Answer:
I would say b hope this helps
Explanation:
have a good day btw i had this question before:D
Newton's third law of motion States that for every action there is an equal and opposite reaction. Which of these illustrates newtons third law?
Answer:
This question lacks options, the options are:
A: Two students of similar mass run into each other. They bounce off each other when they collide.
B: Two students of similar mass run side by side into a wall and punch holes of equal size before emerging on the other side.
C: Two students of similar mass run in opposite directions, but one accelerates at twice the rate of the other.
D: Two students of similar mass run at the same speed in opposite directions on a track. They will collide with 400 Newtons of force in 400 meters.
The answer is A.
Explanation:
Isaac Newton proposed three laws, which he called laws of motion. The third of these laws states that for every action, there is an equal and opposite reaction. This means that if an object A collides with object B, object B will exert a force of similar magnitude but in opposite direction on object A.
From the examples in the option, when two students of similar mass run into each other. They bounce off each other when they collide. This means that student 1 and student 2 will go in opposite directions after collision with one another. This portrays Newton's third law of motion.
eeeeeeeeeeeeeeeeeeeeeeeeeeeee
1. Closest
2. Million
3. All
4. Sunlight
5. Heat
6. Are
7. Faster
8. Million billion
9. Protection
10. Moon
11. Never
12. Tiny
13. Living
14. Explosions
15. Solar
Have a nice day!
Answer:
1. Closest
2. Million
3. All
4. Sunlight
5. Heat
6. Are
7. Faster
8. Million billion
9. Protection
10. Moon
11. Never
12. Tiny
13. Living
14. Explosions
15. Solar
give the other person brainliest
have a good day :)
Explanation:
How can you use the periodic table to determine the charge of an ion?
Answer:
memorise them
Explanation:
1, 2, skip metals, 3, 0, -3, -2, -1
11.
The picture shows sand used to make a model of a galaxy. In the model, each grain of
sand best represents
A.
B.
a comet
a black hole
an asteroid
C.
D.
a star
Answer:
D
Explanation:
I took that.
Meera added blue copper sulphate crystals to some water in a beaker.
The copper sulphate dissolved in the water.
1 give one way meera could see that the copper sulphate had dissolved in the
Answer:
The solid crystals disappeared
Explanation:
When a soluble solid solute is added to water, the solid solute disappears after a little while. The disappearance of this solute indicates that the solute has been dissolved in water.
In this case, blue copper sulphate crystals are added to water, the blue crystals disappear leaving only a blue solution. The disappearance of these blue copper sulphate crystals indicates that the substance has dissolved in water.
What would make oppositely charged objects attract each other more?
increasing the positive charge of the positively charged object and increasing the negative charge of the
negatively charged object
decreasing the positive charge of the positively charged object and decreasing the negative charge of the
negatively charged object
increasing the distance between the positively charged object and the negatively charged object
maintaining the distance between the positively charged object and the negatively charged object
Answer:
a: increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object
Explanation:
The oppositely charged objects attract each other more is option a. It increased the positive charge and the negative charge.
The Attraction of the oppositely charged:At the time when the oppositely charged objects are attracted to each other more so here the positive charge should be increased with respect to the positive charge object and the negative charge is increased with respect to the negative charge object
Hence, the first option is correct.
Learn more about an object here: brainly.com/question/19587294
4. A typical human consumes 2500 Kcal of energy during a day. This is the equivalent to 10,450,000 J. Say you decided to run stairs all day. Given that there are: 24 hours / day • 60 minutes / hour • 60 seconds / minute = 86,400 seconds / day How much energy, in Joules, would you burn in climbing stairs all day?
Answer:
The amount of energy that would be burnt in climbing stairs all day is approximately 52,738,560 Joules
Explanation:
The question is with regards to an experiment with details that can be obtained from the U Oregon website
The given parameters of the question are;
The energy consumed by a human each day = 2,500 kcal = 10,450,000 J
The required parameters obtained from U Oregon website are;
The average weight of a student, W ≈ 60 kg × 9.81 m/s² = 588.6 N
The average time it takes a student to run up a flight of stairs = 5.4 s
The height of the stairs, h = 0.2 m × 28 = 5.6 meters
Therefore, we get;
Work done in climbing up the stares = W × h = 588.6 N × 5.6 meters = 3,296.16 J
The height the student can climb in a day is given as follows;
The time of 1 day in seconds, t = 86,400 s
The height the student climbs in 5.4 s = 5.6 m
∴ Vertical velocity, [tex]v_y[/tex] = 5.6 m/(5.4 s) = (28/27) m/s
The vertical height the student climbs in a day, [tex]h_{(v \, all \, day)}[/tex] = [tex]v_y[/tex] × t
∴ [tex]h_{(v \, all \, day)}[/tex] = (28/27) m/s × 86,400 = 89,600 m
The work done all day = W × [tex]h_{(v \, all \, day)}[/tex] = 588.6 N × 89,600 m = 52,738,560 J
The amount of energy in joules that would be burnt in climbing stairs all day = The work done all day = 52,738,560 Joules
please help balance this equation
_B2Br6 + _HNO3= _B(NO3)3+_HBr
Answer: B2Br6 + 6HNO3 → 2B(NO3)3 + 6BrH
Equation
B2Br6+HNO3=B(NO3)3+HBr
B=2 B=1
BR=6 BR=1
H=1 H=1
N=1 N=3
O=3 O=9
ANSWER
B2Br6 + 6HNO3 → 2B(NO3)3 + 6BrH
B=2 B=2
BR=6 BR=6
H=6 H=6
N=6 N=6
O=18 O=18
HOPE THIS HELPS
Potential energy
Reaction progress
A. The products have higher potential energy, and energy is
absorbed.
O B. The reactants have higher potential energy, and energy is
absorbed.
C. The products have higher potential energy, and energy is released.
D. The reactants have higher potential energy, and energy is released.
Answer:
I believe it's D.
Explanation:
which chemical reaction absorbs energy?
A. photosynthesis
B. explosion
C. current produced by a battery
D. combustion of fuels
E. activated hand warmers
Answer:
A is your answer
el cuerpo humano puede resistir contaminantes más toxicos como el mercurio?
porque y como?
Answer:
no por qué el cuerpo es muy débil
Explanation:
cómo los murciélagos muchos son muy agresivos y eyos resisten
True or False. Weather patterns in the US moves from the West to East across the
country.
Answer:
North America) than in the tropics. Since low pressure systems spin in a counterclockwise fashion, winds move from the west to the east, propelling weather systems to the east. Another MAJOR factor that drives weather systems in the U.S. is that the Jet Steam moves from West to East across North America.
Explanation:
I hope this helped
(Sorry If it didn't)
7. Convert 3.57 x 106 into standard (long) form.
a) 0.0000357
b) 0.000357
c) 3570000
d) 0.00000357
e) 357000
!!!!! Need this now !!!
Answer:
c) 3570000
Explanation:
The standard form is a way to simplify too long or too short numbers. Standard form uses powers of ten to contract numbers.
x × 10^n
Where;
x = decimal number between 1.0 - 10.0
n = power of 10
According to this question, a number already in standard form is given as 3.57 x 10^6.
To convert to its long form, we count forward the power of ten beginning from where the decimal is. In this case, we're counting 6 times Note that once the decimal is after 7, we start placing zero (0) instead. Based on this, we have;
3.57 x 10^6
1st count = 35.7
2nd count = 357
3rd count = 3570
4th count = 35700
5th count = 357000
6th count = 3570000
Hence, the long form of the number 3.57 x 10^6 is 3570000.
Which substance is an ionic solid? A. LiCl B. HCl C. Ne D. Fe
Answer:
A. LiCl
Explanation:
Lithium chloride is an ionic compound but it also has some covalent character due to the very small size of lithium metal.
Ionic solids are formed between a metal and a nonmetal. Among the given options, option A, LiCl is an example of ionic solid formed from lithium metal and chlorine.
What is ionic solid?Ionic compounds are formed between metals and non-metals. Metals are electron rich and easily loss electrons. Non metals are mostly electron deficient and gain electron from metals.
Lithium is an alkali metal with one valance electron. Cl is 17th element with 7 valence electrons. Cl needs one more electron to achieve octet. Li donates its valence electron to Cl, and gains a positive charge and Cl gains a negative charge by accepting the electron.
The opposite charges between the atoms gets attracted electrostatically forming ionic bond between them and the compound LiCl results. HCl is a covalent compound. Ne and Fe are pure metals and not ionic solids. Hence, option A ic correct.
Find more on ionic solids:
https://brainly.com/question/29629371
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ASAP - Thank you
Atoms with greatly different electronegativity values are expected to form ______.
a. ionic bonds
b. triple bonds
c. covalent bonds
d. no bonds
e. none of these choices
Answer:
Covalent bonds
Explanation:
Atoms with greatly differing electronegativity values are expected to form..... ... When two atoms each need additional electrons to fill their valence shells, but neither is electronegative enough to steal electrons from the other, they can form another kind of chemical bond called a covalent bond.
Which element, when combined with Fluorine, would form an COVALENT compound?
A.Lithium
B.Iron
C.Phosphorus
D.Sodium
Answer:
Explanation:
A covalent compound is a compound formed by covalent bonds. A covalent bond is formed between two atoms where electrons are shared between the two atoms. This forms a molecule.
What determines whether two elements will form a covalent compound or not is the number of valence electrons present in each of the elements.
Fluorine will form a covalent compound with phosphorous because fluorine has 5 electrons in its outermost shell. It needs 3 more to become stable.
Phosphorous also has 5 valence electrons. It needs 3 more to become stable.
What happens is that 3 atoms of FLuorine combine with one atom of Phosphorus, sharing the valence electrons between themselves. This leads to the formation of the PF3 molecule.
Both the Phosphorous and the Fluorine are now stable.
Answer: Phosphorus
Explanation: since both are non-metals they would both create a covalent bond.
what is the name of the shape that is a quadrilateral where all 4 sides are the same length
HELP QUICK
Answer:
Square
Explanation:
A square is a quadrilateral with r sides the same length
2. Which type of energy is centered around breaking the bonds between elements in a compound?
Nuclear
Chemical
Electrical
Elastic
If 1.5 moles of NaC₂H₃O₂ are dissolved in 750g of water, what is the molality of this solution?
2.0m
1.5m
2.6m
0.9m
Answer:
2m.
Explanation:
molality = no.of moles of solute ÷ mass of solvent in kg
molalty = 1.5 moles ÷ 0.75 g
= 2m
answer number 12 for me
Answer:
I believe its F: 2.55
Explanation:
I know I'm very late, positive you're past this question, I'd hope at least.
Place the following items in the correct order to show how a voice can be recorded and saved using an analog device.
Answer:
A person sings into a microphone.
Sound is converted to an electrical signal
The electric signal creates a magnetic code.
A magnetic code is transferred to a medium such as a tape or ...
can somebody help me with this question please
Answer:
concave lens
Explanation:
it's concave lens because it diverges the ray/beam of light.
Concave lens
The concave lens always repels the ray of light to go away .There are 2 types of lens
ConvexConcaveWhich elements are in the compound hydrochloric acid?
A. Helium and carbon
B. Hydrogen and carbon
C. Helium and chlorine
D. Hydrogen and chlorine
Answer:
D. Hydrogen and chlorine
Explanation:
Answer:
d
Explanation:
hydrogen and chlorine
is the compound of hydrochloric acid
Ammonia gas (NH3) combines with oxygen gas (O2) to form diatomic nitrogen gas and water vapor. If 4.0 grams of ammonia react, how many liters of nitrogen gas are produced? The gas is collected at 32.00°C and a pressure of 2.6 atmospheres.
Answer:
1.13 L
Explanation:
First, we have to write the chemical equation for the reaction between ammonia gas (NH₃) and oxygen gas (O₂) to give nitrogen gas (N₂) and water (H₂O), as follows:
NH₃(g) + O₂(g) → N₂(g) + H₂O(g)
Then, we have to balance the equation (we write first the coefficient 2 for NH₃ to balance N atoms, then a coefficient of 3 for H₂O to balance H atoms, and finally 1/3 to balance the O atoms):
2 NH₃(g) + 3/2 O₂(g) → N₂(g) + 3 H₂O(g)
In the balanced equation, we can see that 1 mol of N₂ is produced from 2 moles of NH₃. We convert the moles of NH₃ to grams by using its molecular weight (MW):
MW(NH₃) = 14 g/mol N x 1 + (1 g/mol H x 3) = 17 g/mol
grams of NH₃ = 17 g/mol x 2 = 34 g
Thus, we have the stoichiometric ratio:
1 mol of N₂/2 mol NH₃ = 1 mol of N₂/34 g NH₃
To calculate how many moles of N₂ are produced from 4.0 of NH₃, we multiply the mass by the conversion factor:
4.0 g NH₃ x 1 mol of N₂/34 g NH₃ = 0.1176 moles N₂
Finally, we calculate the liters of N₂ gas by using the ideal gas equation:
PV = nRT ⇒ V = nRT/P
We introduce the data in the equation:
T = 32.00°C + 273 = 305 K
P = 2.6 atm
R = 0.082 L.atm/K.mol (is the gas constant)
n= 0.1176 moles
⇒ V = nRT/P = (0.1176 mol x 0.082 L.atm/K.mol x 305 K)/(2.6 atm)
= 1.13 L
Which planet rotates the slowest on its axis?
Answer:
Venus
What is the Slowest Planet. Venus, which is floating higher each evening in twilight, low in the west, is the slowest-spinning body in the known universe. If you walked along a bike path that circles its equator, you'd only need to go four miles an hour to keep night from ever falling on Venus.
Answer:
Venus
Explanation:
It rotates once every 243 days, by far the slowest rotation period of any of the major planets.
hope its correct :)
If 1.25 g of water is heated from 20.0 degrees Celsius to 45.0 degrees Celsius and has a specific
heat of 4.18 J/gC, how much heat energy does it contain?
Answer: Heat energy contained by water is 130.625 J.
Explanation:
Given: Mass = 1.25 g
Specific heat = [tex]4.18 J/g^{o}C[/tex]
Initial temperature = [tex]20.0^{o}C[/tex]
Final temperature = [tex]45.0^{o}C[/tex]
Formula used to calculate heat energy is as follows.
[tex]q = m \times C \times (T_{2} - T_{1})[/tex]
where,
q = heat energy
m = mass of substance
[tex]T_{1}[/tex] = initial temperature
[tex]T_{2}[/tex] = final temperature
Substitute the values into above formula as follows.
[tex]q = m \times C \times (T_{2} - T_{1})\\= 1.25 g \times 4.18 J/g^{o}C \times (45.0 - 20.0)^{o}C\\= 130.625 J[/tex]
Thus, we can conclude that heat energy contained by water is 130.625 J.
Which two planets are the largest? Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
Answer:
Jupiter and Saturn are the two biggest planets
Should couples wanting to start a family undergo genetic testing to minimize risk to their offspring
Answer:
Yes
Explanation:
The genetic testing is also called as the DNA testing. It is mainly used for identifying the changes in the DNA sequence or the chromosomes structure. It can also measure the results in the genetic changes.
Couples those who are planning to start a family should go for a genetic testing so as to minimize a risk in the upbringing or growth of their offspring. By doing a genetic testing a couple can well know the conditions of the baby that could affect them. The result from a genetic testing can help to plan better before starting a family. Therefore, it is advisable for couples to go for a genetic testing so that they plan better by knowing the conditions.
Which of these hydrocarbons is a ketone? Check all that apply.
Answer:
The answer is below
Explanation:
Ketone is a class of organic compounds which has a carbonyl group such that the carbon atom is covalently bonded to an oxygen atom, while the remaining two bonds are to other carbon atoms or hydrocarbon radicals.
Ketones are highly reactive hydrocarbons, they can be gotten from the oxidization of secondary alcohols. Ketone are used for medicinal applications.
The third option is the ketone
it’s the the last 2 choices
Explain why uranium must be enriched to be used in a nuclear power plant.
Answer:
The nuclear fuel used in a nuclear reactor needs to have a higher concentration of the U 235 isotope than that which exists in natural uranium ore. U235 when concentrated (or "enriched") is fissionable in light-water reactors (the most common reactor design in the USA).
Explanation: