Answer:
The face of the child is 3.0 cm from the ornament.
Explanation:
Diameter of the ornament = 8.0 cm
radius = [tex]\frac{diameter}{2}[/tex]
= [tex]\frac{8.0}{2}[/tex]
radius = 4.0 cm
But,
focal length of the ornament (f) = [tex]\frac{r}{2}[/tex]
= [tex]\frac{4.0}{2}[/tex] = 2.0
So that,
f = 2.0 cm ............... 1
Also,
Magnification = [tex]\frac{Image distance}{Object distance}[/tex]
[tex]\frac{1}{2}[/tex] = [tex]\frac{v}{u}[/tex]
v = 2u ............. 2
Substitute equations 1 and 2 in the mirror formula,
[tex]\frac{1}{f}[/tex] = [tex]\frac{1}{u}[/tex] + [tex]\frac{1}{v}[/tex]
[tex]\frac{1}{2}[/tex] = [tex]\frac{1}{u}[/tex] + [tex]\frac{1}{2u}[/tex]
= [tex]\frac{2 + 1}{2u}[/tex]
[tex]\frac{1}{2}[/tex] = [tex]\frac{3}{2u}[/tex]
6 = 2u
u = [tex]\frac{6}{2}[/tex]
u = 3.0 cm
Thus, the face of the child is 3.0 cm from the ornament.
Realice una línea de tiempo en orden cronológico de los siguientes Científicos que
estudiaron y aportaron sobre el origen de la vida:
● Aristóteles
● Jan Baptiste Van Helmont
● Francisco Redi
● Lazzaro Spallanzani
● John Needham
● Louis Pasteur
Utilice cualquier herramienta digital que le sea útil para completar su proyecto.
Cada científico debe tener detallado:
● Principal investigación referente al origen de la vida.
● Pensamiento sobre el origen de la vida.
● Descripción de la época en la que vivía.
● Opinión individual sobre el pensamiento que tiene el científico.
Answer:
Explanation:https://www.pinterest.com.mx/pin/835065955894197434/
why would life outside of the earth be so important to us?
why do you think that squirrel is better suited for the environment? Explain your reasoning
what are the disadvantages of using models such as diagrams study the rock cycle?
Answer:
It doesn't exactly cover everything
Explanation:
brainliest?
For a typical human aorta, the diameter of the lumen is 30 mm and the thickness of the wall is 4 mm. Assuming a blood density of 1.06 gm/cc and a viscosity of 0.035 Poise, calculate the Womersley number if the heart rate is 70 bpm. Diameters for the carotid and femoral arteries of a typical human are about 0.8 cm and 0.5 cm, respectively. Compute the Womersley numbers for each of the arterial segments for the same heart rate and explain if the flows can be assumed steady or not.
Answer:
Womersley numbers : 22.25 , 5.96 , 3.72
Explanation:
Calculate the Womersley number if the heart rate = 70 bpm
For the Human Aorta
∝ = r [tex]\sqrt{\frac{wp}{u} }[/tex] ------ ( 1 )
r = radius = 15 mm = 0.015 m
w = 2πf = 2 * π * 70 = 439.82
p = density of blood = 1060 kg/m^3
u = 0.035 P = 3.5 cp = 3.5 * 10^-3 Ns/m^2
Back to equation ( 1 )
∝ = 0.015 * [tex]\sqrt{\frac{439.82*1060}{60*3.5*10^{-3} } }[/tex] = ( 0.015 * √466209.2 / 0.21 ) = 22.35
For Carotid artery
r = 0.8 cm / 2 = 0.4 cm = 0.004 m
w = 2πf = 439.82
Womersley number = ( 0.004 * √466209.2 / 0.21 )
= 0.004 * 1489.981 = 5.96
For Femoral artery
r = 0.5 cm / 2 = 0.25 cm = 0.0025 m
Womersley number = 0.0025 * √466209.2 / 0.21 )
= 0.0025 * 1489.981 = 3.72
The flow is unsteady because of the varying Womersley numbers
why might patients who go into remission get a different type of cancer?
Answer:
Remission can be partial or complete. In a complete remission, all signs and symptoms of cancer have disappeared. If you remain in complete remission for 5 years or more, some doctors may say that you are cured. Still, some cancer cells can remain in your body for many years after treatment.
Match the medical professionals to the disorders they are likely to treat. pancreatitis diabetes colon cancer peptic ulcer disease proctologist arrowRight hepatologist arrowRight gastroenterologist arrowRight endocrinologist arrowRight
Answer:
Proctologist > Diabetes
Hepatologist > Pancreatitis
Gastroenterologist.> Colon Cancer
Endocrinologist. > Peptic Ulcer Disease
what is angiosperm in plant
Answer: a plant that has flowers and produces seeds enclosed within a carpel. The angiosperms are a large group and include herbaceous plants, shrubs, grasses, and most trees.
Explanation:
I need help plz help me
Answer:
T and A are together
G and C are together
Explanation:
these pairs will always connect to each other
What does this model most likely represent?
Answer:
a model is a representation of an idea, an object or even a process or a system that is used to describe and explain phenomena that cannot be experienced directly
compare and contrast how the proportion "better" and "inferior" trait changes over time in a environment.
please explain
Answer:
i think better and inferior trait changes of the years we live on this earth
Explanation:
because lots of people try to study about eveything so they can write things about it
BEST ANSWER GETS BRAINLIEST!!!!!!!!!!!!!!!
An organism, by definition, consists of multiple cells.
True
False
Answer:
true
Explanation:
yw can u help me with my question plsss
HELP!! Examine the model depicting the relationship between photosynthesis and cellular respiration. Select ALL of the choices that correctly pairs products and reactants with their place in the model. A) A: ATP B) B: water and oxygen C) B: water and carbon dioxide D D: carbon dioxide and ATP E) D: oxygen and glucose
There are ways to Examine a model. The options that correctly pairs products and reactants with their place in the model are;
A) A: ATP
B) B: water and oxygen
D D: carbon dioxide and ATP
What are products and reactants?A combination reaction is known to be a type of reaction where two reactants combine to form one product.
Oxygen and the halogens are known to be highly reactive elements and may undergo combination reactions with other known elements.
Learn more about products and reactants from
https://brainly.com/question/13677872
Answer:
ACE
Explanation:
Prisms produce the colors of the rainbow through?
A. Reflection.
B. Refraction.
C. Scattering.
D. Absorption.
Answer:
It should be B
Explanation:
I hope this helps
Can you guys help me
Analise as alternativas abaixo e assinale a INCORRETA sobre o sistema nervoso. *
Um neurônio motor atua nos músculos, recebendo estímulos.
Os receptores sensoriais percebem estímulos.
Na resposta involuntária, o estímulo recebido não é processado no cérebro.
Neurônios associativos conectam neurônios sensitivos aos neurônios motores.
Os nervos conectam o cérebro ao corpo.
Answer:
Na resposta involuntária, o estímulo recebido não é processado no cérebro. It's correct ✔
What is duplication event ?
Answer:
Duplications arise from an event termed unequal crossing-over that occurs during meiosis between misaligned homologous chromosomes. The chance of it happening is a function of the degree of sharing of repetitive elements between two chromosomes.
Explanation:
This is what I found I'm not sure
One of a group of external regulatory proteins that stimulates the growth and division of cells is
Answer:
Cyclin-regulates the timing of the cell cycle. Normally, when cells touch, they stop growing. Growth factors-one of a group of external regulatory proteins that stimulate the growth and division of cells.
Explanation:
I hope it's help u
crabtree effect on glycolysis
Answer: 'At high fructose concentrations, respiration is inhibited while glycolytic end products accumulate, a phenomenon known as the Crabtree effect. It is commonly believed that this effect is restricted to microbial and tumour cells with uniquely high glycolytic capacities (Sussman et al, 1980).
Explanation: Sorry I dont really know a lot
Only producers/autotrophs
Products are carbon dioxide and water.
Products are glucose
and oxygen.
Reactants are carbon dioxide and water.
Reactants are glucose and oxygen.
Photosynthesis
Both
Cellular Respiration
Answer:
photosynthesis - Only producers/autotrophs, products are glucose and oxygen, reactants are carbon dioxide and water
cellular respiration - products are carbon dioxide and water, reactants are glucose and oxygen
reasons for eating animals.
Answer:
Eating animals are a good source of protein and fatty acids that can be difficult to find with vegetarian options
Answer:
Taste good.
Explanation:
mmmmm chicken
) Name the 3 polymers of carbohydrates and describe the structure and function of each of them.
Answer:
The correct answer is - starch, glycogen, and cellulose.
Explanation:
Polysaccharides are the name of the polymers of carbohydrates that have long chains of monosaccharides connected together. Carbohydrates like starch, glycogen, cellulose, are long polymers of monosaccharides.
Starch produced by plants and is a long-term storage form of sugar. Starch is also the major source of food and is made of two major polysaccharides amylose, linear polysaccharide of α-1,4-linked d-glucopyranose with a few branches of α-1,6 linkages, amylopectin, amylopectin possesses a branched structure with α1–4 as well as α1–6 glycosidic linkages.
Glycogen is a polymer of glucose residue with α-1,4 glycosidic bonds and after every 10 residues, there is branches off via α-1,6 glycosidic linkages. It is the second storage form of energy.
Cellulose is the structural polymer that is made up of unbranched chains of glucose molecules linked via beta 1-4 glycosidic bonds every second glucose is inverted in this polysaccharide.
Which of the following is a model that
shows the amount of energy available as it
flows through an ecosystem?
A) niche
B) energy pyramid
C) carrying capacity
D) food chain
Answer:
b
Explanation:
energy pyramids show how the energy passes through the ecosystem
Scientists have determined that Earth's interior has layers with different properties. One property is that the inner core is solid. Which of the following statements can be used as evidence to support this property?
Answer:
Earth's inner core is the innermost geologic layer of the planet Earth. It is primarily a solid ball with a radius of about 1,220 km (760 mi), which is about 20% of Earth's radius or 70% of the Moon's radius.[1][2]

The internal structure of Earth
There are no samples of Earth's core accessible for direct measurement, as there are for Earth's mantle. Information about Earth's core mostly comes from analysis of seismic waves and Earth's magnetic field.[3] The inner core is believed to be composed of an iron–nickel alloy with some other elements. The temperature at the inner core's surface is estimated to be approximately 5,700 K (5,430 °C; 9,800 °F), which is about the temperature at the surface of the Sun.[4]
What happened to make the K-T boundary?
Answer:
A meteorite big enough to be called a small asteroid hit Earth precisely at the time of the K-T extinction. The evidence for the impact was first discovered by Walter Alvarez and colleagues. They found that rocks laid down precisely at the K-T boundary contain extraordinary amounts of the metal iridium
Explanation:
How did the development of the sexual reproduction affect evolutionary change?
The number of electrons in atoms determine an elements ? properties
Answer: The number of protons in one atom of an element determines the atom's identity, and the number of electrons determines its electrical charge.
Explanation:
Look at the food web shown above.
In this ecosystem, phytoplankton are considered to be
OA. producers
OB. decomposers
OC. consumers
OD. all of these
9. If the Earth and the Moon were on the same orbital plane, how often would a lunar eclipse
occur?
A. Once a month at the First Quarter phase.
B. Once a month at the full Moon phase.
C. Once a month at the New Moon phase.
D. Once a month at the Third Quarter phase.
Answer:
.B
Explanation:
once at the full moon phase
Help me match the words at the bottom with they definition
Answer:
The definitions in the attachment is numbered accordingly as follows:
1. Electrophoresis
2. Polymerase Chain reaction
3. DNA probe
4. Chromosome
5. Restriction enzyme
Explanation:
1. Gel electrophoresis is a biological technique used to separate DNA fragments according to their size and charge using electric current passed through a gel matrix containing the samples.
2. Polymerase chain reaction, commonly known as PCR, is a molecular technique developed by Kary Mullis. It is used to make million copies i.e. amplify of a specific segment of DNA from a very small amount of DNA.
3. DNA probe