Answer:
Answer:
safe speed for the larger radius track u= √2 v
Explanation:
The sum of the forces on either side is the same, the only difference is the radius of curvature and speed.
Also given that r_1= smaller radius
r_2= larger radius curve
r_2= 2r_1..............i
let u be the speed of larger radius curve
now, \sum F = \frac{mv^2}{r_1} =\frac{mu^2}{r_2}∑F=
r
1
mv
2
=
r
2
mu
2
................ii
form i and ii we can write
v^2= \frac{1}{2} u^2v
2
=
2
1
u
2
⇒u= √2 v
therefore, safe speed for the larger radius track u= √2 v
Which two types of RNA are joined together by base pairing a codon with an anticodon ?
A- tRNA and rRNA
B- mRNA and rRNA
C- tRNA and itself
D- mRNA and tRNA
Answer:tRNA (translate rna) and mRNA(messenger rna).
Explanation:
What is a specific example of competitive advantage exhibited by Darwin’s finches?(1 point)
Birds have one of two forms of the HMGA2 gene.
Female finches mated with males that had similar-sized beak
All of the finches evolved from one ancestral species and adapted to their specific niche.
Medium ground finches with small beaks survived multiple droughts.
Answer:
Explanation:
All of the finches evolved from one ancestral species and adapted to their specific niche. of them evolved from one ancestral species, which colonized the islands only a few million years ago.
Darwin's finches, which was residing in the Galapagos archipelago and Cocos island, constitute an iconic model for studies of speciation and adaptive evolution. All of the finches evolved from one ancestral species and adapted to their specific niche.
What are the characteristics of Darwin's finches?The evolutionary history of Darwin's finches is identified by a gene that explains variation in beak shape within and among species.
The major factor influencing the survival of the medium ground finches is weather and the availability of food.
As all of the finches evolved from a single ancestral species and adapted to their specific niche, it is a specific example of competitive advantage exhibited by Darwin’s finches.
Thus, the correct option is C.
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haemoglobin is presented in........................... cells
Carbon in the atmosphere (CO2)
Carbon in plants and animals
It must move through at least 5 different living things (plants/animals) - be sure that the plants/animals would actually interact with each other in nature (ex no african lions eating arctic foxes) this may require a bit of research.
Extra credit - show it becoming fossil fuels and the fossil fuels being burned to release CO2 back into the atmosphere.
In plants/animals- either how its stored in the plant/animal then the plant/animal being eaten or the steps of cellular respiration
In plants- the steps of photosynthesis (how it goes from being CO2 to glucose)
Paragraph / written story
PLEASE HELP, I WILL MARK BRAINIEST
what determines an atom's reactivity?
#1. how many protons the atom contains
#2. how many energy levels the atom contains
#3. whether the atom is a metal or a non-metal
#4. how many valence electrons the atom contains
Answer:
D) How many valence electrons the atom contains.
Explanation:
This is the only closest one
because the number of electrons in the outermost shell is the correct answer
the evolutionary relationship among organisms is known as
Answer:
the evolutionary relationship among organisms is known as phylogeny
Please explain, why do we age?
Answer:
According to this theory, aging occurs through small and random damaging events in a cell that add up over time. These damaging events may come from our own metabolism, as the basic mechanism of metabolism sometimes causes damage to molecules within our cells.
Answer:
according to this theory, aging is caused by changes in hormones.
Explanation:
hormones are which are produced by the endocrine system.
completar:
En la de un cuerpo sólido no influye su .
Answer:
Un instrumento musical de cuerpo sólido es un instrumento de cuerda como una guitarra, un bajo o un violín construido sin su caja de sonido normal y que se basa en un dispositivo electromagnético.
Explanation:
Define photosynthesis?
Answer:
PROCESS BY WHICH PLANTS MAKE THEIR OWN FOOD WITH THE HELP OF WATER, MINERAL , CHLOROPHYLL CARBON DIOXIDE IN THE PRESENCE OF SUNLIGHT IS CALLED PHOTOSYNTHESIS.I HOPE IT IS HELPFULWhich type of land has less percolation?\
Farmland
Forests
Grassland
Urban areas
Answer:
cExplanation:
Where, in terms of an ellipse, is the Sun located with respect to the orbit of each planet? Which
one of Kepler's Laws does your answer support?
Answer:
focus
The Sun is at one focus. The planet follows the ellipse in its orbit, meaning that the planet to Sun distance is constantly changing as the planet goes around its orbit. Kepler's Second Law: the imaginary line joining a planet and the Sun sweeps equal areas of space during equal time intervals as the planet orbits.
What is the first indication of a Tsunami?
Answer:
Ground shaking or loud ocean roar
THE BEST ANSWER GETS BRAINLIEST
Why are hydrogen bonding and popularity so important for water molecules?
Answer:
they are so important because the presence of hydrogen bonds also makes water molecules more 'sticky' or in scientific terms cohesive and adhesive. The small charges on the water molecules allows them to stick together which is why water has a 'skin' that small insects can walk on, and also explains why water can be sucked up a straw so easily.
Explanation:
I hope this helps you!
The epicenter of an earthquake is located 6,500 kilometers away from a seismic station. If the first S-wave arrived at this seismic station at 1:30 p.m., at what time did the first P-wave arrive?
Based on the epicenter and the time of the arrival of the first S-wave, the first P-wave will arrive at 1:22 pm.
From the information given, it was stated that the epicenter of an earthquake is located 6,500 kilometers away from a seismic station and that the first S-wave arrived at this seismic station at 1:30 p.m.
Therefore, it should be noted that the first P-wave will have arrived 8 minutes earlier. This will be:
= 1:30 pm - 8 minutes
= 1:22 pm.
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Identify and describe the layers of Earth’s interior.
Which gene determines what letter is used to represent a pair of traits?
Answer:
The dominant gene determines what letter is used to represent a pair of letters.
Explanation:
Example: If brown eyes are dominant (B) and blue eyes are recessive (b) then...
BB means: Brown
Bb: still means brown because there is still a dominant gene
bB: still means brown because there is still a dominant gene
bb: means blue, no dominant gene
Hope this helps!
The controls the materials that enter and
leave the cell.
Help please I’m doing the test. Am I right?
Which of the following should be included in a good conclusion?
Answer:
b? hope this helps have a nice day!
The image shows a facility that converts the energy of moving water into
electrical energy. What is one advantage of using this technology in place of a
coal-burning power plant?
A. It produces more water pollution.
B. It causes no harm to ecosystems.
C. It does not emit greenhouse gases.
D. It is fueled by a nonrenewable resource.
Answer:
C. It does not emit greenhouse gases.
The one advantage of using this technology in a coal-burning power plant is that it does not emit greenhouse gases. Therefore, option C is correct.
How does electrical energy formed from moving water?Electrical energy can be generated from moving water through a process called hydroelectric power generation. Hydroelectric power plants use the kinetic energy of moving water to spin turbines, which in turn generate electricity.
Hydroelectric power generation is a renewable source of energy that produces no carbon emissions or air pollution. It is one of the most widely used forms of renewable energy, providing electricity to millions of people worldwide.
However, the construction of dams and reservoirs can have significant environmental impacts on the surrounding ecosystems and habitats. Hence, option C is correct.
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What is the surface temperature of Barnard's Star in Kelvins? (Astronomy)
Answer:
the answer should be 3,100 kelvin.
Explanation:
its surface has very hot flares causing it to be about 3,000 to 8,000 kelvins. this would mean its surface temperature should be around 3,100.
What were the physical conditions of the Earth? Where is the evidence to support this claim?
Answer:
Water earth fire and rain hurricanes fire tornados etc
Explanation:
There are millions of physical conditions but that's the only ones I could think of.
How does your body respond to an increase in the need for energy----why would you need more energy?
Answer:
Exercise can boost energy levels by raising energy-promoting neurotransmitters in the brain, such as dopamine, norepinephrine, and serotonin, which is why you feel so good after a workout. Exercise also makes muscles stronger and more efficient, so they need less energy, and therefore conserve ATP.
Explanation:
can someone help me with this question
Explanation:
First row (left)
SS
smooth pod shape
First row (right)
Ss
smooth pod shape
Second row (left)
Ss
smooth pod shape
Second row (right)
ss
constricted pod shape
50 points and brainliest
Drag each tile to the correct box. Not all tiles will be used.
Mitosis is a type of cell division. Organize the images below to show the steps of mitosis.
Answer:
The lesson provided all the information, and I got a 100%
Explanation:
*What is the relationship between DNA and gene expression? How do they depend on each other?*
Answer:
Gene expression is the process by which the instructions in our DNA are converted into a functional product, such as a protein. When the information stored in our DNA? is converted into instructions for making proteins? or other molecules, it is called gene expression
Explanation:
DNA makes genetic expression. DNA is a structure located in the nucleus that makes people themselves. DNA is unique to everyone, no two people are exactly the same. The way the DNA is structured and what instructions it was given affect one's genetic makeup.
Cellular respiration uses one molecule of glucose to produce approximately
A. 2 atp molecules
B. 4 atp molecules
C. 32 atp molecules
D. 36 atp molecules
Answer and Explanation; Equation for Cellular Respiration:
C₆H₁₂O₆ + 6O₂ --> 6H₂O + 6CO₂ + 36-38 ATP
Products of Cellular Respiration:
Water, Carbon Dioxide, and 36-38 ATP molecules
The answer is (D) 36 ATP molecules.
A blood sample consists of dead cells that are breaking apart into their basic molecular building blocks. What type of molecule is best suited for identifying the specimen
Answer:
D N A!!!!
Explanation:
have a great day on your assignment
What are some ways that the biosphere interacts with the other three systems?
Answer:
Plants (biosphere) draw water (hydrosphere) and nutrients from the soil (geosphere) and release water vapor into the atmosphere. Humans (biosphere) use farm machinery (manufactured from geosphere materials) to plow the fields, and the atmosphere brings precipitation (hydrosphere) to water the plants.
Explanation:
Answer :Full Answer. A classic example of an interaction between spheres is when a plant (part of the biosphere), takes carbon dioxide from the atmosphere and water (the hydrosphere) through its roots from underground (geosphere) to perform photosynthesis, which provides the plant with food and releases oxygen into the atmosphere.
Explanation:pls give me a branlist
We eat food for energy. What is the source of energy for this food chain?
A) the sun
B) the grass
C) decomposers
D) all the animals
