Please help, I'm really struggling here, I can't do science :(

The mass of Jupiter is about 320 times the mass of Earth. However, Jupiter’s gravity affects Earth very little because_____________. a Earth is so far from Jupiter. b Earth is so small. c Jupiter is made of gas. d Jupiter is nearer to the sun than Earth is.

For the following are four electrical components:

a. For components A and B, both of which obey Ohm's law, the current-voltage characteristics would be a straight line passing through the origin. The slope of the line for component B would be steeper than that of component A, indicating higher resistance.

b. The shape of the characteristic for component C, the filament lamp, can be explained by its construction. A filament lamp consists of a filament made of a resistive material, typically tungsten, which heats up and emits light when an electric current passes through it.

c. The component chosen for D, which does not obey Ohm's law, could be a diode. A diode is a two-terminal electronic component that allows the current to flow in only one direction.

For the following are four electrical components:

a. Sketches of current-voltage characteristics:

For components A and B, both of which obey Ohm's law, the current-voltage characteristics would be a straight line passing through the origin. The slope of the line for component B would be steeper than that of component A, indicating higher resistance.

  Current (I)

     ^

     |          B

     |         /

     |        /

     |       /

     |      /

     |     /

     |    /

     |   /

     |  /

     | /

     |/

     +------------------> Voltage (V)

     Current (I)

     ^

     |          A

     |         /

     |        /

     |       /

     |      /

     |     /

     |    /

     |   /

     |  /

     | /

     |/

     +------------------> Voltage (V)

For component C, a filament lamp, the current-voltage characteristic would be a curve that is not linear. It would exhibit a non-linear increase in current with increasing voltage. At lower voltages, the lamp would have low resistance, but as the voltage increases, the resistance of the filament also increases due to the phenomenon of thermal self-regulation. This leads to a slower increase in current at higher voltages.

For component D, a component that does not obey Ohm's law, the current-voltage characteristic could be any non-linear curve depending on the specific component chosen. Examples of components that do not obey Ohm's law include diodes and transistors.

b. The shape of the characteristic for component C, the filament lamp, can be explained by its construction. A filament lamp consists of a filament made of a resistive material, typically tungsten, which heats up and emits light when an electric current passes through it. As the voltage across the filament increases, the temperature of the filament increases as well, causing its resistance to increase. This increase in resistance results in a slower increase in current with increasing voltage, leading to the characteristic non-linear curve observed.

c. The component chosen for D, which does not obey Ohm's law, could be a diode. A diode is a two-terminal electronic component that allows the current to flow in only one direction. It exhibits a non-linear current-voltage characteristic where it conducts current only when the voltage is above a certain threshold, known as the forward voltage. Below this threshold, the diode has a high resistance and blocks current flow in the reverse direction. The characteristic curve of a diode would show negligible current flow until the forward voltage is reached, after which it exhibits a rapid increase in current with a relatively constant voltage.

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The x and y components of e are 7.73 units and 2.07 units respectively. The magnitude and direction of the vector f=d+e are 6.43 units and 2⁰ respectively.

The x and y components of vector e is calculated as follows;

X component of vector e;

ex = e cosθ

where;

ex = 8 cos(15)

ex = 7.73

Y component of vector e;

ey = 8 sin(15)

ey = 2.07

The sum of the x and y components of vector d and e

∑x = -1.3 + 7.73 = 6.43

∑y = -2.3 + 2.07 = -0.23

The magnitude of the resultant vector is calculated as follows;

V = √∑x² + ∑y²

V = √[6.43² + (-0.23)²]

V = 6.43 units

The direction of vector d and e;

θ = arc tan (Σy/Σx)

θ = arc tan (0.23/6.43)

θ =  2⁰

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The Planck model for the black body and the emission spectrum of the atoms allows to find the results for the peaks in the spectrum of stars is:

The stars are very hot celestial bodies by nuclear fusion processes, in a good approximation they approximate an ideal body that absorbs or emits all the radiation called black body.

A black body is a cavity in thermal equilibrium at a dated temperature with a small hole, this hole is the so-called black body and its emission spectrum was explained by Planck, with the assumption that the energy is

             E = h νν

Where h is Planck's constant and ν is the frequency of the radiation. In the attachment we see the emission spectrum of a black body for various temperatures.

