Answer:
The heart
Hand
Explanation:
The part of the human body that has the same role as the power source in a computer is the heart. A power source in a computer provides energy that powers the whole system.
The human heart provides the pumping action for the circulatory system. Just like current passes through wires in a computer by energy from the power source, the human heart pumps blood throughout the body in a like manner. Without the pumping action of the heart, the human body is dead.Also, keyboard and mouse are input devices. They are used to give instruction and perform certain tasks on the computer system.
The human body can also carryout tasks by using the hand. Objects are moved from one place to another just as you drag an icon using the mouse. We type word processors using information from the keyboard, also, we are able write using pen on paper.
Hannah added a silvery white metal to a beaker of cold water and noticed that
gas bubbles were given off and a different substance formed. When she
repeated the activity with hot water she noticed the gas bubbles were released
much more rapidly. Which statement best explains why the reaction occurred
faster in hot water?
A ) Hot water increases the collision rate of the molecules, causing the
reaction to occur faster.
B ) Hot water changes the concentration of the chemicals, causing the
reaction to occur faster.
C ) Hot water increases the surface area of the molecules, causing the reaction
to occur faster.
D ) Hot water changes the chemical composition of the water molecules,
causing the reaction to occur faster.
Answer:
A. Hot water increases the collision rate of the molecules, causing the
reaction to occur faster.
Explanation:
Hot water molecules move faster than cold water molecules.
Plzzzzzzzz help Which species is a index fossil
Answer:
e
Explanation:
it's in the index fossil range
Answer:
Explanation:
In marine strata, index fossils that are commonly used include the single-celled Protista with hard body parts and larger forms such as ammonoids. In terrestrial sediments of the Cenozoic Era, which began about 65.5 million years ago, mammals are widely used to date deposits.
A. to hold and protect the cells DNA
B.to store food and other materials inside a cell
C. to store enzymes that Break down food
D. to use energy from sunlight to make surgars
I'll give you brainliest and 5 stars if your right
How would the calculated concentration of the hci be affected if the sodium hydroxide were poured from ma beaker that contained some water before the naoh were added to it
Answer:
This question is incomplete
Explanation:
This question is incomplete. However, the beaker that contained some water before NaOH were added means that the resulting solution in that beaker will be more dilute. When this diluted sodium hydroxide solution is added to HCl (not hci), the reaction below occurs
HCl + NaOH ⇒ NaCl + H₂O
The reaction above is a neutralization reaction. The concentration of the acid (HCl) will reduce when a base (sodium hydroxide) is added and will also reduce more because of the presence of more water (in the base) which normally reduces the concentration of ions present in an acid or a base to become more dilute.
is water wet yes or no
Answer:
no water isn't wet.
Explanation:
Water isn't wet by itself, but it makes other materials wet when it sticks to the surface of them
What do you think makes fireworks different colors?
Answer:
So I searched it up and got, "They're created by the use of metal salts. ... Metal salts commonly used in firework displays include: strontium carbonate (red fireworks), calcium chloride (orange fireworks), sodium nitrate (yellow fireworks), barium chloride (green fireworks) and copper chloride (blue fireworks)."
WHY WAS I THINKING OF PAINT-
Explanation:
Have a great day though:)
Is the equation balanced or unbalanced?
Explanation:
The equation is balanced
please help me..........
Answer:
4/6
6/9
8/12
Explanation:
What is Jadi? is it goat? what language is Jadi?
The system brings molecules to the cells. It includes blood vessels and the heart.
respiratory system
digestive system
circulatory system
nervous system
when is the energy source used to fuel photosynthesis
Answer:
Photosynthesis, process by which green plants and certain other organisms use the energy of light to convert carbon dioxide and water into the simple sugar glucose. In so doing, photosynthesis provides the basic energy source for virtually all organisms.
Explanation:
What’s the answer????
Answer:
Greater
Greater
Explanation:
The amplitude of a wave is the height of the wave or the vertical displacement of the wave motion. We determine a wave amplitude usually by looking at the graph of the wave.
Amplitude is directly proportional to the energy of a wave. The higher the amplitude of a wave, the more its energy.
