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ad-work [718]
2 years ago
15

let us suppose a person who has a 45 kg mass is riding along a frictionless roller coaster track. The cart at a particular insta

nt, is 15 m above the ground and traveling at 30 m per seconds. Do you think the kinetic and potential energy of the car that the person riding is the same? why? ​
Biology
1 answer:
d1i1m1o1n [39]2 years ago
3 0

Answer:

Yes.

Explanation:

The person and the cart are moving together, and being effected by the same kinetic and potential energy.

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Which THREE statements correctly describe the properties of water?
grandymaker [24]
<em>CORRECT STATEMENTS
> Water forms hydrogen bonds with other polar molecules. </em>
<em>> Water is a polar molecule. </em>
<em>> Water dissolves more ionic compounds.</em> 

<em />Water is a polar molecule because of its uneven distribution of electron density. It is made up of two hydrogen atoms and one positive atom.
Since water is a polar molecule, it forms hydrogen bonds with other polar molecules. Though these bonds are relatively weak, however, there are so many of them present in water. 
Water also dissolves most ionic compounds due to the fact that water is a universal solvent. When these compounds are added to water, there will be an interaction between the individual ions and the polar regions of the water molecules and disrupts the ionic bonds. 

<em>INCORRECT </em>
> Liquid water is less dense than water vapor. - Liquid water has a higher density than water vapor. The fact that water vapor rises indicates that it is less dense than water.

>Water dissolves more hydrophobic substances. - Hydrophobic substances do not dissolve easily in water. It is termed as 'hydrophobic" because it means water-fearing. 

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3 years ago
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ycow [4]

Answer:

Part A: The process of sexual reproduction is important because by this process organisms with varied genetic characteristics can be formed. Crossing over and independent assortment allow individuals to be born which are not alike to another and their parents. As a result, genetic diversity is produced.

Part B:

The process 1 is meiosis. The process 3 is development by mitosis.

The reproductive organs form sperm and egg by the process of meiosis. During this process, the number of chromosomes is reduced so that the number of chromosomes of an individual can be maintained.

The zygote converts into an embryo in a process called germinal development. The zygote replicates by mitosis to form into an embryo.

3 0
3 years ago
BRAINLY PLEASE HELP
Pie
A tcells was the first day I had to go home to the dog and I see
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tembaga yang massanya 500 gram dan bersuhu 61 c dicelupkan ke dalam air 200 gram bersuhu 35 c. suhu campuran menjadi 40 c jika k
FrozenT [24]

Answer:

the answer is 40c because i just took the test

Explanation:

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2 years ago
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Answer: It is a product formed.

Reasoning: The plant uses the energy from the glucose to survive and to photosynthesize. Glucose is the product of photosynthesis. 
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