Answer:
318,6 ms-1
Explanation:
Como sabemos que la relación entre la velocidad del sonido en el aire y la temperatura viene dada por;
V = 331√T / 273
Dónde;
V = velocidad del sonido
T = temperatura en kelvin = (-20) + 273 = 253 K
V = 331√253 / 273
V = 318,6 ms-1
Earth's northern hemisphere generally experiences warmer temperatures in July than it does in January. Which statement explains why?
A. Sunlight shines more directly on the northern hemisphere in July.
B. Sunlight in the northern hemisphere is more spread out in July.
C. The interior of the Earth heats the northern hemisphere more in July
D. The northern hemisphere is tilted away from the Sun in July
Answer:
D
Explanation:
The northern hemisphere is tilted away from the Sun in July causing Earth's northern hemisphere commonly founds warmer temperatures in July than it does in January, hence option
Why are seasonal changes occur on Earth?When Earth is tilted over its axis, this causes seasons to occur on Earth during various months, this movement around the Sun is the major cause of seasons on Earth.
In July month, the northern half of Earth tilts toward the sun, temperature of the land increases, which heat up easier than the oceans. While in January, it's difficult for the sun to heat the oceans, observing cooler average global temperatures, although the Earth is closer to the sun.
Therefore, July experiences warmer temperatures because the northern hemisphere is tilted away from the Sun in July.
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What causes day and night
earth rotaion so i need points
why are spring floods common in rivers where the headwaters are in an area of cold, snowy winters?
Answer:
The snow melts into water, causing floods. Coupled with the rainfall that is often associated with spring, water overflows.
Explanation:
HELP! Label the image of the DNA with the correct name of the part!
Answer:
The top is Phosphate
The orange is Deoxyribose Sugar
The green is Adenine
The blue is Guanine
I dont know the red one sorry
Explanation:
What are four conditionsrequired for fossilizationof an organism?
Answer:
The organism generally must have hard parts such as shell, bone, teeth, or wood tissue; the remains must escape destruction after death; and the remains must be buried rapidly to stop decomposition. This does make the fossil record biased because animals with soft bodies are less likely to form fossils.
Explanation:
I hope that this helped you ;)
how does a plant cell look under a microoscope
Plant cell under the microscope
The structure and shape of the cell are more rigid when compared to animal cells as plant cells have a rigid cell wall that provides a more solid structure to the plant cell. The shape of the plant cell is usually rectangular in shape even though some plant cells have a triangular shape.i hope it helps you:-):-)
What are three things you learned about the
planets and their moons from the explorations of Curiosity and other satellites?
Answer:
I agree with the other person that answered...
Explanation:
I will give you a fun fact though, stars are made up of gasses and energy and Pluto isn't a real planet :)
1. What is true of two organisms that are in the same phylum?
A. They are likely the same species too.
B. They are more closely related than two organisms who are the same genus.
C. They are more closely related than two organisms who are in the same order.
D. They are less closely related than two organisms who are in the same class.
Fill in the chart for the three different cities. Use the graph below to find how far
each city is from the epicenter
If green house emissions do not decrease, what will happen to global climate?
Predict:
Observe:
Explain:
Answer:
If green house gas emissions do not decrease the globe will increasingly get warmer. The sun's heat enters the atmosphere, some heat will escape, some will be trapped. Carbon dioxide causes the heat to remain in the atmosphere. Without carbon dioxide Earth would very cold, but with the use of fossil fuels and other unsustainable resources we are releasing too much carbon dioxide in the atmosphere. This is causes way too much heat to remain trap. And this is what is causing global warming
Name three elements used to date fossils with absolute dating
Answer:
Among the best-known techniques are radiocarbon dating, potassium–argon dating and uranium–lead dating. By allowing the establishment of geological timescales, it provides a significant source of information about the ages of fossils and the deduced rates of evolutionary change.
Explanation:
- Eijiro
Which organ breaks down fats. look at the diagram of the digestive system.
Which organ breaks down fats?
A
B
C
D
Answer:
a
Explanation:
which era was blue ridge in
"________" she said, collapsing with exhaustion. "I'm glad that's over with!"
a Hey!
b Oh, no!
c Phew!
d Wow!
Option C. Phew!
Have a great day! :)
During meiosis, homologous chromosomes exchange genetic material. This exchange of
genetic material -
Answer:
During meiosis, homologous chromosomes may exchange genetic material during a process called "crossing over."
Messages sent by the brain to the endocrine system pass
O A. from neurons to neuroendocrine cells via neurotransmitters
B. from neuroendocrine cells to neurons via hormones
C. from neuroendocrine cells to glands via action potentials
O D. from neurons to neuroendocrine cells via action potentials
Answer:
c. from neuroendocrine cells to gland via action potentialpituitary gland is a neuroendocrine gland which release hormones for the production of other glands
also called as master gland
ANSWER FOR BRAINLIEST AND 70 POINTS!!
Answer:
Female
Have a great day!
