Describe the transmission of sound through solids,liquids,and gases.
Answers
I tihink it will help you
Related Questions
Use the information below to answer the following questions.
Cyanobacteria, also known as blue-green algae, are a kind of bacteria found in many lakes. These organisms make their own food through photosynthesis. Small animals including mayfly larvae eat the cyanobacteria, and small fish such as yellow perch eat the larvae. The small fish provide food for larger fish, such as walleye.
Describe a model you could use to show the transfer of energy within the lake ecosystem. In your description of your model, make sure you include the position of each organism identified in the paragraph.
Answers
Answer:
sorry don't know wish I could help
Which terms represents the fixed proportion of elements in a compound
Answers
Answer:
Protons
Explanation:
I'm not exactly sure if this is what your question, but the number of protons is what makes an atom that atom. If you change the number of proton it is now a different atom. You change the number of electrons and get an ion or change the number of neutrons and get an isotope but you can't change the number of protons as you would be changing the elemnt.
Describe the main differences beA human cell has 46 chromosomes. At the end of mitosis, there are two cells, each with 46 chromosomes, for a total of 92 chromosomes split between both cells.
Which statement describes meiosis in a human cell?
At the end of meiosis, there are two cells, each with 46 chromosomes, for a total of 92 chromosomes split between both cells.
At the end of meiosis, there are four cells, each with 23 chromosomes, for a total of 92 chromosomes split between the four cells.
At the end of meiosis, there are four cells, each with 46 chromosomes, for a total of 184 chromosomes split between the four cells.
At the end of meiosis, there are two cells, each with 23 chromosomes, for a total of 184 chromosomes split between both cells. tween meiosis and mitosis.
Answers
Answer:
At the end of meiosis, there are four cells, each with 23 chromosomes, for a total of 92 chromosomes split between the four cells.
Explanation:
During meiosis, a diploid cell (46 chromosomes) replicates its DNA (making 92 chromosomes) then undergoes two cell divisions to generate four haploid cells (23 chromosomes).
These haploid cells are the gametes which, during fertilization, fuse to become a zygote with 46 chromosomes.
Answer:
the person above me is correct.
Explanation:
Prototypes are used to
a. communicate a solution.
b. test the operation of a product.
c. identify a need.
d research a problem.
Answers
Answer:
Test the operation of the product
Explanation:
Explanation: the definition of prototype is
As a verb
“make a prototype of (a product).”
Or noun
“a first, typical or preliminary model of something, especially a machine, from which other forms are developed or copied.”
equatinal by elimination melha
8n-3y = 18 and5x+6y=27
Answers
Answer:
x = 3 and y= 2
Explanation:
Given equations:
8x - 3y = 18 - ---- (I)
5x + 6y = 27 -------(II)
Solve this problem by elimination;
In the elimination method, we simply find a common term that can make one of the variables in the two equation the same. Then we either add or subtract to remove the variable.
Mulitply equation (i) by 5 to give equation III
Mulitply equation (II) by 8 to give equation IV
5(8x - 3y) = 5(18) ------- III
8(5x + 6y) = 8(27) ------- IV
40x - 15y = 90------- III
40x + 48y = 216 ------- IV
Subtract equation III and IV;
-15y - 48y = 90 - 216
- 63y = -126
y = 2
Solve for x;
40x - 15y = 90;
40x - 15(2) = 90
40x - 30 = 90
40x = 90 + 30
40x = 120
x = 3
What is the effect of tap water, sea water, and rainwater on the rusting rate of iron?
(Please i need an answer π-π)
Answers
Answer:
The more acidic the solution the faster it rusts. More Na = more rust
Explanation:
In order for a gas to condense to a liquid, the attraction between its molecules _____.
Answers
Answer:
._______.
Explanation:
Explanation:
The forces of attraction between one individual molecule and another. ... Gas phase molecules will in turn condense. ... The vapor pressure of a molecular substance depends on the strength of its ... If the external pressure on a liquid is increased, the vapor pressure of the liquid must___ in order for the liquid to boil.
What are the things to consider in classifying the different kinds of mixture?
Answers
Answer:
Whether the mixture can be separated
Which of the following characteristics is shared by both primary and secondary consumers? I need it quick it please
A. Uses the Sun's radiant energy of produce food
B.The first step in an food chain diagram
C. Eats only plants to gain needed energy
D.Gains energy by eating other living things
Answers
Answer:
Gains energy by eating other living things
The statement 'gains energy by eating other living things' is a characteristic shared by both primary and secondary consumers (Option D).
