A student obtains two strips of magnesium, Mg, ribbon that are each 3 cm long. One strip of magnesium is placed in a test tube containing 5 mL of water, and the other strip is placed in a test tube containing 5 mL of hydrochloric acid, HCl. Both liquids are at room temperature. The student’s observations are recorded in the table.



Which statement is NOT supported by the student's observations?

Question 5 options:

A chemical reaction takes place between magnesium and hydrochloric acid.

A gas is released in Test Tube 2.

The substances in both test tubes are reactive only at high temperatures.

Energy is released in the reaction involving hydrochloric acid.

Answer:

In this instance, the sound wave travels 340 meters in 1 second, so the speed of the wave is 340 m/s. Remember, when there is a reflection, the wave doubles its distance. In other words, the distance traveled by the sound wave in 1 second is equivalent to the 170 meters down to the canyon wall plus the 170 meters back from the canyon wall.

Explanation:

Among electromagnetic waves, UV rays are most dangerous because exposure to these radiation cause serious problems in living organism. Therefore, in below given ways, speed of each wave can be expressed.

Electromagnetic wave is a wave which contain two component one is electric component and other is magnetic component. The electric and magnetic component are perpendicular to each other. There are so many wave that comes under electromagnetic wave like infrared wave , radio wave.

There is a relation between energy of wave. frequency of wave, and wavelength of wave

Mathematically,

E=hc/λ

where,

E = energy of electromagnetic wave

h is planks constant having value 6.67×10⁻³⁴js

c is speed of light that is 3×10⁸m/s

λ is the wavelength of electromagnetic wave

The sound wave moves 340 meters in one second, hence its speed is 340 m/s. In the event of a reflection, the wave's distance doubles. The distance covered by sound wave in one second is comparable to 170 metres down to a canyon wall + 170 meters back.

Therefore, in above given ways,  speed of each wave can be expressed.

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Answer:

Explanation:

In longitudinal and transverse waves, all the particles in the entire bulk of the medium move in a parallel and a perpendicular direction (respectively) relative to the direction of energy transport. In a surface wave, it is only the particles at the surface of the medium that undergo the circular motion.

Surface waves are a combination of transverse and longitudinal waves that move along the surface of a medium, while transverse waves involve vibrations perpendicular to the direction of wave propagation, and longitudinal waves involve vibrations parallel to the direction of wave propagation.

Surface waves are a type of wave that travels along the surface of a medium. They are characterized by having both a transverse and longitudinal component, meaning that the particles in the medium oscillate both horizontally and vertically as the wave travels. Examples of surface waves include ocean waves, seismic waves, and electromagnetic waves.

Transverse waves are a type of wave that involves vibrations perpendicular to the direction of wave propagation. In a transverse wave, the particles in the medium oscillate in a direction that is perpendicular to the direction the wave is moving. Examples of transverse waves include electromagnetic waves such as light and radio waves, and mechanical waves such as ripples on the surface of water.

Longitudinal waves are a type of wave that involves vibrations parallel to the direction of wave propagation. In a longitudinal wave, the particles in the medium oscillate in a direction that is parallel to the direction the wave is moving. Examples of longitudinal waves include sound waves, seismic waves, and longitudinal electromagnetic waves.

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Explanation:

medium: The material or empty space through which signals, waves or forces pass. direction of propagation: The axis along which the wave travels. wave: A moving disturbance in the energy level of a field.

Answer:

medium: The material or empty space through which signals, waves or forces pass. direction of propagation: The axis along which the wave travels. wave: A moving disturbance in the energy level of a field.

Answer:

Without shifting matter the entire distance, waves can transfer energy over distance. For instance, without the water itself moving many kilometers, an ocean wave may move many kilometers. The stream, a motion known as a disruption, goes up and down. It is the disruption that flows in a wave, transferring power.

Explanation:

The motion of spring is similar to that of sound wave in that the direction of the particles of the medium is parallel to the direction of the wave.

The motion of a spring pushed forward and backward under goes simple harmonic motion that forms a sinusoidal path. In this type of motion, the direction of the particles of the medium is parallel to the motion of the wave.

Sound wave is mechanical wave in which the direction of the particles of the medium is parallel (longitudinal) to the motion of the sound wave.

Thus, motion of spring is similar to that of sound wave in that the direction of the particles of the medium is parallel to the direction of the wave.

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Answer:

d transfer of heat through the movement of particles

The correct answer is option d: Transfer of heat through the movement of particles. Convection is a mode of heat transfer that occurs through the movement of particles.

