The percent errors are 0.8 percent and 2 percent
It is given that the theoretical boiling point of water is 100.0 degree celsius
When any impurity is added to water, its boiling and freezing points increase or decrease accordingly.
We are required to find the percentage error in calculation of freezing point or in simple words deviation from theoretical value of 100 degrees
We are given two temperatures
Case 1:
When the boiling point is 99.2 degree
deviation from theoretical value= 100-99.2 = 0.8 degrees
Percent error in calculation from theoretical value =deviation/original value x 100
= 0.8 /100 x 100 = 0.8 per cent
Case 2:
When the boiling point is 102 degree
deviation from theoretical value= 102-100 = 2 degrees
Percent error in calculation from theoretical value =deviation/original value x 100
= 2/100 x 100 = 2 per cent
Hence the percent errors are 0.8 percent and 2 percent
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An autopsy report shows evidence of a gunshot wound and mentions
exsanguination (extreme blood loss) and homicide. The mechanism of
death in this case would be
gunshot wound
homicide
exsanguination
No answer text provided.
The mechanism of death is the physiological derangement that results in death. An example of a mechanism of death due to the gunshot wound described above is exsanguination extreme blood loss.
Homicide is defined as the act of one person that directly causes the death of another. Homicide also includes death occurring during or in connection with the commission of a crime. A death mechanism describes a particular change in the body that brought about the end of life. For example, if the cause of death is a shootout.
The mechanism of death could be exsanguination, exsanguination, or cessation of brain function. A death certificate must be ordered within 72 hours, but the coroner's investigation into the cause of death can take weeks or months. That is, the cause of death is listed as pending on the certificate. This is the default if the cause of death is still unknown.
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try to classify the following stem growth forms.
the arrows in the diagram stands for forces in earth,s crust pulling apart the two slabs of rock. this force is called
a.) tension
b.) elavation
c.) compression
d.) shearing
Answer:
I'm pretty sure it is c or a
Forces in earths crust pulling apart the two slabs of rock, this force is called Tension. Therefore, option (A) is correct.
Earth's crust tension pulls rock apart. At divergent plate borders, tectonic plates move apart. Faults form when tensional forces strain and thin rocks when plates separate. These faults can create rift valleys, mid-ocean ridges, and other geologic features.
Seafloor spreading and continental rifting are driven by tension. As plates separate, magma from the mantle rises to build new crust. New crust is formed at mid-ocean ridges. Tensional forces can also cause continental rifting and ocean development. Tension forms Earth's crust and moves tectonic plates. Therefore, option (A) is correct
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“our business in life is not to get ahead of others, but to get ahead of ourselves.” -E Joseph Cossman (inventor, businessman, entrepreneur, and author)
what do you think the author means by “get ahead of ourselves”? can you think of an example of this?
What the author meant by “get ahead of ourselves” is to be more successful than others.
Getting ahead of others goes beyond the statement literally, it also cut across getting more achievement than our friends, neighbors, colleagues and so on.
Getting ahead of ourselves is far more important important
What is meant by getting ahead of others?To be ahead of others has countless meaning which should not be misconstrued. However, it is not uncommon in our present society to be ahead of each other.
That being said, getting ahead of others is not our business but ahead of ourselves. Getting ahead of others mean reaching more excellence, productivity, goals, success and dreams higher than others.A friend who is more productive in his or her career is far ahead than the other who is less productiveSo therefore, what the author meant by “get ahead of ourselves” is to be more successful than others.
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8. Indicate how you would make 300 ml of 1X PBS (phosphate buffered saline) from a 20X PBS stock
solution.
Concentrate must be diluted 20 times with distilled water to create a 1X PBS solution. A mixing flask should be filled with the proper volume of 20X PBS concentrate before adding water to reach the desired volume. Stir only once. The pH of the 1X solution must be 7.6 & 0.2.
A common isotonic solution used in biological research is phosphate-buffered saline (PBS). Add 100 mL of 10X PBS to 900 mL of water to create 1 L of PBS. [tex]137 mM NaCl[/tex], [tex]2.7 mM KCl[/tex], [tex]10 mM - Na_{2} HPO_{4}[/tex], and [tex]1.8 mM KH_{2} PO_{4}[/tex]are all present in this PBS mix.
Concentrations for 1X PBS Solutions:
[tex]NaCl - 137 mM[/tex]
[tex]Na_{2} HPO_{4} - 10 mM[/tex]
[tex]KH_{2} PO_{4} - 1.8 mM[/tex]
[tex]KCl - 2.7 mM[/tex]
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Which of the following properties is unique to echinoderms within higher invertebrates?
A.
radial symmetry
B.
bilateral symmetry
C.
segmentation
D.
exoskeleton made of chitin
Which of these is part of the biosphere?
a. bees
b. sand
c. rivers
d. clouds
Answer:
c
Explanation:
What is the MOST frequent cause of slash and burn deforestation?
A. office buildings
B. canals like the Panama Canal
C. National Parks
D. agriculture
3. What region of the Earth is most affected by tsunamis? (provide ocean name and
nickname of this region)
Answer:
Pacific Ocean and Indonesia
Explanation:
Which of the following statements best explains the difference between a theme and a topic?
A theme is one word; a topic is a complete sentence.
A theme is what the text is about; a topic is the lesson delivered to the reader.
A topic is what the text is about; a theme is the lesson delivered to the reader.
A theme is revealed in the exposition; the topic is revealed in the resolution.
The statement that best explains the difference between a theme and a topic is as follows: a theme is what the text is about; a topic is the lesson delivered to the reader (option B).
What is a theme and topic?A theme is what is generally being talked about, as opposed to the rheme.
Although a theme and topic are similar and often confused, the major difference between them is that;
a topic pertains to the story's “what.” and is driven by facts and specifics.a theme deals with the big picture and overall meaning that reveal why the story matters.Therefore, it can be said that the statement that best explains the difference between a theme and a topic is as follows: a theme is what the text is about; a topic is the lesson delivered to the reader.
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Answer: The answer is C) A topic is what the text is about; a theme is the lesson delivered to the reader.
Explanation:
if there is 10 fish
2fish swim away
2fish died
2 fish drowned.
how many fish are now?
when do mammals and dinosaurs appear in the rock sequence? Label this point appearance of mammals and dinosaurs
In the Triassic period, mammals and dinosaurs appear in the rock sequence.
During which period did mammals first appear?The first mammal appear in the fossil record during the late Triassic period, which is about 225 million years ago. The Triassic period is also known as the first period of the Mesozoic era. This period started from 251.9 to 201.3 million years ago. This era is popularly known as the “Age of Reptiles” because reptiles and dinosaurs were the dominant land animals at that time and they are present in large population due to good environmental conditions and large availability of food resources. We know that dinosaur extinct due to unavailability of food and bad environment.
So we can conclude that In the Triassic period, mammals and dinosaurs appear in the rock sequence.
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can you help me please
The equilibrium price according to the graph is $3.00. Option C.
What is an equilibrium price?An equilibrium price of a product is the price that equates the demand for the product with its supply.
In other words, the equilibrium price is the price at which demand equals supply.
On a graph of price against quantity, the demand curve slopes downward from left to right. On the other hand, the supply curve slopes upward from left to right on the same graph.
The price at which the demand curve intersects the supply curve on the graph is known as the equilibrium price.
From the graph, the approximate value of the equilibrium price is $3.00.
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What is the main reason that people are hesitant to use nuclear energy?
a.
It produces radioactive waste.
D.
It uses large amounts of water.
C.
The ore used for
nuclear energy must be mined.
d.
It is more damaging to natural habitats than the use of coal.
Answer: D
Explanation: It is D because it does damage natural habitats, and also uses loads of coal that needs to be produced, that could possibly be Exteremly hazardous or has high end levels of radiation
What causes the moon to have different phases?
. How do the parent guinea pigs and their pups provide evidence that support Mendel's conclusion about inheritance?
The guinea pig is a small, domesticated rodent native to South America. Humans domesticated this species somewhere about 5,000 B.C., perhaps from the Montane Guinea Pig.
