A student is comparing three lenses of the same size and shape that are made of different materials. A small object, represented by the thick black arrow, is held on one side of each lens. The ray diagrams above show the formation of the image, represented by the gray arrow, for each lens. Which of the following correctly ranks the index of refraction n of the lenses?
n1 > n2 > n3
n2 > n1 > n3
n3 > n2 > n1
n3 > n1 > n2
Answers
Based on the ray diagrams provided, we can determine the correct ranking of the index of refraction (n) for the lenses. Therefore, the correct ranking of the index of refraction (n) for the lenses is: n3 > n2 > n1
The key observation to consider is the bending or refraction of light as it passes through the lenses.
Looking at the ray diagrams, we see that the light rays passing through lens 3 experience the most bending/refraction. This indicates that lens 3 has the highest refractive index (n3).
Comparing lens 1 and lens 2, we can see that lens 2 bends the light rays more than lens 1. This suggests that lens 2 has a higher refractive index (n2) than lens 1.
In other words, the refractive index of lens 3 is greater than the refractive index of lens 2, which is greater than the refractive index of lens 1.
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Related Questions
Drag and drop the terms to correctly complete the prompt.
Current is produced in a conductor when it is moved through a
applying a force on the
in the conductor and causing them to
of generating current in a conductor by placing the conductor in a changing magnetic field is called
is no
because the magnetic lines of force are
:: physical connection
between the conductor and the magnet. The current is said to be induced in the conductor by the
magnetic field. The conductor, which is often a piece of wire, must be
to the magnetic lines of force in
order to produce the maximum force on the free electrons. The direction that the induced current flows is determined by the direction
of the lines of force and by the direction the wire is moving in the field.
This process
:: free electrons :: induction :: perpendicular :: move
There
::magnetic field
Answers
We can see here that correctly completing this prompt, we have:
Current is produced in a conductor when it is moved through a magnetic field. This process of applying a force on the free electrons in the conductor and causing them to move.
This process of generating current in a conductor by placing the conductor in a changing magnetic field is called induction. There is no physical connection between the conductor and the magnet. The conductor, which is often a piece of wire, must be perpendicular to the magnetic lines of force in order to produce the maximum force on the free electrons.
What is current?In physics, current refers to the flow of electric charge in a circuit. It is measured in amperes (A) and is defined as the amount of charge that passes through a point in a circuit per unit time. In other words, current is the rate of flow of electric charge.
Current can flow through a variety of materials, such as wires or conductive solutions, and is driven by a potential difference, or voltage, between two points in a circuit.
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If a flare occurs on the sun 5 astronomical units away, how much time would pass before a robot at that distance sees the light flash?
Answers
A robot at that distance sees the light flash at time = 2500sec
Given,
A robot sees the flash light from distance = 5 astronomical unit (AU)
A robot at that distance sees the light flash at time = ?
Solution,
An Astronomical Unit can be defined as , the mean distance of the center of the Sun from the center of the Earth.
1 Astronomical Unit (AU) = 1.496 × 10¹¹m
Time for the light reach to the earth T = 8min 20 sec
speed of light c= 3 ×10¹¹m/s
T = distance/speed
Distance = 5AU
Speed = c
therefore ,
T time = 5 AU/C
AU/C= 5Time= 5 ( 8×60 + 20 )sec
Time = 2500 sec
A robot at that distance sees the light flash in 2500 seconds.
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Which of the following is an example of a mixture?
A. NaCl
B. C6H12O6
C. CO2 + H2 + O2
D. Ca
Answers
I know that the answer to your question is b because why not. just trust me
Answer:
hope it is helpful to you
do you think it is important to wear seat belts while traveling in a car?why?
Answers
Answer:
yes, because the seat belts lock in place when a car crashes, locking your body with it so you don't go out flying out of the car and injury your self.
1. A plane mirror has a
surface
Answers
Answer:
A plane mirror is a mirror with a flat (planar) reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence. The angle of the incidence is the angle between the incident ray and the surface normal (an imaginary line perpendicular to the surface).
