Answer:
5.7 m/s
Explanation:
The computation of Sheila 's velocity right after she gets thrown out of the bike is shown below:
1) The Physical principle: conservation of momentum.
If there is no net external force operating on a system, so the system's total momentum is conserved
The momentum, p, is a vector magnitude that is determined as the product of the mass by the velocity:
P = mv.
2) Taking into account therefore that there is no net force on the device, Sheila and the momentum of the bike are the identical pre and post collision.
Based on this, the calculation is as follows
Momentum before the collision:
[tex]P_1 = (mass\ of\ Sheila + mass\ of\ the\ bike) \times velocity[/tex]
[tex]P_1 = (60kg + m) \times v_1[/tex]
= 340 kg m/s
Now Momentum after the collision:
[tex]P_2 = mass\ of\ sheila \times velocity\ of\ Sheila + mass\ of\ the\ bike \times velocity\ of\ the\ bike[/tex]
[tex]P_2 = 60kg \times v_2 + m \times 0 = 60kg \times v_2[/tex]
[tex]P_1 = P_2[/tex]
[tex]= (60kg + m) \times v_1[/tex]
[tex]= 60kg \times v_2[/tex]
[tex]= 340 kg .\ m/s[/tex]
[tex]= 60kg \times v_2[/tex]
[tex]v_2 = \frac{340\ kg .\ m/s }{60\ kg}[/tex]
= 5.7 m/s
The velocity of Sheila immediately after she is thrown from the bike is 5.67 m/s.
The given parameters;
mass of Sheila, m = 60 kgmomentum of Sheila, P = 340 kg.m/sThe velocity of Sheila immediately after she is thrown from the bike is calculated as follows;
P = mv
where;
v is the velocity Sheila
[tex]v = \frac{P}{m} \\\\v = \frac{340}{60} \\\\v = 5.67 \ m/s[/tex]
Thus, the velocity of Sheila immediately after she is thrown from the bike is 5.67 m/s.
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True or false. Introduction of exotic species has beneficial biological and economic effects
Answer:
false
Explanation:
they have afect them by altering the envirament the nature
Which statement describes one or both formations?
Formation 2 is an extrusion.
Formation 1 is an intrusion.
Formations 1 and 2 are faults.
Formations 1 and 2 are igneous rock.
Answer:
Formations 1 and 2 are igneous rock.
Explanation:
Trust me
Answer:
formations 1 and 2 are igneous Rock. hope this helps:)
Explanation:
Kai has a see-through glass tank with air, plants, and animals that eat those plants. He sealed the tank so no material can get into or out of it, but light can get in when the tank is not covered.
The light for the tank has been on all day, and Kai measured the carbon in the air and found that it is decreasing. How is carbon moving between the air and the living things in the tank? What is happening to the amount of carbon in living things? Explain your thinking as completely as possible.
Answer:
1. Carbon is moving from the living things in the tank into the air when they respirate, and from the air back into plants via photosynthesis
2. The amount of carbon in living things is increasing as plants use the carbon in the atmosphere, and animals eat the plants.
Explanation:
According to the question, a well sealed tank contains air, plants and animals. Since light can get into the tank, plants can perform photosynthesis. Living things in the tank release carbon in form of carbondioxide (CO2) gas through respiration. Plants then make use of this carbondioxide (CO2) to synthesize carbon-containing food (glucose) in the presence of sunlight. This process is called PHOTOSYNTHESIS.
Animals eat those plants and the stored carbon in the plants gets transferred to them. The animals release this carbon into the air again in the form of carbondioxide when they respire. Hence, carbon in the tank moves from the living things (respiration) into the air and back into plants (photosynthesis).
2. Since the amount of carbon in the air is decreasing, the carbon is being used by the living things in the tank. Plants absorb the carbon in the atmosphere for photosynthesis, then animals eat the plants to get the carbon. Therefore, the amount of carbon in the living things is increasing.
1. Carbon is flowing from the living organisms in the tank into the air by the process of respiration and from the surrounding back into plants via photosynthesis.
