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Alex73 [517]
3 years ago
12

In step 1, the insulating plate (such as plastic) becomes positive charged when rubbed with cloth. what is the name of this phen

omenon?
Biology
1 answer:
CaHeK987 [17]3 years ago
3 0
An insulating plate, such as plastic, tends to be positively charged when rubbed with cloth due to the piezoelectric effect. This phenomenon involves certain materials to generate charged particles as a response to mechanical stress applied to it. In this case, the mechanical stress was due to the rubbing motion. 
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dimaraw [331]
Please repost this question as a Spanish question next time. <span>Por favor vuelva a hacer esta pregunta como una pregunta en español la próxima vez. Thank you, gracias.</span>
5 0
3 years ago
If the pH of pure water is 7, ammonia is 12, and coffee is 5, which is acidic, which is
n200080 [17]

Answer:

acidic :- coffee

basic :- ammonia

neutral :- water

Explanation:

anything with ph value 7 is neutral.

anything with ph value less than 7 is acidic and greater than 7 is basic.

6 0
3 years ago
Four structural domains of tRNA transcripts include the T loop, the D loop, the anticodon loop, and the
umka2103 [35]

Answer:

The correct answer will be option-B.

Explanation:

Transfer RNA or tRNA is the RNA molecule associated with the protein synthesis as it adds the specific amino acids to the nascent growing polypeptide.

The structure of the tRNA molecule resembles the shape of a clover leaf and is known as the clover leaf model. The structure contains hydrogen-bonded stems and associated loops. The stems include acceptor stem which posses CCA 3'-terminal group to attach amino acids. The anticodon loop contains an amino acid attachment site. T and D loop contains modified pseudouridine and dihydrouridine.

Thus, Option-B is the correct answer.

 

6 0
4 years ago
Describe two prerequisites for determining population size or density (# indiv / area) and potential challenges?
zaharov [31]
<span>To determine population size one must have an effective way to count individuals in a given area. This can be challenging since individuals move and may be accounted for multiple times, therefore skewing the final results. Population density requires one to also calculate the area in which the population resides. This is relatively simple to do, but if individuals then exit or enter the calculated area, then the population density changes.</span>
4 0
4 years ago
Which of the following statements is not consistent with the results obtained in Rutherford’s gold foil experiment?
OLEGan [10]
D. Electrons are contained in the nucleus of an atom.
8 0
4 years ago
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