rank the light intensity, from largest to smallest, at the point p in the figures.
Answers
The light intensity from largest to smallest ranking will be :B > D > A=C > E. where the area is measured on the plane perpendicular to the direction .
In physics, the intensity is the amount of energy that is transmitted per unit area, and the area is measured on a plane perpendicular to the direction that the energy equation will propagate. I = P/ 4(d2), with P denoting power. Let power of 1 bulb equal = P where I = intensity, d = distance at which the intensity must be determined.
case A = I = P / (1) (1) 1 = P case with 2 = P In the situation B = I = 2P/(0.5)2 = 8P C = I = 4P / (2) (2) ^2 = P case Case (1)2 = 3P: D = I = 3P E = I = 2P /(1.5) (1.5) ^2 = 0.8 P
B > D > A=C > E will be the order of light intensity, from greatest to least.
rank the light intensity, from largest to smallest, at the point p in the figures?
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plss answer my question i really need it
Answers
A school bus uses petroleum as chemical potential energy. This energy
is
transferred through the engine, which in turn moves the bus. The movement of the
bus is an example of what type of energy?
Answers
Answer: kinetic
Explanation: Just took a test and it was right
Total stopping distance includes
Answers
total stopping distance is the distance a vehicle travels from the moment the driver applies the brakes until the vehicle comes to a complete stop. It consists of two main components: the thinking distance and the braking distance.
total stopping distance refers to the distance a vehicle travels from the moment the driver applies the brakes until the vehicle comes to a complete stop. It is composed of two main components: the thinking distance and the braking distance.
The thinking distance is the distance the vehicle travels during the driver's reaction time. It is the time it takes for the driver to perceive a hazard and apply the brakes. Factors that can affect the thinking distance include the driver's alertness, distractions, and the speed of the vehicle.
The braking distance is the distance the vehicle travels while the brakes are applied and the vehicle decelerates. It depends on factors such as the speed of the vehicle, the condition of the road, and the efficiency of the brakes.
Therefore, the total stopping distance is influenced by both the thinking distance and the braking distance. It is important for drivers to maintain a safe following distance and be aware of their vehicle's stopping capabilities to ensure they can stop in time to avoid collisions.
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Total stopping distance includes b. The distance the car travels during the driver's reaction time
The distance a car travels during the driver's reaction time and the distance it travels while the driver is braking are included in the total stopping distance. It's possible that a driver's foot isn't on the brake when they realise they need to stop the car. The car, for instance, is going at a constant speed.
The moment the driver realises that the vehicle needs to be stopped, his or her foot is moved to the brake pedal. The reaction distance is what we refer to as. The car slows down as soon as the brakes are deployed. The braking distance is the length of time needed to stop. Total stopping distance is calculated by summing reaction distance and braking distance.
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Complete Question:
Total stopping distance includes
a. The time period when it is at hault
b. The distance the car travels during the driver's reaction time
c. Distance travelled between the moment you first see a reason to stop to the moment you use the brake.
during an isothermal process, 5.0 j of heat is removed from an ideal gas. what is the change in internal energy? group of answer choices 5.0 j 10 j 2.5 j zero
Answers
the answer is zero (0). Isothermal process is a thermodynamic process that involves no change in temperature. Hence, during an isothermal process, the internal energy remains constant.
Therefore, the change in internal energy, ΔU = 0. Thus, the answer to your question is zero. The First Law of Thermodynamics states that the change in internal energy of a system is the sum of heat absorbed and work done by the system. It can be expressed as follows:ΔU = Q + W where ΔU is the change in internal energy, Q is the heat absorbed, and W is the work done by the system. During an isothermal process, the temperature of the gas remains constant. Hence, ΔU = 0. If 5.0 J of heat is removed from an ideal gas during an isothermal process, the gas must perform an equal amount of work to maintain its temperature. Therefore, the work done by the gas, W = -5.0 J. Since ΔU = Q + W, the change in internal energy, ΔU = Q + (-5.0 J) = Q - 5.0 J. Since the internal energy is constant during an isothermal process, the change in internal energy, ΔU = 0 - 5.0 J = -5.0 J. Hence, the answer is zero (0).
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how would electron domains impact the magnetism of the substance?
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an earth satellite is in an elliptical orbit. the satellite travels fastest when it is farthest from the earth. nearest the earth. it travels at constant speed everywhere in orbit.
Answers
An earth satellite is in an elliptical orbit. The satellite travels fastest when it is nearest to the earth.
A satellite is an object which revolves around a planet, and an elliptical orbit is one where the distance from the central body varies from time to time.
The satellite covers the maximum distance from the central body at the endpoints of the major axis and it covers the minimum distance at the endpoints of the minor axis.
When an earth satellite is in an elliptical orbit, the gravitational force varies with distance from the earth's surface. Therefore, the speed of the satellite varies with distance.
Therefore, the option "nearest to the earth" is correct.
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A man lifts a 4.300 kg stone vertically with his hand at a constant upward acceleration of 1.200 m/s2. what is the magnitude of the total force of the stone on the man's hand?
Answers
The magnitude of the total force of the stone on the man's hand is 1.43N
What is acceleration?The rate at which an object's velocity with respect to time changes is referred to as acceleration in mechanics.
The direction of the net force acting on an object determines the direction of its acceleration.
Newton's Second Law's Second Law of Acceleration describes the magnitude of an object's acceleration.
Nis normal force exerted by stone on hand.
According to Newton's third law stone also exerted the same force.
⇒ N-mg= ma
⇒ N=1.3(9.8+1.2)
⇒ N=1.43newton
The magnitude of the total force of the stone on the man's hand is 1.43N
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Which pair of numbers has the same distance between each other on a number line as the pair -7. 25 and 3
Answers
The pair of numbers has the same distance between each other on a number line as the pair -7.25 and 3 is: A. 1.75 and 12.
What is a number line?In Geometry, a number line is a type of graph that is composed of a graduated straight line, which typically comprises both negative and positive numerical values (numbers) that are located at equal intervals along its length.
Next, we would determine the distance between the pair -7.25 and 3 as follows:
Distance = 3 - (-7.25)
Distance = 3 + 7.25
Distance = 10.25 units.
For 1.75 and 12, we have:
Distance = 12 - 1.75
Distance = 10.25 units.
For -0.25 and 4, we have:
Distance = 4 + 0.25
Distance = 4.25 units.
For -2.25 and 7.25, we have:
Distance = 7.25 + 2.25
Distance = 9.50 units.
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Particle Physics: Fundamental particles are grouped into two main groups: hadrons, which are made of quarks, and what other group, which includes electrons and muons?
Answers
The strong nuclear force, leptons do not interact with this force and include particles like electrons and muons.
Fundamental particles are the building blocks of matter and can be grouped into two categories based on their intrinsic properties and interactions with other particles: fermions and bosons. Fermions are the particles that make up matter and are divided into two subcategories: quarks and leptons. Leptons are fundamental particles that do not participate in the strong nuclear force, while quarks are particles that do participate in the strong nuclear force and are always found within hadrons, which are particles made up of quarks.
Hadrons are subdivided into two categories: baryons and mesons. Baryons are hadrons made up of three quarks, while mesons are hadrons made up of one quark and one antiquark. Some examples of baryons include the proton and the neutron, which are both made up of up and down quarks. Mesons include particles like the pion, kaon, and eta meson.
Leptons, on the other hand, are particles that do not interact with the strong nuclear force and include electrons, muons, and taus, as well as their corresponding neutrinos. Electrons are negatively charged particles that orbit the nucleus of atoms, while muons are similar in many ways to electrons, but are about 200 times more massive. Taus are even more massive than muons.
Overall, the categorization of fundamental particles into hadrons and leptons is based on their interactions with other particles, particularly with respect to the strong nuclear force. While hadrons are made up of quarks and are subject to the strong nuclear force, leptons do not interact with this force and include particles like electrons and muons.
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If the half-life of iodine-131 is 8 days, how much of a 5.00 sample is left after 32 days?
A) 0.31
B) 2.5
C) 1.25
D) 0.62
Answers
Answer:
Option A, 0.31
Explanation:
n = Time taken / half life
n = 32/ 8
= 4
Remaining fraction = 1/2^n
= 1/2⁴
= 1/16
Amount of iodine-131 left = 1/16 × 5
= 0.3125
marble roller coaster lab report
Answers
A lab report on a scientific experiment in which students construct a roller coaster lab report for a tiny marble is called a "Marble Roller Coaster."
The experiment's goal is to comprehend physics concepts like potential and kinetic energy, friction, and gravity. The goal of the lab report, materials utilised, steps taken, data gathered, and findings achieved are often covered in parts of the report. A lab report on a scientific experiment in which students construct a roller coaster for a tiny marble is called a "Marble Roller Coaster." The discussion of the findings, in which the students analyse the information and make inferences about the experiment, is also included in the report. The study could potentially include suggestions for enhancing the roller coaster's design in the future.
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what is marble roller coaster lab report?