If in the material under study we have in addition the emission characteristics of some elements, it is energy appears as peaks in the emission spectrum and as black bands o valley in an absorption spectrum, therefore the existence of the structure is in a test of the existence of chemical elements within the stars.

In the attachment we can see the spectrum of a dwarf star where we can appreciate the spectrum of the black body and the emission and absorption lines of the chemical elements inside the star.

In conclusion using the Planck model for the black body and the emission spectra of the atoms we can find the results for the peaks in the spectrum of stars is:

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Answer:

5

Explanation:

Answer:

The acceleration of the object occurred at 2.95 s

Explanation:

Given;

initial angular velocity of the object, ω = 0

angular acceleration, α = 2.3 rad/s²

angular displacement of the object, θ = 10 radians

The time of the motion is given by the following kinematic equation;

θ = ω + ¹/₂αt²

θ = 0 + ¹/₂αt²

θ = ¹/₂αt²

\(t^2 = \frac{2 \theta}{\alpha}\\\\t = \sqrt{\frac{2 \theta}{\alpha}}\\\\t = \sqrt{\frac{2 *10}{2.3}}\\\\t = 2.95 \ s\)

Therefore, the acceleration of the object occurred at 2.95 s

Answer:

the baseball is not movin

The statement that must be true is:  (Area of 1) + (Area of 2) = (Area of 3). This statement accurately reflects the relationship between the areas of the squares in the given diagram.

The correct answer is option B.

To determine which statement about the squares must be true, let's analyze the given diagram and the properties of squares.

In the diagram, square 1 is constructed on one side of the right triangle, square 2 is constructed on another side of the right triangle, and square 3 is constructed on the hypotenuse of the right triangle.

Statement A: (Perimeter of 1) + (Perimeter of 2) = (Area of 3)

This statement relates to the perimeters of squares 1 and 2 being equal to the area of square 3. However, this is not necessarily true. The perimeters of squares 1 and 2 are related to the lengths of their sides, while the area of square 3 is related to the length of its side. The perimeters and areas are different measures, so this statement is not necessarily true.

Statement B: (Area of 1) + (Area of 2) = (Area of 3)

This statement compares the areas of squares 1 and 2 to the area of square 3. Since squares have all sides equal in length, the areas of squares 1 and 2 are equal to the area of square 3. Therefore, this statement must be true

Statement C: (Perimeter of 1) + (Perimeter of 2) = (Perimeter of 3)

This statement relates to the perimeters of squares 1 and 2 being equal to the perimeter of square 3. However, since the squares have different side lengths, their perimeters are different. Therefore, this statement is not necessarily true.

Statement D: (Area of 1) + (Area of 2) = (Perimeter of 3)

This statement compares the areas of squares 1 and 2 to the perimeter of square 3. As mentioned earlier, the areas of squares 1 and 2 are equal to the area of square 3, which means they are not necessarily equal to the perimeter of square 3. Hence, this statement is not necessarily true.

Therefore, the correct statement is option B.

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The diameter of the smaller end of the pipe is approximately 0.78 meters.

To determine the diameter of the smaller end of the pipe, we can use the principle of conservation of mass. According to this principle, the mass flow rate of water should remain constant throughout the pipe.

The mass flow rate is given by the equation:
Mass flow rate = density of water * cross-sectional area * velocity

Since the density of the water remains constant, we can write:
Cross-sectional area1 * velocity1 = Cross-sectional area2 * velocity2

Given that the velocity1 is 13 m/s, the diameter1 is 1.2 m, and the velocity2 is 30 m/s, we can solve for the diameter2 using the equation:
(pi * (diameter1/2)^2) * velocity1 = (pi * (diameter2/2)^2) * velocity2

Simplifying the equation:
(1.2/2)^2 * 13 = (diameter2/2)^2 * 30

Calculating the equation:
(0.6)^2 * 13 = (diameter2/2)^2 * 30

0.36 * 13 = (diameter2/2)^2 * 30

4.68 = (diameter2/2)^2 * 30

Dividing both sides by 30:
0.156 = (diameter2/2)^2

Taking the square root of both sides:
0.39 = diameter2/2

Multiplying both sides by 2:
0.78 = diameter2

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Answer:

a) the distance that the solid steel sphere sliding down the ramp without friction is 1.55 m

b) the distance that a solid steel sphere rolling down the ramp without slipping is 1.31 m

c) the distance that a spherical steel shell with shell thickness 1.0 mm rolling down the ramp without slipping is 1.2 m

d) the distance that a solid aluminum sphere rolling down the ramp without slipping is 1.31 m

