Inside a laser apparatus, the stimulation and relaxation of electrons in atoms cause many photons with the same wavelength to be continuously emitted.
From the questions given, the main objective is to fill in the gaps and add important information where necessary. The missing information is highlighted in bold and underlined.
Inside a laser apparatus, the stimulation and relaxation of electrons in atoms cause many photons with the same wavelength to be continuously emitted. When these photons are emitted, they travel between two reflective surfaces to form the wave that is represented in the simulationThis wave is the summation of all the photons being introduced with every oscillation, and as they continue to travel, the amplitude increases.This occurs because the photons are emitted in a coherent fashion; however, amplitude when the photons overlap in an incoherent fashion.In a laser device, a small portion of photons are permitted to escape (for use in an application). This is emulated in the simulation, by settling the Damping to Lots such that amplitude remains relatively constant when compared to damping of None. (Damping represents the Loss of photons.The generation of multiple wavelengths is possible in some laser-producing systems, and the diffraction angle can be varied to allow the isolation of different wavelengths. Finally, when the power of a laser is described, the wave property that is being referenced is a function of its frequency and amplitude.Therefore, we can conclude that we've fully understood the concept of emission of photons and wavelength in a laser apparatus.
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As shown in the diagram, an inflated balloon released from rest moves horizontally with velocity "v". The velocity of the balloon is most likely caused by ______
Answer:
Action reaction
Explanation:
Thus the response above is correct.
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Explain how the basic unit are combined to give the derived units of force, velocity, pressure and work
Velocity:
Velocity is change in displacement with respect to time:
[tex]\frac{\Delta x}{\Delta t}[/tex]
Analysing the units, meters (displacement) and seconds (time) are basic units:
[tex]\frac{m}{s}[/tex]
Therefore the unit of velocity is m/s
Force:
Newton's second law of motion:
[tex]F = ma[/tex]
Kilogram (mass) is a basic unit, and accelerations unit can be found using the equation:
[tex]a=\frac{\Delta v}{\Delta t}[/tex]
Analysing the units:
[tex]\frac{\frac{m}{s}}{s}=\frac{m}{s^2}[/tex]
Therefore, the unit of force is:
[tex]kg\frac{m}{s^2}[/tex]
Pressure:
Pressure is given by the equation:
[tex]P=\frac{F}{S}[/tex] where S is area of effect, F is force
Area for a basic rectangle (geometric shape is arbitrary for dimensional analysis) is found by multiplying two lengths:
[tex][l^2]=m^2[/tex], the unit of area
Dividing the aforementioned unit of force by the unit of area:
[tex]\frac{kg\frac{m}{s^2}}{m^2}=\frac{kg}{ms^2}[/tex], the unit of pressure
Work:
Work is given by the equation:
[tex]W=\vec{F}\cdot \vec{x}[/tex], (dot product may be assumed as normal multiplication for the purposes of unit analysis)
Knowing displacement's (x) unit is m:
[tex][W]=\frac{kgm}{s^2}m=\frac{kgm^2}{s^2}[/tex], the unit of work.
how can iron filings be used to map the magnetic field of a bar magnet?
A projectile is launched horizontally from a height of 25m and it is observed to land 50m from the base. What was the launch velocity?
The initial horizontal velocity of the projectile is 22.1 m/s.
The given parameters;
height of the projectile, h = 25 mhorizontal distance of the object, R = 50 mThe time of motion of the object is calculated as follows;
h = ut + ¹/₂gt²
where;
u is the initial vertical velocity = 0h = ¹/₂gt²
[tex]t = \sqrt{\frac{2h}{g} } \\\\t = \sqrt{\frac{2\times 25}{9.8} } \\\\t = 2.26 \ s[/tex]
The initial horizontal velocity of the projectile is calculated as follows;
R = vₓt
[tex]v_x = \frac{R}{t} \\\\v_x = \frac{50}{2.26} \\\\v_x = 22.1 \ m/s[/tex]
Thus, the initial horizontal velocity of the projectile is 22.1 m/s.
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X
x
2.5 N
1.7 N
2.5 N
Answer:
2.5*1.7/2.5
Explanation:
What are two factors that must be kept the same (constant) between both groups?