In atrial fibrillation, the atria do not properly contract: Howv would this be apparent on an ECG? - P waves would be reduced or absent
- T waves would be recluced or absent - QRS waves would be reduced or absent
Answers
The right response is option (a). ECGs that are considered normal This P wave denotes either atrial contraction or depolarization. Ventricular depolarization or contraction is represented by the QRS complex.
3. Repolarization of the ventricles at the T wave.
When the atria don't beat in time with both the ventricles, the condition is known as atrial fibrillation.
• A lack of atrial activity might exist.
ECG in atrial fibrillation: The lack of "P" waves is the telltale indication of both the condition. Atrial activity is absent, which is the reason of this.
• The presence of aberrant fibrillary waves by place of the P waves implies abnormal atrial contraction.
• The P wave ought to be diminished or missing.
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data?
11.) Hair color, gender, birthday, softness of a pillow are all examples of
A.) Qualitativel
B.) Quaternary
C.) Quantitatſve
Answers
Explanation:I don’t know what B is and C means numbers so A is correct
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Using the graph from part (c) calculate the spring constant of the spring that the student
used.
Give your answer in newtons per metre
the image shows the information that was on the graph
Answers
Answer:
1.75 is the unit rate so yeah
can a system have kinetic and potential energy at the same time
Answers
Answer:
yes
Explanation:
...........................
how could you test the idea that solar enefgy is required for the hydrolisis of water during phtotosyntheiss
Answers
One way to test this hypothesis would be to conduct an experiment in which water is subjected to light sources of varying intensity.
What is phtotosyntheiss?Photosynthesis is a process used by plants and some other organisms to convert light energy, typically from the sun, into chemical energy that can be used to fuel biological processes. During photosynthesis, light energy is absorbed by chlorophyll molecules in the plant's leaves and is then used to convert carbon dioxide and water into sugars and oxygen. This process provides the oxygen we breathe and the food we eat, making it one of the most important processes on Earth.
During the experiment, the rate of hydrolisis can be measured, and this data can then be compared to determine if the energy from the solar source is required for hydrolisis. Additionally, a control experiment can be conducted using light sources that do not contain solar energy, such as a light bulb, to compare to the solar energy experiment. This will allow scientists to determine the effect of the solar energy on the rate of hydrolisis, and confirm or refute the hypothesis.
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What type of relationship do frequency and wavelength have?
Answers
Frequency and wavelength are inversely proportional to each other. The wave with the greatest frequency has the shortest wavelength. Twice the frequency means one-half the wavelength. For this reason, the wavelength ratio is the inverse of the frequency ratio.
an earthquake sends seismic waves outward from the epicenter. the waves travel through different media in different directions. what will be true for all people who feel the earth shaking?(1 point) responses the seismic waves will travel outward at the same speed in all directions. the seismic waves will travel outward at the same speed in all directions. the amplitude of the shaking will be the same for all observers. the amplitude of the shaking will be the same for all observers. the earth will rise and fall with the same frequency. the earth will rise and fall with the same frequency. the seismic waves will be equally far apart for all observers.
Answers
Seismic waves are sent from the AP center in an earthquake. Waves move through various materials in a variety of orientations. The seismic waves would go forth at the same pace in all directions, which would be true for everyone who felt the ground trembling. Here option A is the correct answer.
When an earthquake occurs, it generates seismic waves that travel through the Earth's layers and cause the ground to shake. These waves propagate in different directions and interact with the media they encounter, including rock, soil, and water. As a result, the shaking experienced by people who feel the earthquake may vary depending on their location and the type of surface they are standing on.
Out of the given options, only option A can be considered true for all people who feel earth-shaking. This is because seismic waves travel outward from the epicenter in all directions at the same speed, regardless of the type of surface they encounter. However, the other options are not necessarily true for all observers.
Option B, which suggests that the amplitude of the shaking will be the same for all observers, is not accurate because the intensity of the shaking can vary depending on factors such as the distance from the epicenter, the direction of propagation, and the type of soil or rock that the seismic waves encounter.
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Complete question:
An earthquake sends seismic waves outward from the epicenter. the waves travel through different media in different directions. what will be true for all people who feel the earth shaking?(1 point)
A - the seismic waves will travel outward at the same speed in all directions.
B - the amplitude of the shaking will be the same for all observers.
C - the earth will rise and fall with the same frequency.
D - the seismic waves will be equally far apart for all observers.
A block of mass M is attached to a spring of negligible mass and can slide on a horizontal surface along the x-direction, as shown above. There is friction present between the block and the surface. The spring exerts no force on the block when the center of the block is located at x=0. At the instant shown above, the block is located at x=0 and moving toward the right with speed v=v0. (a) For the instant shown above, with the block located at x=0 and moving to the right, predict the direction of the net force on the block. If the net force is zero, select “The net force is zero.”