Frequency is the number of waves that passes a point at a particular instance of time. It is also directly proportional to the energy carried by a wave. The higher the frequency of a wave, the greater its energy.
Describe in your own words how the earth's layers were formed.
The layers of the earth were formed due to the sediments that significantly flattens out beside the center of the earth. After a long duration, a new layer is spread over the older layer, and so on.
What are the different layers of the earth?The different layers of the earth are as follows:
The Inner Core: This is the first layer from the center of the earth. The Outer Core: It is found after the inner core. The Mantle: It is the middle layer of the earth. The Crust: It is the outermost layer of the earth.The above-mentioned layers of the earth were formed with the impact of the building blocks of the earth that are remarkably known as Planetesimals, collided, and collapsed.
During that time, the hardest elements like nickel, iron, etc. constitute the core while the lighter elements like carbon, oxygen, silicon, etc. play an essential role in the formation of crust and mantle.
Therefore, the layers of the earth were formed due to the sediments that significantly flattens out beside the center of the earth.
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Which of these statements is false?
•Protons have a positive charge.
•Electrons have the same mass as a proton but have the opposite charge.
•The neutron is found in the nucleus of an atom.
•The nucleus of an atom is positively charged.
Answer:
the nucleus of an atom is positivley charged
Explanation:
PLZ HELP ME ANSWER THIS!!!
Answer:
Water
Explanation:
water or oxygen is probably your answer
For the following reaction:
N2 + 3H2 -> 2NH3
What mass of NH3 can be produced from 14.9g N2 and 3.8 g H2 ?
Answer:
Nitrogen is the limiting reactant, and
3.74
grams of ammonia is formed.
Explanation:
We have the familiar Haber process equation...
N
2
(
g
)
+
3
H
2
(
g
)
⇌
2
N
H
3
(
g
)
Since the mole ratio of
N
2
to
H
2
is
1
:
3
, then for every mole of nitrogen, we would need three moles of hydrogen.
Explanation:
a bucket gets filled faster at ground floor then at 2nd floor .
give reason
Answer:
because its on floor which makes it faster since the pipes dont go up and if they went up its gonna be alittle slower than the ground floor cuz in the ground floor it doesnt go Up and i think this is wrong but im sorry im not really good at explaining
Explanation:
What is evidence that a chemical change has happened?
O A. The temperature of a substance increases or decreases.
B. The amount of matter increases.
C. A substance changes into a new kind of substance.
O D. You observe a color change.
Please help :) —————————————
Answer:
I can't see what the picture says
Describe the current model of the atom. Name the parts of this model and describe each part.
Answer:
the electron cloud model is the current model of atom
Why is the cell a basic unit of life?
Answer:
Cells make up the smallest level of a living organism such as yourself and other living things. The cellular level of an organism is where the metabolic processes occur that keep the organism alive. That is why the cell is called the fundamental unit of life.
Explanation:
put it in your own words
What is the total number of grams of a 32-gram sample of 32P remaining after 71.5 days of decay?
Answer:
1 g
Explanation:
The following data were obtained from the question:
Original amount (N₀) = 32 g
Time (t) = 71.5 days
Half-life of phosphorus (t½) = 14.3 days
Amount remaining (N) =?
Next, we shall determine the rate of disintegration. This can be obtained as follow:
Half-life of phosphorus (t½) = 14.3 days
Decay constant (K) =?
K = 0.693 / t½
K = 0.693 / 14.3
K = 0.0485 /day
Finally, we shall determine the amount remaining as illustrated below:
Original amount (N₀) = 32 g
Time (t) = 71.5 days
Decay constant (K) = 0.0485 /day
Amount remaining (N) =?
Log (N₀/N) = Kt/2.303
Log (32/N) = 0.0485 × 71.5 / 2.303
Log (32/N) = 3.46775 / 2.303
Log (32/N) = 1.5058
Take the antilog of 1.5058
32/N = antilog (1.5058)
32/N = 32.05
Cross multiply
32 = N × 32.05
Divide both side by 32.05
N = 32 / 32.05
N = 0.998 ≈ 1 g
Thus, the amount remaining after 71.5 days is approximately 1 g.
The half-life of a radioactive substance refers to the time taken for the substance to Decay to half of its initial size. Hence, the mass of the substance left after 71.5 days is 1 gram.
Initial mass = 32 g Half life = 14.3 daysAfter 14.3 days ;
32 / 2 = 16 gramsAfter 14.3 × 2 = 28.6 days :
16/2 = 8 gramsAfter 14.3 × 3 days = 42.9 days :
8 / 2 = 4 gramsAfter 14.3 × 4 days = 57.2 days :
4 /2 = 2 gramsAfter 14.3 × 5 days = 71.5 days :
2 /2 = 1 gram.Hence, the mass of the sample left after 71.5 days would be 1 gram.
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Mass spectrometry is more often applied to molecules than to atoms. We will see in Chapter that the molecular weight of a molecule is the sum of the atomic weights of the atoms in the molecule. The mass spectrum of H is taken under conditions that prevent decomposition into H atoms. The two naturally occurring isotopes of hydrogen are H (atomic mass = 1.00783 amu; abundance 99.9885%) and H (atomic mass = 2.01410 amu; abundance 0.0115%). How many peaks will the mass spectrum have? Give the relative atomic masses of each of these peaks. (c) Which peak will be the largest, and which the smallest?
Answer:
See explanation
Explanation:
There will be three peaks. The relative masses of each of the peaks is shown below;
1H - 1H peak will have a mass of 2*1.00783 amu = 2.01566 amu
1H -2H peak will have a mass of 1.00783 amu + 2.01410 amu = 3.02193 amu
2H - 2H peak will have a mass of 2*2.01410 amu = 4.0282 amu
The 2H - 2H peak is the smallest while 1H - 1H peak is the largest.
Please help me it would be amazing if you can?
(NUMBER 9)
Answer:
3) Warm Temperature and High Pressure
Explanation:
I explained this in your other question ;)
Answer:
Warm temp and high pressure
Explanation:
what is the needed electrons for CLO3-
compare the two types of optical telescopes
Answer: Reflectors use a mirror to collect the light, whilst refractors use a lens while, Refractor telescopes require a large lens at the front to direct the incoming light to the lens.
Hey guys
What is ionic bond and how do we get it???
Please quik helpp
Answer:
Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom.
Explanation:
Where does shearing often occur?
Answer:
Shearing commonly occurs along the edges of tectonic plates, although it may occur in other places as well. Most often it takes place between 10 and 20 kilometers beneath the earth's surface. If the same process occurred at the surface, it would result in fracturing and faulting.
Explanation:
Answer:
Now if u could give us all the questions u got right! lol 8
Explanation:
What element is represented in this model of the atomic number is 3
This is science
Answer:
lithium because it has an atomic number of three(you could have just googled which element has the atomic number 3)
Arrange the following in order of increasing atomic radius: Mg, Na, P, Si, and Ar.
Answer:
Ar, P, Si, Mg, Na
Explanation:
Ar=106pm
P=107pm
Si=111pm
Mg=141pm
Na=166pm
Na>Mg>Si>P>Ar is the order of increasing atomic radius.
What are elements?Elements are the simplest substances which cannot be broken down using chemical methods.
Atomic radii vary in a predictable way along or across the periodic table. The atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus we can say that helium is the smallest element, and francium is the largest.
Ar=106pm
P=107pm
Si=111pm
Mg=141pm
Na=166pm
Hence, Na>Mg>Si>P>Ar is the order of increasing atomic radius.
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Ella makes this table to organize her notes on whether atoms gain or lose energy during the changes of state.
A 2-column table with 2 rows. The first row has entries Gain Energy, Lose Energy. The second row has entries nothing, nothing.
Which changes of state should she place in the column titled "Lose Energy"?
freezing, boiling, and melting
melting, vaporization, and sublimation
sublimation, deposition, and condensation
freezing, deposition, and condensation
Answer:
D
Explanation:
I took the test
Answer:
D took the test
Explanation: