**visible confusion**
Can you help me please
Answer:
D
Explanation:
DDDDD
When we rewrite the given in a simpler unit we have 7.9 ms-1.
What is dimensional analysis of formulas?By looking at the units of the quantities involved, dimensional analysis is a technique for determining whether a physical equation or formula is right. The essential tenet of dimensional analysis is that the quantities being multiplied or divided in the equation must have units that are equal to the units of the final result.
We know that we have to apply the principles that apply to dimensional analysis in the question and we have that;
m^2.s/m.s^2
= ms-1
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How does a speaker use electrical energy?
A) It turns electrical energy into heat energy.
B) It turns electrical energy into light energy.
C) It turns electrical energy into sound energy.
D) It turns sound energy into electrical energy.
Answer:
C) It turns electrical energy into sound energy.
Explanation:
Answer: c
Explanation:
This is a star map of the constellation Orion. It represents part of the celestial sphere on a specific day, time, and location.
star chart depicting constellations. On the left side of the star map is the declination, ranging from -26⁰ at the bottom of the chart to 34⁰ at the top of the chart in increments of 2⁰. The right ascension begins at 7h and decreases hourly as you move to the right. The larger stars that comprise the constellation Orion are; Rigel with a declination between -10⁰ and 0⁰ and right ascension between 6h and 5h. Alnitak has a declination between -10⁰ and 0⁰ and a right ascension between 6h and 5h. Bellatrix has a declination between +10⁰ and 0⁰ and a right ascension between 6h and 5h. Betelgeuse has a declination between +10⁰ and 0⁰ and a right ascension between 6h and 5h
Public Domain
What are the approximate coordinates of the star Rigel?
5 hours 10 minutes right ascension and -8⁰ declination
5 hours 40 minutes right ascension and -2⁰ declination
5 hours 40 minutes right ascension and 10⁰ declination
6 hours 50 minutes right ascension and 6⁰ declination
5 hours 10 minutes right ascension and -8⁰ declination.
The corn crop in an area is prone to infestation by larvae from moths that feed on the cornstalks and ears of corn. The techniques used by two farmers to protect the corn crop are described below.
Technique A: Sprayed his corn crop with an insecticide. The insecticide is known to kill all honeybee, butterfly, and moth larvae.
Technique B: Used a genetically modified variety of corn. The plant produces an insecticide which selectively kills only the moth larvae as it feeds on the corn.
Which technique is likely to have less of an impact on the environment?
Technique B because it may help humans who consume corn to fight bacteria
Technique A because it kills a broader variety of insects to protect the corn
Technique B because it preserves the harmless insects and targets only the moth larvae
Technique A because insecticide use is better for preserving the environment.
Answer:
Its C
Explanation:
Method A puts a type of spray that kills bees plus butterfly's which would make their population decrease. Which isnt helpful and harms the enviroment a lot. Answer A dosent make sense it may be harmful
Answer: c
Explanation:
I took the quiz
What is the sub-chemichal for sub-sonic nitrogen chemichal element?
Molecular nitrogen (N2) is a chemical element whose structure is composed of
two nitrogen atoms which are tightly bound together
What is an element?An element is a substance which cannot be split into simpler units by an ordinary chemical process.
Below are some examples of elements:
HydrogenHeliumLithiumBerylliumBoronCarbonNitrogenOxygenFluorineSo therefore, molecular nitrogen (N2) is a chemical element whose structure is composed of two nitrogen atoms which are tightly bound together
Complete question:
What is the structure of the chemical element nitrogen?
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HELP PLSSSS ANSWER QUICKLYYY
Which statement would most likely explain why the results of one new experiment did not support an accepted hypothesis?
a.There was a flaw in the experiment’s design or errors when it was conducted.
b.Two different theories about the subject are both true at the same time.
c.The hypothesis was false, and scientists should replace it with a new one.
d.The question that originally inspired the hypothesis was not fit for scientific inquiry.
Select the correct scientific notation form of this numeral using only 2 significant figures. 5,421,200.00 m
Answer:
5.4 × 10^6
Explanation:
here is my question..
Answer:
3.0
Explanation:
Scientists have discovered a colony of potential organisms on the Planet Moby and named them "Maxoids." Read the information below that scientists have gathered on Maxoids and decide whether Maxoids are living or nonliving things. Explain how you came to this conclusion.
Through testing and observation, scientists have recorded the following characteristics of Maxoids. Maxoids reproduce via sexual reproduction. One parent carries the Maxoid eggs for 12 weeks before they hatch. After hatching, juvenile Maxoids continue to grow for seven months. To acquire energy for growth, Maxoids consume a peculiar liquid substance native to the planet Moby. The Maxoids' cells use this energy, as well as large amounts of water, to carry out important functions. The Maxoids are sensitive to changes in internal temperature. Sometimes they dig holes and lay in them to cool down if they get too warm.
The Maxoids are living things because they possess the characteristics of living things.
What are living things?Living things are things which have life in them.
Living things are identified by the characteristics which make them living.
The characteristics of living things include:
Movement - living things are able to move all or parts of their bodyRespiration - living things are able to break down food substances to produce energyNutrition - living things are able to take in food substancesIrritability - living things are able to respond to changes around themGrowth - living things are able to increase in size and massExcretion - living things are able to remove waste substances from their bodiesReproduction - living things are able to produce new ones of their kindConsidering the Maxoids;
They are able to reproduceThey take food in the form of a liquid substanceThey are sensitive to changes in internal temperatureIn conclusion, the Maxoids are living things.
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Where does most fresh water exist?
Answer:
aquifers, ice caps, and glaciers I think
A student has two objects. Object 1 has a mass of 10 g and a volume of 5 cubic centimeters. Object 2 has a mass of 10 g and a volume of 20 cubic centimeters. If both objects are placed in water, which will float and why?
In the redox reaction AgNO3 + Na → NaNO3 + Ag, which element has been
reduced?
The element that has been reduced in the redox reaction \(AgNO_3 + Na NaNO_3 + Ag\) is silver (Ag). A redox (reduction-oxidation) reaction involves the reduction of one element by the gain of electrons and the oxidation of another element by the loss of electrons.
When sodium (Na) loses one electron to generate \(NaNO_3\) in this reaction, sodium changes from its neutral state (with a zero oxidation number) to a positive oxidation state (+1). On the other hand, when silver (Ag) in AgNO3 gets one electron to create Ag, it moves from a +1 oxidation state to a neutral state (with zero oxidation number).
Silver is the element that undergoes reduction in this process because reduction entails a gain of electrons, reducing it from its +1 oxidation state to its neutral state.
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Please help, it's supposed to be done by Friday
Answer:
A
Explanation:
A says that some ofthe other systems have planets
What is the charge on the Cr in Cr2O72-
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
The eye symbol represents Which hazards
Answer:
This one should be REALLY easy for everybody to know but the answer is anything that can pose a hazard to your eyes
Explanation:
Answer:cyclone
Explanation:
A student wants to know how the number of geese in a study area affects the number of parts in their songs. She performs an experiment and records the data in a table.
Which two terms describe this type of data?
A.
Quantitative
B.
Empirical
C.
Theoretical
D.
Qualitative
The two terms that describe this type of data are Quantitative and Qualitative. Therefore, the correct options are A and D.
Data that can be measured and expressed numerically, denoting quantities or amounts, is called quantitative data. In this example, the number of geese is counted and correlated with the number of pieces in their symphony. Instead of being numerical, descriptive and categorical data are called qualitative data. In this example, it is observed and noted how many sections are in the swan songs (descriptive categories).
Therefore, the correct options are A and D.
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Please help it is very easy and hard for me to figure out where the words go will give brainliest !!! And this isn't even chemistry it's the only science option so..
Answer:
the first boxes at the top are pulls and pushes and the three below are the 3 changes and the one under balanced is no change in motion and the circle box beside it is acceleration and I dont know the last three
Say maddie is the best for 100 points-
3. A recent flood in the area has caused many short-term changes to
the ecosystem. Which is a long-term change?
