Answer: By Snell's law, we can see that the angle of refraction is 30.34°
Explanation:
Snell's law says that:
If a ray in a medium of refractive index n₁, insides with an angle θ₁ in another medium with refractive index n₂, then the angle of refraction θ₂ is given by:
n₁*sin(θ₁) = n₂*sin(θ₂)
We know that:
The incidence angle is 45°, then: θ₁ = 45°
We can assume that the first medium is air, then n₁ = 1
The refractive index of the other medium is 1.4, then n₂ = 1.4
Replacing these in the Snell's law equation we get:
1*sin(45°) = 1.4*sin(θ₂)
Now we can solve this for the angle of refraction:
sin(45°)/1.4 = sin(θ₂)
Asin(sin(45°)/1.4 ) = Asin( sin(θ₂)) = θ₂ = 30.34°
So the angle of refraction is 30.34°
Mom is a dominant purebred for big feet. Dad is a hybrid for foot size. What are their chances of big feet? Or little feet? _ out of _ or _ %
Answer:
Parent´s chances:
Mom´s chances of giving their children the big feet allele are 2 out of 2, or 100%Mom´s chances of giving their children the small feet allele are 0 out of 2, or 0%Dad´s chances of giving their children the big feet allele are 1 out of 2, or 50%.Dad´s chances of giving their children the small feet allele are 1 out of 2, or 50%Offspring chances:
The offspring have 4 out of 4 or 100% of probability of having big feet. And 0 over 4 or 0% of probabilities of having short feet.Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached file
Which are true about changes in carbon dioxide in the Earth's atmosphere since 1860? Select the two correct answers.
A. The increases in carbon dioxide are caused by human activity.
B. The increases in carbon dioxide can be explained by the Milankovitch cycle.
C. The rate of change in carbon dioxide is exponential.
D. The changes are triggered by a new interglacial period.
The true statements about changes in carbon dioxide in the Earth's atmosphere include:
The rate of change in carbon dioxide is exponential. The increases in carbon dioxide are caused by human activity.What is Carbon dioxide?This is a gas which is found in the atmosphere and it is what we exhale when breathing and used by plants during photosynthesis.
The changes in the gas in the Earth's atmosphere since 1860 is as a result of the factors mentioned above.
Read more about Carbon dioxide here https://brainly.com/question/1016850
How much force would a shot putter need to make a 5.5 kg shot accelerate at 8 meters per so one squared
Answer:
44 N
Explanation:
Force applied can be calculated using the formula as follows;
F = m.a
Where;
F = force (Newton)
m = mass (kg)
a = acceleration (m/s²)
According to the information provided in this question, mass of shot put = 5.5kg, acceleration = 8m/s². Hence;
F = m × a
F = 5.5 × 8
F = 44 Newtons
The force needed by the shot putter is 44N.
please help please i really need it
Answer:
b
Explanation:
Answer:
with what??? :(
Explanation:
The greatest amount of genetic variation is produced in offspring that reproduce -
A. sexually through fission B. asexually through budding C. sexually through meiosis D. asexually through mitosis
In meiosis, the greatest amount of genetic variation is produced in offspring that reproduce sexually, hence option C is correct.
How do organisms reproduce sexually through meiosis?Because the environment is continually changing, sexual reproduction often has an advantage over asexual reproduction.
Increased phenotypic variation, or the physical variety of the organisms, results from higher genetic diversity.
Each gamete has a unique DNA set because of recombination and independent assortment during meiosis. The resultant zygote has a special set of genes as a result.
Genetic variety can be increased by new genes and alleles being created as a result of gene duplication, mutation, or other events.
Therefore, it is possible for novel gene combinations to arise during sexual reproduction.
Learn more about meiosis, here:
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A bird that can easily out complete other birds for its food and that can produce many eggs has high what?
Answer:
Fitness or aptitude
Explanation:
Aptitude (or fitness) is the genotype/phenotype that results in the survival, fertility, and capability of having a mate. It is a way of measuring the individual ability to leave fertile offspring.
Aptitude puts together everything that matters in natural selection. Includes the survival capability, finding a mate partner possibility, producing fertile descendants, and leaving the genes to the next generation. The aptitude of a genotype must be significant for natural selection to act in its favor.
Give an example or describe how WATER QUALITY can be impacted by the Water Cycle in an Aquatic Environment
Answer:
the water cycle can cause some waters that come from a polluted source to be cycled into aquatic enviroment lowering life quality for the inhabitants. at least i think so
Explanation:
Help me please!!!!!!!
4,3 of two the between difference the to sent PaulRegards1,2,4Ode3,
The arthropods with three body sections, three pairs of legs, and one or two pairs of wings are the
Answer:
Insects
Explanation:
Insects are arthropods that have three body segments, three pairs of legs, one pair of antennae, and many have one or two pairs of wings. The three body sections are called the head, the thorax, and the abdomen. Wings and legs are attached to the thorax, the middle section.
Answer:
incet
Explanation:
What are two of the reasons cited for the snail population on society being devastated?
Answer:
snails move slow
Explanation:
abs
How are the diverse living organisms within a biome dependent upon each other and the nonliving parts of their environment? Give specific examples.
I NEED HELP ASAP!!!!!!! ILL MARK YOU AS BRAINLIEST!
What's cycle works together with the carbon cycle
Answer: The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms
Explanation:
Which function of the integumentary system is illustrated in the release of sweat?
Absorbtion
Protection
Sensory Reception
Regulation
Secretion
Both regulation and secretion
Answer:
Secretion
Explanation:
Not completely sure tho, good luck
is such a thing possible?
