People with low self- esteem are usually prone to loneliness and eating disorders.
Self-esteem, as a dimension sensitive to events -both internal and external- varies throughout your life.This happens because the perception of your personal worth is closely linked to the positive and negative milestones of your history.One of the main characteristics of people with low self-esteem is negative self-talk. In fact, they establish an internal dialogue in which their achievements, growth, or efforts – the elements that speak well of them – are omitted.People with low self-esteem tend to be insecure and indecisive.One trait of low self-esteem is often a lack of assertiveness. In other words, a reduced ability to clearly express their wants and needs.Emotional dependence and idealization of others are also characteristics of low self-esteem. In fact, these people might build ideally perfect versions of those close to them, especially those on whom they emotionally depend.To know more about human behaviour visit:
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Which process is required to allow a gravitationally-collapsing gas cloud to continue to collapse?.
Most of the cloud's thermal energy must be radiated away.
The cloud must constantly produce new dust particles. A collision with another cloud is required. Most of the cloud's thermal energy must be trapped there. Star formation depends significantly on angular momentum.
Low, dense clouds mainly serve to deflect solar energy and chill the Earth's surface. High, thin clouds mostly reflect incoming solar radiation; but, they also trap part of the infrared radiation that the Earth emits and reflect it back down, warming the Earth's surface.
The amount of emission from a cloud changes directly with its temperature in addition to being influenced by a number of other elements, including the thickness of the cloud and the composition of the cloud.
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6. suppose you apply a force of 1 n to block a and a force of 2 n to block b. does it follow that block b must have twice the acceleration of block a? justify your answer using newton's second law.
Yes, block b must have twice the acceleration of block a but Only if B has the same mass as A.
Acceleration is the rate of change of the velocity of an item with appreciation to time. Accelerations are vector portions. The orientation of an item's acceleration is given by the orientation of the net pressure appearing on that object.
Acceleration is the charge at which velocity modifications with time, in terms of each speed and route. A factor or an object moving in a straight line is accelerated if it quickens or slows down. movement on a circle is extended despite the fact that the rate is consistent because the course is continually changing.
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PLS HELP I ONLY HAVE 2 MINUTES PLEASE ONLY ANSWER IF YOU KNOW THE RIGHT ANSWER
_____ are the main form of fuel that is burned today in automobiles, industrial plants, and homes.
Carbon Monoxides
Nitrogen Oxides
Sulfur Oxides
Hydrocarbons
Answer:
Hydrocarbons
Explanation:
quizlet
Crane with 5 kW motor lifts the load evenly at a speed of 0.1 m/s. What is the weight of the cargo?
Answer: 0.5
Explanation:
wo pieces of clay are moving directly toward each other. one piece having mass 300~\text{g}300 g is moving to the right at a speed of 1~\text{m/s}1 m/s. the other piece has mass 600~\text{g}600 g and is moving to the left at a speed of 0.75~\text{m/s}0.75 m/s. when they collide, they stick together and move as one piece.
The percentage of the total initial kinetic energy that is lost during the impact is 11/17J. Because two bits of clay are travelling straight toward one another at a speed.
They stick together and move as a unit when they crash into each other. A moving object or particle's kinetic energy, which depends on both mass and speed, is one of its characteristics. The type of motion can be vibration, translation, rotation around an axis, or any combination of these. Kinetic energy is a type of energy that an item or particle possesses as a result of motion.
Piece weight is 300 g.
1 m/s for each piece's speed
The other portion weighs 600 g.
0.75 m/s is the speed of the other piece.
making use of the kinetic energy formula
K.E = 1/(m1+m2)v2 K.E = 1/(300*10-3+600*10-3)*(-0.5)2\s
K.E = 0.1125J
Energy wasted equals 11/17J - 0.1125/0.31875 energy lost
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The complete question is -
Two pieces of clay are moving directly toward each other. When they collide, they stick together and move as one piece. One piece having mass 300 g is moving to the right at a speed of 1 m/s. The other piece has mass 600 g and is moving to the left at a speed of 0.75 m/s. What fraction of the total initial kinetic energy is lost during the collision?
