b) Work = force x displacement = 215 N x (-4.60 m) = -992.5 J. the same carries the same suitcase back down the same set of stairs. how much work does the passenger do on the suitcase to carry it down the stairs.
what is work ?
Work is an activity that involves physical or mental effort undertaken in order to achieve a result. It is usually done in exchange for money, but can also be done out of necessity or for pleasure. Work is often seen as an important part of life and it can come in many different forms, ranging from manual labour to professional and creative work.
Work can be rewarding and provide a sense of purpose and achievement for those who engage in it. It can also be a source of stress, especially when it is not well-suited to an individual’s skills or needs. The type of work an individual does can vary depending on their skills, interests, and resources. Working can help to build relationships, develop skills, and provide financial security.
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a 37 g plastic ball is moving to the left at 14 m/s . how much work must be done on the ball to cause it to move to the right at 14 m/s ?
A 37 g plastic ball is travelling to the left at 14 m/s, hence 3.6j of effort must be done on the ball to make it move to the right. The definition of work done includes both the application of force.
Concerning the body and its movement. Consider a block placed on a horizontal, frictionless surface. A fixed force F exerts its influence on this block. This force acts to move the body through a distance d in a straight line and in the force's direction.
Work done to stop the ball is equal to 1/2m(v1^2 - v2^2) = 1/2(0.037)(0 - 14^2) = -3.6j.
Work performed to accelerate the ball equals 1/2m(v1^2 - v2^2) = 1/2(0.037)(14^2 - 0) = 3.6j.
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is there a chest brace i can use because what can i use because it is to heavy to hold my cannon camera
There are several types of chest braces that can be used to support a heavy camera. The include a camera harness, camera chest mount and stabilizing rig
One option is a camera harness, which distributes the weight of the camera across the shoulders and upper chest. Another option is a camera chest mount, which attaches the camera directly to the chest using straps. A third option is a stabilizing rig, which attaches to the camera and uses counterweights to balance the camera and reduce the strain on the user's arms. It is important to use the chest brace that best fits your needs and also consult with a professional if you have any doubts.
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calculate the maximum centripetal acceleration that a test-tube sample held in the centrifuge arm 15.6 cm from the rotation axis must withstand.
15650 revs min & seconds = 260.833 revs a sec. If r = 15.7 mm, c=2(3.14)r ≈ 98.646 cm A rate of 0.98646 m/s. A max gravity force so a vial set as in centrifuge leg will life is eq(v2)/r = (0.986462)/0.157=6.19811 m/s2.
What does the centrifugation process entail?The process of centrifugation involves rapidly spinning molecules in solution around in an axle (in a centrifugal rotor) to separate them based on their densities. It is one of the more practical and widely used procedures in molecular biology labs.
Why do people use centrifuges?To sort fluids, gasses, or liquids depending on density, centrifuges are employed in a variety of laboratories. The purification of cells, organelles, viruses, proteins, and nucleic acids is a common task for centrifuges in both research and clinical facilities.
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A woman wishes to move a basket of grapes 10 m. How many seconds will it take her if she uses 14 N of force and 2 W of power?
Answer:
Explanation:
Assuming that the woman is moving the basket of grapes at a constant speed, we can calculate the time it will take her by using the equation t = F/P, where t is the time in seconds, F is the force in newtons, and P is the power in watts. Plugging in the given values, we get t = 14/2 = 7 seconds. Therefore, it will take the woman 7 seconds to move the basket of grapes 10 m using 14 N of force and 2 W of power.
The gravitational force between two objects is proportional to?
Answer:
it is proportional to masses of two objects
A 7,500-W engine is used to lift an I-beam with a mass of 1,000 kg to a height of 150 m. How much work must be done to lift this mass at a constant speed? How long will it take?
Use these formulas: W = F x d F = m x 9.8 m/s² t = W/P
Answer:
Explanation:
The work that must be done to lift the mass is W = F x d = 1000 kg x 9.8 m/s2 x 150 m = 1,470,000 Joules (1.47 x 106 J).
The time it will take to lift the mass at a constant speed is t = W/P = 1.47 x 106 J/7500 W = 196 seconds (3 minutes 16 seconds).
Explanation:
Power = 7500 watts
mass = 1000kg
height/distance= 150m
work= ?
time = ?
second equation for motion
2nd law of newton
F = ma
for free fall motion a = g= 9.8
force = 9800Newton
now for work done
w = force into displacement
workdone = 1470000 Joules
now finally by power formula
p = workdone upon time
time = workdone upon power
time = 196 second
I hope this would help you!
an electromagnetic wave has a frequency of 12 mhz. what is its wavelength in vacuum?
The wavelength of an electromagnetic wave in a vacuum is equal to the speed of light (c) divided by the frequency (f): 2.5 x 10^2 m
What is electromagnetic wave?An electromagnetic wave is a type of energy wave that consists of oscillating electric and magnetic fields. These waves are generated by the vibration of electric charges and travel at the speed of light. Electromagnetic waves can be used to transmit information over long distances, such as in radio and television transmissions. They can also be used to transfer energy, such as in microwave ovens and solar cells. Electromagnetic waves come in many different forms, such as visible light, X-rays, and gamma rays.
