The speed of a wave with a frequency of 2 Hz and a wavelength of 87 m will be 174 m/s. Thus, the correct option will be D.
What is Wave speed?Wave speed can be defined as the magnitude of distance which the wave travels in a given amount of time, such as the number of meters which it travels per second of time.
Wave speed is a scalar quantity as it has only magnitude and no direction. Speed of a wave depends upon the medium in which the wave travels.
The wave speed is directly proportional to the wavelength of the wave and the frequency of the wave. Speed of a wave is the product of its wavelength and frequency. The expression for wave speed is as follows:
Speed of wave = Wavelength × Frequency
Speed of wave = 87 × 2
Speed of a wave = 174 m/s.
Therefore, the correct option will be D.
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Which of the following is a MECHANICAL wave vibration? * O Sound waves O Light waves O Radio waves O Reflection
Answer:
An example of vibration by mechanical waves is sound waves.
Explanation:
Mechanical waves are those capable of transmitting energy, which can propagate in the same direction, resulting in an alteration of the mechanical properties of a material. As a result of this, the material presents changes in the energy of its atoms and molecules.
Sound waves are mechanical waves, which require a medium for transmission and act as elastic waves capable of propagating longitudinally, producing a vibration.
Sound propagates and can produce waves in water or vibrations that reach the eardrum and enable the reception of this sound.
The other options are not correct, because light and radio waves are electromagnetic waves that are transmitted in a vacuum, without producing vibrations. Reflection is a property of light.
Where does digestion start?
digestion starts in your mouth
A car is traveling 5 m/s North, its displacement is
after 9 seconds?
Given parameters:
Velocity of the car = 5m/s North
Time = 9s
Unknown:
Displacement of the car = ?
Solution:
Displacement is the distance traveled in a specific direction. It is a vector quantity with magnitude and direction.
To find displacement use the expression below;
Displacement = Velocity x Time
Input the parameters and solve;
Displacement = 5 x 9 = 45m due North
The displacement of the car is 45m due North
Select the correct text in the passage. Nick owns a grocery store. Identify the various types of roots in his store that are a type of stem. Nick owns a grocery store. Considering the high demand, he orders carrots, ginger, radish and sweet potatoes in excess quantities. Later, a sandwich bar owner contacts him for placing orders for cabbage and lettuce in bulk quantities for his sandwich bar. Now he has almost total control of the cabbage and lettuce market. He also sells potatoes, taros, and other spices like cinnamon in his store,
Answer:
cabbage and lettuce
Explanation:
They are the only types of roots in his store that are a type of stem.
Answer:
Cabbage and lettuce
Explanation:
If you grow crops, like me you would know that Cabbage and lettuce are the stem of there plant. There unlike other plants that grow Off of stems I hope this helps!
Analyze why it would be an advantage to a protein-secreting cell to have ribosomes on the endoplasmic reticulum.
explain how longitude lines were established
Answer: Eratosthenes was the first to propose a system of longitude between 260 - 201 B.C. Greek astronomer Hipparchus was the first to use longitude to define a location (along with latitude). Longitude lines run from the North and South Poles and are measured by one arcdegree. These lines are called meridians. Unlike latitude, longitude was not able to be determined until the 18th century as a result of difficulty. The Royal Observatory in Greenwich, England marks zero degrees longitude. Longitude was accepted after the 18th century after it was able to be determined and measured by mathematics.
Explanation: Hope this helps! If you have any further questions, let me know.
Which of the following is used to describe a chemical reaction?
A. a chemical formula
B. the periodic table
C. and equal sign
D. a chemical equation
Take a break from work and stress and tell me how your day is going! I wanna know :)
Answer:
good, hbu
Explanation:
A bacterium divides through four generations. Each bacterium that forms represents a level of organization called
Group of answer choices
a cell
a tissue.
an organism.
an organ
Answer:
B: A tissue
Explanation:
A group of cells that work together is called a tissue
The top layer of the crust is mostly what type of rock?
A igneous?
A metamorphic?
A sedimentary?
HeLP ASAP
Answer:
b is the correct answer i guess
Answer:
Igneous and Metamorphic covers 95% of the crust but there is a little bit Sedimentary, about 5%
Explanation:
4. Look at the table showing the levels of classification for the giant
anteater. Then create the scientific name for this species. Which of the
following scientific names is written correctly for the anteater?
Kingdom
Phylum
Class
Order
Family
Genus
Species
Animalia
Chordata
Mammalia
Pilosa
Myrmecophagidae
Myrmecophaga
tridactyla
Pilosa Chordata
myrmecophaga Tridactyla
Myrmecophaga tridactyla
Answer:
Myrmecophaga tridactyla
Explanation:
This question involves the level of classification of the Giant anteater. The classification system ranks from kingdom to species. However, living organisms are named according to the BINOMIAL NOMENCLATURE. Binomial nomenclature is a system of naming living organisms as given by Carolus Linnaeus.
This binomial nomenclature, as the name implies, uses two Latin names; one which is the generic name of the organism and the other which is the specific name. Based on the principles that govern this naming system, the GENERIC name must begin with a capital letter while the specific name is written in small letters all through.
Following this principle of binomial nomenclature, the proper scientific name of the Giant anteater is as follows:
Generic name - Myrmecophaga
Specific name - tridactyla
Hence, the scientific name of the Giant ant eater is Myrmecophaga tridactyla.
Did newton say all living things were made of cell
Answer:
No
Explanation:
He improved microscope because he developed a theory that explained how light moved.
Answer:
No, Theodor Schwann said "all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells."
Explanation:
2 native animal species from Florida?
Answer: Florida Panther and American Alligator
what is active transport and what does it require?
Answer:
An active transport is the movement, requiring energy, of ions or molecules across a membrane into a region of higher concentration.
Memory technique:
To help you remember the difference between active and passive energy, think of being active, like playing football or jumping rope. All these things require energy, just like an active transport. Passive transport does NOT require energy.
Which statement correctly describes glucose (C6H12O6)?
It is made of matter and contains twenty-four molecules.
It is an element made of three types of atoms.
It is an atom made up of carbon, hydrogen, and oxygen.
It is a compound made of twenty-four total atoms.
Answer:
d.it is a compound made of twenty-four total atoms
hope this helps :)
Explanation:
Answer:
d.it is a compound made of twenty-four total atoms
Explanation:
edge
A species of bacteria lives in human intestines. The bacteria get food from the person in whom they live, and the person gets vitamins that the bacteria produce. What kind of relationship do these bacteria and humans have?Immersive Reader (5 Points) commensalism parasitism predation mutualism
Answer:
Mutualism.
Explanation:
The bacteria lives in the human intestine and get food from the person while on the other hand, the person gets vitamins that the bacteria produce by consuming food, this type of relationship is known as Mutualism because in this relationship both gets benefit from one another. Mutualism is a symbiotic association in which both the organisms gets benefit from each other.
What insect forages for leaves to fertilize the fungus that it grows for food?
A.Bark beetles
C. Praying Mantis
b. Ladybirds
d. Leaf-cutting ants
Answer:
D bark beetles eat fungus
Explanation:
What organism could complete this food chain? Grass->Grasshopper-> ___->Snake->Hawk
A. Bacteria
B. Algae
C. Mouse
Answer:
C
Explanation:
GRASS=GRASSHOPPER=MOUSE=SNAKE=HAWK.
Scientists crossed two different species of fruit trees. This produced offspring whose fruit had characteristics of each parent.
What is most likely true about the offspring?
the answer is d They will be able to produce offspring.
Definition: This is a process in which water moves through a membrane, from an area of high
concentration to an area of lower concentration.
PLEASE HELP!!
Answer:
Osmosis
Osmosis is a type of simple diffusion in which water molecules diffuse through a selectively permeable membrane from areas of high water concentration to areas of lower water concentration.
Explanation:
Which organisms turn sunlight energy into food?
Group of answer choices
Baleen Whales and Toothed Whales
Krill and Fish
Phytoplankton, Seaweed, Eel and Turtle Grass
Penguins and Pelicans
do you think you can help?
Answer:
D, the atomic number
Explanation:
How are waves repeating patterns?
Answer:
A simple wave model has a repeating pattern with a specific wavelength, frequency, and amplitude, and mechanical waves need a medium through which they are transmitted. This model can explain many phenomena including sound and light. ... Waves can be used to transmit information and energy.
Explanation:
And advancement in technology that helped reduce the amount of solid waste produced was ___.
A.plastic containers
B.compact discs
C.protective packaging
D.modern landfill
Answer:
Advancement in technology that helped reduce the amount of solid waste produced was plastic containers
Answer:
a
Explanation:
Ape-x
Which statement best describes the role of transfer RNA in protein synthesis?
O Transfer RIHA carries a copy of the DNA base sequence to the cytoplasm.
O Transfer RNA matches up amino acids with the base sequence copied from DNA.
O Transfer RNA composes the ribosome on which the protein forms.
O Transfer RNA brings nucleotides to make a copy of the DNA base sequence.
Answer:
Transfer RNA matches up amino acids with the base sequence copied from DNA.
Answer:
B.Explanation:
Edg. 2020 other guy is correct
Which scientist was the first to practice the scientific method we use today?
Archimedes
Aristotle
En Hedu'Anna
Answer:
Aristotle
Explanation:
I took the test and got a 100
Aristotle
I took the quiz
This is NOT a part of the phosphorus cycle.
phosphate is absorbed from the soil by plants
atmospheric phosphate
phosphate in plants is eaten by animals
Phosphate is incorporated into sedimentary rocks
Answer:
Many plant crops need more phosphorus than is dissolved in the soil to grow optimally. In addition, crops are usually harvested and removed – leaving no decaying vegetation to replace phosphorus. Therefore, farmers replenish the phosphorus ‘pool’ by adding fertilisers or effluent to replace the phosphorus taken up by plants.
Explanation:
Atmospheric phosphate is NOT a part of the phosphorus cycle. thus, option B is correct.
What is the phosphorus cycle?The phosphorus cycle is a biogeochemical cycle that deals with the movement of phosphorus in the form of different compounds.
The soil absorbs the phosphate salt dissolved in water, although the amount of phosphorus present is relatively low.
Phosphorus is absorbed by the animal from plants or from plant-eating animals.
When plants and animals die, a microorganism decomposes them, which is then recycled into the soil and water. Soil and water end up in sediments and rocks, where they weather and release phosphorus.
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The energy-producing, or energy-storing, molecule is called
a.ATO
b.glucose
c.protein
Answer:
The anwser is B
Explanation:
Which of the following is a not component of lipids?
carbon chains
nucleotides
fatty acids
glycerol
NUCLEOTIDES.... is not a component of lipids..
Thanks..
Nucleotides are not a component of lipids.
WHAT ARE LIPIDS:
Lipids are one of the four biomolecules we have in nature. Structurally, lipids are made up of monomers called FATTY ACIDS and GLYCEROL. Each of these monomers are made up of long chains of carbon, meaning that lipids also have long chains of carbon.However, nucleotides are monomers of another biological molecule called nucleic acids and hence, cannot be a component of lipids.
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Which phrase describes a typical feature of plains?
usually have a high relief
O have steep sides
usually have a high elevation
can be interior
Answer: the answer is D or can be interior
Explanation: because I took the test and I picked have Steep sides and it's wrong hi relief is wrong and high Evolation is wrong so in conclusion D is your answer
Hope this helps!
The phrase that describes a typical feature of plains is that it can be interior. Thus, the correct option for this question is D.
What do you mean by Plains?Plains may be defined as a type of landform that has a broad area of relatively flat land. These are one of the most common types of landforms on the earth's surface. They significantly cover more than one-third of the world's land area. Plains exist on every continent.
According to the context of this question, mountains are landforms that usually have a high relief and a high elevation. A canyon has steep sides along with narrow valleys. So, plains are the landforms that significantly have an interior and flat land.
Therefore, the phrase that describes a typical feature of plains is that it can be interior. Thus, the correct option for this question is D.
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