Explanation
An adiabatic process is one in which i. no heat enters or leaves the system. ii. only mass is allowed crossing the boundary. iii. the temperature of the system changes. iv. the change in internal energy is equal to the mechanical workdone. O a. ii, iii and iv O b. i, ii, iii and iv O c. i, iii and iv O d. i, ii and iii
Answers
An adiabatic process is one in which no heat enters or leaves the system, and the change in internal energy is equal to the mechanical work done. Therefore, the correct answer is option c. I, iii, and iv.
An adiabatic process is characterized by the absence of heat transfer between the system and its surroundings. In other words, no heat enters or leaves the system during an adiabatic process
(i). However, this does not imply that only mass is allowed to cross the system boundary
(ii). Adiabatic processes can occur in both open and closed systems. Additionally, during an adiabatic process, the temperature of the system can change
(iii). This change in temperature is a result of the work done on or by the system. The change in internal energy is equal to the mechanical work done (iv) because there is no heat transfer to account for. Thus, the correct answer is option c. I, iii, and iv.
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A microwave has a frequency of 300,000 hz. calculate the wavelength
Answers
Answer:
\(\huge\boxed{\sf \lambda = 1,000 \ m}\)
Explanation:
Given Data:
Frequency = f = 300,000 Hz = 3 × 10⁵ Hz
Speed of light = c = 3 × 10⁸ ms⁻¹
Required:
Wavelength = λ = ?
Formula:
\(\displaystyle \lambda = \frac{c}{f}\)
Solution:
\(\displaystyle \lambda = \frac{3 \times 10^8}{3 \times 10^5} \\\\\lambda = \frac{10^8}{10^5} \\\\\lambda = 10^{8-5}\\\\\lambda = 10^3 \ m\\\\\lambda = 1,000 \ m\\\\\rule[225]{225}{2}\)
The police come to your house and demand to search it. You respond that they should leave and not come back without a warrant signed by a court that shows they have a good reason to search your home. You are exercising your rights as guaranteed under which Amendment?
Group of answer choices
The Second Amendment
The Fourth Amendment
The Eighth Amendment
The Fourteenth Amendment
Answers
The amount of voltage is directly proportional to the changing amount of ____ in the conductor and inversely proportional to the change in the time that occurs.
Answers
The amount of voltage is directly proportional to the changing amount of resistance in the conductor and inversely proportional to the change in the time that occurs.
Voltage is an important concept when it comes to electricity. It is a measure of the electrical potential energy between two points, usually expressed in volts. As such, voltage is directly proportional to the amount of electric charge present in a conductor, and inversely proportional to the time over which the change occurs.
For example, if the amount of charge is increased, the voltage will also increase, while if the time for this change is decreased, voltage will increase as well. This is because when more charge is present in the conductor, there is more potential for energy to be released, and a shorter amount of time means that there is less time for energy to be dissipated.
This is why voltage is inversely proportional to time. Voltage is one of the important factors in the functioning of any electrical circuit, and understanding its relationship to electric charge and time is essential to electricity’s uses and applications.
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A wire of resistance 27 ohm is folded 3 times find its new resistance
Answers
Answer:
New resistance = 243 ohm
Explanation:
Given:
Current resistance = 27 ohm
Computation:
The wire is extended to three times its initial size, and its cross-section is therefore shortened to one-third of how it used to be. We found the current resistance to be 3x3= 9 times
So,
New resistance = 27 x 9
New resistance = 243 ohm
Describe a scenario to show that waves carry energy, not matter.
Answers
Imagine standing at the edge of a calm ocean, holding a buoyant ball in your hand. You toss the ball into the water, and it begins to float away from you. As the ball moves away, you notice that it bobs up and down with the waves, but it does not move in the same direction as the waves.
This scenario demonstrates that waves carry energy, not matter. The ball is made up of matter, and it floats on the surface of the water. However, the waves that pass through the water are made up of energy, not matter. When the waves encounter the ball, they transfer some of their energy to the ball, causing it to bob up and down.
The ball itself is not being carried along by the waves, but is instead being influenced by the energy of the waves as they pass through the water. This is why waves are often described as a disturbance that travels through a medium, rather than as a physical object that moves through space.
In summary, the scenario of a buoyant force ball floating on the surface of the ocean and being influenced by passing waves is a clear example of how waves carry energy, not matter.
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An uncharged object becomes charged without direct contact.
What method of charging is occurring?
Answers
Answer:
chargeing by induction
Explanation:
this is the answer have a great day
What is the speed of a runner that runs 400m in 48.42 seconds?
Answers
Answer:
The speed is that it would take 121.05 seconds to run a kilometer.
Explanation:
Since there are 1000 meters in a kilometer, divide 400 meters by 4, and 48.42 by 4. Then you get 100 meters equals 12.105 seconds. Multiply that by ten, and you get 121.05 seconds
Water initially at 400 kPa and 300°C is contained in a piston-cylinder device fitted with stops. The water is allowed to cool at constant pressure until it exists as a saturated vapor and the piston rests on the stops. Then the water continues to cool until the pressure is 150 kPa. On the T-v diagrams sketch, with respect to the saturation lines, the process curves passing through both the initial, intermediate, and final states of the water. Label the T, P and v values for end states on the process curves. Find the overall change in internal energy between the initial and final states per unit mass of water.
Answers
The overall change in internal energy between the initial and final states per unit mass of water needs to be determined.
The initial state of the water is given as 400 kPa and 300°C. Since the pressure remains constant during the first step, the process on the T-v diagram would be a vertical line parallel to the constant pressure line. This line represents the cooling process at constant pressure until the water exists as a saturated vapor, and the piston rests on the stops.
In the second step, the water continues to cool until the pressure reaches 150 kPa. The process on the T-v diagram would be a horizontal line parallel to the constant temperature line. This line represents the cooling process at constant temperature until the desired final pressure is reached.
To find the overall change in internal energy per unit mass of water, we need to consider the difference in internal energy between the initial and final states. This can be calculated using the specific heat capacity of water at constant pressure, which is approximately constant over the given temperature range.
The change in internal energy can be obtained by multiplying the specific heat capacity at constant pressure by the change in temperature. In summary, the cooling process of water from 400 kPa and 300°C to 150 kPa involves two steps: cooling at constant pressure until saturation, followed by cooling at constant temperature. The process curves on the T-v diagram would be vertical and horizontal lines.
The overall change in internal energy per unit mass of water can be determined by multiplying the specific heat capacity at constant pressure by the temperature difference between the initial and final states.
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A or B??????????????
Answers
A storm is moving east towards your house at an average speed of 35 km / hr. If the storm is currently 80 km from your house, how much time do you expect it to arrive
Answers
Answer:
The expected time is 2.28 hours.
Explanation:
The speed of storm = 35 km/hr
The distance between the house and the storm = 80 km.
Now, we have to find the time taken by storm to arrive at the house. Here, we can determine the time by dividing the distance with speed.
The time, taken by storm = Distance/speed
The time, taken by storm = 80 / 35
The time, taken by storm = 2.28 hours.
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A water-skier is pulled behind a boat by a rope that is at an angle of 13° and has a tension of 490 N. The water-skier has a mass of 49 kg.
What are the magnitudes of the x- and y- components of the tension?
What is the normal force acting on the skier?
Answers
Answer:
normal force= 480.2 x component=477.4 y component= 110.4
Explanation:
I'm sorry I just did this today in class but i think normal force has to be equal to mg or the mass * gravity of the person and that would be 480.2 newtons. I multiplied 9.8 (gravity) by the mass of 49g
I think for the x and y components you can make a triangle with the angled string and then use sohcahtoa to solve for the tension. I used cos(13) = x/490 to solve for x component and then I used the pythagoran theroem to get the remaining side which would be : a^2 + 477.4^2 = 490^2
hope this can help and that it is correct. good luck
The magnitudes of the x- and y- components of the tension is 477.44N and 110.23N
The normal force acting on the skier is 480.2N
The magnitude of the x- and y- components of the tension is expressed as:
x = Tcos 13°y = T sin 13°Given the following
Tension T = 490N
x = 490 cos13° = 477.44N
y = 490sin13° = 110.23N
Hence the magnitudes of the x- and y- components of the tension is 477.44N and 110.23N
The normal force acting on the skier is equal to the weight.
N = W = mg
N = W = 49 * 9.8
N = W = 480.2N
Hence the normal force acting on the skier is 480.2N
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Which of these stars has the longest lifetime? a main-sequence A star a main-sequence G star a main-sequence M star
Answers
Main sequence M star has the longest lifetime. Because the main sequence is the stage of a star's life that lasts the longest, more than 90% of the stars in the cosmos are main sequence stars.
A star ten times as big as the sun will last on the main sequence for only 20 million years. The sun will last approximately 10 billion years. Red dwarfs can live 80 to 100 billion years, which is much longer than the universe's age of 13.8 billion years and half the mass of the sun. A star with only half the mass of the Sun can stay on the main sequence for 80 billion years. Our stellar companions range from nebula to protostar, through the main sequence to red giant, and finally finish as white dwarfs, neutron stars, or black holes.
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It takes more time to find a value in a hash table data structure than to find a value in a doubly linked list data structure. True or False
Answers
False.In a hash table data structure, the time complexity for finding a value (retrieving an element) is typically O(1) on average, assuming a good hash function and a well-distributed set of keys. This means that the time it takes to find a value is constant, regardless of the size of the data structure.
On the other hand, in a doubly linked list data structure, finding a value requires traversing the list from the beginning or end until the desired value is found. The time complexity for finding a value in a doubly linked list is O(n), where n is the number of elements in the list. This means that the time it takes to find a value in a doubly linked list increases linearly with the size of the list.Therefore, it takes more time to find a value in a doubly linked list data structure compared to a hash table data structure.
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The Intemational Space Station is orbiting at an altitude of about 231 miles ( 370 km) above the earth's surface. The mass of the earth is 5.976×10 24
kg and the radius of the earth is 6.378×10 6
m. a) Assuming a circular orbit, calculate the orbital speed (in m/s ) of the space station? (5pts) b) Calculate the orbital period (in minutes) of the space station. (5pts) c) Convert the orbital speed obtained in part (a) from m/s to miles/hour. You should get something close to 17000 mileshour. Hint: 1 mile =1.6 km.
Answers
a) The orbital speed of the International Space Station is approximately 7.66 km/s. b) The orbital period of the space station is approximately 92.68 minutes. c) Converting the orbital speed from m/s to miles/hour yields approximately 17144 miles/hour.
a) The orbital speed of an object in a circular orbit can be calculated using the formula v = √(G * M / r), where v is the orbital speed, G is the gravitational constant, M is the mass of the Earth, and r is the distance from the center of the Earth to the object. Plugging in the given values, we get v = √((6.67430 × 10^(-11) m³/(kg·s²)) * (5.976 × 10^(24) kg) / (6.378 × 10^(6) m + 370 × 10^(3) m)) ≈ 7.66 km/s.
b) The orbital period can be calculated using the formula T = (2πr) / v, where T is the orbital period, r is the distance from the center of the Earth to the object, and v is the orbital speed. Plugging in the values, we get T = (2π * (6.378 × 10^(6) m + 370 × 10^(3) m)) / (7.66 km/s * 1000 m/km) ≈ 92.68 minutes.
c) To convert the orbital speed from m/s to miles/hour, we use the conversion factor 1 mile = 1.6 km. Thus, the orbital speed in miles/hour is approximately 7.66 km/s * (3600 s/hour) * (1 mile / 1.6 km) ≈ 17144 miles/hour.
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If the altitude of the North Star is 30º above the horizon, then what is the highest altitude that the Sun will reach during the Autumnal Equinox:
__________degrees
Answers
If the altitude of the North Star is 30º above the horizon, then the highest altitude that the Sun will reach during the Autumnal Equinox: is 60 degrees
What is the Autumnal Equinox?The sun shines squarely on the equator at the autumnal equinox, giving both the northern and southern hemispheres an equal quantity of sunlight.
The start of the fall season is signaled by the autumnal equinox, a natural occurrence that takes place in late September every year. The celestial equator coincides with the equator of Earth, such that day and night are of equal length.
It would be 30 degrees north latitude if you could see Polaris at 30 degrees above the horizon. Now, if a star reaches its highest point at a place below the observer's zenith, its latitude is equal to 90 - star altitude.
90 - 30 = 60 degrees
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please help! you are awesome! also brainliest :)
The diagram below shows the two forces that keep Earth in orbit around the Sun.
What is responsible for Earth's movement toward the Sun?
A. Sun's forward motion
B. Earth's forward motion
C. Expansion of the universe.
D. force of gravity
Answers
Answer:
It's d
Explanation:
Answer: D
Explanation:
Force of gravity
I need help please!!
Answers
Answer:
A , C , E
they are all multiples of 3
Two packing crates of masses 10.0kg and 5.00kg are connected by a light string that passes over a frictionless pulley as shown in Figure. The 5.00kg crate lies on a smooth incline of angle 40.0 degree . Find the acceleration of the crates and the tension in the string.
Answers
The acceleration of the string is 4.3 m/s2.
What is Acceleration?We regard the positive direction for the vertical motion of mass m1 to be downward and the positive direction for the motion of mass m2 on the incline to be to the right and parallel to the incline.
There are only two ways to accelerate: changing your speed or changing your direction, or changing both. This is because velocity is both a speed and a direction.
Changing the speed at which an object is travelling is what acceleration is all about. A substance is not accelerating if its velocity is not changing. The information on the right depicts an object that is speeding as it moves northward.
Therefore, The acceleration of the string is 4.3 m/s2.
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.
Energy Representations 3: Power and Efficiency:Question 2
This Sankey diagram shows the energy transformations
in a mixer used to stir ingredients together. If the
percentage of non-useful energy produced by the mixer
is 30%, what is the energy efficiency of the mixer?
Select one:
10%.
70%.
100%.
30%.
Electric energy
Sound
Thermal energy
energy
Kinetic energ
Answers
The energy efficiency of the mixer is 70%.
The Sankey diagram shows the amount of energy absorbed, the amount of useful energy, and the amount of non-useful energy.
Input energy = output energyInput energy = useful energy + non-useful energyInput energy (I) = useful energy (U) + waste energy (W)I = U + W
The efficiency of a device
η = (U/I) × 100%
Input energy is always 100%I = 100%W = 30%
I = U + W
100% = U + 30%
U = 100% - 30%
U = 70%
The efficiency of the mixer
η = (U/I) × 100%
η = (70%/100%) × 100%
η = (7/10) × 100%
η = 70%
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a wave has a period of 2.0 s. what is its frequency?
Answers
Answer: Frequency of 1 ÷ 2 = 0.5 Hz.
Do children under the age of 13 that have social media accounts have more behavior problems in school? What is the independent variable?
A). The number of behavior problems in school
B). Children under 13 with social media accounts
C). Use of electronics after 9 PM
D). Students over the age of 13
Answers
Answer:
A
Explanation:
Can anyone help me with the two questions that is shown?
Answers
Answer:I can't see the question
Explanation:so i dont konw
what hold two or more atom together i a compound
Answers
Answer:
Chemical bonds are forces that hold atoms together to make compounds or molecules. Chemical bonds include covalent, polar covalent, and ionic bonds. Atoms with relatively similar electronegativities share electrons between them and are connected by covalent bonds.
Explanation:
The following are Aristotle’s beliefs about motion EXCEPT:
a. Objects move according to natural tendencies.
b. All motion on the Earth is linear.
c. Bodies dropped fall at the same time regardless of the mass.
d. To sustain motion of an object, a force needs to be applied continuously.
Answers
The statement which are Aristotle’s beliefs about motion EXCEPT option a.
What is Aristotle's theory of motion?Aristotle's theory of motion believed that all motion was centered upon the object trying to reach its natural resting position.
The theory states that it requires a force to make an object move in an unnatural" manner.
Until and unless a force is applied, the motion is continued or remains stopped.
Thus, all the statements are correct except Objects move according to natural tendencies.
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