The compound dinitrogen oxide is a gas at room temperature. The two elements found in a sample of this gas
The two elements found in a sample of compound dinitrogen oxide, which is a gas at room temperature are nitrogen and oxygen.
What is dinitrogen oxide?Dinitrogen oxide or nitrous oxide is commonly known as laughing gas,
Dinitrogen oxide is a chemical compound, an oxide of nitrogen with the formula N₂O.
At room temperature, this gas is colorless, non-flammable gas, and has a slightly sweet scent.
Dinitrogen oxide or Nitrous Oxide is also called laughing gas or happy gas due to its intoxicating effects when inhaled.
From the chemical formula of Dinitrogen oxide which is written as;
N₂O = two nitrogen atoms and on1 oxygen atom
The compound of Dinitrogen oxide is made of;
2 atoms of nitrogen and 1 atom of oxygen
Thus, the compound of Dinitrogen oxide which is a gas at room temperature is made of two element. These two elements contained by the gas sample are known as nitrogen and oxygen.
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Answer:
nitrogen and oxygen.
Explanation:
the reason is cause i got it right
A truck loaded with sand is moving down the highway in a straight path.
a. What happens to the momentum of the truck if the truck’s velocity is increasing?
b. What happens to the momentum of the truck if sand leaks at a constant rate through a hole in the truck bed while the truck maintains a constant velocity?
Momentum, the product of a particle's mass and its velocity. Momentum is a vector quantity. It has both magnitude and direction. Isaac Newton's second law of motion states that the rate of change of momentum over time is equal to the force acting on a particle.
From Newton's second law, if a particle is subject to a constant force over a period of time, the product of that force and the time interval (momentum) equals the change in momentum. Conversely, the momentum of a particle is a measure of the time it takes for a constant force to come to rest.
We know, p = mv
Where, p = momentum
m = mass of object
v = velocity of the object
Since, momentum is directly proportional to the velocity of object:
p ∝ v
This means, that momentum increases with an increase in velocity.
If the velocity is constant, then:
p ∝ m
As the truck is losing some mass due the leakage of sand at a constant rate.
So, this decrease in mass leads in a decrease of momentum.
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now consider the gaussian surface s2. with the charge still inside the cavity, what is the electric flux, in newton squared meters per coulomb, through surface s2?
Gauss's law states that the total electric flux through any closed surface is proportional to total electric charge inside the surface.
The electric flux is the measure of the electric field through a given surface. The electric field is the gradient of the potential. The density of the lines corresponds to the electric field strength, which could also be called the electric flux density. Electric flux is proportional to the total number of electric field lines going through the surface.
Electric flux has SI units of volt meters or equivalently newton meters squared per coulomb. Thus, the SI base units of electric flux are kg m3s -3*A-1.
The quantity EA1 is the electric flux through S1. We represent the electric flux through an open surface like S1. Electric flux is a scalar quantity.
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a child jumps on a trampoline. draw energy bar diagrams to show the forms of energy present in the following situations.
a. the child is at the highest point.
b. the child is at the lowest point
Answer:
a
Explanation:
What is the magnitude b of the magnetic field at the location of the charge due to the current-carrying wire?.
The magnetic field direction at the position of the charge produced by the current-carrying wire can be determined using the right hand rule.
The magnetic field is the area surrounding a magnet where magnetism's effects are felt. We use the magnetic field as a tool to describe how the magnetic force is distributed in the vicinity and inside something magnetic in nature.
The magnetic influence on moving electric charges, electric currents, and magnetic materials is described by a magnetic field, which is a vector field. A force perpendicular to the charge's own velocity and the magnetic field acts on it when the charge is travelling through a magnetic field.
While opposed poles are drawn to one another, like poles repel one another. When you rub iron against a magnet, its atoms' north-seeking poles align in the same way.
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an ice hockey puck is tied by a string to a stake on rough ice and slides around in a circle until it comes to a stop. what is the sign of the work done by the tension in the rope as it slides to a stop?
The rope slides to a stop with no work being done by the tension in the rope.
Which of Newton's equations of motion best describes how a hockey puck would move if there was no external force acting on it as it slid around the ice?first rule of Newton If not affected by a net external force, an item at rest or in motion maintains its state of motion at a constant speed.
A hockey puck striking is governed by what rule of motion?The First Law of Motion by Newton Ice hockey is a sport that can help us understand Newton's laws of motion. Until pushed to change its condition by a net force, an object stays at rest or moves at a constant speed (speed in a constant direction).
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A long, horizontal wire Ab rests on the surface of a table and carries a current I. A horizontal wire CD is vertically above wire AB , and is free to slide up and down on the two vertical metal guides C and D ( as shown in Fig) .Wire CD is connected through the sliding contacts to another wire that also carries a current I , opposite in direction to the current in wire AB . The mass per unit length of the wire CD is λ. To what equilibrium height h will the wire CD rise. assuming that magnetic force on it is wholly due to current in wire AB ?
The equilibrium height to which the wire CD will rise is given by the expression h = μ₀I² / 2π λg
What is magnetic field ?A region in which the force of magnetism acts is known as the magnetic field, and it surrounds magnetic materials or a moving electric charge. Moving magnetic dipoles and electric charges produce a magnetic field, which acts as a force field on other nearby magnetic dipoles and moving charges.
Magnetic field at a distance h produced by a current carrying wire
B = μ₀I/ 2πh
Magnetic force due to the present current carrying wire can be calculated by the formula
F = B I L
And we also know that F = mg
On equating these mg = B I L
( μ₀I/ 2πh ) I = ( m/ I ) g = λg
thus we get the value of h as
h = μ₀I² / 2π λg
Thus, the equilibrium height to which the wire CD will rise is given by the expression h = μ₀I² / 2π λg .
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Based on observations, which of the following statements about stars in the Milky Way is generally true?
The older the star, the lower its abundance of heavy elements.
The less massive the star, the older it is.
The older the star, the bluer its color.
The older the star, the faster its orbital speed.
The younger the star, the higher its mass
Stars in the Milky Way, the older the star, the lower its abundance of heavy elements.
An element is a substance that can not be damaged down into a simpler layout. They may be distinguished by means of a completely unique atomic range. The elements are organized via their atomic variety in the periodic table, which highlights elements with similar residences.
Carbon is the most important detail of existence. Without this detail, existence, as we are aware of it, might not exist. As you will see, carbon is a vital element in compounds essential for lifestyles.
Kinds of elements :
1.) The elements are categorized as metallic, non-metal, and metalloid.
2.) The intense left aspect factors inside the periodic desk are metals, for example, sodium, calcium, cesium, and many others.
3) Elements such as non-metals, carbon, chlorine, oxygen, and many others.
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what is mesothermal climates
Answer:
Mesothermal regions have moderate climates. They are not cold enough to sustain a layer of winter snow but are also not remain warm enough to support flowering plants (and, thus, evapotranspiration) all year.
Explanation:
Please give the brainliest.
(figure 1) shows two blocks sliding on a frictionless surface. eventually the smaller block overtakes the larger one, collides with it, and sticks. suppose that m
The final speed after the collision of the blocks is 5u/4. The final speed is given in terms of initial velocity.
Given:
Mass of the first block, m
Mass of the second block, 3 m
The initial velocity of the first block, 2u
The initial velocity of the second block, u
The momentum can be determined from the product of mass and velocity.
From the conservation of momentum:
initial momentum = final momentum
2mu + 3mu = (3 m+m) v
The final speed is:
5mu = 4mv
v = 5u/4
Hence, the final speed after the collision of the blocks is 5u/4. The final speed is given in terms of the initial speed.
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#Complete question is:
shows two blocks sliding on a frictionless surface. eventually, the smaller block overtakes the larger one, collides with it, and sticks. suppose that m
What is the speed of the two blocks after the collision?
Lebron is comparing flights departing from minneapolis. Which 2 ways could lebron find the flight with the fastest average speed?.
The fastest average speed is distance divide by time.
The fastest average speed = distance / time
s = d /t
Average speed is calculated by dividing the total distance that something has traveled by the total amount of time it took it to travel that distance.
Average speed measures the average rate of speed over the extent of a trip.
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a stone is thrown horizontally from the top of a cliff 30m high with an itinal sped of 20, find the vertical speed of the stone as it hits the groudn
The molar mass of sulfur hexafluoride is 146 g/mol.
13. g of sulfur hexafluoride = 13 g / 146g/mol = 0.089 mol
The pressure of sulfur hexafluoride
P = nRT / V
P = 0.089 mol x 0.08206 Latm/mol/k x (10.0 + 273.15)K / 5.0 L
P = 0.41 atm.
The rate of change in position of an object in any course. Speed is measured because the ratio of distance to the time wherein the distance became included. Speed is a scalar amount because it has handiest route and no significance.
Velocity can be notion of as the rate at which an object covers distance. A quick-moving object has a high speed and covers a notably big distance in a given amount of time, whilst a sluggish-shifting item covers a relatively small amount of distance in the same amount of time.
The primary unit or the S.I. unit of velocity is m/s or ms¹.
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What can I do to make this less expensive, with less cargo damage, and with a sturdy shell condition? Anything less than the amount shown in the image.
The external part of the shell is made of fiberglass. This is probably very expensive. The production team of the above product should experiment with Graphene.
Why should Graphene be considered for the above project?It should be highlighted that graphene is already being utilized in transportation, medical, electronics, energy, defense, and desalination; graphene research is having a significant influence across a wide variety of sectors.
To put things in perspective, one square meter of normal paper is 1000 times heavier than graphene, while a single sheet of graphene large enough to cover a football field weighs less than a gram. Strongest. With a tensile strength of 150,000,000 psi, graphene outperforms steel and Kevlar.
Graphene, a single sheet of carbon atoms, has been hailed as the strongest substance known to man, 200 times stronger than steel, lighter than paper, and with amazing mechanical and electrical capabilities.
Given that graphene is formed of carbon, and carbon is in plentiful supply, it will very certainly be less expensive than fiberglass.
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Label the spinal cord meninges and spaces. 02:00:12 Skipped Reset Zoom Subarachnoid Arachnoid mater Dura mater Subdural Pia mater space space 7
The label from superficial to deep, of meninges and their related spaces in the correct order are:
1. Dura mater
2. Subdural space
3. Arachnoid mater
4. Subarachnoid space
5. Pia mater
What is the proper sequence of the meninges, from the superficial to the deep?The brain and spinal cord are shielded by three layers of membranes called meninges. Pia mater is the thin inner layer. The arachnoid, a structure resembling a web and filled with fluid, is the middle layer and protects the brain. The durable outer layer is known as the dura mater.
The subdural space is the area that could be found between the arachnoid mater and the meningeal layer of the dura. The subdural space typically only exists in pathological conditions, similar to the epidural space.
Therefore, Between the dura mater of your spinal cord, the bones of your vertebral column, and the dura mater of your skull is a space called the epidural space.
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Students are investigating charge separation in conductors. They have two initially neutral conducting spheres and two different kinds of cloths. The students want to determine if the cloths add the same kind of charge or opposite kinds of charge when rubbed on the spheres. Which of the following procedures will provide enough information to determine whether the cloths add the same or opposite charges?a. Rub one sphere with one cloth and the other sphere with the other cloth, and touch them together. Pull them slightly apart and see if they attract or repel.b. Rub one sphere with one cloth and the other sphere with the other cloth, and bring them close together without touching. See if they attract or repel.c. Rub each sphere once with one cloth then once with the other cloth, and touch them together. Pull them slightly apart and see if they attract or repel.d. Rub each sphere once with one cloth then once with the other cloth, and bring them close together without touching. See if they attract or repel.
Answer:
rgvy
Explanation:
urfgbv
Thermodynamics 2 QUESTION 3 A stationary gas-turbine power plant operates on a simple ideal Brayton cycle with air as the working fluid. The air enters the compressor at 95 kPa and 290 K and the turbine at 760 kPa and 1100 K. Heat is transferred to air at a rate of 35,000 kJ/s. Compare the power delivered by for the following assumptions: a. assuming constant specific heats at room temperature b. accounting for the variation of specific heats with temperature.
Assuming constant specific heats at room temperature, the power delivered by gas-turbine power plant that operates on a simple ideal Brayton cycle with air as the working fluid is 15678.25 KW
P1 = 95 KPa
T1 = 290 K
T3 = 1100 K
P2 = P3 = 760 KPa
Qin = 35000 KJ / s
At constant specific heats at room temperature,
R = 0.287 KJ / Kg K
cp = 1.005 KJ / Kg K
cv = 0.718 KJ / Kg K
K = 1.4
Pressure ratio, rp = P2 / P1
rp = 760 / 95
rp = 8
Efficiency, η = Wnet / Qin
1 - 1 / [ ( rp )^( ( k - 1 ) / k ) ] = Wnet / Qin
Wnet = 35000 * 1 - 1 / [ ( rp )^( ( 1.4 - 1 ) / 1.4 ) ]
Wnet = 35000 * 0.44795
Wnet = 15678.25 KW
Therefore, the power delivered is 15678.25 KW
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a truck moves with a speed of 90 km/h for 45 mins and 120 km/h for next 20 mins find average speed
Average speed a truck moves with a speed of 90 km/h for 45 mins and 120 km/h for next 20 mins is 40.72km/h.
Average speed = Total distance / Total time
S = 73.3/ 1.8
S = 40.72km/h
Given:
90 km/h is the speed.
Time = 0.75 hours * 45 minutes
To calculate the distance travelled, substitute the following values into the distance formula:
Distance (D) is equal to the product of speed and time, hence D = 90 * 0.75 = 33.75 km.
Given:
120 km/hr speed
Time = 20 minutes = 0.3333 hours
To calculate the distance travelled, substitute the following values into the distance formula:
Consequently, the distance travelled overall is:
Distance equals speed times time, so D = 120*0.33 D = 39.6 km.
Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in common usage.
Use the formula d = st, or distance equals speed times time, to find the distance.
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A bullet of mass 7.5 g that is moving at a speed of 483 m/s embeds itself into a tree, penetrating 19.4 cm into the wood.What is the magnitude of the average force, in N, exerted by the tree on the bullet? sig.gif?tid=4T78-AC-85-4A-844D-22357F =
The average force by which the bullet will hit the tree is F = 4.50945 × [tex]10^4[/tex] N .
Given : mass of the bullet = 7.5 gram
u or intial velocity = 483 m/s
v or final velocity = 0 m/s
h or height = 19.4 cm
v² = 2as + u²
0 = 38.8 a + 483 × 483
- 483 × 483/ 38.8 = a
thus acceleration = 6012.6 m/s²
F = ma
Thus on substituting the values we get
F = 7.5 × 6012.6
F = 45,094.5 N
or
F = 4.50945 × [tex]10^4[/tex] N
The magnitude of the average force is F = 4.50945 × [tex]10^4[/tex] N .
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FILL IN THE BLANK. power supplies all provide the same voltages to a system, such as 3.3v, 5v, and 12v. each of these can be referred to as a___, because each one comes from a specific tap within the power supply.
Linear regulated because each one comes from a specific tap within the power supply.
What are the four power supply stages?The four main processes shown in a block diagram of a regulated DC power supply are step down transformation, rectification, DC filtration, and regulation. Unregulated power supply and regulated power supply are the two categories that define DC power supply designs. The controlled power supply can be switched or linearly regulated.
What three types of power supplies are there?Battery-based, switched, or linear? Regulated power sources can be divided into three categories: battery-based, switching, and linear. Although switching and battery power have advantages, linear is the least complex of the three fundamental regulated power supply systems.
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The vapor pressure of methanol at is. Calculate the vapor pressure in and. Round each of your answers to significant digits.
Methanol has a vapor pressure of 126 at 25 °C.
What is the definition of vapor pressure?Vapor pressure features include: It is significant to remember that when a liquid boils, the pressure of its vapor equals the atmospheric pressure. For instance, the vapor pressure of water when it boils at sea level is 1 atmosphere because the surrounding pressure is also 1 atmosphere.
How is vapor pressure measured and what does it mean?It is the force applied to the unit area of the system's wall. The boiling point method and the transpiration method are the two main experimental techniques used to assess the vapor pressure at high temperatures.
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What is the magnitude b of the magnetic field at the location of the charge due to the current-carrying wire?.
Using the right hand rule, it is possible to calculate the magnetic field direction at the site of the charge caused by the current-carrying wire.
In the simplest terms possible, what is a magnetic field?The region surrounding a magnet where the effects of magnetism are perceived is known as the magnetic field. To explain how the magnetic force is dispersed in the area surrounding and inside something magnetic in nature, we utilize the magnetic field as a tool.
How does the magnetic field function?The same poles resist one another whereas opposite poles are attracted to one another. The north-seeking poles of the iron's atoms line up in the same way when you rub it against a magnet.
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a block is pulled along a surface of negligible friction by a spring scale that exerts a force f on the block. the mass of the block is 4kg, and the spring scale reads 10n. which of the following free-body diagrams can be used to show the magnitude and direction of all the forces exerted on the block as it is pulled along the surface?
The correct free-body diagram is the one shown in option C
What is the correct free-body diagram?We know that the free-body diagram could be used to identify the forces that are acting on an object. We know that the normal force that acts on an object must be equal to the weight of the object and this is represented as lines of equal length on the free-body diagram.
We can now see that the correct free-body diagram is one in which the magnitude of the force weight and the normal force is the same. Now the force on the spring would be shown as the forward force.
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if a galaxy is moving away its hydrogen lines will shift toward the end of the spectrum.
When a source of light waves is moving away from the observer, the light waves appear to be dispersed. If the galaxy weren't moving, the spectral lines observed in the galaxy would be at shorter wavelengths.
Because the relationship between wave frequency and wavelength is inverse, gamma rays have incredibly short wavelengths that are barely a fraction of the size of atoms, whereas other wavelengths can go as far as the universe. Regardless of the medium they travel through, electromagnetic radiation's wavelengths are commonly represented in terms of the vacuum wavelength, even though this isn't always mentioned explicitly.
The wavelength of electromagnetic radiation affects its behavior. The speed of light is equal to wavelength times frequency. Frequency multiplied by the Planck constant equals energy. 1/wavelength is the wave number in cm. Along with the wavelengths of different parts of the electromagnetic spectrum, a rough estimation of the wavelength size is displayed..
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Which of the following is NOT
an agent of mechanical
weathering?
a. ice
c. acid
b. wind
d. gravity
There has been a lot of attention given to Jupiter’s moon Europa as a possible site where life might be found. What do you think that life (if there indeed is any) might be like (be sure to consider the conditions we believe exist in the ocean under Europa’s ice crust)? What ideas might you have for how scientists could explore Europa’s ocean?
Scientists could explore Europa’s oceans by using potent technologically advanced telescopes capable of deciphering the content beneath the ice crust.
What are potent technologically advanced telescopes?The latest technologically advanced telescopes are potent optical devices that allow us to discover the presence of certain compounds not only in the atmosphere of other planets in the solar system but also the content on the surface (e.g, the water content).
These telescopes contain curved mirrors that gather and focus different spectra of light from the sky such as the Webb telescope which was launched by NASA in the final of 2021.
Therefore, with this data, we can see that technologically advanced telescopes are potent optical instruments that can be used to observe the presence of different compounds including water on the surface of a planet or its satellites such as in the case of Europe which is a satellite of Jupiter.
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