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3 years ago

Pls answer

Chemistry

1 answer:

photoshop1234 [79]3 years ago

5 0

Transverse waves have motion perpendicular to velocity, while longitudinal waves have motion parallel to velocity.

Explanation:

The correct option of all is that transverse waves have motion perpendicular to velocity while longitudinal waves have motion parallel to velocity.

A wave is a disturbance that transmits energy from one point to another. There several types of waves like sound, electromagnetic , ocean waves etc.

Waves can be classified as either longitudinal or transverse waves based on the direction through which they are propagated.
Longitudinal waves are waves propagated parallel to the source of velocity.
An example is sound waves and seismic p-waves.
They have series of rarefaction and compression along their path.
Transverse waves are propagated perpendicular to their source.
An example is electromagnetic waves in which electrical and magnetic fields vibrates perpendicularly.

learn more:

Electromagnetic radiation brainly.com/question/6818046

#learnwithBrainly

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4. Which two compounds contain the same total number of atoms?

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Answer:

Explanation:

Atom is the smallest particle of an element

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4 years ago

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How many hydrogen atoms are in water?

Viefleur [7K]

Water is H2O. hydrogen atom is H1 O2
so hydrogen atom is H2

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3 years ago

Beverly and Carl are in a race. Their graphs show the data.

Nikitich [7]

Given the data, the correct statement is

Even though for a majority of the race they accelerated at the same rate, Beverly won because her initial acceleration was greater than Carl’s

<h3>What is acceleration? </h3>

This is defined as the rate of change of velocity which time. It is expressed as

a = (v – u) / t

Where

a is the acceleration
v is the final velocity
u is the initial velocity
t is the time

<h3>How to determine the initial acceleration of Beverly</h3>

Initial velocity (u) = 0 m/s
Final velocity (v) = 15 m/s
Time (t) = 10 s
Initial acceleration (a₁) =?

a₁ = (v – u) / t

a₁ = (15 – 0) / 10

a₁ = 1.5 m/s²

<h3>How to determine the final acceleration of Beverly</h3>

Initial velocity (u) = 15 m/s
Final velocity (v) = 35 m/s
Time (t) = 50 - 10 = 40 s
Final acceleration (a₂) =?

a₂ = (v – u) / t

a₂ = (35 – 15) / 40

a₂ = 0.5 m/s²

<h3>How to determine the initial acceleration of Carl</h3>

Initial velocity (u) = 0 m/s
Final velocity (v) = 10 m/s
Time (t) = 10 s
Initial acceleration (a₁) =?

a₁ = (v – u) / t

a₁ = (10 – 0) / 10

a₁ = 1 m/s²

<h3>How to determine the final acceleration of Carl</h3>

Initial velocity (u) = 10 m/s
Final velocity (v) = 30 m/s
Time (t) = 50 - 10 = 40 s
Final acceleration (a₂) =?

a₂ = (v – u) / t

a₂ = (30 – 10) / 40

a₂ = 0.5 m/s²

SUMMARY

Initial acceleration of Beverly = 1.5 m/s²
Final acceleration of Beverly = 0.5 m/s²
Initial acceleration of Carl = 1 m/s²
Final acceleration of Carl = 0.5 m/s²

From the above calculations, we can see that Beverly's initial acceleration is higher than that of Carl's and their final acceleration is the same.

Therefore, the correct answer to the question is:

Even though for a majority of the race they accelerated at the same rate, Beverly won because her initial acceleration was greater than Carl’s

Complete question

See attached photo

Learn more about acceleration:

brainly.com/question/491732

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2 years ago

Explains why anyone in the classroom can hear that loud teacher across the hall even though the door is barley cracked open

Natasha_Volkova [10]

Diffraction:
Diffraction<span> describes how waves bend, or change direction, as they travel around the edges of obstacles. </span>Diffraction<span> occurs in water waves, </span>sound <span>waves, and light waves, but the amount of </span>diffraction <span>depends on the size of the obstacle or opening in relation to the wavelength of the wave.</span>

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3 years ago

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What is the initial temperature (°C) of a system that has the pressure decreased by 10 times while the volume increased by 5 tim

Ede4ka [16]

Answer:

300K

Explanation:

Given pressure of the system decreased by 10 times which means $P_{2} =\frac{P_{1} }{10}$