The animals in the tank utilize the oxygen when they inhale while during exhalation carbon dioxide is liberated. The carbon dioxide in the tank is used by the aquatic plants to produce food and energy in this way the level of oxygen and carbon dioxide is maintained in the tank.2. The quantity of carbon in living, are expanding as plants use this carbon in the process of photosynthesis from the environment and animals consumes those plants.
The deposited carbon in the food gets spent by the animals and they release this carbon back via exhalation. Therefore the quantity of carbon in living things is increasing.To learn more about respiration and photosynthesis follow the link:
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The Serengeti region of Africa contains a population of cheetahs and a population of lions. Studies have shown that the cheetah population has very low genetic diversity, while the genetic diversity of the lion population is quite high. The cheetah population is also much smaller than the lion population. Both populations are vulnerable to infection with a particular virus that can be fatal in both species. What is the most likely outcome if both populations are infected with this virus?
A.
The cheetah population is more likely to survive because there are fewer individuals for the virus to attack.
B.
The lion population is more likely to survive because larger populations are immune to viruses.
C.
The cheetah population is more likely to survive because lower genetic diversity increases immunity to viruses.
D.
The lion population is more likely to survive because it is more likely to have individuals with traits to combat the virus.
Answer:
D. The lion population is more likely to survive because it is more likely to have individuals with traits to combat the virus.
Explanation:
Since lions have greater genetic diversity it is likely that there's one or two lions that have a trait to resist or kill the virus thus won't be infected, whereas, since cheetah's have low genetic diversity and low population size it is likely that they have little to no chance to surviving this virus attack since the genetic makeup is similar among the members of cheetah species.
Answer:
d
Explanation:
plato
What is the genotype of the male circled in pink?
Answer:XaY
Explanation
XAY is the genotype of the male circled in pink.
What is the genotype?An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual carries in a specific gene or genetic region are also referred to as the genotype.
The term “genotype” broadly refers to an organism's genetic make-up; in other words, it characterises an organism's whole gene pool. The phrase can also be used to describe the alleles, or different forms of a gene, that an organism carries in a more specific meaning.
The genotype XAY for a male denotes the manifestation of an X-linked dominant characteristic. It is an X-linked dominant illness called fragile X syndrome. If their father has the condition, the sickness will afflict the girls, but not the males.
Therefore, The pink circled male's genotype is XAY.
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Why is this important to make new DNA?
Answer: DNA is vital for all living beings – even plants. It is important for inheritance, coding for proteins and the genetic instruction guide for life and its processes. DNA holds the instructions for an organism's or each cell's development and reproduction and ultimately death. so it is important
In roses, red flowers and long stems are dominant traits. A rose plant that is homozygous for both red flowers and long stems is
crossed with a rose plant that is heterozygous for red flowers and homozygous for short stems. What percentage of the offspring
will exhibit red, long-stemmed flowers?
25 percent
O 50 percent
O 75 percent
O 100 percent
Answer:
This is late but the answer is 100%
Explanation:
I got a 100 on the test
The percentage of the offspring that will exhibit red, long-stemmed flowers is 100 percent; that is the last option as all of the offspring will show dominant traits, which are red, long-stemmed.
What is genetic crossing?In the context of genetics, traits are characteristics that are passed down from parents to offspring through their genetic material (DNA). These traits are determined by genes, which are segments of DNA that contain the instructions for the development of a particular characteristic. Here, the gene for flower color in roses has two alleles: R (red) and r (white). The R allele is dominant, and the r allele is recessive. Similarly, the gene for stem length has two alleles: L (long) and l (short). The L allele is dominant, the l allele is recessive, and from the cross, all will be dominant.
Hence, the percentage of the offspring that will exhibit red, long-stemmed flowers is 100 percent; that is the last option.
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which of these properties, used alone, would be least useful in identifying most minerals? A color B luster C streak D density
Answer:
A-color
Explanation:
Minerals could have the same color, and you can't depend on color to tell you that.
