A concave lens is used to form an image. The diagram shows three incident rays that pass the object and then reach the lens. How does the lens affect the green ray, which is incident at the center of the lens where it meets the axis?
• A. The ray bends inward and travels through the focal point on the right side of the lens.
• B. The ray bends and travels outward on a path that is parallel to the axis.
• C. The ray bends outward on a path that can be traced Back to the
focal point on the left
D.The rat passed through the lens and continues traveling on the same path in a straight line.
Answers
The ray bends and travels outward on a path that is parallel to the axis. The correct option is B.
In the case of a concave lens, which is thinner at the center and thicker at the edges, incident rays that are parallel to the axis will diverge after passing through the lens. This phenomenon is known as divergence or spreading out of the light rays.
Let's examine why the other options are not true:
A. The ray bends inward and travels through the focal point on the right side of the lens: This is not true because the green ray is incident at the center of the lens where it meets the axis. Rays incident at the center of the lens are not deviated and continue to travel in a straight line without bending.
C. The ray bends outward on a path that can be traced back to the focal point on the left: This is also not true for the same reason as option A. Rays incident at the center of the lens do not bend, so they cannot be traced back to any focal point.
D. The ray passes through the lens and continues traveling on the same path in a straight line: This is not true because, as mentioned earlier, the green ray will be deviated by the concave lens. Rays incident at the center of the lens will diverge and travel outward, not in a straight line.
Therefore, option B is the correct choice, as the green ray will bend and travel outward on a path that is parallel to the axis after passing through the concave lens.
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Related Questions
The population of the United States releases approximately 17 x 10¹⁸ J of energy every year by burning gasoline for trucks and automobiles. Approximately how much mass in this equal to?
Answers
The equivalent amount of gas released by the population of the united states is : 1.89 * 10⁻¹⁶ kg
To determine the equivalent mass released by the populationWe will Convert the energy released in Joules ( 17 * 10¹⁸ J ) to mass using the conversion calculator. therefore aproximately the mass of energy released by the population is 1.89 * 10⁻¹⁶ kg.
Hence we can conclude that The equivalent amount of gas released by the population of the united states is : 1.89 * 10⁻¹⁶ kg.
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1. A car starts from the rest on a circular track with a radius of 300 m. It accelerates with a constant tangential acceleration of a = 0.75 m/s?. Determine the distance traveled and the time elapsed"
Answers
Starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², the car will travel a distance of approximately 0.2119 meters or 21.19 centimeters in 0.75 seconds.
To determine the distance traveled and the time elapsed by the car starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², we can use the equations of circular motion.
The tangential acceleration is the rate of change of tangential velocity. Since the car starts from rest, its initial tangential velocity is zero (v₀ = 0).
Using the equation:
v = v₀ + at
where v is the final tangential velocity, v₀ is the initial tangential velocity, a is the tangential acceleration, and t is the time, we can solve for v:
v = 0 + (0.75 m/s²) * t
v = 0.75t m/s
The tangential velocity is related to the angular velocity (ω) and the radius (r) of the circular track:
v = ωr
Substituting the values:
0.75t = ω * 300
Since the car starts from rest, the initial angular velocity (ω₀) is zero. So, we have:
ω = ω₀ + αt
ω = 0 + (0.75 m/s²) * t
ω = 0.75t rad/s
We can now substitute the value of ω into the equation:
0.75t = (0.75t) * 300
Simplifying the equation gives:
0.75t = 225t
t = 0.75 seconds
The time elapsed is 0.75 seconds.
To calculate the distance traveled (s), we can use the equation:
s = v₀t + (1/2)at²
Since the initial velocity (v₀) is zero, the equation becomes:
s = (1/2)at²
s = (1/2)(0.75 m/s²)(0.75 s)²
s = (1/2)(0.75 m/s²)(0.5625 s²)
s = 0.2119 meters or approximately 21.19 centimeters
Therefore, the car travels a distance of approximately 0.2119 meters or 21.19 centimeters.
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The hanging mass is referred to as M and it sets the centripetal force.
True
False
Answers
Answer:
False
Explanation:
The centripetal force is the force that points towards the center and is responsible for keeping an object in a curved path. This force is provided by the tension in the string, not the mass of the object.
Which experiment proved light was a wave?
A) Photoelectric effect
B) Double Slit
C) Compton Scattering
D Light was never proved to be a wave
Answers
Answer:
The answer is B) Double slit
Trying to help my brother but i dont remember question 8. Pls help, thank you
Answers
Answer:
I can't read it if you zoom in its still blurry
Explanation:
read the question to me and I'll try to answer it thx
At a construction site a wrench strikes the ground with a speed of 24.0 m/s. a) from what height was it dropped? b) for how long was it falling?
Answers
Explanation:
vf = vo + at
24 = 0 + 9.81 t
t = 2. 45 s
d = do + vo t + 1/2 a t^2
0 = do + 0 *t + 1/2 (-9.81 )(2.45)^2
do = 29.4 m
A ________ is a system of government in which member states retain almost all of their sovereign authority and delegate limited powers to a weak central body. Group of answer choices confederation bicameral state republic unitary state
Answers
A "confederation" is a system of government in which member states retain almost all of their sovereign authority and delegate limited powers to a weak central body.
In a confederation, the central government has limited authority and primarily serves as a coordinating body for the member states. The member states maintain a significant degree of independence and have the power to make decisions on matters that directly affect them.
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A 12,000 kg spy satellite peers down upon the earth from a height of 2400 km above the surface. What speed must the satellite have in order to maintain this orbit
Answers
The speed the spy satellite must have to maintain this orbit is approximately 3077 m/s.
What is Speed?
Speed is a measure of how fast an object is moving, defined as the distance traveled per unit of time. It is a scalar quantity, meaning it only has a magnitude (i.e., a numerical value) and no direction.
The speed required for an object to maintain a circular orbit around the Earth can be calculated using the formula v = √(GM/r), where G is the gravitational constant, M is the mass of the Earth, and r is the distance between the center of the Earth and the object. Plugging in the given values, we get v = √((6.67×\(10^{-11}\) \(Nm^{2}\)/\(kg^{2}\)) × (5.97×\(10^{24\) kg) / (2400 km + 6371 km)) = 3077 m/s.
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Start a ball rolling down a bowling alley and you'll find that it moves slightly slower with time. Does this violate Newton's first law? Defend your answer.
Answers
As it is a result of external forces acting upon it rather than a failure to maintain its state of motion.
The observation that a ball rolling down a bowling alley moves slightly slower with time does not violate Newton's first law of motion, also known as the law of inertia.
Newton's first law states that an object at rest will remain at rest, and an object in motion will remain in motion with a constant velocity (which includes moving at a constant speed in a straight line or moving with a constant speed in a curved path) unless acted upon by an external force. In other words, an object will maintain its state of motion (or lack thereof) unless an external force is applied to it.
In the case of a ball rolling down a bowling alley, the ball is subject to various external forces that act upon it and cause it to slow down. These forces include friction between the ball and the lane, air resistance, and deformation of the ball itself. These forces act in the opposite direction of the ball's motion and cause it to lose speed over time, as the ball's kinetic energy is dissipated into other forms of energy.
Therefore, the ball's decrease in speed over time is not a violation of Newton's first law, as it is a result of external forces acting upon it rather than a failure to maintain its state of motion.
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which is denser: an object that has a density of 1000 kg/m3 or one that has a density of 1 g/cm3?
Answers
Density is a measure of how much mass is contained within a given volume. An object with a density of 1000 kg/m³ is denser than an object with a density of 1 g/cm³.
Density is a measure of how much mass is contained within a given volume. The formula for density is mass divided by volume (ρ = m/V). In the metric system, density is commonly expressed in kilograms per cubic meter (kg/m³) or grams per cubic centimeter (g/cm³).
Comparing the given densities, we can see that 1 g/cm³ is equivalent to 1000 kg/m³ since there are 1000 grams in a kilogram and 1 cubic meter is equal to 1,000,000 cubic centimeters. Therefore, the object with a density of 1000 kg/m³ has a higher mass per unit volume compared to the object with a density of 1 g/cm³.
This means that for the same volume, the object with a density of 1000 kg/m³ contains more mass, making it denser than the object with a density of 1 g/cm³. In simpler terms, if you were to compare objects of the same size, the object with the higher density would feel heavier because it has more mass packed into the same amount of space.
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How do you think an object's mass relates to its weight?
Answers
Explanation:
w = m.g
g is Gravity acceleration . on surface of Earth it's
9.8 m/s² ≈ 10 m/s²
A soccer ball is kicked and leaved the ground at an angle 38 degrees above the horizontal, moving at 15m/s.Hang time of the ball. Initial horizontal velocity. Initial vertical velocity
Answers
the common 9 volt battery imparts how much energy to one coulomb of charge?
Answers
9 joules of energy in one coulomb of charge.
The energy of the battery means the amount of energy given by the battery.
The energy that a battery imparts to a charge can be calculated using the formula:
E = V * Q
where,
E is the energy in joules, '
V is the voltage in volts, and
Q is the charge in coulombs.
For a 9 volt battery, the energy imparted to one coulomb of charge can be calculated as:
E = 9 V * 1 C
E = 9 J/C
One joule per coulomb is equal to one volt.
Hence,
9 J/C = 9 V
9 volt battery, the energy imparted to one coulomb of charge is 9 V.
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What would you have loved to press the pause button on so you could go deeper
Answers
Answer:
~Banana Fish~
in a region where there is an electric field, the electric forces do 8x10^-19 j of work on an electron as it moves from point a to point b. which point has the higher potential? what is the potential difference vb – va?
Answers
The potential difference (Vb - Va) is equal to -5 volts. Since point b has a higher potential than point a, we can say that point b has a potential of -5 volts with respect to point a.
In a region with an electric field, the work done by electric forces on a charged particle is equal to the change in its electric potential energy. The potential difference between two points, point a (Va) and point b (Vb), can be determined using the work done.
If the electric forces do positive work on an electron as it moves from point a to point b, it means that the electron is moving in the direction of the electric field. In this case, point b will have a higher potential than point a.
Work = Change in Potential Energy = q * (Vb - Va)
Where q is the charge of the particle (in this case, the charge of an electron, -e) and (Vb - Va) is the potential difference.
Given that the work done on the electron is 8x10^-19 J, and the charge of an electron is approximately -1.6x10^-19 C, we can substitute these values into the equation:
8x10^-19 J = (-1.6x10^-19 C) * (Vb - Va)
Now, we can solve for (Vb - Va):
Vb - Va = (8x10^-19 J) / (-1.6x10^-19 C)
= -5
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Which force does not operate at a distance of 1 m?
A. Weak nuclear
O B. Electric
C. Gravitational
D. Magnetic
Answers
Answer:
A
Explanation:
A block of mass 0.5kg is pulled to the right with an applied force 3N at an angle 30 degrees above horizontal as shown. Ignoring friction, the acceleration of the block is...
A. 1.8
B. 3
C. 5.2
D. 6
Answers
The answer is C, 5.2
Rock composed of many thin layers. This image appears in an Earth science magazine with this caption: "A non-foliated rock found in the Himalayan Mountains.” Is the caption for this image correct? Why or why not? Yes, because the grains are arranged in thin, parallel layers. No, because the grains are arranged in thin, parallel layers. Yes, because the grains are arranged randomly. No, because the grains are arranged randomly.
Answers
Answer:
its B
Explanation:
Answer:
It's B, No, because the grains are arranged in thin, parallel layers.
Explanation:
I literally took the test 5 seconds ago and it was right.
Cities can reduce earthquake damage by
Answers
Answer:
Adaptation – Develop post disaster response plans and operational redundancy to speed recovery time
Avoidance – Reduce risk by structural/nonstructural retrofitting, or lease/buy more resilient properties
Assignment – Transferring the risk to others through insurance
Convert the following from scientific notation to standard notation.
1. 3.47 x 108
2. 7.94 x 103
3. 1.96 x 10-3
4. 4.50 x 109
5. 9.61 x 10-6
6. 2.02 x 105
7. 7.01 x 10-10
8. 4.44 x 101
Answers
Answer:
1.) 347,000,000
2.)7,940
3.)0.00196
4.)4,500,000,000
5.)0.00000961
6.)102,000
7.).000000000701
8.)44.4
Explanation:
when the power is positive, you just need to move decimal point to your right , for a number of times which is similar to the value of the power.
Eg. 3.47×10 raised to the power 8.
with this, move the decimal point to the right eight times which will be 347,000,000.
But when the power is negative, move the decimal point to the left for a number times which will be similar to the value of the power.
Eg. 1.96×10 raised to the power negative 3.
move the decimal point leftwards three times which will be 0.00196
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Find the center of mass of the following particles (drawn large so they can be seen)
Answers
It is possible to suspend an object at rest from its center of gravity, and gravity won't induce it to begin rotating no matter how it is positioned.
Thus, The center of gravity of an object will be located somewhere along a vertical line that passes through the point of suspension if you suspend it from any point and allow it to come to rest.
The gravitational acceleration is (almost) constant near the surface of the earth, where the center of mass also lies.
A place that represents the average or typical location of an object's mass, as if all of the mass were contained there, is known as the center of mass (CM). The geometric center of a uniform sphere serves as its center of mass. The barycenter is another name for the CM.
Thus, It is possible to suspend an object at rest from its center of gravity, and gravity won't induce it to begin rotating no matter how it is positioned.
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How does a sound wave transfer energy to your ears ?
Answers
Answer:
A. Particles in air move in circles as the wave moves forward.
B. Particles in air move forward but not backward as the wave moves
forward.
C. Particles in air move up and down as the wave moves forward.
✔ D. Particles in air move forward and backward as the wave moves
forward.
Explanation:
The waves transfer energy from the source of the sound, e.g. a drum, to its surroundings. Your ear detects sound waves when vibrating air particles cause your ear drum to vibrate. The bigger the vibrations the louder the sound.
Answer:
Sound waves travel at 342 m/s through the air and faster through liquids and solids. The waves transfer energy from the source of the sound, e.g. a drum, to its surroundings. your ear detects sound waves when vibrating air particles cause your eardrum to vibrate. The bigger vibrations the louder the sound.
Explanation:
Normally, whem I shut my door, it takes quite a bit of effort to shut it, but when my window is open, even if I just pull it slightly then let go, it slams automatically. It isn't an issue, I just want to know the physics behind it. Is it something to do with difference in pressure?
Answers
Answer:
gravity
Explanation:
gravity pulls anything with with weight towards the earth.
Answer
The reason why this occurs is because if there is any apparent wind being pushed towards the direction of the door, there will be an attempt of equalizing pressure and thus it will slam, or close very loudly when you even just push it shut with some effort.
Explanation
This has happened to me a variety of times, I would have the garage open, and it would be a little bit windy, and when I tried to close it, it would slam shut.
Airflow is a significant factor in the pressure appliance.
Your question at the end is correct (Differences in air pressure.)
Apologies for the late response, but I was interested in this as well.
PSYCHOLOGY propelling neural signals is a function of ______ neurotransmitters.
a. neutral b. excitatory c. inhibitory d. impulsory
Answers
which of the following statements is true? a. photons have energy, but no momentum. b. photons have momentum and energy, but no mass. c. photons have velocity and momentum, but no energy. d. photons have mass and velocity, but no momentum
Answers
The photon has momentum and energy but no mass is the correct statement.
Photons, also called light quanta, are small energy packages of electromagnetic radiation. The photon idea arose from Albert Einstein's description of the photoelectric effect published in 1905. So he proposed the existence of discrete packets of energy during the transmission of light. Einstein concluded that a quantum of light can also be assigned an impulse (hν/c). Significant energy values and momentum strongly suggested that light quanta could be assigned to particles. This was later called a photon. A photon is thus defined as a discrete flux (or quantum) of electromagnetic (or light) energy. Photons have no mass, so they travel at the speed of light (3 × 10⁸ m/s).
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Look at the diagram below. What is the total resistance of the resistors in this circuit?
Answers
The total resistance of the resistors in the circuit from the diagram is 20 Ω.
What is resistance?Resistance is a measure of the opposition to current flow in an electrical circuit.
To calculate the total resistance of the resistors in parallel, we use the formula below.
Note: Both resistors are connected in series.
Formula:
For series connection
R = R₁+R₂................ Equation 1Where:
R = Total resistance of the resistor in the circuit.From the diagram,
Given:
R₁ = 10 ΩR₂ = 10 ΩSubstitute these values into equation 1
R = 10+10R = 20 ΩHence, the total resistance is 20 Ω.
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What would it take to get the stone slab to move? Propose an
idea and explain how it would work in the context of Newton's
laws.
Answers
In order to get a stone slab to move, one would have to apply force to it. This can be done in a number of ways, depending on the situation. Here are a few possible laws that could be proposed for moving a stone slab:1. Newton's first law of motion: This law states that an object at rest will stay at rest unless acted upon by an external force. Therefore, to move a stone slab, one would need to apply a force to it.
This could be done by pushing it, pulling it, or applying a force from a lever or other mechanical device. Newton's second law of motion: This law states that the force required to accelerate an object is directly proportional to its mass. Therefore, to move a stone slab, a greater force would be required if it is more massive. This could be accomplished by using more people to push or pull the slab, or by using a larger lever or other mechanical device.. Friction: Friction is the force that opposes motion between two surfaces that are in contact with each other. In order to move a stone slab, one would need to overcome the friction between it and the surface it is resting on. This could be accomplished by reducing the friction (for example, by using rollers or lubricant), or by applying a greater force to overcome the friction.Work: Work is defined as the product of force and distance. Therefore, in order to move a stone slab, one would need to apply a force over a certain distance.This could be accomplished by pushing or pulling the slab over a distance, or by using a lever or other mechanical device to apply force over a greater distance.These are just a few possible laws that could be proposed for moving a stone slab. Ultimately, the best approach will depend on the specific situation and the resources available.For such more question on Newton's second law
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How are energy, force, and the motion of objects related?
Answers
Answer:
When two objects interact, each one exerts a force on the other that can cause energy to be transferred to or from the object. For example, when energy is transferred to an Earth-object system as an object is raised, the gravitational field energy of the system increases. This energy is released as the object falls; the mechanism of this release is the gravitational force. Likewise, two magnetic and electrically charged objects interacting at a distance exert forces on each other that can transfer energy between the interacting objects.
Explanation:
Even when an object is sitting still, it has energy stored inside that can be turned into kinetic energy (motion). ... A force is a push or pull that causes an object to move, change direction, change speed, or stop. Without a force, an object that is moving will continue to move and an object at rest will remain at rest.
Energy can be transmitted to or from an object when two things interact because of the forces that each one of the items applies to the other.
What is Energy force?For instance, the gravitational field energy of a system including the Earth and an object grows as energy is transmitted to the system when the object is raised.
As the object falls, this energy is released, and the gravitational force provides the mechanism for this release. Similar to this, when two electrically and magnetically charged objects contact at a distance, they exert forces on one another that can transmit energy.
Even when an item is at rest, it still contains energy that can be converted to kinetic energy (motion). A push or pull that moves, changes direction, or otherwise affects an object is called a force.
Therefore, Energy can be transmitted to or from an object when two things interact because of the forces that each one of the items applies to the other.
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Halley’s comet orbits the Sun in an elliptical path as shown.During its orbit, it moves faster when it is closer to the Sun than when it is further away.What can you conclude about the comet’s potential energy as it approaches the Sun? Explain.
Answers
Given what we know, we can confirm that as Halley's comet moves closer to the sun, we can expect its potential energy to be near its maximum.
How do we know this?We can conclude that its potential energy will increase as it comes closer to the sun, and will reach its maximum at the closest point to the sun. This is because the potential energy of an object is directly proportional to the force of gravity acting on that object. As Halley's comet approaches the sun, the sun's gravitational pull on the comet is stronger, and thus, its potential energy increases.
Therefore, given the relationship between gravity and potential energy, we can confirm that s Halley's comet moves closer to the sun, we can expect its potential energy to increase and be near its maximum.
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Particles q1 = -66.3 UC, q2 = +108 uC, and
93 = -43.2 uC are in a line. Particles q1 and q2 are
separated by 0.550 m and particles q2 and q3 are
separated by 0.550 m. What is the net force on
particle q2?
Answers
The sum total of all forces which are acting on an object is known as the net force. A mass can accelerate due to the net force.
What is net force?The net force can be defined as the vector sum of all the forces which act upon an object. It is the sum of all the forces, taking into account the fact that a force is a vector and two forces of equal magnitude and opposite direction will cancel out each other.
Here, r₁₂ = 0.550m and r₂₃ = 0.550m. Then the distance from the first charge to the third one will be:
r₁₃ = r₁₂ + r₂₃ = 0.550 + 0.550 = 1.1m
According to the Coulomb's law, the net force on particle q₂ will be equal to the sum of the forces on particle q₂ from the particle q₁ and q₃.
F₃+ = F₁₃ +F₂₃ = q₁q₂/r²₁₃ + k q₃q₂/r²₂₃
Where, k = 9 × 10⁹ N m²/C²
Substituting numerical values, we obtain:
F₃ = 9 × 10⁹ (-66.3 × 10⁻⁶)(-43.2 × 9 × 10⁻⁶)/ 1.45² + 9 × 10⁹ × 108 × 10⁻⁶ (-43.2 × 10⁻⁶) / 0.550²
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Answer: -74.12
Explanation:
Credit to the comment above! this answer works for Acellus! :D