Answer:
C newton's..................
How does height affect the speed of a falling object?
How does height affect the speed of a falling object?
Answer :-Equation:- v²-u² = 2aS
let the case of body be dropped
u = zero ( initial velocity ) a = g ( constant falling under gravity)S = initial height of the body from the groundv = final speed of the bodyby further solving :-
v²-0 = 2aS
v² = 2aS
2a is constant
so :-
v is directly proportional to the √S
so we can say that speed of the falling body increase with increase in the square root of the height from which is dropped or falling
1•) What is the universe made of?
2•) How did life begin?
3•) Are we alone in the universe?
4•) What makes us human?
5•) What is consciousness?
6•) Why do we dream?7 Why is there stuff?
8•) Are there other universes?
Balance and classify this reaction:
C6H6 +02 →CO2 +H₂O
Clouds form from liquid water and ice True Or False ? IF U ANSWER QUICK I WILL GIVE U A BRAINLIEST
Answer:
False
Explanation:
from gas such as vaporization
How is a lithium atom (Li) different from a lithium ion (Li+)?
lithium atom has 3 protons and 3 electrons
Lithium ion has 3 protons and 2 electrons
Which is a way to express concentration of a solution?
parts per billion
moles
molar mass
force per square meter
Answer:
A. Parts Per Billion
Explanation:
ED 2021
Answer:
a
Explanation:
How many moles of carbon are needed to produce 8 moles of carbon sulfide
0.4 is the answer
hope it very helpful
3 things to say when your girlfriend is sad?
Answer:
don't be sad you have a nice peach
babe you got that wap
don't be sad go get a tattoo
Answer:
Netflix and chill | do you need d!c rn ? | spoil her
Explanation:
What is the main advantage of a compact
fluorescent light bulb?
Answer:
The advantages of compact fluorescents are they are energy efficient, compact in size, have good lumen maintenance, long life, endless shapes and sizes, dimmable, easy retrofit, low operating cost, and radiate less heat.
Explanation:
How does the titration curve of a diprotic acid differ from that of a monoprotic acid?.
We have that how the titration curve of a diprotic acid differs from that of a monoprotic acid is that monoprotic acid will only have 1 equivalent point, while the diprotic acid will have 2 equivalent points.
What is differnce betwwen monoprotic acid and diprotic acid?Generally, the equation for the monoprotic acid is mathematically given as
HA>>><<H+ + A-
While
the equation for the diprotic acid is
H2 A>>><<H+ + HA-
HA- >>><<H+ + A2-
In conclusion, The monoprotic acid will only have 1 equivalent point, while the diprotic acid will have 2 equivalent points
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As the psub(K,a) of a series of weak acids increases, the strength of their corresponding conjugate bases will
For a series of weak acids, the increase in pKa means that the conjugate bases become more stable.
What is pKa?The term pKa refers to the negative logarithm of the acid dissociation constant. This is a constant that shows the extent to which an acid is dissociated in solution.
As the pKa of a series of weak acids increases, the conjugate bases become more stable.
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Copper metal (cu) reacts with silver nitrate (agno3) in aqueous solution to form ag and cu(no3)2. the balanced chemical equation is shown below. cu 2agno3 right arrow. cu(no3)2 2ag the molar mass of cu is 63.5 g/mol. the molar mass of ag is 107.9 g/mol. what mass, in grams, of ag is produced from a reaction of 31.75 g of cu? 26.95 grams 107.9 grams 215.91 grams 431.82 grams
The mass of produced silver from the reaction is 107.9 grams.
How we calculate mass from moles?Mass of any substance will be calulated by using the moles of that substance as:
n = W/M, where
W = required mass
M = molar mass
Givem chemical reaction is:
Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag
Moles of 31.75g of Cu = 31.75g / 63.5g/mol = 0.5 mole
From the stoichiometry of the reaction, it is clear that:
1 mole of Cu = produced 2 moles of Ag
0.5 mole of Cu = produced 2×0.5=1 mole of Ag
Now we calculate the mass of Ag from given moles as:
W = 1mol × 107.9g/mol = 107.9g
Hence correct option is (2).
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What is the last step in the process of getting a bill passed into law under normal circumstances
The anser is by making the bill have tall the things that a normal bill has. the invisiable line in the middle. the invisible ben franklin and the 50
This is a Chemical bond where two atoms are sharing 1 or more electrons among the separate elements of a compound
O Covalent Bond
O lonic Bond
O Ambient Bond
O Metallic Bond
Answer:
Covalent bond
How many grams are in 7.50 moles of Hg?
Answer:
0.03738970038
Explanation:
7.50 x 0.0049852933845157 = 0.03738970038
How is the energy transformation in a bouncing ball similar to those of a pendulum
Answer:
Similar to the movement of a pendulum, an enormous wrecking ball when held at a height possesses potential energy, and as it falls, its potential energy is converted to kinetic energy. As the wrecking ball makes contact with the structure to be destroyed, it transfers that energy to flatten or take down the structure.
Explanation:
I hope this helps :)
WILL GIVE BRAINLIEST. IF YOU DO LEAVE AN ANSWER, PLEASE EXPLAIN.
Answer:
it should be C
Explanation:
the top guy is right
If Earth's mass doubled
without changing its size,
your weight would
Answer:
Answer: It will double our mass too .
Explanation: Because the gravitational force will be more and it will attract us more towards its surface which will result to more weight gain .
Explanation:
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Jon is riding his bicycle around town. Which part of his ride shows the result of balanced forces? A. when he rides at a constant speed up a hill B. when he speeds up going down a hill C. when he rides at a constant speed while turning D. when he slows down on a level sidewalk
Answer:
d. when he slows down on a level sidewalk
Explanation:
that's a balanced force.
When food is exposed to air, it can lose electrons. This loss of electrons
creates reactive molecules that work to destroy the chemical bonds in the
food, causing it to spoil. What are these reactive molecules called? A. Hydrogen molecules
B. Free radicals
C. Oxygen molecules
D. Spoiling molecules
It is Free radicals
Answer:
Its Free Radicals
Explanation:
You're Welcome
The atomic masses of two isotopes of Zinc are 64 and 66. If Zinc has 27 electrons, what is the number of protons and neutrons in each isotope?
Zinc-64 : Number of protons __________ Number of neutrons ______________
Zinc-66 : Number of protons __________ Number of neutrons ______________
Answer:
Zinc-64: Number of protons is 30. Number of neutrons 34.
Zinc-66: Number of protons is 30. Number of neutrons 36.
Explanation:
The atomic number of Zinc is 30, so in every Zinc atom, regardless of whether it's an isotope or not, will always have 30 protons.
The atomic number of an equivalent to the number of protons, and never changes.
The isotope number is the sum of the protons and neutrons in the nucleus.
Isotope number = atomic number + neutrons
So if we have 30 protons, and we're trying to find the number of neutrons in Zinc-64 we just subtract 30 from 64.
64 - 30 = 34
So now we know that there are 34 neutrons in Zinc-64
Same thing goes for Zinc-66.
66 - 30 = 36
There are 36 neutrons in Zinc-66.
Hope that's helpful!
Which conclusion do the graphs support?
Phosphorus is required for the growth of the phytoplankton.
Phosphorus is required for the growth of the phytoplankton.
Phytoplankton cannot withstand high levels of phosphorus present in the estuary.
Phytoplankton cannot withstand high levels of phosphorus present in the estuary.
Phosphorus harms the growth of phytoplankton in the estuary.
Phosphorus harms the growth of phytoplankton in the estuary.
Phytoplankton growth does not depend on the amount of phosphorus.
Phytoplankton growth does not depend on the amount of phosphorus.
Answer:
Phosphorus is required for the growth of the phytoplankton.
Explanation:
What is the speed of light in a vacuum? What would happen to this speed as it enters a different medium?
Answer:
the speed and wavelength of light are reduced , although the frequency remains unaltered.
The speed of light on the vacuum is equal to 3 ×10⁸m/s. The speed of light changes as it enters a different medium due to refraction.
What is refraction?Refraction of light can be described as the redirection of a light ray traveling from one optical medium to another optical medium. The redirection is caused by a change in speed with a change in the medium. Refraction of light can be described as an observed phenomenon, but sound waves and water also experience refraction.
Refraction follows Snell's law, which can be described as the ratio of the sines of the angle of incidence and angle of refraction should be equal to the ratio of the refractive indices of the two different mediums.
When light travels from a less dense to a denser medium, then the refracted ray bends towards the normal. The angle of incidence of the light ray will be greater than the angle of refraction.
If a light ray travels from a denser to a rarer medium, then it will bend away from the normal and the angle of incidence will be less than the angle of refraction.
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A car with a mass of 900 kg accelerates at 45 m/s 2 squared. What is the force acting on the car?
Answer:
mass (m) = 900 kg, acceleration (a) = 32 m/s^2. using f=m*a, f = 900 * 32 = 28 800 newtons. power (watts)= (f * s)/t say accelerating for 1 second from rest, s= (a*t^2)/2 = 16 meters.
Which example is an endothermic process?
A.) thawing frozen shrimp
B.) mixing strong hydrochloric acid and strong ammonium hydroxide
C.) rusting a nail in water
D.) dissolving acetic acid in water
An example of an endothermic process is the thawing frozen shrimp.
What is an endothermic reaction?An endothermic reaction is one in which energy is taken in as the reaction progresses. Energy is required fro the reaction to progress. In an endothermic reaction, the energy of the products is greater than the energy of the reactants.
In the question, an example of an endothermic process is the thawing frozen shrimp.
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Someone please answer quick.
How many molecules are in 5.5 mol of a ZnCL2 sample
Answer:
The answer is 136.286.
mr cleann
how many moles are represented in 11.5 grams of sodium?
Answer:
In 11.5 g of sodium, there are 0.5 moles.
Explanation:
The bond line formula,
represents the molecular formula
C₂ H18
C₂H15
yes this is the right question
If the molar mass of zinc is 65.39 g/mol. you have a 65.2g piece of zinc. how many moles of zinc are present?
Answer:
By dividing the two, we can determine the mol. And I have also inserteed the formula below
Explanation:
Moles of zinc present in the sample that have a mass of 65.2 g are 0.997 moles.
What are moles?
Moles are used to calculate the amount of substance to measure the small entity. It is calculated as:
[tex]\rm moles = \rm \dfrac{mass}{molar\; mass}[/tex]
Given,
Molar mass of zinc = 65.39 g/mol
Mass of zinc = 65.2 g
Moles are calculated as:
65.2/65.39 = 0.997 moles
Therefore, 0.997 moles of zinc are present.
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Can someone help me with this?
1. F
2. E
3. G
4. A
5. C
6. D
7. B