Answer:
A, color.
Explanation:
Color would be the least useful because minerals are often the same or similar in color. :)
what is the definition of vacole
a vacuole is a cell inside of the cytoplasm.
Which increases the rate of soil formation?
Mixed layers
More Precipitation
Cooler temperatures
Very hard parent material
Answer: more precipitation
Answer:
B. more precipitation
Explanation:
The soil needs more rain or the organic material will die.
which statement best describes the scientific process
Answer:
Where is the statement
Explanation:
Answer:
best answer
Explanation:
Make an observation.
Ask a question.
Form a hypothesis, or testable explanation.
Make a prediction based on the hypothesis.
Test the prediction.
Iterate: use the results to make new hypotheses or predictions.
Consider these three scientific statements
1. The inherited traits of plant, animal, and microbial populations change through time because of differential reproductive success patterns, which are influenced by the way individual organisms interact with their environment.
2. If a certain culture of bacteria is subjected to more ultraviolet radiation than another culture, Then it's reproductive success rate will be reduced.
3. In sexual reproduction, Recessive alleles are always masked by dominant alleles. in other words, the traits of a Recessive allele will not be expressed if a dominant allele is present.
These statements have a lot in common. Each statement is testable, each describes a potential realishionship between observable factors, and each deals with a different aspect of reproduction or inheritance. However, one of the statements is typical of a scientific hypothesis, one is typical of a scientific theory, and one is typical of a scientific law.
Which statement is a hypothesis, which is a theory, and which is a law? "Justify your anwsers"
Answer: 1. Scientific theory
2. Scientific hypothesis
3. Scientific law
Explanation:
The scientific theory can be defined as the aspects of the natural world that are tested and proofed by the scientific methods, involving the observations, measurements and evaluation of the outcome. The scientific theory can be changed with new ideas or evidences. The first statement is a scientific theory because the microbial population may change due to the fact that how microbes interact rather than restricting to the differential reproductive success.
The scientific hypothesis can be defined as the statement that is required to be tested or verified by scientific method. It is based on presumption. The second statement is the example of scientific hypothesis because it is beginning with "if" here it is presumed that if the culture is exposed to ultraviolet radiation then reproductive success rate will be reduced.
The scientific law is based upon facts or evidences obtain after experimental trails or applying the scientific methodology. This cannot be changed with time. The third statement is the Mendel's law of dominance.
how do you make your hair stop itchin will mark brainlist
Answer:
It’s probably caused by dandruff or a dry scalp
Explanation:
Take a shower and make sure to use conditioner
help please! our existing body of scientific knowledge was developed
Answer:
The answer should be C: mostly in the 20th century
Explanation:
Answer: D
Explanation: Throughout history
law of consevation of matter
What unusual cellular characteristic does N. locustae share with the protist Mixotricha paradoxa, the organism discussed in the article "A Russian Doll of Symbiosis?"
Answer: Both N.locustae and protist Mixotricha paradoxa do not have a mitochondria.
The mitochondria is a basic cell organelle that palys the role of energy generation for the cell.this energy generated is in the form of ATP.
The organism N. locustae tends to rely on it's host cell that is that grasshopper. This host cell is that in which N. locustae replicates inorder to get a supply of energy.
On the other hand,the organism Mixotricha paradoxa relies on the bacteria endosymbionts to be able to supply it with energy.
The bending of which body part involves the working together of parts of the skeletal, muscular, and nervous systems?
Answer:neck
Explanation:
The bending of the neck involves the cranial nerves ,muscles and also vertebral skeletal system
molecules helped by protein; move insoluble molecules across plasma membrane:
phagocytosis
active transport
passive diffusion
facilitated diffusion
pinocytosis
Answer:
I think its facilitated diffusion.