Answer:
male
Explanation:
the last two chromosomes the x is bigger than the y which shows that it's a male if it was a female both xy would be the same height
What does Mufasa mean by the circle of life? Make a diagram that shows the circle of life. Represent it this way: sun –> producer –> primary consumer –> secondary consumer-> decomposer
PLEASE HELP
Answer:
Sun --> carrot --> rabbit --> wolf --> earthworm
5. Write the levels of organization in order from MOST SIMPLE to MOST COMPLEX. Use the words: organism, organ, cell, tissue, and organ system.
Answer: The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism
Answer:
cell
tissue
organ
organ system
organism
Explanation:
Cells are most simple, organism is most complex
which student correctly identified the outcome of meiosis?
Think of an object, person place at home that functions similar to the vacuole.
Annswer:
a egg
Explanation:
This is the answer because vacoules are like cells and eggs are like cells and yeah.
Sorry about the explanation I have to get points. But here are comparisons between the 3.
Identify the plant phylum based on the description.
A tree that can be found in the mountains and produces seeds in cones is a type of
.
A tree that produces blossoms that can be fertilized and develop into fruit is a type of
.
This low-lying plant that requires damp surfaces and does not have a system to transport water is a
.
Answer:
Conifer
Flowering plant
Moss
Answer:
Can confirm
Explanation:
I’ll pay 20$ if you answer right now.
Questions: figure 3 shows plant cells from either the stem or the leaf.
a. Describe what part of the plant is represented in figure 3.
b. What is structure A?
c. What process occurs in structure A?
Answer:
a. that is a section of an embryo of a plant. it is part of the plant's leaf, not the stem
b. its the group of cells called chloroplasts.
c. the process that occurs in structure a is called photosynthesis
Explanation: fr
11. Which of these claims is most likely true of two species that share a recent common ancestor?
A. The two species have different developmental patterns.
B. The two species share DNA sequences.
C. The two species have similar arms and legs.
D. The ancestors of each species looked very different.
Answer:
B. The two species share DNA sequences.
Explanation:
Although we can use all of these, DNA supports the determination of common acestory the best.
Why do radio telescopes tend to produce blurry images? ASAP
Answer: When light passes through an opening it will dissfract. The smaller the opening, the blurrier the image will be
Explanation:
In humans, brown eyes are generally dominant over blue eyes. Find the phenotypic and genotypic ratios of a cross between two heterozygous brown-eyed people. Choose This is a required question
Answer:
Brown eyed genotype: Aa (eterofzygous) or AA (homofzygous)
The genotypes derived from the cross are: AA, Aa, Aa, aa
The phenotypes are: 3 with brown eyes and 1 with blue eyes (aa)
The phenotypic ratio is 3:1 (brown eyes: blue eyes) and the genotypic ratio is 1:2:1 (dominant homozygous: heterozygous: recessive homozygous).
What happens in a heterozygous cross?In humans, the allele for brown eyes (B) is dominant over the allele for blue eyes (b). Heterozygous individuals, who carry one copy of each allele (Bb), will have brown eyes.
When two heterozygous brown-eyed individuals (Bb) cross, the possible genotypes of their offspring are:
BB (brown eyes): 25% chance (homozygous dominant)
Bb (brown eyes): 50% chance (heterozygous)
bb (blue eyes): 25% chance (homozygous recessive)
So, the genotypic ratio of the offspring is 1:2:1 (BB:Bb:bb).
As for the phenotype, the only possible one is brown eyes and it occurs in 75% of the offspring (25% BB + 50% Bb)
Therefore, the phenotypic ratio of the offspring is 3:1 (brown eyes: blue eyes)
It's worth noting that while this is the typical outcome of crosses involving the eye color genes, it's not universally accurate, as other factors and genes might have an influence on the phenotype. Additionally, in reality, eye color is a complex trait and many other genes are involved not just B and b, so the dominance is not always that clear.
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What are some examples of natural hazards that can occur quickly with little or no warning?
Answer:
landslides
Explanation:
Thunder storm
Wildfire
Eruption
define polymer
simple
Answer ASAP
Answer:
A polymer is a bunch of monomers put together in simplest terms.
In a cross between two heterozygous tall and purple flowers (TtPp x TtPp), what would the
ratio be?
Answer:
9:3:3:1
Explanation:
This question involves two different genes coding for height and flower color respectively. The first gene posseses allele T (dominant) and t (recessive) while the second gene possesses allele P (dominant) and p (recessive).
According to this question, two heterozygous tall and purple flowers are crossed i.e. (TtPp x TtPp). Each parent will produce the following gametes combination:
TtPp - TP, Tp, tP, tp
Using these gametes in a punnet square, the following proportion of offsprings will be produced:
T_P_ (tall, purple) = 9
T_pp (tall, white) = 3
ttP_ (short, purple) = 3
ttpp (short, white) = 1
Hence, the ratio of this cross is 9:3:3:1
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Answer the question and then find key word(s) from the question that helped you get the answer.
Answer: I think it’s b
Explanation: