The particles of a solid have fewer options available to them than the particles of the same molecules in a liquid.
Because the interactions between particles are stronger in a solid, there are fewer ways that they can move around, and this limits their freedom to change position.
In a liquid, there is no boundary. The amount of fluid you have depends on the container and the size of your container; the more surface area you have, the more fluid there is. The only way to define the boundaries of a solid is by using a mathematical formula.
For example, if you stand at the bottom of a cliff, then drop something off it, making for another particle of equal size which is placed at some random point on the cliff (this is not obvious), then what you will find at the end of your experiment is that it is less probable that there will be one particle in front of the second one than it would be if an equal volume of liquid was present instead.
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An object has a kinetic energy of 180 J and a mass of 45 kg, how fast is the object
moving?
Your answer
An object has a kinetic energy of 180 J and a mass of 45 kg, The object is moving fast with 2.83 m/sec
What is kinetic energy?Kinetic energy is the energy of motion, which can be observed as an item, particle, or collection of particles moving. Kinetic energy is used by any moving object: a person walking, a baseball being thrown, a crumb falling off a table, and a charged particle in an electric field are all instances of kinetic energy at work.
Given that,
Kinetic energy (K.E) = 180 J
Mass (m) = 45 kg
As we know, K.E = [tex]\frac{1}{2}mv^{2}[/tex]
Now we have to calculate the speed or velocity (v)
v = [tex]\sqrt{(2*K.E.)/m}[/tex]
v = [tex]\sqrt{(2*180)/45}[/tex]
v = 2.83 m/sec
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Which reading is given to one tenth of a millimetre?
Vernier calipers have a resolution of 1/10 of an inch.
Vernier calipers—what are they?To determine the diameter of circular objects, a vernier caliper is typically employed. The vernier caliper's elongated jaws can precisely measure the circumference of rounded objects.
A vernier caliper has two scales: a moving vernier scale in addition to the primary, fixed scale. The primary scale displays millimeter readings.
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Determine the required radius for the Sun to become a Black Hole. Write the name for the radius
Given:
The mass of the sun is
[tex]M_{sun}=1.989\times10^{30}\text{ kg}[/tex]The universal gravitational constant is
[tex]G\text{ = 6.67}\times10^{-11}\text{ Nm}^2\text{ /kg}^2[/tex]The speed is
[tex]c=\text{ 3}\times10^8\text{ m/s}[/tex]To find the required radius for the sun to become a black hole.
Explanation:
The radius can be calculated as
[tex]\begin{gathered} r=\frac{2GM}{c^2} \\ =\frac{2\times6.67\times10^{-11}\times1.989\times10^{30}}{(3\times10^8)^2} \\ =2948\text{ m} \end{gathered}[/tex]The name of the radius is Schwarzschild radius.
uppose a heat engine absorbs 2,403 j from the hot reservoir while rejecting 931 j to the cold reservoir. calculate the engine's efficiency.
Suppose a heat engine absorbs 2,403 j from the hot reservoir while rejecting 931 j to the cold reservoir. The engine's efficiency is 0.62
What is heat engine?A heat engine is a device used in engineering and thermodynamics that transforms heat into mechanical energy that may be utilized to do mechanical labor. It accomplishes this by lowering the temperature of a functioning substance from its higher condition.
Efficiency may be represented as a ratio: output input. The total amount of beneficial work accomplished, excluding waste and spoilage, is known as output or work output. Efficiency can also be expressed as a percentage by dividing the ratio by 100.
η = 1 - (931/2403)
= 0.62
Heat engine absorbs 2,403 j from the hot reservoir while rejecting 931 j to the cold reservoir. The engine's efficiency is 0.62.
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What is the technological advances that we have thanks to the types of energy and thermal energy?
Power generation technologies such as coal-fired power plants nuclear reactors and wind turbines offer various strengths and weaknesses to power generation companies and their customers.
Renewable Energy Technologies is an umbrella term for energy production from renewable sources such as solar wind, hydro hydroelectric tidal biomass biofuels, and waste and geothermal. In my opinion, the most important technical need related to energy is to make energy sources cheaper safer, and more socially acceptable.