Explanation:
Hope it helps out :)))The T allele codes for tall stems in pea plants and the tallele codes for short stems. Which of the
following are possible genotypes for the offspring from a cross of Tt x tt?
a TT and tt
b. Tt
C. TT and Tt
d. Tt and tt
Answer:
D Tt and tt
Explanation:
In one punnet square you will have Tyler in the other three will be tt
What is the lava like that produces an eruption like this one? A. thin and runny B. thick and runny C. thick and sticky D. thin and rich in gas
Find the curved surface area, total surface area and volume of the following cylinders.
(a)height is10 cm and radius is7cm
(b)height is 20cm and diameter is 14cm
Answer:
Explanation:
Curved S.A-πdh
Volume=πdh
22/7 ×14×10=440cm²
22/7×7×7×10=1540cm³
22/7×14x2=88cm²
440+88=528cm²
B
Csa 22/7×20×14=880cm²
Volume 22/7×7×7×20=3080cm³
Total sa
2Dπ=22/7×14×2=88cm2
88+880= 768cm²
How are glaciers, glaciation and human activities relate to climate change or global warming
Answer:
The Production of C02 Co2 is an greenhouse gas and will go up into the atmosphere to heat it if the atmosphere is gaining to Much C02 it will heat up therefore Glaciers Will melt under the increasing heat a
Which molecule would be the most affected by limited nitrogen?
myofibrillar proteins in muscle
glucose molecules in starch
fat molecules surrounding organs
cellulose molecules in plant cell walls
Myofibrillar proteins in muscle would be the most affected by limited nitrogen.
What are proteins?Proteins are essential biomolecules composed of linear sequences of building blocks called amino acids.
The amino acids are composed of nitrogen (N), carbon (C), hydrogen (H) and oxygen (O), and often also sulfur (S).
Nitrogen is, therefore, a fundamental component of all amino acids, which form proteins such as enzymes, peptide hormones, etc.
In conclusion, myofibrillar proteins in muscle would be the most affected by limited nitrogen.
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function of the vacule
Which organelles are found only in plant cells and not in animal cells? cell membrane, vacuole cell wall, chloroplasts cell wall, vacuole cell membrane, chloroplasts
Answer:
Cell wall and Chloroplasts
Explanation:
I just studied hope its correct (～￣▽￣)～
Answer:
Cell wall and chloroplast
Explanation:
Plant cells are the fundamental building blocks of plants and they are eukaryotic because of the membrane bound organelles and nucleus also found in Animal cells.
Plant cells organelles are chloroplast and cellwall which is not found in animals.
Chloroplast is an organelle which contain the green pigment use for photosynthesis.
Cell wall is an organelle found in plant cell which contain cellulose, hemicellulose, liginin, pectin , soluble protein and microfibrils. It provide strength and protect the plant against mechanical or osmotic stress.
Why do different organisms have similar bones in the same place?
Answer:
they all share a common ancestor. (more info below)
Explanation:
Some organisms have anatomical structures that are very similar in embryological development and form, but very different in function. Such structures indicate an evolutionary relationship and a common ancestor.
hope this helped!
During photosynthesis which product is formed that cannot be broken into smaller units?
Answer:
oxygen
Explanation:
6CO2 + 6H2O + light ----> C6H12O6 + 6O2
Oxygen (O2) is an element, so it cannot be broken on smaller units.
Answer:
the Glucose
Explanation:
what type of animal is a girrafe?
Answer:
It is an African artiodactyl mammal
Explanation:
Answer:
Explanation:
i strongly believe it is It is an African artiodactyl mammal
hope it helps
-Delilah
explain briefly the process of nutrition in amoeba
Explanation:
amoeba is an microscopic unicellular organism found in the moist soil ponds and lakes. When amoeba comes in contact with food ,it produces pseudopodia around the food particles the food get trapped in food vacuole. Digestive juices are secreted into the food vacuole to digest the food. The digested food is absorbed and used for production of energy. the undigested food present in the food vacuole, is expelled. from the amoeba, by the process of egestion
As a muscle I am responsible for regulating leaving teh body
Answer:
The digestive system is in charge of squeezing energy and nutrients out of all that ... Anus: The place where solid waste exits the body.