Explanation:

Given that;

height of the ramp h1 = 0.40 m

foot of the ramp above the floor h2 = 1.50 m

assuming R = 15 mm = 0.015 m

density of steel = 7.8 g/cm³

density of aluminum =  2.7 g/cm³

a) distance that the solid steel sphere sliding down the ramp without friction;

we know that

distance = speed × time

d = vt --------let this be equ 1

according to the law of conservation of energy

mgh₁ = \(\frac{1}{2}\) mv²

v² = 2gh₁  

v = √(2gh₁)

from the second equation; s = ut +  \(\frac{1}{2}\) at²

that is; t = √(2h₂/g)

so we substitute for equations into equation 1

d = √(2gh₁) × √(2h₂/g)

d = √(2gh₁) × √(2h₂/g)

d = 2√( h₁h₂ )    

we plug in our values

d = 2√( 0.40 × 1.5 )

d = 1.55 m

Therefore, the distance that the solid steel sphere sliding down the ramp without friction is 1.55 m

b)

distance that a solid steel sphere rolling down the ramp without slipping;

we know that;

mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) \(I_{}\)ω²

mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) (\(\frac{2}{5}\)mR²) ω²

v = √( \(\frac{10}{7}\)gh₁  )

so we substitute √( \(\frac{10}{7}\)gh₁  ) for v and  t = √(2h₂/g) in equation 1;

d = vt

d = √( \(\frac{10}{7}\)gh₁  ) × √(2h₂/g)  

d = 1.69√( h₁h₂ )

we substitute our values

d = 1.69√( 0.4 × 1.5 )  

d = 1.31 m

Therefore, the distance that a solid steel sphere rolling down the ramp without slipping is 1.31 m

c)

distance that a spherical steel shell with shell thickness 1.0 mm rolling down the ramp without slipping;

we know that;

mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) \(I_{}\)ω²

mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) (\(\frac{2}{3}\)mR²) ω²

v = √( \(\frac{6}{5}\)gh₁ )

so we substitute √( \(\frac{6}{5}\)gh₁ ) for v and t = √(2h₂/g) in equation 1 again

d = vt

d = √( \(\frac{6}{5}\)gh₁ ) × √(2h₂/g)

d = 1.549√( h₁h₂ )

d = 1.549√( 0.4 × 1.5 )

d = 1.2 m

Therefore, the distance that a spherical steel shell with shell thickness 1.0 mm rolling down the ramp without slipping is 1.2 m

d) distance that a solid aluminum sphere rolling down the ramp without slipping.

we know that;

mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) \(I_{}\)ω²

mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) (\(\frac{2}{5}\)mR²) ω²

v = √( \(\frac{10}{7}\)gh₁  )

so we substitute √( \(\frac{10}{7}\)gh₁  ) for v and  t = √(2h₂/g) in equation 1;

d = vt

d = √( \(\frac{10}{7}\)gh₁  ) × √(2h₂/g)  

d = 1.69√( h₁h₂ )

we substitute our values

d = 1.69√( 0.4 × 1.5 )  

d = 1.31 m

Therefore, the distance that a solid aluminum sphere rolling down the ramp without slipping is 1.31 m

We have that for the Question it can be said that

From the question we are told

Suppose the height of the ramp is h1= 0.40m, and the foot of the ramp is horizontal, and is h2= 1.5m above the floor. What will be the horizontal distance traveled by the following four objects before they hit the floor? Assume that R= 15mm in each case; assume that the density of steel is 7.8 g/cm3; and assume that the density of aluminum is 2.7 g/cm3.