The domestic version, sometimes known as "Cavies," is a separate species today. They are frequently kept as pets in homes and are typically well-liked because to their docility and love to people. Continue reading to learn more about the Guinea Pig. These rodents are quite little, with tiny ears, short legs, and no tail. Cavies normally weigh one to two pounds and are eight to nine inches long.
Animals with a variety of colors and coats have been painstakingly produced by humans. Therefore, instead of being white, cream, grey, black, orange, or any combination of the aforementioned hues, these little rodents are brown.
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what close it take to be a philosopher?
Answer:
Get a bachelor's degree in philosophy.
Going to an accredited university to earn your BA in philosophy is the first step in becoming a Philosopher. ...
Go to graduate school to earn your master's degree or PhD in philosophy. ...
Select an area of specialization. ...
Write a dissertation.
Explanation:
what is the name for the rafflesia's organism
Which of the following reasons explains why electrical cords are plastic coatings with metal wires on the inside?
Explanation:
metal has high electrical conductivity,but so you don't get electrocuted the metal has plastic coating because Plastic has low electrical conductivity
What is used to trap light energy in plants?
Answer:
chlorophyll
Explanation:
this is right
Answer:
Chlorophyll.
Explanation:
Chlorophyll, located in chloroplasts in the leaves of a plant.
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Discuss a factor that may lead to substance or alcohol use and abouse
Peer pressure is a factor that may lead to substance or alcohol use and abuse.
Peer pressure has a significant role in young individuals beginning to use and abuse drugs. Family involvement is lacking. Addiction risk can be boosted by challenging family dynamics, a lack of connection to your parents or siblings, and a lack of parental supervision. first use.
Addiction and negative peer pressure are frequently connected. Someone who experiences this kind of peer pressure is more likely to engage in unhealthy activities, such as drug or alcohol usage. Peer pressure and relapse in addiction may also be related because it may cause an addict to relapse after making the decision to pursue recovery.
When it comes to drug use, peers can have either a positive or negative impact on their friends. Depending on the situation, peer pressure may be used to discourage people from using particular sorts of drugs, convince them not to use any drugs at all, or motivate them to abuse all forms of drugs.
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(a) Pepsin is a protein-digesting enzyme found in the stomach. It
has an optimum pH of 2 and is fully denatured at pH 6. Sketch a
curve on the graph to show the effect of pH on the rate of
reaction of pepsin.
Please find attached a sketch of the rate of reaction enhanced by pepsin at various pH, which shows a peak in the reaction rate at a pH of 2, and a reduction to (almost) zero rate of reaction at a pH of 6.
How can the variation of the rate of reaction with pH be graphically presented?(a) The given parameters for the enzyme, pepsin are;
Type of enzyme = Protein–digesting enzymeLocation of enzyme = The stomachEnzyme optimum pH = 2pH at which the enzyme is denatured = 6Required;
A sketch of a curve that shows the effect of varying pH values on the reaction rate of pepsin.
Solution;
An enzyme is denatured when it is not able to function to affect the rate of a reaction due to the loss of its tertiary or three dimensional structure.
The rate of the reaction when pepsin is denatured at a pH of 6 can therefore be taken as zero.
The graph of the variation of the rate of reaction for pepsin with pH consists of a curve that has a peak reaction rate at a pH of 2, and slopes downwards towards a reaction rate of zero at a pH of 6.
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You need to find out why the GBR water is inhibiting (stopping) photosynthesis in the algae. The three major parts of photosynthesis are PSI, PSII and the Calvin cycle. The database has provided 3 things that could be inhibiting photosynthesis: high sea temperatures, paraquat, and diuron.
Explanation:
If the temperature increases then that will decrease the sugar but not the ATP and NADPH. So I predict that diuron will inhibit the photosynthesis because if photosystem II is infered with it then photosynthesis wouldn't work.And also, because paraquat will lower the NADPH and sugar but not ATP. Hence Diuron is the only choice left.
what type of cell transport uses carrier proteins
Aspartame is a food additive that can cause dangerous health problems for some people. a. true b. false
yir-ytnf-wdbEvery month a man consumes 25 kg rice and 9 kg wheat. The price of rice is 20% of the price of wheat and thus
The price of rice and consumption of wheat %decrease in the amount of rice is 36%.