Must be given 30 mL of water for 7 days.
c. What is the independent variable?
d. What is the dependent variable?
e. Which is the experimental group?
f. Which is the control group?
g. What must be done to make this experiment valid?
Answer:
Which is the control group?
g. What must be done to make this experiment valid?
Explanation:
consider the collision between a car and a light truck whose weights are equal (M = m). If they are moving at the same speed when they collide, compare the size (or magnitude) of the forces between the car and the truck. Friction is so small that it can be ignored
The truck applies the same force to the car that the car applies to the truck. The truck applies the same force to the car that the car applies to the truck. According to Newton's third law, action and reaction have the same magnitude and move in the opposite direction.
What is force?Force is an external agent that can change the state of rest or motion of a body. It has a magnitude as well as a direction.
The direction of the force is the point where force is applied, and the application of force is the point where force is applied.
The concept of force is commonly explained in terms of Isaac Newton's three laws of motion, which are laid out in his Principia Mathematica.
The truck exerts the very same force on the car as the car exerts on the truck. The truck exerts this very same force on the car as the car exerts on the truck.
Action and reaction have the same amplitude and move in the opposite direction, according to Newton's third law.
Thus, this can be the comparison in the given scenario.
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Your question seems incomplete, the complete question is:
Consider the collision between a car and a
light truck whose weights are equal (M = m). If they are moving at the same speed when they collide, compare the size (or magnitude) of the forces between the car and the truck. Friction is so small that it can be ignored.
Compare the forces if the light truck is standing
still when the car hits it.
A delivery truck travels 18 blocks north, 10 blocks east, and 16 blacks south What is the
distance traveled and displacement? Assume all blocks are the same length
Force Unit
Answer:
Traveled north = 18 blocks
Traveled east = 10 blocks
Traveled south = 16 blocks
So total distance = (18+10+16) blocks = 44 blocks
as north and south are opposite
so traveled displacement from up to down is = (18-16) blocks = 2 blocks
and starting to east distance is 10 blocks
so using pythagoras theorem the displacement
= [tex]\sqrt{10^{2}+2^{2} }[/tex] blocks
= [tex]\sqrt{104}[/tex] blocks
= [tex]2\sqrt{26}[/tex] blocks
= 10.198 blocks (approx.)
ANS: distance=44 blocks, displacement=10.198 blocks (approx.)
Explanation:
Which force allows you to speed up, slow down, and make turns?
Answer: Friction force
Happy To help ;)
Explanation:
Within a period of the periodic table, how do the properties of the elements vary?
Answer:
Elements in the same period have the same number of electron shells; moving across a period (so progressing from group to group), elements gain electrons and protons and become less metallic. This arrangement reflects the periodic recurrence of similar properties as the atomic number increases.
Explanation:
The Periodic Table can predict the properties of new elements, because it organizes the elements according to their atomic numbers. ... They hope that the two nuclei at the centre of these atoms will fuse and form a heavier nucleus. When these heavy elements form, they are usually highly unstable.
A vector starts at the point (0, 0) and ends at (3, 1). What is the magnitude and direction of the displacement?
Answer:
tbh vector does not have any direction at all the answer is 0
*
1. The ability to cause change; the ability to do work is energy.
(5 Points)
True
False
Answer:
True
Explanation:
Question pictured below
A 0.80-kg ball is thrown with a velocity of 13 m/s. The ball hit a 0.12-kg bowling pin. When the ball hits the pin, the pin goes flying forward at 6 m/s. What is the velocity of the ball after it hits the pin?
When the ball of mass 0.80kg hits a bowling pin of 0.12 kg, the velocity of the ball after it hits the pin = 12.1 m/s
The mass of the ball, [tex]m_1=0.80 kg[/tex]
The initial speed of the ball, [tex]u_1=13 m/s[/tex]
The mass of the bowling pin, [tex]m_2=0.12kg[/tex]
The initial speed of the bowling pin, [tex]u_2=0m/s[/tex]
The final speed of the bowling pin, [tex]v_2= 6m/s[/tex]
The final speed of the ball after collision, [tex]v_1 = ?[/tex]
According to the law of momentum conservation
[tex]m_1u_1+m_2u_2=m_1v_1+m_2v_2\\\\0.80(13)+0.12(0)=0.80v_1+0.12(6)\\\\10.4+0=0.8v_1+0.72\\\\0.8v_1=10.4-0.72\\\\0.8v_1=9.68\\\\v_1=\frac{9.68}{0.8} \\\\v_1=12.1m/s[/tex]
The velocity of the ball after it hits the pin = 12.1 m/s
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A truck of mass 10000kg moving through a sloppy road of length 20km with the help of 5000N force. If the truck climbs the vertical height of 200m and it's efficiency is 80% calculate the additional mass that can be carried by the truck ?
Answer:
30000
Explanation:
Statement of the given problem,
A truck of mass 10000 kg is moving through a sloppy road of length 20 km with the help of 5000 N force. If the truck climb the vertical height of 200 m and its efficiency is 80% calculate the additional mass that can be carried by the truck?
Let M denotes the additional mass (in kg) that can be carried by the truck.
From above data we determine that,
P.E. gained by total mass at the vertical height of 200 m = 80% of work done by the applied force [road elevation = tan^-1 (200/20000) = 0.57° (assumed negligible)]
Hence we get following relation,
(10000 + M)*g*200 = 5000*20*1000*80/100 [g = gravitational acceleration]
or 10000 + M = 50000*8/g = 50000*8/10 [g = 10 m/s^2 (assumed)]
or M = 40000 - 10000 = 30000 (kg) [Ans]
Therese plays lacrosse, but she has injured her ankle and has to take a few weeks off. She is finding that she has a lot of trouble sleeping since she is no longer practicing several days a week. What BEST explains this?
OPTIONS:
A.
She needs regular exercise to move oxygen through the blood.
B.
She clearly requires more exercise than most people to relieve stress.
C.
She is not releasing the endorphins that she used to, and that impacts her sleep.
D.
She is likely not maintaining the healthy habits that she did when she was practicing.
PLEASE NO LINKS
Answer:
C. She is not releasing the endorphins that she used to, and that impacts her sleep.
Explanation:
The best explanation for why Therese is having trouble sleeping is that she is not releasing the endorphins that she used to, and that impacts her sleep.
Hence, the correct option is C.
Endorphins are hormones that are released during exercise. They have mood-boosting and pain-relieving effects. When Therese stops exercising, she is no longer releasing as many endorphins, which can lead to moodiness and difficulty sleeping.
Option A is incorrect because exercise does not directly move oxygen through the blood. Instead, it increases the heart rate and breathing rate, which in turn increases the amount of oxygen that is delivered to the tissues.
Option B is incorrect because there is no evidence to suggest that Therese requires more exercise than most people to relieve stress. In fact, most people find that regular exercise can help to reduce stress levels.
Option D is incorrect because it is unlikely that Therese is not maintaining the healthy habits that she did when she was practicing. Lacrosse is a physically demanding sport, so it is likely that Therese is still eating healthy and getting enough sleep.
Therefore, the best explanation for why Therese is having trouble sleeping is that she is not releasing the endorphins that she used to, and that impacts her sleep.
Hence, the correct option is C.
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The walls of a dam are much thicker at the base than at the top
Answer:
I guess it is the reason
Explanation:
A dam is thicker at the bottom than at the top because the forces exerted are strongest close to the ground. Water pressure increases proportionally with depth, so the lower portion of the dam has greater water pressure exerted upon it. The increasing thickness of the lower dam also helps it support its own weight.
This is because of Pressure.
Pressure is directly proportional to depth and the deeper the length the high the pressure. Thus at the bottom, water pressure is very high and the walls must be made thicker to accommodate that pressure.
V1= 25 L
T1= 200 degrees Kelvin
V2= 30 L
T2= ? degrees Kelvin
an object is accelerating if there is a change in speed and which factor?
Answer:
Speed and direction.
Explanation:
When an object accelerates, its velocity changes. Velocity is often thought of as an object's speed with a direction. Thus, objects accelerating are either speeding up, slowing down or changing directions.
what's the relationship between magnetism and birds?
Answer:
can detect axis of magnetic field
Explanation:
Answer:
Birds can see the Earth’s magnetic fields. They just found out that this ability is the result of a special protein in the birds’ eyes.
Explanation:
You can't see anything if time stop..
Explain
You can't see anything if time would stop:
This is in fact true...if time stops then photons will also stop and they will unable to reach your eyes, so would your metabolism and cellular activity. Thus you won't be able to see anything.
