the solid state of water. It is the result of the cooling and freezing of liquid water molecules. Ice is not related to the gaseous state of a liquid substance.

Therefore, under normal conditions of temperature and pressure, the gaseous state of a liquid is called vapor. While water refers to the liquid state, smoke is not directly related, and ice represents the solid state of a liquid substance.

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Answer:

Paleobotany is the study of plant fossils

Explanation:

Answer:

The correct answer is plant fossils.

Explanation:

Paleobotany is a science shared by botany and paleontology, which studies the remains of plants that lived in the past. It also includes the use of the remains for the reconstruction of ancient environments and the history of life. It includes the study of fossils of terrestrial plants and marine algae.

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Answer:

C or the last choice.

Explanation:

The number of electrons (which have a minus charge) have the same charge as the number of protons (which have a plus charge) but opposite in sign as the protons.

So to take the very simplest example, hydrogen has 1 proton and 1 electron. The proton is 1+ and the electron is 1-. Together they cancel. No charge. If this were not true, everytime you picked something up if the charges were unbalanced, they would shock you to death literally.

The answer is the number of protons = the number of electrons. Neutons have nothing to do with it.

Answer:

The correct answer is the number of protons is equal to the number of electrons.

Explanation: