CHEMISTRY MIDDLE SCHOOL

If light has a frequency of 2.4 x 10 to the 14th Hz what is it’s wavelength?

Answers

Answer 1

Answer:

The equation we need to use to solve this is: c=λν

c is the speed of light (2.998 x 10^8 m/s)

λ is the wavelength, which we're gonna solve for

ν is the frequency ( 2.4 x 10^14 Hz )

First, plug in the values we were given into the equation

2.998 x 10^8 m/s= (λ)(2.4 x 10^14 Hz)

Next, divide both sides of the equation by 2.4 x 10^14 Hz to solve for the wavelength (λ)

λ= 1.249166667 x 10^-6 m

Round to 2 significant figures

λ= 1.2 x 10^-6 m

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_____ is a gel-like substance enclosed by the cell membrane that contains the cell's organelles. A) chloroplast B) cytoplasm C) nucleus D) protein

Answers

Answer: The correct answer for the blank is-

B) cytoplasm.

Cytoplasm is the fluid filled compartment ( a thick, gel like substance) within the cell of a living organism that is mainly composed of water, salts, and proteins. It is surrounded by the cell membrane ( plasma membrane) and contains all the parts of cell ( such as in eukaryotic cell, it contains all the cell organelles except nucleus). It is the site for all the essential cellular processes.

Thus, option B) is the right answer.

Answer: Option (B) is the correct answer.

Explanation:

In a living organism, the cell which is mostly composed of water, salts and proteins is known as cytoplasm.

It is thick and gel like in nature which has fluid filled compartment.

A chloroplast is an organelle found in the cells of plants and eukaryotic algae which are responsible for the conduction of photosynthesis.

Nucleus is an organelle present in eukaryotic cells. It contains hereditary information of a cell and helps in controlling the growth and reproduction of cells.

Polymers of amino acids are known as proteins. Each protein has some specific functions.

Thus, we can conclude that out of the given options cytoplasm is a gel-like substance enclosed by the cell membrane that contains the cell's organelles.

How could you tell if a sample of matter is a element

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Terms of good sample

In general, a good sample is which can represent as much as possible the characteristics of the population. In the language of measurement, meaning that the sample must be valid, which can measure something that should be measured. A valid sample is determined by two considerations.

First: The accuracy or precision, the degree of absence of "bias" (error) in the sample. In other words, the less the error rate is in the sample, the more accurate the sample. Benchmarks for "bias" or error is population.

Cooper and Emory (1995) states that "there is no systematic variance"that means is there is no diversity of measurement due to the influenceof known or unknown, which led to scores tend to lead to a certainpoint.

Second: Precision. The second criterion is to have a good sample estimate of the level of precision. Precision refers to the question of how close we are to estimate population characteristics. There has never been a sample that can fully represent the characteristics of the population. Therefore,in each sampling always attached keasalahan-error, which is known as"sampling error" Precision is measured by standard deviation (standarderror). Thesmaller the difference between the standard deviation obtained from thesample (S) with a standard deviation of the population (s), the higherthe level of precision. Thoughnot always, the level of precision may be increased by adding thenumber of samples, the fault may be reduced if the number of samplesplus (Kerlinger, 1973).

what would happen if the cell wall in a plant cell just broke like all of them at the same time would it change the color or will it grow faster or will it die what will hapen

Answers

It would not change the color and it would not grow anymore. The cell wall is the outside layer of a plant, so if it eventually breaks off for some reason, it cannot grow anymore. Some plants can survive if their cell wall broke off, like a cactus. Cactuses can keep growing because it can be tall or short. (if someone like cut it in half or something, the cactus can still grow) Cactus does not have any leaves or anything connected to it (except for thorns) and if you break it, it can still grow.

Answer:

the cell will either

Explanation:

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