Convection is the transfer of heat through the movement of particles in a fluid, such as a gas or liquid. Option (d) is the correct answer. Convection occurs when a temperature difference exists within the fluid, causing the hotter particles to become less dense and rise while the cooler particles sink. This movement creates a circulation pattern known as convection currents. Convection is a significant mechanism for heat transfer in various natural and man-made systems. For example, when a pot of water is heated on a stove, the bottom of the pot gets hot, causing the water near the bottom to heat up and expand. This hot water rises to the top, transferring heat to the surrounding cooler water. As a result, the water circulates in a convection current, leading to a more uniform distribution of heat. Convection is also responsible for phenomena like ocean currents, atmospheric circulation, and even the formation of thunderstorms. It plays a crucial role in distributing heat within the Earth's atmosphere and oceans, impacting weather patterns and climate.

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Answer:

Wave speed, frequency and wavelength in refraction

Although the wave slows down, its frequency remains the same, due to the fact that its wavelength is shorter. When waves travel from one medium to another the frequency never changes. As waves travel into the denser medium, they slow down and wavelength decreases.

Explanation:

havvee advvanncceed

Answer:

Waves. Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. Light is refracted when it crosses the interface from air into glass in which it moves more slowly.

Answer:

mass

Explanation:

The reflected waves should not return back to the transmitted source if there no hindrances in the moving  trajectories. If there is any hindrance or objections in front of the reflected wave there may occur some directional change and does not return to the airplane.

Reflection is phenomenon by which an incident wave on an object return backs in the straight direction. Reflection make an object shiny as we see from a mirror.

When light passes through a transparent or translucent material it penetrates through it and will refract or scatter from the object. This will happen when the frequency of the incident light does not matches with the frequency of  the incident light.

If the a some waves are transmitted from an airplane and they are reflected in a straight direction, it will not revert back to the airplane because the reflected light  will moves in a straight direction back from airplane.

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Answer:

Liquid???? I'm confused on what you are asking it has caffine?

Explanation:

fsdafdsfa

Answer:

C

Explained:

There's one nitrogen ball and we have two oxygen which is why there's a two there.

Answer:

Molecules

Explanation:

Electromagnetic waves are not like sound waves because they do not need molecules to travel. This means that electromagnetic waves can travel through air, solid objects and even space.

-Alexis

Answer:

Watch Naruto that's the answer

Explanation:

Jk it monocles

Answer:

Choice 3

Explanation:

I think it would be the easiest

6 Carbon atoms

In the 1st half, there are only 6 Carbon and it is the same on the other side, meaning it is a balenced reaction :)

Answer:

medium: The material or empty space through which signals, waves or forces pass. direction of propagation: The axis along which the wave travels. wave: A moving disturbance in the energy level of a field.

Answer:

Yes, you are correct

Explanation:

Nice job :)

Answer:

Physical and chemical changes are different because one deals with changes to ones shape or form, while chemical is changing one substance to another.

Explanation:

A example of a physical change would be cutting a block of wood into a cube of would, its physical change changes from a block to a cube. A chemical change is changing the substance into another substance so for example, burning that cube of wood in a fire. The fire is burning the wood into ash meaning it's no longer wood but ash.

Hope this helps.

Answer:

A mixture whose components are evenly distributed throughout.

Answer:

il get back to you soon with the answer

Explanation: need to eat lunch

The negative electrons are in motion around the positive nucleus to which they are attracted is true related to atom. Thus option a is correct.

Atoms are defined as the smallest unit into which matter can be divided without the release of electrically charged particle.

It is also defined as a building block of all the matter, created after big bang theory.

Electrons are defined as a negatively charged subatomic particles that together with protons and neutrons form an atoms nucleus.

Nucleus are defined as the central region of an atom where the majority of masses are concentrated and contains protons and neutrons.

Thus, the  negative electrons are in motion around the positive nucleus to which they are attracted is true related to atom. Thus option a is correct.

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Answer:

i laughed at a dead body lowkey

Explanation:.

Answer:

Because pasteurization kills harmful organisms responsible for such diseases as listeriosis, typhoid fever, tuberculosis, diphtheria, Q fever, and brucellosis. Pasteurizing is important to prevent these diseases....I hope this helps you

Answer:0.31

Explanation:that the answer

Answer:

biraz naruto izle

Explanation:

Answer:

People holding the slinky supply the energy to make the patterns. To make pattern 1, people have to shake the slinky back and forth at a certain speed. To make pattern 2, the slinky has to be moved back and forth faster (higher frequency). To make pattern 4, the people need to move the slinky back and forth much faster. It is much easier to make pattern 1 than pattern 4 because it takes less energy. This illustrates the relationship between frequency and energy – the higher the frequency, the higher the energy.

Explanation:

Answer:

Coal, fossil fuels, electricity

Explanation: