the frequency of a wave in a stretched string depends on the length L, tension T and linear density m with dimension ML-1 . deduce the formula for f in terms of L , T and M using dimensional analysis
Answer:
[tex]f = \frac{1 }{L}\sqrt{\frac{T}{m} }[/tex]
Explanation:
Let the frequency ,
[tex]f = L^{x}T^{y}m^{z}[/tex]
Now the unit of frequency is hertz = s⁻¹ = T⁻¹ where T is time, tension T = kgm/s² = MLT⁻¹ and linear density m = kg/m = ML⁻¹.
So,
[tex]T^{-1} = L^{x}[MLT^{-2} ]^{y}[ML^{-1} ]^{z}\\[/tex]
collecting the like bases, we have
[tex]T^{-1} = [L^{x + y -z}][M^{y + z} ][T^{-2y} ] \\L^{0} M^{0} T^{-1} = [L^{x + y -z}][M^{y + z} ][T^{-2y} ][/tex]
Equating powers on both sides, we have
x + y - z = 0 (1)
y + z = 0 (2)
-2y = -1 (3)
From (3), y = 1/2
From (2), z = -y = -1/2
Substituting y and z into (1), we have
x + y - z = 0
x + 1/2 - (-1/2) = 0
x + 1/2 + 1/2 = 0
x + 1 = 0
x = -1
So,
[tex]f = L^{x}T^{y}m^{z}\\f = L^{-1}T^{\frac{1}{2} }m^{\frac{-1}{2} }[/tex]
[tex]f = \frac{1 }{L}\sqrt{\frac{T}{m} }[/tex]
What percentage of those struck by
lightning, live to tell about it?
of every ten people struck by lightning, nine will survive and tell the tale.
Match each gymnosperm to its correct description. plzzz help me reeee
Answer:
Explanation:
Ginkgoes lose their leaves in autumn
Cycads look like a palm tree
Gnetophytes grow in deserts and rain forests
Conifers make up the largest group of gymnosperms.
Each gymnosperm is matched according to their correct description
Ginkgoes lose their leaves in autumnCycads look like a palm treeGnetophytes grow in deserts and rain forestsConifers make up the largest group of gymnosperms.What are Gymnosperms?Gymnosperm is a seed-producing plant which do not produce flowers or fruits and have uncovered seeds. These are born in cones and are not visible until maturity.
There are several characteristics of Gymnosperms. They are:
1. They are autotrophic, photosynthetic plants which tend to conserve water.
2. They have vascular system which includes roots, xylem, and phloem that is used for the transportation of water and nutrients.
3. The ovules and seeds of gymnosperms develop on the scales of cones which is in enclosed chambers called ovaries.
4. They are older than angiosperms on the basis of evolution.
They are divided into four classes like
Ginkgoes Cycads Gnetophytes ConifersThus, each gymnosperm is matched according to their correct description
Ginkgoes lose their leaves in autumnCycads look like a palm treeGnetophytes grow in deserts and rain forestsConifers make up the largest group of gymnosperms.Learn more about Gymnosperms, here:
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How are ions such as phosphate absorbed by plant roots?
7. Which of the following is not an example of an abiotic factor?
O Water
O Soil
O Disease
O Air
Please help
Answer:
Disease
Explanation:
Water, Soil and Air are all biotic except for disease.
Why type of cells in your body are created through the cell cycle and mitosis?
Mitosis is a way of making more cells that are genetically the same as the parent cell. It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged. Hope I helped! ^^
__________________________________________________________
有糸分裂は、親細胞と遺伝的に同じであるより多くの細胞を作る方法です。それは胚の発達において重要な役割を果たしており、私たちの体の成長と発達にとっても重要です。有糸分裂は新しい細胞を生成し、古い、失われた、または損傷した細胞を置き換えます。私が助けてくれたらいいのに！ ^^
Which protists contain both chloroplasts and eyespots?
A .amoeba and paramecia
B. volvox and paramecia
C. euglena and amoeba
D. euglena and volvox
.
D. Euglena and volvox contain both chloroplasts and eyespots.
What are protists?
Protists are single-celled microorganisms that belong to the kingdom Protista. They are unicellular organisms that are not classified as bacteria, fungi, or animals, and are the simplest of the eukaryotes (organisms with a true nucleus and other membrane-bound organelles). Protists are found in a wide variety of habitats, from freshwater to marine environments, and are important for their role in the food chain, as well as for their impact on human health.
Protists come in a wide range of shapes and sizes, from amoeba-like organisms that can change shape, to algae with chloroplasts, to parasites that can cause diseases in humans and other animals. Some protists can move on their own, while others are immobile. Some can reproduce asexually, while others reproduce sexually. Despite their diverse forms and functions, all protists are considered to be part of the same kingdom because of their shared characteristics and evolutionary relationships.
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If you wanted to find an ant's stomach, where would
you look?
a. Inside its head
b. Inside its cephalothorax
c. Inside its thorax
d. Inside its abdomen
Answer:
d. Inside its abdomen
Explanation:
Hope this helps!
Which amino acids are coded for from the DNA sequence TACCAGCCA?
methionine, valine, and glycine
methionine, glutamine, and alanine
methionine, valine, and aspartic acid
arginine, histidine, and cysteine
Where do the instructions for building a protein originally come from?
tRNA
rRNA
DNA
mRNA
A _______________ is composed of a series of amino acids.
Molecule
Protein
Nucleotide
Cell
Explanation:
DNA
The instructions for building a protein originally come from DNA, which is the store for all hereditary information.
A protein is composed of a series of amino acid.
What happens during the pathway of glycolysis?
A. Glucose is broken down into private
B. Carbon dioxide is produced
C. More ATP is consumed than is produced.
D. Lactic acid is produced
Answer:
the correct answer is A :Glucose is broken down into pyruvate
Answer:
If I'm correct, the glucose is broken down into pyruvate and energy.
Explanation:
I hope this helps! ^^
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Suppose the phloem of a seed plant is damaged and does not function properly.
How will this most directly affect the plant?
Answer:
Food will not be carried away from the leaves
Explanation:
design your own, you can use the Browse feature to attach and upload your document. 5. Design your own experiment based on one of your questions from question 1, above. Include the question, hypothesis, independent and dependent variables, and safety precautions. 6. What are three major branches of Earth science?
Answer:
three major branches of earth science are Geology, oceanography, meteorology.
What's the role that oysters play in keeping the ratio of floating algae to sea floor algae levels of the bay healthy
Answer:
Oysters were keeping the nutrient levels relatively stable in the bay by filtering the nutrient sewage, animal waste, and fertilizer that was running into the bay.
Explanation:
What do we call an organism that is not native to an environment, but is able to thrive anyway?
Answer:
An invasive species
Explanation:
Invasive species come from other environments, many times on accident, but usually thrive so much that they end up taking over and starving other native creatures by taking the resources. Hope this helps! (Brainliest appreciated :))
How does an organism obtain CO2, H2O, and energy
to undergo photosynthesis?
Answer:
To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.
Explanation:
By taking in water (H2O) through the roots, carbon dioxide (CO2) from the air, and light energy from the Sun, plants can perform photosynthesis to make glucose (sugars) and oxygen (O2).
What would happen if there was too much Carbon Dioxide in the atmosphere? What if there were no processes to pull Carbon
Dioxide out of the atmosphere?
The relationship that occurs between an orchid attached on a narra tree could be
classified as Commensalism and Parasitism. True or false?
Answer:
Yes, it's True
Explanation:
A parasitic relationship helps one of the species involved in the relationship, but harms the other organism in the process of it growing. It is a symbiotic relationship and would be classified as Commensalism. Most of the orchids are epiphytes, so they tend to grow on other plants. hope you understand. Fighting!
The relationship that occurs between an orchid attached on a narra tree could be classified as Commensalism. Thus, the given statement is true.
What is Commensalism?Commensalism is a long-term biological interaction or symbiosis in which the members of one species gain benefits which help them in survival while those of the other species are neither benefitted nor are harmed from the association.
In contrast with mutualism, in which both the organisms benefit from each other and amensalism, where one species is harmed while the other species is unaffected and that of parasitism, where one species is harmed and the other species benefitted.
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anybody know how to do this?
Answer:
Sorry
Explanation:
Sorry I don’t understand to so I can’t help you
Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow. What is this an example of
Answer:This is an example of asexual reproduction.
Explanation:
Reproduction is defined as the ability of living organisms to produce offspring, that is, new individuals of their type. Living organisms have developed many methods of reproducing. These can be either ASEXUAL or SEXUAL.
Asexual reproduction: In asexual reproduction, an individual produces an offspring by itself, that is, only one parent is present. This type of reproduction is common among flowering plants. Examples of asexual reproduction includes:
--> Fission
--> Budding
--> Spore formation
--> Fragmentation and
--> Vegetative propagation.
The sweet potato vine is reproduced by an asexual means known as vegetative propagation. Here, a new plant grows from any portion of an old one other than the seeds. When stem cutting are taken from the vine, new storage roots are formed within few days.
Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow which is an example of - Asexual reproduction.
Asexual reproductionis a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.Examples of asexual reproduction include: Fission Budding Spore formation Fragmentation and Vegetative propagation.In the given scenario sweet potato is cultivated by vegetative propagation.Brady takes stem cuttings from the vines, which then root and form new storage roots.Sweet potatoes are relatively easy to propagate by rooting vine cuttings directly in the ground or in a well-drained rooting mediaThus, The given case shows an example of - asexual reproductions.
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Of the three states of matter -- solid, liquid, and gas -- which one exerts the highest pressure on its container, and why?
Answer:
gas because its going super fast and free
Explanation:
what is combination reaction?
COMBINATION REACTION:
Combination reaction is a reaction where two or more elements or compounds combine to form a single compound. Such reactions are represented by equations of the following form: X + Y → XY. The combination of two or more elements to form one compound is called combination reaction
An example could be lithium reacting with sulfur to give lithium sulfide. When magnesium burns in air, the atoms of the metal combine with the gas oxygen to produce magnesium oxide.
Choose which statement best describes an element.
A. Anything that takes up space
B. A pure substance that cannot be broken down into other substances by chemical means.
C. Water
D. Atom has a nucleus with neutrons and protons in it.
Answer:
B
Explanation:
Elements are pure substances that cannot be broken down into other substances by chemical means .
Does mass alone determine whether an object will float or sink? Explain
Answer:
yes because if the mass is heavy it gonna sink, if its light its gonna float
Explanation:
Please help only 2 questions, multiple choice
1. How many kinds of nitrogen bases does a DNA molecule have?
A. 2
B. 3
C. 4.
D. 1
Answer:
4.
Explanation:
Adenine, Thymine, Cytosine, and Guanine
(In RNA Thymine is replaced with Uracil)
Which geological feature would most likely occur at this boundary? (the plates are the same density.)
A) mid-ocean ridge, rift vallyes
B) earthquakes
C) volcanos
D) mountain chains
Answer:
a
Explanation:
If a strand of DNA has the nitrogen base sequence, GCTAGATGCG, what will be
the sequence of the complementary strand?
Answer:
CGATCTACGC
Explanation:
The complementary strand of DNA to GCTAGATGCG is CGATCTAGCT.
The nitrogen bases in DNA are complementary to each other. This means that adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C).
The strand of DNA GCTAGATGCG has the following sequence of nitrogen bases:
G - guanineC - cytosineT - thymineA - adenineG - guanineA - adenineC - cytosineG - guanineThe complementary strand of DNA will have the following sequence of nitrogen bases:
C - cytosineG - guanineA - adenineT - thymineC - cytosineT - thymineG - guanineC - cytosineThe complementary strand is created by pairing the nitrogen bases in the original strand with their complementary bases. So, the guanine in the original strand pairs with the cytosine in the complementary strand, the cytosine in the original strand pairs with the guanine in the complementary strand, and so on.
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What macromolecules would you find in Blazin' wings and celery?
All multicellular algae are what?
Answer:
Algae (singular: alga) are photosynthetic, eukaryotic organisms that do not develop multicellular sex organs. Algae can be unicellular, or they may be large, multicellular organisms.The multicellular algae develop specialized tissues, but they lack the true stems, leaves, or roots of the more complex, higher plants.
Explanation:
Which organelle is the location where mRNA is translated into a protein?
Answer:
its ribosomes. In eukaryotes, mature mRNA molecules must leave the nucleus and travel to the cytoplasm, where the ribosomes are located.
Answer:
ribosomes
Explanation:
