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padilas [110]
3 years ago
8

How will you investigate a change in velocity affects the velocity of the two carts after the collision if the objects do not st

ick together?
Biology
1 answer:
Nutka1998 [239]3 years ago
8 0

P = mv

This is a momentum question:

Momentum is always conserved so the momentum before and after a collision must be equal so:

The velocity of the two objects after they collide and dont stick together if no KE is lost is dependent on the mass of each of the objects by:

m_{1} v_{1i} + m_{2} v_{2i} = m_{1} v_{1f} + m_{2} v_{2f}\\

Where i is initial and f is final meaning before and after the collision

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Elis [28]

Answer:

Stem cells are cells in the human body that have the ability to develop into many other body cell types. Stem cells are very useful for drug development, research, they aren't likely to be rejected in transplants, and are used to repair damaged or diseased cells and tissues. However, they cannot be grown for long periods of time, there are very small numbers in each tissue and cell making them very hard to find, and for certain studies they have been shown to cause cancer. To be honest, using them in research does have its pros and cons, they are very useful and easier to use in research, plus they can help repair damaged and diseased cell tissues. But at the same time they can be difficult to use correctly and properly, it can cause serious health problems if cancer doesn't take place. I think that using them in research is okay, as long as they are used correctly and properly.

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7 0
2 years ago
what do you think are some human characteristics that reflect a common ancestry between non human primates and ourselves?
anzhelika [568]

Explanation:

Primates are the mammalian order of organisms, having flexible hands and feet. These organisms have a developed brain and include organisms like lemurs, lorises, humans and apes. Humans are placental mammals, who have a highly developed brain.

Step 2 of 3

The evolutionary relationship between humans and non human primate can be studied based on the anatomical features and behavior that these two organisms share. The human characteristics that reflect a common ancestry between human and non-human primates are as follows:

1. The body hair are present on both the organisms.

2. Giving birth to young ones, after a long gestation period is common in both the organisms.

3. Different types of teeth which are incisor, canine, premolar and molars are present in both the organisms.

4. Both the organisms have the capability to regulate their thermal body temperature.

5. The brain size and capacity of both the organisms is large.

6. The capacity to learn and adapting to suitable behavior based on that is well present in both the organism.

Step 3 of 3

Chimpanzees are primates, belonging to the same ape family as humans. Chimpanzees are the closest living relative of humans. They are basically of two types, pan troglodytes and pan paniscus. Chimpanzee and humans are similar in following ways:

1. Brain volume of humans and chimpanzees is almost similar. Brain volume of human is 1350 ml (milliliter) while that of chimpanzee is 1370 ml.

2. Both humans and chimpanzees socialize among themselves.

3. According to scientific reports, humans and chimpanzees share about 95% similarity in DNA (Deoxyribonucleic acid).

3 0
2 years ago
Te gradient of a stream depends on its A. stream channel. B. speed. C. bass level. D. bank level
kotykmax [81]
C. Bass level
Hope it helps
8 0
3 years ago
Read 2 more answers
Over 30 children younger than three years of age developed gastroenteritis after visiting a local water park. These cases repres
Flauer [41]

Answer:

No this is not an outbreak

Explanation:

No it cannot be classified as outbreak because an outbreak is when the number of affected individuals in an epidemic is much higher as compared to the estimated values. However, an epidemic is the one that affects the people around different countries of the globe.

This can be considered as endemic that is restricted to a certain set of people in a community

I would have studied pattern of movement of affected kids. The common pool to which all these kids visited can be the infectious one. Also one can test the pathogen in infected kinds, and look for similar pathogen in pool water through testing.

5 0
3 years ago
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Anna35 [415]

Answer:

<em>The correct option is B) as the light colored moths were seen and eaten, the allele for dark colour became more prevalent in the population.</em>

Explanation:

The process of natural selection tends to favour those organisms which are better adapted to live in an environment. Evolution changes the allele frequencies of a population over time depending on the traits favoured by natural selection.

Before the industrial revolution, the colour of the trees was lighter and hence, the light coloured moths were better adapted to such environments as they could hide from predation. After the industrial revolution, the colour of the woods of trees became darker. The light coloured moths were no more able to hide from their predators and hence their population declined.

4 0
2 years ago
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