What makes consumption so important?One of the more complex concepts in economics, consumption is crucial since it influences the health and development of the economy. Businesses can start up and offer a variety of fantastic things, but if we don't buy or use them, they won't last very long.
Calculation:Suppose wheat costs x per kilogram. Wheat will then cost 5 times as much per kilogram.
Expenditure on rice = 25*x = 25x.
Expenditure of wheat = 9*5x = 45x.
Total cost,
25x + 45x = 350.
70x = 350.
x = 5.
Hence, price of Rice = Rs. 5 per kg.
Price of wheat = 25 per kg.
price of wheat = 25 ---- 20% ----> Rs. 30 per kg.
Rice be N kg
N*5 + 9*30 = 350.
N = 16 kg.
Rice decrease as a percentage = [(25-16)*100]/25=36%.
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The complete question is -
Every month a man consumes 25 kg rice and 9 kg wheat. The price of rice is 20% of the price of wheat and thus he spends total Rs. 350 on the rice and wheat per month. If the price of wheat is increased by 20% then what is the percentage reduction of rice consumption for the same expenditure of Rs. 350? Given that the price of rice and consumption of wheat is constant :
A-4
B-25
C-36
D-24
State two criteria of a scientific hypothesis.
Explanation:
cientific hypothesis
Home
Science
scientific hypothesis
By Kara Rogers • Edit History
scientific hypothesis, an idea that proposes a tentative explanation about a phenomenon or a narrow set of phenomena observed in the natural world. The two primary features of a scientific hypothesis are falsifiability and testability, which are reflected in an “If…then” statement summarizing the idea and in the ability to be supported or refuted through observation and experimentation. The notion of the scientific hypothesis as both falsifiable and testable was advanced in the mid-20th century by Austrian-born British philosopher Karl Popper.
pls marke brainliest
Germany and Italian have your Sanskrit for has a
PLEASE HELP IM RUNNING OUT OF TIME THANK YOU
Which of the following statements, from the cell theory, best supports the idea that viruses are non-living?
A. All viruses are composed of one nucleic acid and protein.
B. All animals are composed of cells
C. All cells are produced from other cells.
D. All living things are composed of cells.
Consider the scenario.
A scientist sets up an experiment to see how sugar in the diet of
rats affects their weight. The scientist feeds one group of rats a
diet high in sugar, another group a diet of moderate sugar levels,
and a third group a diet low in sugar.
All of the rats in the experiment are the same species and age
and start the experiment at a healthy weight. The rats also
receive the same kind of sugar.
What is the independent variable?
A. amount of sugar
B. weight of the rats
C. age of the rats
D. type of sugar
The dependent variable is affected by the independent one. The amount of sugar (heigh, moderate, low) is the independent variable. Rats weight is the dependent variable.
What are the dependent and independent variables?Independent variables are those modified or changed by the researcher to study how this change affects another variable and hence the results.
This variable is not affected by any other one but influences or causes a reaction in other variables.
The dependent variable is the one influenced by the independent variable, and is affected by any change on this last one.
Its response might be either directly proportional or inversely proportional to the change in the independent variable.
In the exposed example,
Aim of the experiment: to see how sugar in the diet of rats affects their weight.Independent variable: Amount of sugar (high, moderate, low)Dependent variable: Rats weightControl variables: Type of sugar, initial weightThe amount of sugar (independent variable) that was provided to rats will affect or influence their weight (dependent variable).
So, rats weight will change according to the sugar they get in the diet.
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Give three important adaptation of peanut that able it to outcompete native plants in terms of nutrients.
Answer:
Explanation:
What are 3 reasons plants could develop a physical adaptation?
All plants, no matter where they grow, are adapted to certain conditions, which can include temperature, available water, soil type, and interactions with animals and other organisms.
Hope this helps :)
Explanation:
Tara's careful about punctuation and spelling when he writes letters to customers and clients which professional work habit is Pierre demonstrating a consistency adaptability see attention to detail the healthfulness timeliness
