Salinity and density share a positive relationship. As density increases, the amount of salts in the water—also known as salinity, increases. Various events can contribute to change in the density of seawater. Salinity can decrease from the melting of polar ice or increase from the freezing of polar ice.
This question is based on law of conservation of momentum, which says total total momentum of the system is equal to total momentum of the system after collision.
Before collision, = 340 kg m/s
After collision, = mass * velocity = 60 kg * v
Here, we need to find the velocity with which Sheila was thrown after the collision.
According to law of conservation of momentum,
=
340 = 60 * v
v = 340 / 60 = <u>5.667 m/s</u> [approximately]
The speed with which Sheila was thrown from the bike is <u>5.667 m/s</u>.
Answer:
hey have demonstrated that applying a mask to an optical beam to give photons a spatial structure can reduce their speed.
Explanation:
Answer:
The purpose of meiosis is to produce gametes, which are used for sexual reproduction.
The cell reduces its chromosome number in half via a series of complex events. These events are summarised into two main groups: Meiosis I and Meiosis II, with each group encompassing several different events.
One way is : 1) Meiosis; the end product is 4 genetically different haploid cells.
Explanation:
Gametes are haploid cells that have only one set of chromosomes. As opposed to Somatic cells which contain two sets of chromosomes (these are known as diploid cells).
In Meiosis I, crossing over occurs during the event known as Prophase I. Crossing over is the process where non-sister chromatids exchange genetic information with one another. The site where this occurs between the chromatids is known as the chiasma.
Answer:
c. Proteins
Explanation:
A stretch of DNA that code for specific proteins is said to be a gene. A gene is transcribed into mRNA. The mRNA has a nucleotide sequence complementary to the corresponding gene. The nucleotide sequence of mRNA is read in the form of genetic codes during the process of protein synthesis to specify the amino acid sequence of proteins. Therefore, genes carry the genetic information for the assembly of proteins and the processes of transcription and translation deliver the stored genetic information.