A. Standing water in the streets and sewers
B. Temporary displacement of organisms
C. Permanent change in the landscape
D. Poor water quality in rivers and streams
Answer:
c
Explanation:
While standing water in the streets and sewers (option A) and poor water quality in rivers and streams (option D) may persist for some time after the flood, they are generally considered short-term changes as they can eventually be remedied through clean-up efforts and restoration programs.
Temporary displacement of organisms (option B) can also be considered a short-term change, as organisms will eventually return to their original habitats once conditions improve.
However, a permanent change in the landscape (option C) such as altered river channels, new water bodies, or changes in topography, can have lasting effects on the ecosystem and its inhabitants. These changes may alter habitat suitability, nutrient cycling, and water availability, which can impact the ecosystem for years or even decades to come.
Answer: C
Explanation:
The landscape could be flooded. Houses and buildings may be restricted.
Giving brainliest <3
How does Energy from the Sun reach Earth? Explain in a 5 sentence paragraph or more.
Thx if you help :)
Answer:
In three ways
Explanation:
Through radiation, conduction, or convection. Now, I will leave the paragraph writing up to you.
Hope this helps. :)
I am a circuit with one path. If one of my bulbs goes out all of the other bulbs will go out. One switch will control all of my bulbs. What type of circuit am I?
Series circuit
Parallel circuit
Open current
Alternating current
G
A substance occupies one half of an open container. The atoms of the substance are closely packed but are still
able to slide past each other.
What is most likely the phase of the substance?
gas
liquid
solid and gas
O liquid and solid
Mark this and return
Save and Exit
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Submit
Answer:
Solid and gas
Explanation:
A candle burning is an example of _____.
a physical change
an exothermic change
energy being taken in
an endothermic change
An exothermic change, Because it has heat.
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
does the atom of Hydrogen Flouride have an electric charge?
Answer:
yes
Explanation:
it has a single electron
Answer:
the polar covalent bond, HF.
The more electronegative (4.0 > 2.1) fluorine pulls the electrons in the bond closer to it, forming a partial negative charge. The resulting hydrogen atom carries a partial positive charge.
Explanation:
is (H2O) water a compound of a element? is Ozone a compound of a element? explain. please help me!!
Answer:
H20 is a compound and ozone is a compound to because the got more then u elements in it
Explanation:
Answer:
Water is a compound because it is composed from two hydrogen atom and one oxygen atom. Water is considered a compound because it is made up of more than one element. By definition, a compound is composed of multiple atoms from different elements. Water has 2 hydrogens and 1 oxygen.
A compound is a combination of more than one element.
A molecule is the smallest particle of an element or a compound.
Oxygen(O) is an element.
O2 - is a molecule which is formed by making a double bond with another Oxygen.
O3 - is a molecule as well, which comprises of three oxygens with two single bonds and one double bond. The resonance structure has a partial positive charge on the central Oxygen and partial negative charges on the end oxygens.
Explanation:
"In summary, the modern definition of a compound is a type of molecule consisting of at least two different types of atoms. By this definition, water is both a molecule and a compound. Oxygen gas (O2) and ozone (O3), for example, are substances that are molecules but not compounds."
Before motorized vehicles were invented, what was one of the fastest ways to travel?
idrk why but its for my sci class
Answer:
horse and cart ig lol
Explanation:
char
NEED HELP ASAP!!!!!!!!! PLEASE ANSWER IN 10 minutes or under
What are the two possible benefits of the new plastic bag?
Answer:
The new bag helps food last longer. Less food is wasted, and more money is saved.
Explanation:
PLATO
How is a zygote formed?
Answer:
A zygote is formed from the process of reproduction. The zygote is officially formed when the sperm meets the egg within the fallopian tube, which then creates a fertilized egg.
Explanation:
Answer:
During fertilization, the nuclei of the sperm and the egg fuse to form a single nucleus. This results in the formation of a fertilized egg or zygote.
Explanation:
Or
zygote, fertilized egg is a cell that results from the union of a female gamete (egg, or ovum) with a male gamete (sperm)