Answer:
Wait- so this bear can smell me ( ಠ U ಠ )
Explanation: ●_●
Answer:
PFFFFFT ok then
Explanation:
^﹏^ ~juno
A train travels 67 km, north along a straight track in 39 minutes. What is the train's average
velocity in kilometers per minutes?
A. 28Km/mins
B. 1.72Km/mins
C. 0.582Km/mins
D. 106 Km/mins
Answer:
B. 1.72Km/mins
Explanation:
The topic is Mathematics, not Biology but okay!
All you have to do is 67/39 which equals 1.72km/mins.
This is because you have to work out the average speed in kilometres per minute. 39/39 = 1 minute
I hope this helps you!! ^-^
Can someone help me with question 1 pls:)
answer:
c d e
good luck :)
hopefully, this helps
have a great day !!
Orbital Wave
is a orbital wave in which particle of the medium move in closed circles as the wave passes?
Answer:
Yes, It is.
Explanation:
Orbital Wave:
A progressive wave in which particles of the medium move in closed circles.
How is carbon moving between the air and found decreasing
Answer:
It moves with the help of hydrogen
True or false: All herbivores are autotrophs.
Answer:
false
Explanation:
Autotrophs, organisms that produce their own food, are the first trophic level. These include plants and algae. Herbivores, which eat autotrophs, are the second trophic level. Carnivores, organisms that consume animals, and omnivores, organisms that consume both plants and animals, are the third trophic level.
One day you experience violent thunderstorms followed by a few days of colder weather. Which type of front most likely moved through your area? occluded front stationary front warm front cold front
Answer:
d
Explanation:
The whether occurrence as described in the question is caused by the cold front.
What is a front?In discussing about weather, a front refers to a region in which there is a transition between air masses on the earths surface. The occurrence of various types of front is the reason behind different types of whether patterns.
The violent thunderstorms followed by a few days of colder weather is caused by a cold front.
Learn more about whether fronts: https://brainly.com/question/16357973?
Question 13
What is condensation? Describe a way in which it can affect Earth systems.
12pt v
Paragraph
IB в I o Ауду т?у а
Answer:
Condensation is a process in which water vapors changed into liquid state.
Explanation:
Condensation is a process in which water that is present in the vapors form changed into liquid state. Condensation greatly affect Earth systems because this process is responsible for the precipitation on the earth. Condensation occurs in the atmosphere when warm air rises in the atmosphere, cools and unable to hold water vapor. As a result, water vapors condenses to form cloud droplets that falls in the form of rainfall.
Olive oil, a liquid at room temperature, is an example of what type of fatty acid?
saturated
wax
unsaturated
Starch
Explanation:
it is a unsaturated fatty acid.
Foods rich in unsaturated fatty acids, such as olive oil (oleic acid, an eighteen-carbon unsaturated fatty acid, is a major component) tend to be liquid at room temperature.
Hope this helps!
Brainlest?
Put the phases of cell division (sex cells ) in order there are 12
Answer:
Prophase I, prometaphase, metaphase I, anaphase I, telophase I, and cytokinesis, interphase, prophase II, prometaphase II, metaphase II, anaphase II, telophase II, and cytokinesis.
Explanation:
Prophase I, prometaphase, metaphase I, anaphase I, telophase I, and cytokinesis, interphase, prophase II, prometaphase II, metaphase II, anaphase II, telophase II, and cytokinesis are the 12 phases of cell division that occurs in the sex cells of human body. These double phases allow the sex cells to produce four daughter cells from a single parent cell but the chromosomes number is half in each daughter cell.
What reacts with sulfur dioxide in
the atmosphere to form acids that
return to the surface as either dry
or wet deposition?
Answer:
Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
In a process called transpiration, plants get rid of excess water through pores in the leaves called
stomata. This excess water is then released into the atmosphere as part of the water cycle. Which of
the following terms best describes how the released water enters the atmosphere?
O precipitation
condensation
O capillary action
O evaporation
Answer:
evaporation
Explanation:
Answer:
Evaporation
Explanation:
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One city is at a higher latitude than another city. How does this make the two climates different?
A) The higher the latitude, the lower the temperature.
B) The higher the latitude, the higher the temperature.
C) Latitude does not affect precipitation, but changes the temperature.
D) Latitude does not affect temperature, but changes the precipitation.
Answer: D) Latitude does not affect temperature, but changes the precipitation.
Explanation: Hope it helps :)
Answer:
answer is b
Explanation:
Who established Buddhism?
A. Confucius
B. Siddhartha Gautama
C. Laozi
D. Ashoka
Answer:B
Explanation:
Answer:
B. Siddhartha Gautama
Explanation:
Siddhartha Gautama, the founder of Buddhism who later became known as “the Buddha,” lived during the 5th century B.C. Gautama was born into a wealthy family as a prince in present-day Nepal.
explain reproduction in hydra
Answer:
Budding
Explanation:
The common asexual method of reproduction by hydras is budding. Buds originate at the junction of the stalk and gastric regions. The bud begins as a hemispherical outpouching that eventually elongates, becomes cylindrical, and develops tentacles. The bud then pinches off and a new individual becomes independent. Buds are produced every two to three days under favorable conditions. Following unfavorable conditions, such as injuries or periods of scarce resources, hydras occasionally reproduce through transverse and longitudinal fission.
Calculate the population density for 30 an area of 3 km
Answer:
10 people per Km
Explanation:
im smart
what is osmosis? Explain in detail with examples?
movement of water molecules from a dilute solution to a concentrated solution
Explanation:
I put a process by which molecules of solventtend to pass through through a semi permeable membrane from a less concentrated into more concentrated one
example :feeling thirsty after having salty food