Producers (e.g. algae and plants) are autotrophic organisms that generate their own food.Primary consumers and secondary consumers are heterotrophs that need to eat other organisms to survive.Primary consumers can be, for example, herbivores, whereas secondary consumers can be carnivores.In conclusion, the statement 'gains energy by eating other living things' is a characteristic shared by both primary and secondary consumers (Option D).
Learn more in:
https://brainly.com/question/1810988
Please can I have help on question e as I’m really stuck.I promise I’ll give out brainiest
Answers
The relative atomic mass of element A : 6.075 u
Further explanationThe elements in nature have several types of isotopes
Isotopes are atoms whose no-atom has the same number of protons while still having a different number of neutrons.
So Isotopes are elements that have the same Atomic Number (Proton)
Atomic mass is the average atomic mass of all its isotopes
Mass atom X = mass isotope 1 . % + mass isotope 2.% ...
Element A
mass number of isotope 1 = 6 , percent : 92.5%
mass number of isotope 2 = 7, percent : 7.5
Relative atomic mass of element A
[tex]\tt = 92.5\%\times 6+7.5\%\times 7\\\\=5.55+0.525=6.075~u[/tex]
A roller coaster with a mass of 20kg sits at the top of a 30 m high hill. What is the Potential energy of the roller coaster?
(Formula: PE=mgh)
(g= 9.8m/s)
Answers
Answer:
The answer is 5880 JExplanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
We have
PE = 20 × 30 × 9.8
We have the final answer as
5880 JHope this helps you
if atoms are made up of mostly space, why do objects feel like they are mostly solid
Answers
Answer:
dont question the world kid
Explanation:
A 10.04-g block of solid tin at 14.77 °C is immersed in a 24.11-g pool of liquid ethylene glycol with a temperature of 63.52 °C. When thermal equilibrium is reached, what is the temperature of the tin and ethylene glycol? Specific heat capacities: tin = 0.213 J/g °C; ethylene glycol = 2.36 J/g °C
Answers
Answer:
61.75 °C
Explanation:
According to the law of conservation of energy,
Qtin = - (Qliquid)
(m×c×∆T)tin = -(m×c×∆T) ethylene glycol
Where; m = mass
c = specific heat capacity
∆T = change in temperature
According to the information given in this question;
For tin: m= 10.04g, c= 0.213 J/g °C, initial temperature= 14.77 °C, final temperature=?
For ethylene glycol: m= 24.11g, c= 2.36 J/g °C, initial temperature= 63.52 °C, final temperature=?
Hence; (m×c×∆T)tin = -(m×c×∆T) ethylene glycol
10.04 × 0.213 × (T - 14.77) = - {24.11 × 2.36 × (T - 63.52)}
2.139 (T - 14.77) = - {56.899 (T - 63.52)}
2.139T - 31.59 = -56.899T + 3614.225
2.139T + 56.899T = 31.59 + 3614.225
59.038T = 3645.815
T = 3645.815/59.038
T = 61.75 °C
The final temperature of tin and ethylene glycol is 61.75 °C
Rainforests are located in the latitudes that have the classification A) continental. B) subarctic. C) temperate. D) tropical.
Answers
Answer:
D
Explanation:
Rainforests are tropical.
Write the chemical symbols for three different atoms or atomic cations with 26 electrons.
Answers
Mn-1 (a manganese that has gained one electron)
Co+1 (a cobalt that has lost on electrons)
All three of these atoms/ions are isoelectronic, meaning that they all have the same number of electrons!
The chemical symbols for three different atoms or atomic cations with 26 electrons are Fe, [tex]Co^+[/tex], [tex]Ni^{2+}[/tex]
Explanation:
The atomic number of an atom is equal to the number of protonsAn atom is neutral, it has an equal number of electrons and protons.Element with atomic number 26 is Iron, Fe.A neutral atom of iron has an equal number of protons and electrons.Cobalt has an atomic number of 27.A neutral atom of cobalt has an equal number of protons and electrons.Cobalt has 27 electrons and by losing one electron it will form a cobalt (I) ion with 26 electrons.The cobalt (I) ion has 26 electrons, [tex]Co^+[/tex].Nickel has an atomic number of 28.A neutral atom of nickel has an equal number of protons and electrons.Nickel has 28 electrons and by losing two electrons it will form a nickel(II) ion with 26 electrons.The nickel (II) ion has 26 electrons,[tex]Ni^{2+}[/tex].So, from this, we can write chemical symbols for three different atoms or atomic cations with 26 electrons are Fe, [tex]Co^+[/tex], [tex]Ni^{2+}[/tex].
Learn more about ions here:
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A chemist measured a solution of 15.5 mL of a copper chloride
solution in water. This is an example of
data.
Answers
Answer:
solution
Explanation:
Suppose the moon orbited the earth just half as fast as it does now.
How many high tides would any one area have in one day?