This is reflected in an inexhaustible resource that is environmentally friendly and cheap to process to generate energy. Renewable energy sources play an important role in ensuring sustainable energy with low emissions. It is already recognized that renewable energy technologies can significantly meet power demand and reduce emissions. The country has developed sustainable methods for its energy supply in recent years.
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earth's orbit is currently elliptical enough to make the intensity of sunlight vary by 6 percent. the largest earth-sun distance (and lowest intensity sunlight) occurs
Earth's orbit is currently elliptical enough to make the intensity of sunlight vary by 6 percent. the largest earth-sun distance occurs in every january.
When seen from above the Northern Hemisphere, the Earth circles the Sun at an average distance of 149.60 million kilometres in a counterclockwise manner. Earth has travelled 940 million kilometres in 365.256 days, the length of one orbit. Every twelve months, the earth orbits the sun. With the sun at one of the ellipse's foci, the orbit has a slightly elliptical form. A plane with the sun in it is defined by the orbit. It takes the Earth 149 million kilometres to travel to the sun on average. The path taken by Earth is not a perfect circle. It is oval-shaped, or elliptical. This implies that Earth is closest to the Sun at a certain point in its orbit, and farthest from the Sun at an other point.
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in order for the earth centered model of the universe to be true, some of the planets had to move backwards in orbit from time to time. this type of motion is called
Answer:
"retrograde motion" and occurs when some of the planets are moving nearly parallel to the earth and the faster motion of the earth causes the planet in question to be moving backwards relative to the night sky
Retrograde motion is the term used to describe how some planets move almost identically to the earth, but are traveling backward in the night sky due to the earth's quicker velocity.
What is a Planet?Any moderately large natural body that rotates in an orbit around the Sun or another star and is not emitting energy from intrinsic nuclear fusion reactions is referred to as a planet. In addition to the restrictions mentioned above, some scientists sometimes place restrictions on qualities like size, form, or weight.
The term "planet" refers to the celestial bodies of Earth. The International Astronomical Union (IAU), which is tasked by the scientific community with categorizing celestial bodies, lists 8 planets orbiting the Sun; they are Mercury, Venus, Earth, Neptune, etc., in increasing order of increasing distance.
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You are helping to repair a roof by loading equipment into a bucket that workers hoist to the rooftop. If the rope is guaranteed not to break as long as the tension does not exceed 450 N and you fill the bucket until it has a mass of 42 kg, what is the greatest acceleration that the workers can give the bucket as they pull it to the roof?
10.72 m/s^2 is the greatest acceleration that the workers can give the bucket as they pull it to the roof.
Definition of accelerationacceleration is the speed and direction change over time of a moving object. When anything moves faster or slower, it is said to be accelerating or decelerating in a straight line. Because the direction is always changing, travel on a circle accelerates even while the speed is constant.
The Acceleration Equation: What Is It?According to Newton's second law of motion, the acceleration of an object is defined as the net force applied divided by its mass, or a = F m. This equation for acceleration can be used to calculate an object's acceleration when its mass and the net force acting on it are known.
Given,
force = 450N
mass = 42kg
acceleration = ?
a = f/m is acceleration formula.
a = 450 / 42 = 10.72 m/s^2
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rank the following kinds of electromagnetic radiation in order of decreasing wavelength. rank the types of electromagnetic radiation by their wavelength from longest to shortest. to rank items as equivalent, overlap them.
Answer:
In order of decreasing wavelength :
Radio Waves
Microwaves
Infrared Light
Red light
Violet light
UV Light
X-Rays
Gamma Rays
Order the three bars in order of lowest to highest melting point of the materials.
a. Highest melting point
b. Intermediate melting point
c. Lowest melting point
Order of the three bars from the lowest to the highest melting point of the materials can be arranged from bottom to top as given below
(c) Lowest melting point - high intermolecular forces
(b) Intermediate melting point - medium intermolecular forces
(a) Highest melting point - low intermolecular forces
The matter has three different states and all of them have different melting points depending on the type of intermolecular forces in them.
So far, the melting point of a substance refers to the point or temperature at which it undergoes the transition phase to turn from a solid to a liquid state.
When a substance starts melting it reaches the intermediate point or the equilibrium point where the solid and liquid phases co-exist.
The melting point also depends on the atmospheric pressure standard is 100 kilopascal or 100 Kpa.
In general, a substance passes through three phases of melting point i.e. at first the melting point is lowest, then reaches to equilibrium point or intermediate point, and then to the highest point where it completely melts overcoming the intermolecular forces.
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what was the acceleration for the whole fall?
The acceleration for the whole fall = 6 m/s²
Since the object falls freely without being pushed, we are able to conclude it falls with constant acceleration.
As per the formula,
Acceleration = [tex]\frac{Final Velocity - Initial Velocity}{Total Time}[/tex]
The Final Velocity of the space - mobile would be the total displacement it covered in the given time.
Final Velocity = 96/4 m/s
= 24 m/s
The Initial Velocity will be zero since as given in the image attached that the object falls freely with no external force.
Initial Velocity = 0/0 m/s
= 0 m/s
Total time taken = 4 sec
∴ Acceleration of the space - mobile = [tex]\frac{24-0}{4}[/tex]
= 24/4 m/s²
= 6 m/s²
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What is the mass of a truck if it produces a force of 14,000 N while accelerating at
a rate of 5 m/s² ?
F=_
m=
a=
Both the truck's force and its rate of acceleration are provided to us: Force applied (F) = 14,000 N, Acceleration (a)= 5 m/s².
Calculating,
the truck's mass using Newton's second law of motion.
F = ma
(where F is the applied force, m is the object's mass, and an is the object's acceleration.)
replacing the variables:
14000 = (m)* 5
m = 14000/5
m = 2800kg
Therefore,
the mass of truck is 2800 kg
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Force vs acceleration with 3 different massesacceleration (m/s/s) The graph above shows 3 different masses which were pushed with increasing forceover time and their acceleration was recorded.Match the correct mass with the graph line above.
Take into account that the Newton Second law is given by the following formula:
F = m·a
if you solve the previous formula for a, you obtain:
a = (1/m)·F
In the graph, you can notice that acceleration a is function of force F, just as in the previous formulation. The slope of the lines of the graph is 1/m, where m is the mass.
As you can notice in the formula for a, if m is greater, the slope is smaller.
Then, the blue line belongs to the smallest mass, the gray line belongs to the greatest mass, and the orange line is the middle mass.
Hence, you have:
- blue line - 40 kg
- gray line - 200 kg
- orange line - 100 kg
Does changing the compound inequality x>-3 and x <
3 from "and" to "or" change the solution set? Explain.
The changing the compound inequality x>-3 and x <3 from "and" to "or" change the solution set Yes, if you change the type of compound inequality, the solution set will change. The solution set of the “and” compound inequality contains values for x that satisfy both inequalities, which are values between –3 and 3. The solution set of the “or” compound inequality contains values for x that satisfy either or both inequalities, which includes all real numbers.
What is compound inequality?An compound inequality is a statement that has two inequality statements joined by either the word "or" or the word "and." "And" indicates that both statements of the compound sentence are true at the same time. This is the overlap or intersection of the solution sets of the individual sentences.
There are two types of additive inequality.
conjunction disjunction .These compound inequalities sometimes appear as two simple inequalities separated by the word AND or OR. When solving compound "and/or" inequalities, begin by solving each inequality separately.
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Answer:)
Sample Response: Yes, if you change the type of compound inequality, the solution set will change. The solution set of the “and” compound inequality contains values for x that satisfy both inequalities, which are values between –3 and 3. The solution set of the “or” compound inequality contains values for x that satisfy either or both
Explanation:) hope this helps have a great day !:).
Brainliest would be very very appreciated.
If the dna content of a diploid cell is x in the g1 phase of the cell cycle and 2x at metaphase of meiosis i, then the dna content of the same cell at metaphase of meiosis ii will be.
DNA content of the same cell at metaphase of meiosis ii will be 0.25x 21 0.5
Metaphase is a level of mitosis inside the eukaryotic cell cycle in which chromosomes are at their second-most condensed and coiled degree. those chromosomes, carrying genetic information, align in the equator of the mobile earlier than being separated into every of the two daughter cells.
In metaphase, the centromeres of the chromosomes convene themselves at the metaphase plate (or equatorial plate), an imaginary line this is equidistant from the two centrosome poles. This even alignment is because of the counterbalance of the pulling powers generated by way of the opposing kinetochore microtubules, analogous to a tug-of-battle among human beings of equal electricity, ending with the destruction of B cyclin.
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True or False—Tension is the result of opposite forces in a connector, such as a string, rope, chain or cable, that pulls each point of the connector apart in the direction parallel to the length of the connector. At the ends of the connector, the tension pulls toward the center of the connector.
Tension is the result of opposite forces in a connector. The tension pulls each object towards the center of the connector. Thus, the given statement is true.
What is Tension?
Tension is the opposite force that is exerted by a rope, string, cable, or similar object on one or more objects. Anything which is pulled, hung, supported, or swung from a rope, string, and cable, etc. is subjected to the tension force. Like all the other forces, tension can also accelerate objects or cause them to deform from their original structure.
Newton's third law is that when a contact force acts between any two objects, both the objects experience the same magnitude of force, but in opposite directions to each other. In tension, the two objects which are attached with the rope pull on each other.
To determine the magnitude of tension, a formula is used:
2T sin(α) = m × g
where m × g represents is the weight of the suspended object.
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cm. the current in the solenoid is increasing at a uniform rate of 36.0 a>s. what is the magnitude of the induced electric field at a point near the center of the solenoid and (a) 0.500 cm from the axis of the solenoid; (b) 1.00 cm from the axis of the solenoid?
The induced emf near the solenoid's center has a magnitude of 0 V/m.
At a location 0.500 cm from the solenoid's axis, the induced electric field has an intensity of 8 x 105 V/m.
the settings provided;
N = 700 turns/m for the solenoid's number of turns, and r = 2.5 cm for the wire's radius. I = 36 A/s for the solenoid's current.The following formula is used to determine the size of the induced emf close to the solenoid's center:
B = 4π × 10⁻⁷ × 700 × 36
= 0.032 T/s
E = r/2(dB/dt)
E = 0/2*(0.032)
E = 0 V/m
The following formula is used to determine the strength of the induced electric field at a position 0.500 cm from the solenoid's axis:
E = r/2(dB/dr)
E = {(0.5 * 10⁻²)/2}*(0.032)
E = 8 × 10⁻⁵ V/m
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A quarterback throws the football to a stationary receiver who is 28.4 m down the field.
The football is thrown at an initial angle of 38.6 to the ground.
The acceleration of gravity is 9.81 m/s?.
a) At what initial speed must the quarterback throw the ball for it to reach the receiver?
Answer in units of m/s.
The following question is about football movement and can be answered by using the equations of projectile launch :
Initial speed is: v = 16.89 m / s
Maximum height is: y = 14.26m
Given parameters
Horizontal distance x = 28.4 m
Launch angle tea = 38.6º
To find,
The initial speed and the maximum height
R = [tex]v^{2}[/tex]sin2θ/g
[tex]v^{2}[/tex]= g*r/sin2θ
calculating,
v² = 9.8 *28.4 / sin (2 *38.6)
=[tex]\sqrt{278.32/0.9751}[/tex]
v = 16.89 m / s
The vertical speed is zero when height maximum.
v² = v² - 2 g y
0 = v² - 2g y
y = v²/2g
y = 14.26m
Initial speed is: v = 16.89 m / s
Maximum height is: y = 14.26m
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The table below shows the distances of five planets from the sun.
If a spacecraft travels 3.6 AU per year, in how many years would it travel from Earth to Venus? (1 point)
O 0.05 years
O 0.07 years
O 0.08 years
O 0.09 years
Answer:
0.08 years
Explanation:
Identify the nature and point of action of the third force acting on the wheelbarrow.Write down an equation showing the relationship between the three forces
Wheelbarrow is a small cart which has a wheel in the front, and two supporting legs and two handles in the back. It is used for carrying loads.
Wheelbarrow is a second class lever. The three forces acting on a wheelbarrow are input force (applied force to move), output force (due to load) and the force due to fulcrum (or wheel) on one end.
The applied force and force due to wheel are in opposite directions, one acting upward and the other acting downward. The load force will be in between the applied force and the force due to wheel.
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factors affecting flotation
Answer:Buoyancy
Explanation: if you need to float you will need an equal buoyancy force to gravity like supposing a boat is 300Kg and its buoyancy force is so high that it matched perfectly with the force of gravity it would float
How many moles of ch4 are contained in 112 g of that substance? the molar mass of ch4 is 16 g/mol.
7 moles of CH₄ are contained in 112 g of that substance.
Describe the molar mass in detail?The weight of a single mole of a substance is its molar mass. The word "molar mass" refers to the amount of a certain chemical in grams that makes up one mole. The periodic table contains a list of the atomic masses that were utilized to compute the molar mass. The Avogadro's number reveals the number of particles in each mole.
The molar mass, also referred to as the molecular weight, is the total mass of the atoms needed to create a molecule per mole, represented in grams. Grams per mole are used to express molar mass.
Given mass = 112 g
Molar mass of CH₄ = ( 1 x 12 ) + ( 4 x 1) = 16 gmol-1
Number of moles = mass / Molar mass
Number of moles = 112 g / 16 gmol-1
Number of moles = 7 moles
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Based on the data provided in Chart 2, describe the relationship between the mass of the ice and the transfer of thermal energy in the investigation. Use evidence and scientific reasoning to support your answer.
Based on data in the chart, it can be concluded that as the mass increases then the thermal energy increases because thermal energy of a substance depends greatly on the temperature and mass of that substance
Thermal energy always moves from an area with a higher temperature to an area with a lower temperature. So, if a block of ice comes in contact with a substance that has lower temperature, such as liquid nitrogen or dry ice, then thermal energy move from the ice to the colder substance.
Mass measures the quantity of material in a sample ,therefore, thermal energy depends on the mass and the temperature of the object. The more the mass of the object, more particles are in the sample and thermal energy is also more.
Energy contained in the motion and vibration of its molecules is called thermal energy.
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the depth to which an inverted drinking glass must be pushed beneath the surface of water so that the volume of enclosed air is squeezed to half isquestion 5 options:20.6 m.76 cm.14.7 m.10.3 m.
The glass should be pushed down to a depth of 20.4 m to squeeze the volume of the air to half.
According to Boyle's law, when the temperature of the gas is constant.
The pressure and the volume are inversely proportional to each other.
Hence, it can be written,
P₁V₁= P₂V₂
Where, P₁ and V₁ are initial pressure and volume and P₂ and V₂ are final pressure and volume.
So, if the volume has to be decreased by half of the enclosed air.
V₂ = V₁/2
The pressure at the surface of water is 10⁵ Pa.
The density of the water is 10³ m kg/m³.
Hence, putting the values,
10⁵V₁ = V₁pgh/2
10⁵ = 9.8 x 10³ x h/2
h = 20.6m.
Hence, the glass should be drowned to a depth of 20.4 m.
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What type of motion is solved by using two components of horizontal and vertical direction.
a cd has a mass of 17.2 g and a radius of 6.12 cm. when inserted into a player, the cd starts from rest and accelerates to an angular velocity of 20.6 rad/s in 0.659 s. assuming the cd is a uniform solid disk, determine the net torque acting on it.
Assuming the CD is a uniform solid disk, the net torque acting on it is 1645.2492 g-cm^2/s^2.
The moment of inertia for a uniform disk of radium r and mass m is 1/2mr^2. Assuming that the CD undergoes angular acceleration to its final angular velocity, this acceleration will be
x= Δw / Δt
and the torque will be
y= |α= 1/2mr^2 * Δw / Δt
= 1/2 (17.2g) * (6.12cm) * (20.6 rad/s)/(0.659s)
= 1645.2492 g-cm^2/s^2
Therefore, the net torque acting on the CD is 1645.2492 g-cm^2/s^2.
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a daredevil tries to jump a canyon of width 10 m. to do so, he drives his motorcycle up an incline sloped at an angle of 15 degrees. what minimum speed is necessary to clear the canyon?
Minimum speed is necessary to clear the canyon is 14 m/s
What is speed ?
The speed of an object, also known as v in kinematics, is the size of the change in that object's position over time or the size of the change in that object's position per unit of time, making it a scalar quantity. The instantaneous speed is the upper limit of the average speed as the duration of the time interval gets closer to zero. [1] The average speed of an object in a period of time is the distance travelled by the object divided by the duration of the interval. Velocity and speed are not the same thing.
The parameters of speed are time divided by distance. The most often used unit of speed in daily life is the kilometre per hour (km/h), or miles per hour in the US and the UK. The SI's unit of speed is the metre per second (m/s) (mph). The knot is frequently utilised for maritime and air transport.
Horizontal range for a launch angle θ on a level surface is given by:
d=v2g
∴v2=gsin(2θ)
∴v2=9.8×10
v2=196
v=14m/s
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Two airplanes leave an airport at the same
time. The velocity of the first airplane is
650 m/h at a heading of 37.5°. The velocity
of the second is 650 m/h at a heading of 181°.
How far apart are they after 3.3 h?
Answer in units of m.
In 3.3 hours, the distance traveled by the first airplane heading at 37.5° at 650 mph is :a = 650*3.3 = 2145 miles.
The second airplane travels
b = 650*3.3 = 2145 mile
The angle between the two airplanes is
181° - 37.5° = 143.5°
Let c = the distance between the two airplanes after 3.3 hours.
From, Law of Cosines, obtain
c² = a² + b² - 2ab cos(143.5°)
= 4.6 x 10⁶ + 4.6 x 10⁶
c = 5718.15mile far apart are they
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Can someone check my answers plssss? (**)- means answer
1. The Earth only has climate change because of human activity.
True
False**
2. The Earth is currently experiencing _____.
An Ice Age**
A Carbon Cycle Age
A Thermal Phase Change
An Interglacial Age
3. TRICKY QUESTION: What in one thing that scientists DO NOT use to study climate change? Choose only ONE Answer.
Number of Living trees
Pollen in bogs/lakes
Tree Rings
Ice core samples**
4. Why were the humans able to develop agriculture at the beginning of the Holocene Period?
Woolly mammoth herds left behind large numbers of animal droppings for fertilizer.
The ice from the previous ice age melted and the climate was warmer.**
Cave Men developed metal working technology that helped them make plows.
Holocene period men were able to select cold loving plants as crops.
5. TRICKY QUESTION: Humans impact the environment and the climate on the Earth. There are daily activities that you do that can affect coral reefs in oceans far away. What should you NOT DO where you live to help protect them?
Use less energy.
Plant trees/forest.
Use more water.**
Thank you <3
The answers include the following:
The Earth only has climate change because of human activity - false.The Earth is currently experiencing an Ice age and is denoted as option A.Number of Living trees is one thing that scientists do not use to study climate change and is denoted as option A.The ice from the previous ice age melted and the climate was warmer is why humans were able to develop agriculture at the beginning of the Holocene Period and is denoted as option B.Using more water is what should not be done where you live to help protect coral reefs.What is Climate change?This is referred to as the long-term shifts in temperatures and weather patterns in an area at a given period of time.
Human activities are responsible as the major cause of climate change which is experienced in different parts of the world and such activities include carbon emission, deforestation etc.
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A body starts from rest and gains a velocity of 6 m/s in 2s of time. Find the acceleration of the body and its average velocity for the given time:
The acceleration of the body would be 3m/s^2 when a body starts from rest and gains a velocity of 6m/s in 2 second of time.
What is acceleration and average velocity and how it is calculated out to be so ?Acceleration is the quantity representing the change in velocity per unit time of the body in motion.Here in this question is given the velocity to be 6m/s and the time is 2 seconds, .To calculate the acceleration = velocity / time = 6/ 2 = 3 m /s^2 is the acceleration of the body.Average velocity is the quantity depicting the displacement per unit time of the body in motion.So the acceleration of the body when it starts from rest and gains a velocity of 6 m/s in 2 second of time is 3 m/s^2.To know more about acceleration visit:
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