Hope this helped you- have a good day bro cya)
Answer:
You can't see anything if time stop..
Explanation:
IG
what is the use of telescope
Answer:
The use of a telescope is to see distant objects
Explanation:
For example: you can look through a telescope to see constellations and stars. Hope this helps <3
please help the picture is above !
Answer:
its C- 20
Explanation:
Help me please! I really need it!
Answer:
5 Hz
Explanation:
count the number of cycles per 1 second
axit amin có chức năng gì sau đây
Answer:
i dont understand sorry
Match the words in the left-hand column to the appropriate blank in the sentences in the right-hand column. Use each word only once.
1. Nuclear fusion of hydrogen into helium occurs in the_______ .
2. Energy moves through the Sun's ________ by means of the rising of hot gas and falling of cooler gas.
3. Nearly all the visible light we see from the Sun is emitted from the_______ .
4. Most of the Sun's ultraviolet light is emitted from the narrow layer called the _______where temperature increases with altitude.
5. We can see the Sun's _______ most easily during total solar eclipses.
6. The _______ is the layer of the Sun between its core and convection zone.
The answer to the question are bulleted below
CoreConvection ZonePhotosphereChromosphereCoronaRadiation Zone1. Nuclear fusion of hydrogen into helium occurs in the core.
2. Energy moves through the Sun's Convection Zone by means of the rising of hot gas and falling of cooler gas.
3. Nearly all the visible light we see from the Sun is emitted from the Photosphere.
4. Most of the Sun's ultraviolet light is emitted from the narrow layer called the Chromosphere where temperature increases with altitude.
5. We can see the Sun's Corona most easily during total solar eclipses.
6. The Radiation Zone is the layer of the Sun between its core and convection zone.
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Derive the relationship between g and G using the relationship calculate the value of g on earth
Answer:
A
Explanation:
The gravitational field on Saturn is 10.4 times its value on Earth.
a. What would a 100.0-kg mass weigh on Saturn?
b. If the gravitational field on the surface of Pluto is 0.08 times that of Mercury, what would a 7.0-kg mass weigh on Pluto?
Show all work!!
The weight of 100 kg mass on Saturn is 10,192 N.
The weight of 7.0 kg mass on Pluto is 2.01 N.
The given parameters;
acceleration due to gravity, = 10.4gmass of the Saturn, m = 100 kgacceleration due to gravity on mercury, = 3.59 m/s²The weight of 100 kg mass on Saturn is calculated as follows;
W = mg
W = 100 x 10.4 x 9.8
W = 10,192 N
The weight of 7.0 kg mass on Pluto is calculated as follows;
W = 7 x 0.08 x 3.59
W = 2.01 N
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A train travels 120 miles in 2.5 hours. What is its average speed?
Answer: 48 mph
Explanation: 48*2.5=120
Identify the topic sentence in the given paragraph.
Humans need sleep to help their bralns function properly. The brain needs a minimum number of hours to rest and organize itself. The number of hours depends on age. For example, babies need an average of 14 to 16 hours of rest daily, while adults can function on about 6 to 8 hours. Scientists are not completely sure what the brain does during sleep periods, but they do know that the brain sorts and stores information and replaces chemicals when a person sleeps.
Please help
No links
Humans need sleep to help their brains function properly. The topic sentence in the given paragraph is "Humans need sleep to help their brains function properly." This sentence introduces the main idea of the paragraph, which is the importance of sleep for brain functioning.
1. The paragraph begins by stating that humans need sleep to help their brains function properly.
2. It further explains that the brain requires a minimum number of hours to rest and organize itself.
3. The number of hours needed for sleep depends on age, with babies needing an average of 14 to 16 hours of rest daily.
4. In contrast, adults can function on about 6 to 8 hours of sleep.
5. The paragraph mentions that scientists are not completely sure about the specific activities of the brain during sleep periods.
6. However, they do know that the brain sorts and stores information and replaces chemicals when a person sleeps.
Overall, the paragraph discusses the significance of sleep for brain function and highlights that sleep plays a role in information processing and chemical restoration in the brain. The topic sentence sets the stage by emphasizing the importance of sleep for humans' brain functioning, and the subsequent sentences provide additional details and explanations related to the topic.
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