_ To the left _ The net force is zero _ To the right
Briefly justify your prediction.
Answers
Answer:
Because of the frictional force, the net force will oppose direction of the block and be directed towards the left even tho the spring exerts no force at this point
What was discovered in 1965 and is believed to be leftover thermal energy from the Big Bang?
A. Red shift
B. The Eagle Nebula
C. The Doppler effect
D. Background Radiation
Answers
Answer
this is what i found. it might be D
Explanation:
dunno if helps/
The Cosmic Microwave Background (CMB) are a type of electromagnetic radiation which were believed to be the remnant of thermal energy from the big bang. ... The radiation is known to be the remnant leftover of the big bang
Answer:
D
Explanation:
several sites say background radiation
since the original discovery of magnetic reversals, scientists have shown that these reversals have occurred over the past 10 million years at an average rate of 4 to 5 reversals per million years. the last such reversal occurred about how many years ago?
Answers
The last magnetic reversal occurred around 780,000 years ago.
Geomagnetic reversal is a change in the planet's magnetic field, which means the position of magnetic north and sound are interchanged. It's caused by the rotation of the planet that caused buoyant fluid to rise in curved trajectories. The reversals occur at random. Scientists have known that there have been 183 reversals over the last 83 million years, with the latest occurring around 780,000 years ago (called the Brunhes-Matuyama reversal).
The image below is a supercomputer model of the Earth's magnetic field created by NASA. The left one is a normal magnetic field, and the right one is the magnetic field during the upheaval of a reversal.
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The relation "having the same color" is reflexive. True False
Answers
The relation of having the same color is reflexive. Therefore, the statement is true.
A reflexive relation is one in which every element maps its own component. Every component of the set reflects itself in its own image.
A reflexive relation on a set I is also represented as L = {(a, a): a ∈ I}, where I L ⊆ R and R is a relation defined on the set I.
According to the question,
if we have the same color, y
then,
(y, y) belongs to R
Therefore, color y and color y have the same color.
Hence, the relation between color y and R is reflexive. The statement is true.
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A 50 kg man is standing at the earth's surface.
(a) what is the approximate magnitude of the gravitational force on the man by the earth. give your answer in newtons. get the mass and radius of the earth from the inside front cover of your text. remember, enter only the number; don't try to enter the units.
? n
(b) what is the approximate magnitude of the force of gravitation on the same man by the sun. you may approximate the distance from the sun to the man by the distance from the sun to the earth; get that distance, as well as the mass of the sun, from the inside front cover of your book.
? n
(c) what is the approximate magnitude of the force of gravitation on the same man by the moon. you may approximate the distance from the moon to the man by the distance from the moon to the earth; get that distance, as well as the mass of the moon, from the inside front cover of your book.
Answers
A 50 kg man is standing at the earth's surface. The approximate magnitude by the earth is 491 N. The approximate magnitude by the Sun is 1330 N. The approximate magnitude by the Moon is 1.98 N.
(a) The approximate magnitude of the gravitational force on the man by the Earth can be calculated using Newton's law of universal gravitation:
F = G * (m1 * m2) /\(r^2\)
where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between their centers.
The mass of the man is given as 50 kg. The mass and radius of the Earth can be found from the inside front cover of the textbook. Let's assume the mass of the Earth is approximately 5.98 × \(10^{24\) kg and the radius is approximately 6.37 × \(10^6\) meters.
Plugging in the values into the formula, we have:
F = (6.67 × \(10{^-11\) \(Nm^2/kg^2\)) * (50 kg * 5.98 × \(10^{24\) kg) / (6.37 × \(10^6\) meters)^2
Calculating this expression gives us:
F ≈ 4.91 × \(10^2\) N
Therefore, the approximate magnitude of the gravitational force on the man by the Earth is 491 N.
(b) The approximate magnitude of the gravitational force on the man by the Sun can be calculated in a similar manner. Let's assume the mass of the Sun is approximately 1.99 × \(10^{30\) kg, and the distance between the Sun and the Earth is approximately 1.50 × \(10^{11\) meters.
Using the formula for gravitational force:
F = (6.67 × \(10{^-11\) \(Nm^2/kg^2\)) * (50 kg * 1.99 × \(10^{30\) kg) / (1.50 × \(10^{11\) meters)^2
Calculating this expression gives us:
F ≈ 1.33 × \(10^3\) N
Therefore, the approximate magnitude of the gravitational force on the man by the Sun is 1330 N.
(c) For the Moon, we can make a similar calculation. Let's assume the mass of the Moon is approximately 7.35 × \(10^{22\) kg, and the distance between the Moon and the Earth is approximately 3.84 × \(10^8\) meters.