A-3
B-2
C-1
D-4
Answers
-2
Answer:
Explanation: The correct answer is 1. Do not put 2 .
Describe what will happen to the pressure of the gas as the plunger is pushed in.
Answers
Answer:
The pressure of gas will increase.
Explanation:
The question above is related to "Boyle's Law." According to this law, provided that the temperature and amount of gas are stable, the absolute pressure of gas is inversely proportional to its volume.
In this sense, if the plunger will be pushed in, the volume of the gas will definitely decrease due to lack of space while the pressure will increase because the molecules of the gas are colliding with each other. The greater the collision, the greater the pressure. This explains the answer above.
Based on the article "Will the real atomic model please stand up?," describe what Dalton's theory states about a molecule of water. Dalton's theory about compounds tells us that all water molecules have different kinds of atoms, two hydrogen atoms for every one oxygen atom.
Answers
Answer:
Follows are the solution to this question:
Explanation:
The characterization with water molecules would be that light waves are made up of 2 different types of atoms (2 hydrogen and 1 oxygen atoms), as per the Dalton theory. There are many multiple times as many atoms of hydrogen as oxygen atoms in each water molecules. For every two hydrogen atoms, all water molecules have one oxygen atom.
Answer:
Sample Response: Dalton’s theory about compounds tells us that all water molecules have different kinds of atoms, two hydrogen atoms for every one oxygen atom.
Explanation:
What happens when you add salt to very cold ice?
Answers
the graph below shows the effect of temperature the volume of gas
Which generalization can be made about the relationship between the temperature and volume of a gas?
A. As the temperature of a gas increases, its volume increases.
B. As the temperature of a gas decreases, its volume increases.
C. As the temperature of gas decreases, its volume stays the same.
D. As the temperature of a gas increases, its volume stays the same.
Answers
Answer:
as the temperature of gas increases, its volume stays the same
Explanation:
Answer:
A! :)
Explanation:
Chemistry Data Analysis --
7.86 x 10^-15 x 3.9 x 10^-10
Answers
Answer:
3.065 x 10^-24
Explanation:
hope this helps
Name the laws for 1,2, and 3
Answers
Answer:
1. Boyle's law
2. Charle's law
3. Ideal Gas law
Explanation:
What’s this called
Please ASAP
Answers
Answer:
carbon dioxide CO[tex]{2}[/tex]
Explanation:
Double Polar Covalent bonds with CO2
Explanation:
Keep in mind that CO2 is a nonpolar molecule
Two compounds of phosphorus and fluorine have the following
mass ratios.
Compound 1: 10.14 g fluorine for every 3.38 g phosphorus
Compound 2: 8.42 g fluorine for every 4.21 g phosphorus
Find the whole number ratio of masses of fluorine in compound
1 to compound 2.
Help me please
Answers
Answer: 3:2
Explanation: (10.14÷3.38)÷(8.42÷4.21)=1.5=3/2
How many H2O particles are in 6 moles of water?
Answers
Answer:
Thus, for example, one mole of water contains 6.02214076×1023 molecules, whose total mass is about 18.015 grams – and the mean mass of one molecule of water is about 18.015 daltons.
Explanation:
Which two elements make up household ammonia?
A. neon and
helium
B. neon and
hydrogen
C. nitrogen and
helium
D. nitrogen and
hydrogen
ordt
English (US
Answers
Answer:
D. Nitrogen and Hydrogen
Explanation:
Answer: d
Explanation: took test
Is a backpack a good resource
for a rescue team?
Answers
How do I find the number of atoms using a chemical formula? ex: 4 HNO3
Answers
you should
MOL × NA(Avogadro Constant)
Mol = 4
HNO3 = 5 Atome ( 1H + 1N + 3O)
NA = 6.02 × 10* ( * = 23)
[tex]4 \times 5 \times 6.02 \times {10}^{23} = 20 \times 6.02 \times {10}^{23} = 120.4 \times {10}^{23}atom [/tex]
Answer:
2.408 x 10^24
GREETINGS!
One mole of a substance is equal to 6.02 × 10²³ units of that substance. The number 6.022 × 10²³ is known as Avogadro's number.
so if one mole of molecule is equal to that number so,
for 4 moles of [tex]HNO_{3}[/tex]= 4 x ([tex]6.02x10^{23}[/tex])
so answer is,
2.408 x 10^24
HOPE IT HELPS YOU.
How does an object's mechanical energy change as its speed (velocity) increases?
Answers
Answer:
The mechanical energy of the system increases, provided there is no loss of energy due to friction. The energy would transform to kinetic energy when the speed is increasing. The mechanical energy of the system remains constant provided there is no loss of energy due to friction.
Explanation: