The earth could not be broken apart by the impactor since it was formed of such light material (mostly gas and liquid).
What are the basic features of the theory of the enormous impact ?According to the Giant Impact Hypothesis, which is the most widely accepted theory for how the moon formed, the Earth and a Mars-sized object called Theia collided with each other as they were forming as protoplanets. The moon was created from a large amount of debris. According to this theory, the Moon was created after the Earth collided with a smaller planet that was around Mars' size. The Moon was created when the impact's leftover debris gathered in an orbit around Earth.
The larger body may have caught the iron core of the striking object.
The key to this theory is understanding how consciousness works and harnessing its power for good. By doing so, we can help to manifest positive changes in our world collectively.
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As your friend skateboards down a hill, you measure their velocity at 1.0-second
intervals. You record the following data: ((0.0 s, 0.0 m/s), (1.0 s, 2.3 m/s),
(2.0 s, 4.6 m/s)}. Determine your friend's acceleration.
Answer:
what does the acronym VAT stand for
The correct answer for the acceleration is [tex]2.3[/tex] m/s².
Given:
Initial velocity:- [tex]0.0[/tex] m/s
Final velocity:- [tex]4.6[/tex] m/s
Time interval:- [tex]2.0[/tex] seconds
Acceleration calculated here will be average acceleration:
From equation of motion:
[tex]v= u+at[/tex]
[tex]a = \dfrac{v-u}{t}[/tex]
[tex]= \dfrac{4.6 -0.0}{2}[/tex]
[tex]= 2.3[/tex]
Acceleration is [tex]2.3[/tex] m/s².
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A robot used in a pharmacy picks up a medicine bottle at t=0. it accelerates at 0.30 m/s2 for 3.5 s , then travels without acceleration for 74 s and finally decelerates at -0.60 m/s2 for 1.8 s to reach the counter where the pharmacist will take the medicine from the robot.
The radius of a vanadium atom is 130 pm. how many vanadium atoms would have to be laid side by side to span a distance of 2.54 mm?
The number of vanadium atoms are 9769230.
To find the number of vanadium atom, the given values are,
radius of vanadium atom = 130 pm
distance = 2.54 mm
What is Vanadium?Vanadium is a chemical element and the symbol of vanadium is V.The atomic number of vanadium is 23.The crystal structure of vanadium is Body centered cubic.Let us assume that a vanadium atom has a spherical shape.
diameter of a sphere = 2 x radius of the sphere
Thus,
Radius of a vanadium atom = 130 pm
= 130 x 10⁻¹² m
The diameter of a vanadium atom = 2 x radius
= 2 x 130 x 10⁻¹²
= 260 x 10⁻¹² m
Given a distance of 2.54 mm = 2.54 x 10⁻³ m,
The number of vanadium atoms required to span the distance,
= ( 2.54 x 10⁻³ m) / ( 260 x 10⁻¹² m)
= 9769230.
Therefore, the number of vanadium atom that would span a distance of 2.54 mm is 9769230.
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The demand function for product x is given by q subscript x superscript d equals 360 minus 7 p subscript x. how much consumer surplus do consumers receive when p subscript x equals 11?
The demand function for product x is given by q subscript x superscript d equals 360 minus 7 p subscript, consumer surplus do consumers receive. increase by 35,000 units of the good, when p subscript x equals 11.
The sum of the patron surplus and producer surplus is the total gains from trade. Consumer surplus consumers measures the benefit to buyers of participating in a very market.
It's measured because the amount a buyer is willing to purchase is decent minus the number a buyer actually pays for it. The total surplus in an exceedingly market consumers could be a measure of the overall wellbeing of all participants during a market.
Consumer surplus is the difference between willingness to get hold of an honest and also the price that customers actually purchase it. Consumer surplus is an economic measurement to calculate the benefit (i.e., surplus) of what consumers are willing to obtain an honest or service versus its value. The patron surplus formula is predicated on a theory of utility.
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If earth experienced an iron shortage, where could astronomers direct cosmic mining equipment to find more?
a.
the cores of the other terrestrial planets
b.
the rings of saturn and uranus
c.
the surface of the martian moons
d.
the atmosphere of jupiter
More iron could be found from the cores of the other terrestrial planets. Option A
What is iron?Iron is one of the elements that could be found on earth. This element is present in abundant amounts in the earth's core and ranks as the fourth most abundant element in the core of the earth.
The earth has a lot more deposit of iron in it. We know that earth lies at the center of the solar system for the sole reason that it is habitable. No other planet in the solar system is habitable though efforts are underway to make the other planets equally habitable.
Iron can also be found in the cores of other terrestrial planets but the amounts may be less than the amount of iron that is found on earth. As such, If earth experienced an iron shortage, astronomers could direct cosmic mining equipment to the cores of the other terrestrial planets find more.
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8 m N & 5 m 30° N of E
Draw and add the vectors.
The Pythagorean theorem can be used to find the resultant, which has a magnitude of 15.6 kilometers. The answer is displayed beneath the diagram.
A resultant vector that is directed both north and east can be created by adding together two displacement vectors with magnitude and direction of 11 km north and 11 km east. The hypotenuse of a right triangle is the result of adding the two vectors' head to tail as shown below. The right triangle's sides are 11 km and 11 km long. Scaled vector diagrams are frequently used to represent vector quantities. An arrow drawn to scale and pointing in a particular direction is used in vector diagrams to represent a vector.
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A certain reaction has an activation energy of 43.41 kj/mol. at what kelvin temperature will the reaction proceed 7.50 times faster than it did at 317 k?
The temperature required to increase the reaction rate by 7.50 times will be 332.63 K .
The speed at which a chemical reaction proceeds is known as the reaction rate.
We are given that ,
The activation energy = E = 43.41 kj/mol
Initial temperature = T₁ = 317 k
Therefore we can write as, the temperature at which reaction has 7.50 times faster than at 317 K be T₂ . Then the rate of a reaction increases because the rate constant increases with temperature.
The relation between temperatures, rate constants, and activation energy is given as,
(k₁/k₂) = E/R [(1/T₁ ) - (1/T₂)]
Where, k₁ is rate constant at temperature T₁ and k₂ is rate constant at temperature T₂ & R is gas constant having value 8.314 j/kmol .
Thus putting all the given values in above equation then we get,
7.50k/k = (434100 j/mol)/(8.314j/kmol)[(1/317k) - (1/T₂)]
7.50 = 52213.1344 k [ 0.00315 k⁻¹ - 1/T₂]
1/T₂ = 0.00315 K⁻¹ - (7.50/52213.1344)
T₂ = 332.63 K
Therefore the temperature required to increase the reaction rate by 7.50 times is given as T₂ = 332.63 K
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For motion along a straight line it ______ possible for speed to be constant while acceleration is not zero.
For motion along a straight line it NOT possible for speed to be constant while acceleration is not zero.
If the acceleration is not zero means that the speed has changed whether to higher (positive acceleration) or lower (negative acceleration) if the object is slowing down.
When the speed is constant, it means that the velocity at the beginning of the motion and the velocity at the ending of the motion are the same.
What is acceleration?It is a physical quantity that indicates the variation of velocity as a function of time, it is expressed in units of distance per time squared e.g.: m/sec2 ; km/h2
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Both astronomy and astrology study the stars. which one is considered a natural science? explain your reasoning.
Astronomy is a branch of natural science since it focuses on the observation and prediction of celestial occurrences using physical rules. Astrology is a branch of natural science since it involves watching and forecasting celestial events and has an impact on both human affairs and the natural world.
What do astrology and astronomy involve ?Everything in the universe excluding the atmosphere of our planet is covered in the study of astronomy. The Sun, Moon, planets, and stars are examples of celestial objects that humans can view with our unaided eyes. It also includes objects like remote galaxies and tiny particles, which we can only see with the use of telescopes or other devices.
Astrology is a sort of divination that includes predicting events that happen on Earth and in the world of Humans by observing and interpreting the fixed stars, the Sun, the Moon, and the planets.Learn more about Astrology and astronomy here:
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The distance between mankato, mn, and duluth, mn, is approximately 237 miles one way. how far is that in kilometers?
The distance between Mankato and Duluth is 237 miles i.e. equal to 381.415 kilometer approximately.
Distance can be define as, the total movement of an object without any regard to direction. Thus in very simple word the distance between two points is the length of the line segment that connects them. The distance between two points is always positive.
A line segment is a term of geometry that, the part of a line having two endpoints
The distance between Mankato and Duluth = 237 miles
1 miles = 1.60934 kilometers
237 miles = 237 × 1.60934 kilometers
237 miles = 381.41358 kilometers
Therefore ,we can write the distance between Mankato and Duluth in kilometers is 381.4 kilometers.
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find the electric field of the homogeneously charged cylinder with no holes. derive an algebraic expression for the electric field for a point inside the cylinder, and for a point outside.
The algebraic expression for the electric field for a point
Inside the cylinder, E = σ R / ε[tex]_{0}[/tex] rOutside the cylinder, E = 0We know that,
Φ = Q / ε[tex]_{0}[/tex]
Φ = EA
Q = σ A
where,
Φ = Electric flux
Q = Total charge
ε[tex]_{0}[/tex] = Electric constant
σ = Surface charge density
A = Area
Area of cylinder = 2 π R l
where,
R = Radius of cylinder
l = Length of cylinder
To calculate electric field at a point outside the cylinder, a gaussian surface is considered outside the cylinder with a radius r ( > R ) and length l. The flux on Gaussian cylinder is equal to the charge on surface of the cylinder.
Q = σ 2 π R l
The electric flux on the surface of cylinder is
Φ = σ 2 π R l / ε[tex]_{0}[/tex]
The electric flux on the Gaussian cylinder is
Φ = E 2 π r l
On equating both,
σ 2 π R l / ε[tex]_{0}[/tex] = E 2 π r l
E = σ R / ε[tex]_{0}[/tex] r
This is the equation for electric field at a point outside the cylinder.
To calculate electric field at a point inside the cylinder, a gaussian surface is considered inside the cylinder with a radius r ( < R ) and length l.
E 2 π r l = 0 ( Since there is no flux created inside a closed cylinder )
E = 0
This is the equation for electric field at a point inside the cylinder.
Gauss law states that the total flux outside a closed surface is directly proportional to net charge enclosed by the surface.
Therefore, the algebraic expression for the electric field for a point
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6. Why might a small increase in the dimensions of an object cause a large change in
volume?
Answer:
Because volume is determined as the product of length and width as well as height of an object.So change in any dimension can change the other two dimensions as well which brings about a greater change in volume by carrying out the product of the dimensions .
Explanation:
Length x width x height = Volume of a regular shaped object
set up the experiment as follows:
1. make a small hole in the cardboard. it should be 4 inch from one edge and centered.
2. pull the string or thread through the hole in the cardboard, and tie the ends together to form a loop.
3. slide a large paperclip onto the string, and bend one end out slightly to act as a hook.
4. place a nonbreakable object, such as a kitchen utensil, on the cardboard.
5. select two nonbreakable objects with holes that can be hung on the hook.
what two objects will you select to hang on the hook?
The two objects that I would select to hang on the hook are scissors and stainless-steel cup.
The concept of Balanced ForcesForce symmetry
Balanced forces are those that have opposing directions and equal sizes. One definition of equilibrium is a state of balanced forces.
When the forces are in balance, there is no change in direction.
The sum of balanced forces is always zero. Merging vectors
The momentum or direction of an object cannot be changed by balance forces.
A balanced force keeps an object moving at a steady speed. (Newton’s First Law of Motion)
The Concept of unbalanced forcesAsymmetry of forces
Forces that are not equal in size and differ in direction, always set something moving. (Can alter an object’s direction or speed)
The combined force is equal to the difference between two unbalanced forces acting in opposing directions.
The combined force is equal to the sum of the two unbalanced forces acting in the same direction.
The net force is equal to the resultant when the forces are at right angles.
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Answer:
Explanation:
The two objects that I would select to hang on the hook are scissors and stainless-steel cup.
The concept of Balanced Forces
Force symmetry
Balanced forces are those that have opposing directions and equal sizes. One definition of equilibrium is a state of balanced forces.
When the forces are in balance, there is no change in direction.
The sum of balanced forces is always zero. Merging vectors
The momentum or direction of an object cannot be changed by balance forces.
A balanced force keeps an object moving at a steady speed. (Newton’s First Law of Motion)
The Concept of unbalanced forces
Asymmetry of forces
Forces that are not equal in size and differ in direction, always set something moving. (Can alter an object’s direction or speed)
The combined force is equal to the difference between two unbalanced forces acting in opposing directions.
The combined force is equal to the sum of the two unbalanced forces acting in the same direction.
The net force is equal to the resultant when the forces are at right angles.
During the time that a planet is in its period of apparent retrograde motion, _________.
Answer:
The center of the retrograde motion occurs at the planet's opposition which is when it is exactly opposite the Sun.
Explanation:
One method of estimating the temperature of the center of the sun is based on the assumption that the center consists of gases that have an average molar mass of 2. 00 g/mol. If the density of the center of the sun is 1. 40 g/cm3 at a pressure of 1. 30 x 109 atm, calculate the temperature.
By using ideal gas approximation, the sun's temperature is 2.27 x 10⁷ K.
We need to know about ideal gas to solve this problem. The ideal gas will follow the rule
P . V = n . R . T
where P is pressure, V is volume, n is the amount of substance, R is the ideal gas constant (8.31 J/mol.K) and T is temperature.
From the question above, we know that:
Mr = 2 g/mol
ρ = 1.4 g/cm³
P = 1.3 x 10⁹ atm = 1.32 x 10¹⁴ Pa
m(sun) = 1989 x 10³⁰ g
Find the amount of sun substance
n = m / Mr
n = 1989 x 10³⁰ / 2
n = 994.5 x 10³⁰ mol
Find the volume of sun
V = m/ρ
V = 1989 x 10³⁰ / 1.4
V = 1420.71 x 10³⁰ cm³
V = 1.42 x 10²⁷ m³
By substituting the parameters, we get
P . V = n . R . T
1.32 x 10¹⁴ . 1.42 x 10²⁷ = 994.5 x 10³⁰ . 8.31 . T
T = 2.27 x 10⁷ K
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The 88 sectors into which astronomers today divide the celestial sphere (the whole sky) are called:___.
The 88 sectors into which astronomers today divide the celestial sphere (the whole sky) are called constellations.
What is constellations?A constellation is a group of stars that make an imaginary shape in the night sky.
They are usually named after mythological characters, people, animals and objects
Astronomers divided the entire sky into 88 sectors, or constellations; this international system codifies the naming of stars and star patterns that began in prehistoric times.
Thus, the 88 sectors into which astronomers today divide the celestial sphere (the whole sky) are called constellations.
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When the electron in h is in the 1st excited state the energy range for range 2 is?
For electron in 1st excited state of H the energy range for range 2 is 1.9eV-3.4eV
Why are photons emitted?The excited state of an atom is typically not the most stable state. There is a chance that an electron will drop spontaneously from one excited state to one with a lower (more negative) energy level. An electron releases the extra energy, which is positive, when it moves from one level to another by emitting a photon
What are the three groups for first excited state of hydrogen where the photon interacts with hydrogen?The various groups are
1)Range 1: 0eV to 1.8eV
2)Range 2: 1.9eV to 2.4eV
3)Range 2:>3.5eV
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How does the interaction of a nonelectrolyte and water differ from the interaction of an electrolyte and water? give examples of each.
The interaction of a nonelectrolyte and water differs from the interaction of an electrolyte and water because nonelectrolytes do not conduct current while electrolytes can conduct current.
The solution that does not let the current pass through any state either liquid or molten is called nonelectrolyte.
For example, sugar and alcohol are nonelectrolytes.
On the contrary, electrolytes are those mediums, compounds, or substances that allow electric charges to pass through them.
In this way they conduct electricity.
For example, when an ionic substance dissolved in water forms an ionic solution it let the current pass through such as NaCl, HCl, etc. Sodium chloride dissolves in water forming ions of sodium and chloride ions and making the solution electro conductive.
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If the releases 39.4 kj of energy, how many kilocalories does it release? (1 cal = 4.184 j) (round off answer to 2 decimal place
By using unit conversion, the energy released in kilocalories is 9.42 kcal.
We need to know about unit conversion to solve this problem. There are several energy units which able to explain how much the energy is such as calories and joule. The energy unit can be converted to another unit by unit conversion. The unit conversion of calorie to joule is
1 cal = 4.184 joule
From the question above, we know that
E = 39.4 kJ
By using the unit conversion, we can convert the energy into calorie
E = 39.4 kJ
E = 39.4 x 10³ J
E = 39.4 x 10³ / 4.184 cal
E = 9.42 x 10³ cal
E = 9.42 x 10³ /10³ kcal
E = 9.42 kcal
Hence, the energy released in kilocalories is 9.42 kcal.
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What does Newton's third law describe?
A space shuttle orbiting earth travels a distance of about 30 miles in 6 seconds. what is the average speed of the space shiuttle in miles per second?
The average speed of the space shuttled in miles per second is 5 miles.
How big is the Space Shuttle?The Space Transport is a resigned, to some degree reusable low Earth orbital rocket framework worked from 1981 to 2011 by the U.S. Public Flying and Space Organization as a feature of the Space Transport program. It's true program name was Space Transportation Framework, taken from a 1969 arrangement for an arrangement of reusable rocket where it was the main thing financed for improvement. A completely collected transport is 184 feet tall and weighs 4,500,000 pounds. The cove is 15 feet in breadth and 60 feet in length; sufficiently enormous to fit a school transport or 50,000 pounds of payload. The bus's speed on circle is around 17,500 mph. The bus has three primary components, the orbiter, the twin strong rocket sponsors and the outer tank.
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Please help question in the the picture below.
Answer:
C. Mass and volume
Explanation:
All three chemical elements found on the periodic table will for sure have which of these two characteristics: C. mass and volume.
What is periodic table?Periodic table can be defined as an organized tabular array of all the chemical elements arranged in order of increasing atomic number (number of protons), in rows.
What is a chemical element?A chemical element can be defined as a pure substance that comprises atoms having the same atomic number (number of protons) in its nuclei and as such, it is the primary constituent of matter. Also, a common characteristics for all chemical elements found on the periodic table is mass and volume.
In Chemistry, some examples of a chemical element include the following:
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Complete Question:
A student is asked to describe three random elements found on the periodic table. All three elements will FOR SURE have which of the two following characteristics?
A. similar color and texture
B. shininess and value
C. mass and volume
D. similar boiling and freezing points
Light can show us that an object is rotating when one side is moving toward us and one side is moving away using:_____.
Light can show us that an object is rotating when one side is moving toward us and one side is moving away using rotational Doppler effect.
Doppler effect in light is the change in frequency of light observed by the observer due to relative motion of source in relation with the observer.
When the source of light moves towards the observer frequency increases and the wavelength decreases causing a blue shift. But when the source of light moves away from the observer frequency decreases and the wavelength increases causing a red shift.
Therefore, light can show us that an object is rotating when one side is moving toward us and one side is moving away using rotational Doppler effect.
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When a retailer offers t-shirts in small, medium, large, and x-large, and in 25 colors, the competitive strategy they are using is?
When a retailer offers t-shirts in small, medium, large, and x-large, and in 25 colors, the competitive strategy they are using is Variety
What is competitive strategy ?A business uses a set of rules and practises known as a competitive strategy to acquire a competitive edge in the market. It is the procedure for choosing and carrying out strategies that enable a company to strengthen its position in the market.
This plan was developed after evaluating the opportunities, threats, strengths, and weaknesses of the opposition and contrasting them with your own.Establishing a competitive advantage in the market is the goal of a competitive strategy. Porter's Five Forces Model is the main instrument for assessing an organization's competitive position in the market.Learn more about Competitive strategy here:
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A(n) _________ uses capacitors and inductors that are tuned to remove particular harmonic frequencies.
A passive harmonic filter uses capacitors and inductors that are tuned to remove particular harmonic frequencies.
A passive harmonic filter is the part of motor systems and utilizes capacitors to carry out different functions.
It is an important component that is installed in the inner side of the motor drive structure to block harmonic frequency.
There are diverse frequency drives in the motor system that produce a lot of distortion.
The purpose of harmonic filter is to reduce the noise produced by distortion.
Furthermore, if the problem is not adequately addresses then it can cause damage to nearby devices or equipment.
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starting from rest, a cart moves to the right in a straight line along a track. the motion of the cart is represented by the dots shown, recorded at equal time intervals. which of the following best represents the acceleration vectors at the beginning, middle, and end of the motion?
The second option is the correct answer to the question. The complete question is attached
In the beginning, the cart started from rest and moved to the right. The movement represents positive acceleration
In the middle, there is no change in velocity hence no acceleration. This means that the value of acceleration is zero
A the end, the cart had a negative acceleration which brings the cart to rest.
What is acceleration?Acceleration refers to the change in velocity with time. Usually when there is no change in velocity acceleration is zero. The value can also be positive or negative depending on the velocity.
When there is an increase in velocity, the result is positive acceleration but in a situation when there is a decrease in velocity the result is negative acceleration. At the peak pf negative acceleration the result is to put the object accelerating to a stop.
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The ideal gas law is represented by PV=nRT. As volume is held constant and the temperature increases, how would the pressure be expected to change? (1 point)
1. It would remain constant
2. It would decrease
3. It would become zero
4. It would increase
The pressure would increase as per Charle's Law, therefore the correct answer is option 4.
What is an ideal gas?It is an imaginary gas for which the volume occupies by it is negligible, this gas does not exist in a practical situation and the concept of an ideal gas is only the theoretical one,
PV = nRT
As given in the problem statement we have to find out if the volume is held constant then what would happen to the gas if the temperature is increased,
For constant volume, the pressure of a gas is directly proportional to the temperature of the gas,
Thus, the pressure would increase as per Charle's Law, therefore the correct answer is option 4.
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Select the correct answer. Peter throws a snowball at his car parked in the driveway. The snowball disintegrates as it hits the car. By Newton's third law, you know that both the car and the snowball exert a force on each other. What can you say about the magnitude of the forces exerted by the snowball and the car? OA The force exerted by the car is more than the force exerted by the snowbalL OB. The force exerted by the car is less than the force exerted by the snowball. OC The force exerted by the car is equal to the force exerted by the snowball. OD. The force exerted by the car is zero.
Answer:
OA The force exerted by the car is more than the force exerted by the snowbalL
Explanation:
If the ball's force is more than the force exerted by the car then car will be moved
According to einstein’s theory of relativity, what happens to the mass of an object as the object approaches the speed of light?
When an object approaches the speed of light then the he objects mass become infinite.
Einstein theory of relativity is actually fairly simple. It is based on two very simple ideas.
Principle of relativity. Principle of constancy of lightspeed.relativity describes the situation when.
Either body is moved at a speed close to that of the light. Or gravity is very very strong. Or both.in these cases Newtonian theory does not work.
But when the speed are much slower than light. And gravity is not too strong. At that point relativity and Newtonian theory are exactly the same.
the mass of an object becomes infinite as the object approaches the speed of light .
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The only substance near earth's surface that is found naturally in the current atmosphere as a solid, liquid, and a gas is:_________
Water is the only substance that is naturally present near the surface of the planet in the current atmosphere as a solid, liquid, and a gas.
What is the atmosphere ?The gaseous mixture that covers the planet is its atmosphere. The Earth's atmosphere contributes to the viability of life. In addition to giving us air to breathe, it protects us from the majority of the Sun's harmful ultraviolet (UV) radiation, increases the surface temperature of our planet by around 33° C (59° F) due to the greenhouse effect, and mainly eliminates dramatic temperature variations between day and night. There is an atmosphere on each of the other planets in our solar system, but none of them has the same proportion of gasses or layered structure as Earth's atmosphere.
The most prevalent elements are nitrogen and oxygen, which make up about 78% of dry air (N2) and about 21% of it, respectively (O2). Argon, carbon dioxide (CO2), and numerous other gases are also present in the atmosphere, although at considerably smaller concentrations; each makes up less than 1% of the total gas mixture. Water vapor is also present in the atmosphere. Water vapor is present, but its usual concentration is only about 1%. Additionally, there are a lot of tiny liquids and solids "floating" in the atmosphere. The term "aerosols" refers to a group of particles that also includes dust, pollen, spores, salt from sea spray, volcanic ash, smoke, and other substances.
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