λ = c/f
λ = 3.0 x 10^8 m/s / 12 x 10^6 Hz
λ = 2.5 x 10^2 m
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an object travels with a velocity represented by the function . the objects initial velocity is 5 m/s and it starts at a position of 10 m. determine the final position of the object after 20 seconds. also, determine its initial acceleration and its final acceleration. (4843 m, -3m/s2, 77 m/s2)
The initial acceleration is negative that is -3 m/s² and the final acceleration of the object is 77m/s². The final position is 4843meters. Thus, the correct option is A.
What is Acceleration?Acceleration is the change in the initial velocity and final velocity of an object. Acceleration is a vector quantity because it has both the magnitude and direction. The SI unit of acceleration is meter per second square (m/s²).
Velocity (v) = 2t² - 3t + 5
Initial velocity = 5m/s
Initial Position = 10m
v = ds/ dt
Sf - Si = [tex]\int\limits^t_t{v} \, dt[/tex]
where, upper t = final time and lower t = initial time
Sf - Si = [tex]\int\limits^20_0 {(2t^{2} - 3t + 5)} dx[/tex]
Sf - Si = (2t³/3 - 3t²/ 2 +5t)²⁰₀
Sf - 10 = 4833.3meters
Sf = 4833.3 + 10
Sf = 4843.3 meters
Acceleration = dv/dt
Acceleration = d/ dt (2t² - 3t + 5)
Acceleration = 4t - 3
Initial acceleration (ai at t = 0sec) = 4(0) - 3 = -3 m/s²
Final acceleration (at at t = 20sec) = 4(20) - 3 = 80 - 3 = 77m/s²
Therefore, the correct option is A.
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Five loops are formed of copper wire of the same gauge (cross-sectional area). Loops 1-4 are identical; Loop 5 has the same height as others but is longer. At the instant shown, all the loops are moving at the same speed in the directions indicated.There is a uniform magnetic field pointing out of the page in region I; in Region II there is no magnetic field. Ignore any interactions between the loops.A) For any loop that has an induced current, indicate the direction of the current.B) Rank the magnitude of the emfs around the loops. Explain your reasoning.C) Rank the magnitudes of the currents in the loops. Explain your reasoning.
E1=E4>E5>E2=E3 is the correct order of magnitudes induced in the loop. Region I has a magnetic field that is neither uniform nor steady and points out of the page. Disregard any communication between loops.
What in physics are magnitudes?In terms of physics, magnitude is just "distance or quantity." In terms of motion, it shows the absolute or relative size, direction, or movement of an object. It is used to describe something's size or scope .In physics, the term "magnitude" often refers to a size or amount.
What is an example of magnitude?The definition of magnitude is "how much of a quantity." The magnitude, for instance, can be utilized to explain the contrast between the speeds of a car and a bicycle.
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ILL GIVE BRAINLIST FOR SHOWING WORK!!
The description of the motion and the gravitational potential energy of the particles are as follows;
26. (2) Energy
27. (4) Work
28. (3) Energy kg·m²/s²
29. (2) Joule
30. (4) a 6.0-kg mass 5.0 m above the floor
31. (3) Gravitational potential energy remain the same and speed decreases
32. (2) B
33. About 9.81 Joules
34. Option (1)
35. (4) The gain is the same along all paths
36. (2) Speed decreases and the gravitational potential energy increases
What is the gravitational potential energy?Gravitational potential energy is the energy a body posses due to its relative posirtion.
26. A scalar quantity is a quantity that has only magnitude but no direction.
The quantity that has only magnitude is energy.
The correct option is (2) Energy
27. Energy is the ability to do work, therefore, work has the same unit as energy. The correct option is therefore;
(4) Work
28. Energy = Force × Distance
Force = Mass × Acceleration
The unit of force is therefore; kg·m/s²
The unit of energy is therefore; m × kg·m/s² = kg·m²/s²
The correct option is; (3) Energy; kg·m²/s²29. Gravitational potential energy, is a form of energy due to elevation, therefore, the unit is the Joule
The correct option is; (2) Joule
30. Gravitational potential energy can be found using the formula;
P.E. = m·g·h
Where;
m = The mass
g = The acceleration due to gravity
h = The height
The greatest gravitational potential is therefore;
6.0 kg × 9.81 m/s² × 5.0 m
The correct option is therefore;
(4) a 6.0-kg mass 5.0 m above the floor31. The rough horizontal surface decreases the speed. The elevation of the horizontal surface is constant, therefore, the gravitational potential energy remains the same.
The correct option is therefore;
(3) Gravitational potential energy remains the same and speed decreases
32. The gravitational potential energy of the cart is least at the lowest point.
The correct option is; (2) B
33. The gravitational energy with respect to Earth is found as follows;
5.00 kg × 2.00 m × 9.81 ² = 98.1 Joules
34. The equation for the gravitational potential energy is; P.E. = m·g·h
Therefore, P.E. is directly proportional to the distance above the Earth and graph is a straight line passing through the origin
Option (1) is correct
35. The change in elevation is the same for all 5. The correct option therefore is option (4)
(4) The gain is the same along all paths.