Generally the equation for sliding without friction is mathematically given as

\(V = \sqrt{4Hh}\)

the equation for sliding without slipping is mathematically given as

\(X = \sqrt{\frac{4Hh}{1+I/mR^2}}\)

A) A solid steel sphere sliding down the ramp without friction.\(V = \sqrt{4*1.5*0.4}\\\\= 1.55m\)

B) .A solid steel sphere rollingdown the ramp without slipping.\(I = 2/5 mR^2\\\\X = \sqrt{\frac{4*1.5*0.4}{1+2/5}}\\\\= 1.309m\)

C) A spherical steel shell with shell thickness 1.0 mm rolling down the ramp without slipping.

\(I = 2/3 mR^2\\\\X = \sqrt{\frac{4*1.5*0.4}{1+2/3}}\\\\= 1.2m\)

D) A solid aluminum sphere rolling down the ramp without slipping.

\(X = \sqrt{\frac{4*1.5*0.4}{1+2/5}}\\\\= 1.309m\)

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Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{force}{mass} \\ \)

From the question

force = 97.7 N

mass = 34.2 kg

We have

\(a = \frac{97.7}{34.2} = 2.856725 \\ \)

We have the final answer as

Hope this helps you

Answer:a vertical expanse of water stretching between the surface and the floor of a body of water

Explanation:

It would require 28618.56 J of heat to raise the temperature of 90 g of water from 12°C to 88°C.

Given that:

Mass of water m = 90g

Initial temperature = 12°C

Final temperature = 88°C,

The amount of heat required to raise the temperature of a substance is given by:

Q = mCΔT

Where Q is the amount of heat, m is the mass of the substance, C is the specific heat capacity of the substance, and ΔT is the change in temperature.

Note that: the specific heat capacity of water is 4.184 J/g°C.

So, for raising the temperature of 90 g of water from 12°C to 88°C, we have:

Q = mCΔT

Q = (90 g) × (4.184 J/g°C) × (88°C - 12°C)

Q = (90 g) × (4.184 J/g°C) × (76°C)

Q = 28618.56 J

Therefore, the required heat is 28618.56 Joules.

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Answer:

D the distance vector between the starting point and the ending point of a motion.

Explanation:

The word displacement implies that an object has moved, or has been displaced. Displacement is defined to be the change in position of an object.

The formula to calculate the distance (d) is equal to Speed × time. The formula to calculate the Displacement (s) is equal toVelocity × time.

The answer for the experiment is obtained by the principle of Newton's law of cooling. The initial temperature of the Room is taken as 32°C.

The ice cubes are mixed with room-temperature water, the ice starts to melt and the water becomes cold. This is because the ice and water have two different temperatures and when they are mixed there is an exchange of heat is taken place. When the ice cubes mixed with water the room temperature is decreases from 32°C. After stirring the mixture because of the heat released, the temperature increases.

When the ice-water mixture is stirred, the heat energy is evolved which melts the ice in the mixture, and therefore the temperature increases gradually. And stirring of water for every 5 minutes leads ice cubes to melt completely to form water and the level of water increases in the final stage. This was given by Newton's law of cooling.

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It is not recommended to fire a gun straight up into the air.

When a bullet is fired into the air, it will eventually come down and can pose a danger to people and property below. The bullet can still be lethal when it reaches the ground, especially if it lands on a hard surface or hits someone directly.

Additionally, firing a gun in a residential area can be illegal and can result in legal consequences. In general, guns should only be fired in designated shooting ranges or in self-defense situations where there is an immediate threat to life. It is important to handle firearms responsibly and follow all safety guidelines to prevent accidents and injuries.

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1.5 grams  of Iodine-131 is left after 32 days

The half life of a substance is given by:

No (1/2 ) ^ t / (t*1/2)

Where No is the substance remaining after the period

t(1/2) is the half life

t(1/2) = 8 days

t = 32 days

No =  24 grams

N = 24 x (1/2)^ 32/ 8

N = 1.5 grams

Half-life is  described as the length of time it takes for half of the radioactive atoms of a specific radionuclide to decay.

A good rule of thumb is that, after seven half-lives, you will have less than one percent of the original amount of radiation.

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Answer:

The focal length of the mirror is 10.4 cm.

Explanation:

So substitute the values of object distance and image distance in the mirror equation,

1/f = 1/(-18cm) + 1/(-25.0cm)

1/f = -25cm/(-18cm x -25cm) - 18cm/(-18cm x 25cm)

1/f = ( -25cm - 18cm)/(18cm x 25cm)

1/f = -43.0/450.0

f = -10.4651 cm.

The focal length of the mirror is approximately -10.4 cm.

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You are most likely going through depression. I think you should talk to someone, it could help or try talking to one of us on brainly. I hope you feel better eventually. Your life is valuable try and realize that.

Answer:

You don't need a reason to be sad. It sound as though you are suffering from depression. I understand that. Last year I thought about taking my life, but my parents found out how I was feeling and have been so supportive. Something My mom said that really got to me was, if you killed yourself, who would find you. For me it would have been my little sister. I would have scared her for life. I have come a long way since then, I am doing family therapy, as well as persona, therapy. If you are feeling sad, there is a hotline you can text rather than call. Let them talk you out of it. They won't call anyone if you don't ask them to. Talking to a complete stranger helps, they don't know anything about you so they can't judge you. Also try listening to music, find an artist that you can relate to. For me I like listening to NF when I am feeling down. It helps.

The electric heater draws a current of 4.5 amps.

Using Ohm's Law, we can calculate the current drawn by the electric heater. Ohm's Law states that the current (I) flowing through a conductor is equal to the voltage (V) applied to the conductor divided by its resistance (R):

In this case, the voltage (V) is 120 V and the power (P) of the electric heater is 540 W. We can use the formula P = VI, where P is the power in watts, V is the voltage in volts, and I is the current in amperes. Solving for I, we get:

Therefore, the electric heater draws a current of 4.5 amperes (A) when operated at 120 volts (V).

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Answer:

the answer to this question is Accelerated motion

Answer:

gravity

Explanation:

I don't know what the explanations would be

Answer:

Frequency and period are distinctly different, yet related, quantities. Frequency refers to how often something happens. Period refers to the time it takes something to happen. Frequency is a rate quantity.

Answer:

Frequency and period are distinctly different, yet related, quantities. Frequency refers to how often something happens. Period refers to the time it takes something to happen. Frequency is a rate quantity.

Explanation:

Answer:

K.E = 2450 Joules

Explanation:

Given the following data;

Mass = 0.01 kg

Velocity = 700 m/s

To find the kinetic energy;

La energía cinética (K.E) se puede definir como una energía que posee un objeto o cuerpo debido a su movimiento.

Matemáticamente, la energía cinética viene dada por la fórmula;

\( K.E = \frac{1}{2}mv^{2}\)

Sustituyendo en la fórmula, tenemos;

K.E = ½ * 0.01 * 700²

K.E = 0.005 * 490000

K.E = 2450 Joules

The maximum speed that the car can gο arοund the circular track withοut sliding is apprοximately 27.39 m/s.

Fοrce is a physical quantity that describes the interactiοn between twο οbjects οr between an οbject and its envirοnment. A fοrce can cause an οbject tο accelerate, change directiοn, οr defοrm. Fοrce is a vectοr quantity, meaning it has bοth magnitude and directiοn. It is measured in units οf Newtοns (N).

The fοrmula fοr fοrce is:

F = ma

where F is the fοrce, m is the mass οf the οbject, and a is the acceleratiοn οf the οbject. This fοrmula is knοwn as Newtοn's Secοnd Law οf Mοtiοn. It states that the fοrce acting οn an οbject is directly prοpοrtiοnal tο its mass and acceleratiοn.

The maximum speed that the car can gο arοund the circular track withοut sliding can be calculated using the centripetal fοrce equatiοn:

Fc = mv² / r

where Fc is the centripetal fοrce required tο keep the car mοving in a circle οf radius r, m is the mass οf the car, v is the velοcity οf the car, and r is the radius οf the circular track.

Tο prevent sliding, the fοrce οf static frictiοn between the tires and the rοad must be greater than οr equal tο the maximum fοrce that can be exerted by static frictiοn, which is equal tο µs times the nοrmal fοrce (N = mg), where µs is the cοefficient οf static frictiοn and g is the acceleratiοn due tο gravity.