Using the formula for gravitational force:
F = (6.67 × \(10{^-11\) \(Nm^2/kg^2\)) * (50 kg * 7.35 × \(10^{22\) kg) / (3.84 × \(10^8\)meters)^2
Calculating this expression gives us:
F ≈ 1.98 N
Therefore, the approximate magnitude of the gravitational force on the man by the Moon is 1.98 N.
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Name three common areas where unethical situations can occur in research.
Answers
Answer:
Unethical behavior or ethical code are very important ion research or different areas. Ethical code protects people from misbehavior, disclose their privacy etc.
Explanation:
Many of people walk to the working place where most of people witnessed the unethical behavior with them. There are many area that are responsible for misconduct such as :
Misusing company timeAbusive behavior by researcher in field work.Leak privacy by a doctor of patient. In organization lying to the employee related to contract.To violet the company policies. In clinical setting misbehave with patient that unethical Unethical behavior could occur in business, among individual, by professional and among the political parties and social workers.what is the momentum of a toy car traveling at 9.46m/s if it has a mass of 3.68kg
Answers
The momentum of the toy car is 34.8128 kg m/s after traveling at 9.46m/s and if it has a mass of 3.68kg.
Momentum is defined as the product of an object's mass and velocity. The formula for momentum is given as p = mv, where p is momentum, m is mass, and v is velocity. In this case, the toy car has a mass of 3.68 kg and is traveling at a velocity of 9.46 m/s. To calculate its momentum, we simply plug these values into the formula:
p = mv
p = 3.68 kg x 9.46 m/s
p = 34.8128 kg m/s
Therefore, the momentum of the toy car is 34.8128 kg m/s. This means that the toy car has a large amount of momentum due to its high velocity, which could make it difficult to stop or change its direction quickly.
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What are the factors that change the pattern observed on a screen during Young’s double-slit experiment?
Answers
The factors that can change the pattern observed on a screen during Young's double-slit experiment are given below:1. Width of the slit. 2. Distance between slits. 3. Distance between slits and screen. 4. Wavelength of the incident light. 5. Refractive index of the medium.
The factors that can change the pattern observed on a screen during Young's double-slit experiment are given below:
1. Width of the slit. The width of the slit can influence the diffraction pattern that is observed on a screen. When the width of the slit decreases, the central maximum of the diffraction pattern becomes broader, and the intensity of the secondary maxima reduces.
2. Distance between slits. The distance between the slits in the double-slit experiment also affects the pattern on the screen. The distance between the slits is equal to the spacing between the maxima. If the spacing between the slits decreases, the distance between the maxima decreases, and vice versa.
3. Distance between slits and screen. The distance between the slits and the screen is also a factor that can affect the diffraction pattern. When the distance increases, the spacing between the maxima becomes wider, and the intensity of the maxima decreases.
4. Wavelength of the incident light. The wavelength of the incident light is another factor that affects the diffraction pattern on the screen. When the wavelength increases, the spacing between the maxima increases, and vice versa.
5. Refractive index of the medium. The refractive index of the medium in which the light travels can also influence the diffraction pattern observed on a screen.
When the refractive index of the medium changes, the position of the maxima changes as well. These are the factors that can change the pattern observed on a screen during Young's double-slit experiment.
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What do you mean by Aquatic habitat? Give 2 examples of Desert habitat
Answers
Answer:
hope this answer will help you
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A ball hits a wall horizontally at 6m/s and rebounces at 4.4m/s the ball is in contact with wall for 0.04 sec. what is the acceleration.
Answers
Answer:
Acceleration (a) = 40 m/s²
Explanation:
Given:
Initial velocity (u) = 6 m/s
Final velocity (v) = 4.4 m/s
Time taken (t) = 0.04sec
Find:
Acceleration (a) = ?
Computation:
We know that,
⇒ v = u + at
⇒ a = (v - u) / t
⇒ Acceleration (a) = (4.4 - 6) / 0.04
⇒ Acceleration (a) = (-1.6) / 0.04
Acceleration (a) = 40 m/s²
The rate of change of velocity is called:.
Answers
Answer: Acceleration
Detailed Explanation:
Acceleration is defined as the rate of change of velocity.
It is the disturbance or oscillation that travels through space and matter, accompanied by a transfer of energy.
Answers
Answer:
wave
Explanation:
A wave is defined as the disturbance that causes the movement of energy. The energy is transferred as the waves move from one place to another. A medium is required for the transfer of energy. Usually a wave travels through air or water. The process is carried on at a specific speed that is termed as the speed of propagation.