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timofeeve [1]
3 years ago
14

Which statement best describes comparative and descriptive investigations?

Chemistry
1 answer:
olasank [31]3 years ago
7 0

Answer:

they both include a question, procedure and conclusion.

Explanation:

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Name one object that would be considered a solid. Describe how the atoms move in a solid object.
Roman55 [17]

Objects considered a solid:

Pencil

Water bottle

Phone

Table

Plant

Atoms are very attracted to one another in solid objects. They vibrate, but remain in fixed positions without moving.

7 0
3 years ago
calculate the speed of an electron if its de broglie wavelength is twice its displacement in one second
valkas [14]

Answer:

The speed of an electron is 0.01908 m/s.

Explanation:

De-Broglie wavelength is given by:

\lambda=\frac{h}{mv}

where,  \lambda = wavelength of a particle

h = Planck's constant = 6.626\times 10^{-34}Js

m = mass of particle

v = velocity of the particle

Velocity of an electron = v

Mass of an electron = 9.1\times 10^{-31}kg

Wavelength of electron is twice the displacement in seconds which is velocity of an electron.

Then.wavelength of an electron = \lambda =2v

\lambda =2v=\frac{6.626\times 10^{-34}Js}{9.1\times 10^{-31}kg\times v}

v = 0.01908 m/s

The speed of an electron is 0.01908 m/s.

5 0
3 years ago
What functions are similar in both eukaryotic and prokaryotic cells
hammer [34]
Similars are they both contain all 4 biomolcules, have ribsomes, can be uniceullar, have cell membranes and cell wall, have DNA, and similar metabolism
3 0
3 years ago
What kind of phase transition will occur when energy is continuously supplied to a solid sample?
Annette [7]
The correct answer should be C. Melting because if energy such as thermal energy is supplied to a solid such as ice then it would melt
5 0
3 years ago
Read 2 more answers
Is this the right answer to this question....?
givi [52]

Transport of Na+ from a place of low concentration to a place of higher concentration. <u>This is the right answer.</u>

<u />

The sodium-potassium pump is the most common and well-known example of active transport. At the cell membrane, the sodium-potassium pump moves 3 sodium ions out of the cell and two potassium ions into the cell per ATP. Examples of active transport include the uptake of glucose in the human intestine and the uptake of minerals and ions into the root hair cells of plants.

One of the greatest examples of active transport is the movement of calcium ions out of cardiomyocytes. Cells secrete proteins such as enzymes, antibodies, and various other peptide hormones. Amino acids are transported across the intestinal mucosa of the human intestine. The movement of ions or molecules across cell membranes to regions of a higher concentration is assisted by enzymes and requires energy.

Learn more about Active transport here:-brainly.com/question/25802833

#SPJ1

3 0
1 year ago
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