In this case, the centripetal fοrce required tο keep the car mοving in a circle οf radius 25 m is:

Fc = mv² / r = (1500 kg) x (10 m/s)²  / (25 m) = 6000 N

The maximum fοrce οf static frictiοn that can be exerted between the tires and the rοad is:

Ff = µs x N = (1.0) x (1500 kg) x (10 m/s² ) = 15000 N

Tο find the maximum speed that the car can gο withοut sliding, we need tο find the velοcity that cοrrespοnds tο a centripetal fοrce οf 15000 N:

Fc = mv²  / r = (1500 kg) x (vmax)²  / (25 m) = 15000 N

Sοlving fοr vmax, we get:

vmax = sqrt(15000 N x 25 m / 1500 kg) = 27.39 m/s

Therefοre, the maximum speed that the car can gο arοund the circular track withοut sliding is apprοximately 27.39 m/s.

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Answer:

— https://byjus.com/questions/what-is-the-ability-to-do-work-called/#:~:text=The%20ability%20to%20do%20work%20is%20called%20energy.,is%20transferred%20to%20that%20object.&text=There%20are%202%20types%20of,is%20the%20energy%20of%20motion.

It is a fact that "Energy is the ability to do work."

Energy is defined as the ability to do work. the units of energy in CGS is erg and in SI is joule

Energy can be transferred in the form of force. Work or work done refers to the quantity of energy delivered by a force to move an item. As a result, Work and Energy have a direct relationship.

When we say work is done , we mean to say that energy is being transferred this is why work is done. Energy is what is required to do any type of work or activity. Without it no work can be done.

hence , it is a fact that "Energy is the ability to do work."

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Answer:

Explanation:

To find the speed of the tsunami:

Speed = Distance / Time

Converting the distance from miles to meters and the time from hours to seconds:

Distance = 6500 miles × 1609.34 m/mile = 10,460,210 m

Time = 17 hours × 3600 s/hour = 61,200 s

Speed = 10,460,210 m / 61,200 s ≈ 171 m/s

To convert the speed to miles per hour:

Speed = 171 m/s × 2.24 mi/hr / 1 m/s ≈ 383 mi/hr

So the speed of the tsunami is approximately 171 m/s or 383 mi/hr.

To find the average frequency:

Wave speed = frequency × wavelength

The wavelength is twice the width of the wave:

Wavelength = 2 × 22 m = 44 m

Frequency = wave speed / wavelength

Frequency = 171 m/s / 44 m ≈ 3.9 Hz

So the average frequency of the tsunami is approximately 3.9 Hz.

The length of the pendulum is measured from the lower part of the wooden clamp, because the center of gravity is at the center of the bob.

The simple pendulum's length, l is determined by measuring it from the point of suspension to the center of gravity (center of the bob), which is the place where all of this sphere's mass is concentrated.

The center of the mass will exactly reside in the center of the bob when we take the bob's dimensions into account.

As a result, the total length is now equal to the length of the string plus the bob's radius. The length is thus measured from the lower part of the wooden clamp.

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Based on the diagram, the correct statement is: Government and consumers make economic decisions in a mixed economy, while consumers make economic decisions in a market economy.

In a mixed economy, economic decisions are made by both the government and consumers.

The government plays a significant role in regulating and influencing economic activities through policies, regulations, and interventions.

In market economy, economic decisions are primarily made by consumers. The market forces of supply and demand dictate the allocation of resources, production levels, and pricing.

The freedom to buy and sell whatever they choose is what ultimately determines how commodities and services are produced and distributed.

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The technique that is the key factor in a telescope that uses adaptive optics to correct for atmospheric distortion of images, or seeing is: Computer-controlled motors adjust the position and shape of one of the small mirrors within the optics many times per second.

Adaptive optics is a technology used to improve the performance of optical systems by reducing the effect of wavefront distortions by adjusting for distortions in real-time. Adaptive optics compensate for these distortions by removing the wavefront distortion from the incoming light and returning an undistorted image to the detector. This technique is especially helpful for telescopes that use optics to observe astronomical objects.

In a telescope, Adaptive optics involves two main components:

a wavefront sensor and a wavefront corrector. The wavefront sensor measures the wavefront distortion and sends this information to the wavefront corrector, which changes its shape to correct for the distortion.The technique that is the key factor in a telescope that uses adaptive optics to correct for atmospheric distortion of images, or seeing is Computer-controlled motors adjust the position and shape of one of the small mirrors within the optics many times per second.

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