What can be inferred after performing the experiments in the Atomic Theory lab

Answers

Answer 1

Answer: The answer is if matter is created or destroyed :) Hope this helped you out at least some

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Please help ACTUALLY ANSWER i dont understand CER writing?this is an example:

Claim: cookies are good because they are good
evidence : ¨cookies have 1 billion protien¨- the new york times
reasoning: (what would i put here???)
PLEASE HELP AND ACTUALLUY ANSWER

Answers

Well cer does stand for claim, evidence and reasoning and for reasoning I usually put bs there so, for example

Claim: Cookies are good because they have a lot of protein

Evidence: “Cookies have 1 billion protein.” - New York Times

Reasoning: I chose this because it specifically backs up my claim. Not only do cookies have 1 billion grams of protein they also are very delicious to eat.

what can accurately be said about a resultant wave that displays both reinforcement and interference?

Answers

Answer;

The component waves have different frequencies.

Explanation;

-When two periodic waves meet, their amplitudes add (by principle of superposition) and the resulting disturbance can be either reinforced (constructive interference) or eliminated (destructive interference) .

-The magnitudes of reinforcement usually really dependent on the number of frequencies and interference is usually caused due to the difference in frequencies. Therefore, we can conclude that if the frequencies are different and causing interference, the reinforcement will also different.

As the frequency of the waves increases, a greater number of wavelengths pass a given point per second. From the wave formula, we see that there is an indirect relationship between frequency and the wavelength. thus, as the frequency increases the wavelength decreases resulting to a smaller distance between the waves which will show greater number of wavelengths between waves.

How far does a car travel as it accelerates from rest to 24 m/s in 6 seconds?

Answers

Answer:

$\boxed{\sf Distance \ travelled = 72 \ m}$

Given:

Initial velocity (u) = 0 m/s (Starts from rest)

Final velocity (v) = 24 m/s

Time taken (t) = 6 seconds

ToFind:

Distance travelled by car (s)

Explanation:

From equation of motion of object moving with uniform acceleration in straight line we have:

$\boxed{ \bold{s = ((v + u)/(2) )t}}$

By substituting value of v, u & t in the equation we get:

$\sf \implies s = ( (24 + 0)/(2) ) * 6 \n \n \sf \implies s = (24)/(2) * 6 \n \n \sf \implies s = 12 * 6 \n \n \sf \implies s = 72 \: m$

$\therefore$

Distance travelled by car (s) = 72 m

Which pair of terms best describes a wooden table?

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The answer is:

A) Biotic and non living

The explanation:

when Biotic refers to the component of living things that are part in ecosystem. Nonliving meaning a certain thing or the table does not have any life but it's biotic.

and we here have a wooden table that is derived from a living thing like a tree and it is nonliving as its a table.

If a substance forms crystals when it solidifies, its _______ points are the same. a. melting and freezing
b. melting and condensation
c. evaporation and freezing
d. evaporation and condensation

Answers

I think the correct answer is A. If a substance forms crystals when it solidifies, its melting and freezing points are the same. For most substances, it is known that the freezing and the melting points are equal. Freezing happens by crystallization, formation of crystals from the liquid form.

Answer:

Option (a): Melting point and freezing point are will be the same when crystallization.

Explanation:

When crystals form from the mechanism of crystal growth, it’s known as crystallization. A crystal is a solid type of material which is having a regular pattern of atoms and molecules.

Temperature of a compound which changes its physical state from solid state to liquid state is known as melting point temperature.

Temperature of a compound which changes its physical state from liquid state to solid state is known as the freezing point temperature.

Most of the liquids are freeze by the method of crystallization. The temperature of the system remains nearly equal to melting point.

Further Explanation:

Basically there are two types of crystallization processes. They are the cooling and evaporation crystallization.

Salts, sugar and gemstones are some examples for crystals.

Crystallization consists with two steps; Nucleation and Crystal growth. In nucleation; solute molecules dispersed in the solvent are gather in to clusters. These clusters need to reach a critical size to become stable nuclei, by factors such as temperature and super saturation.

After nucleation, crystal growth happens. In this process the nuclei increases its size to a critical cluster size.

In crystal growth solute molecules precipitate out of solution. Then they dissolve back into solution.

Learn more:

1. Freezing point brainly.com/question/155317 (answer byTenishaTon)

2. Melting point brainly.com/question/13688040 (answer by olowookereboyede)

Keywords:

Melting point, freezing, crystallization

A small plastic sphere with a charge of -6.0 nC is near another small plastic sphere with a charge of -14 nC . If the spheres repel one another with a force of magnitude 8.3×10−4 N , what is the distance between the spheres?

Answers

Here is how to answer the question.

Use the formula:
F = kq1q2/r^2

F = force = 8.3x10^-4N
q1, q2 = charges
r = separatioon
k = constant = 9x10^9 in MKS units

so we have

r = sqrt[k q1 q2/F]
r = sqrt[9x10^9*(-14)x10^-9 * (-6)x10^-9 / 8.3x10^-4 ]
r = 0.0302 m

So the distance between spheres is 0.0302 m

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Look at the graph. During what interval is the object decelerating?A) 0-1sB)5-20sC) 20-4D)40-50s