36. The speed of the ball decreases when it is thrown upwards, while the gravitational potential energy increases as the height increases, therefore;
(2) Speed decreases and the gravitational potemntial energy increases
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a lazy physics student is made to walk to the plank. the plank is 8m above the water. if the student is pushed off the plank with a horizontal velocity of 10m/s how long will it take him to hit the water?responses
If a 10 m/s velocity is used to force the pupil off the board. To reach the water will take 1.28 seconds.
What are some examples of velocity?The speed when something that moves in a specific direction is known as its velocity. as even the speed of something like a car driving north on something like a highway or the pace at which a rocket takes off.
Why is velocity either 0 or -?It only contains magnitude since it is a scale parameter. Since a negative sign indicates a direction and rate does not indicate direction, the value can only be positive or zero.
Δy = vi t+1/2 at^2
v_ i = 0
a = 9.8 m/s^2
8 = 0 + 1/2(9.8)t^2
t^2 = 1.63
t = 1.28 s
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hie can u help me solve this please
Write the following. as powers of 10, with one figure before the decimal point 0,000275
Answer:
Explanation:
2'75·10∧-4
Which of the following cannot overcome an objects inertia?
O
O
friction
A balanced force (net zero force)
Gravity
An unbalanced force
An unbalanced force cannot overcome an objects inertia.
Define inertia?
A property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force. : an analogous property of other physical quantities (such as electricity) : indisposition to motion, exertion, or change : inertness.The resistance of a body to changes in its momentum. Because of inertia, a body at rest remains at rest, and a body in motion continues moving in a straight line and at a constant speed, unless a force is applied to it.Inertia is property of object, inability to change its position or confugaration of given body.. Mass is measurement of Inertia.. so Unit of Inertia is Kilo Gram. in SI method. If you need, unit of moment of Inertia then it is Kg m^2.
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A rocket following a parabolic path through the air suddenly explodes into many pieces. What can you say about the motion of this system of pieces?
Both before and after the explosion, the rocket's centre of mass will continue to move along its original parabolic trajectory. Regardless of whether the rocket's trajectory was parabolic or not.
A location established in relation to an object or set of objects is the centre of mass. It represents the system's average location as weighted by each component's mass. The center of mass for straightforward stiff objects with homogeneous density is found at the centroid.
The center of mass of the pieces will continue to move along the same parabolic direction that the rocket would have taken if it hadn't detonated, just as it did immediately before it did.
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this year 500 pounds of plutonium 239 (nuclear waste) was dumped in the nevada desert. the half-life of pu-239 is 24,360 years. how long will it take until there is only 1 pound left?
Time to take until there is only 1 pound left is half life,t = 218,407 years.
The amount of time needed for the reactant concentration to drop to half its initial value is known as the half-life of a reaction. A constant that is connected to the reaction's rate constant is the half-life of a first-order reaction. First-order reactions include those in radioactive decay. The reduction in radioactive nuclei per unit of time is the rate of decay, or activity, of a sample of a radioactive substance.
Since y' = ky, we can infer that
y = C[tex]e^{kt}[/tex]
Since 500 pounds are initially present
C = 500
Because the half life is 24,360 years, y equals 250 when t equals 24,360. Connecting provides
250 = 500C[tex]e^{24,360k}[/tex]
1/2 = [tex]e^{24,360k}[/tex]
ln(0.5) = 24,360k
k=[tex]\frac{ln(0.5)}{24,360\\}[/tex]=[tex]-2.95 \times 10^{-5}[/tex]
y = C[tex]500e^{2.95\times 10^{-5t} }[/tex]
1 = C[tex]500e^{2.95\times 10^{-5t} }[/tex]
t = 218,407 years.
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waves are observed passing under a dock. wave crests are 8.0 meters apart. the time for a complete wave to pass by is 4.0 seconds. the markings on the post submerged in water indicate that the water level fluctuates from a trough at 6.0 meters to a crest at 9.0 meters. what is the amplitude of the wave? 1.5 m 3.0 m 6.0 m 9.0 m
Given that the distance between the crest and the trough is 3 meters, the amplitude should be half of that, which is 1.5 meters.
What does a wave example of amplitude mean?Here are a few illustrations of amplitude:The distance between a wave's peak and the still water's surface is how large of a wave it is.The concentration of air molecules at the core of a compression and pulse of sound would determine the amplitude of the a sound wave.
What does a Class 11 wave's amplitude mean?The maximum displacement of a wave propagating medium particle from its mean location to its extreme position is the amplitude.
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A golfer uses a club to hit a 45-g golf ball resting on an elevated tee, so that the golf ball leaves the tee at a horizontal speed of 38 m/s.
a.What is the impulse on the golf ball?
b. What is the average force that the club exerts on the golf ball if they are in contact for 2.0´103 s?
c. What average force does the golf ball exert on the club during this time interval?
The impulse of the golf ball is 1.7 kg.m/s. The average force that the club exerts on the golf ball is 855 N and the average force that the golf ball exerts on the club is -855 N.
What are the two terms that best sum up a force?A vector quantity is force. Its amplitude and the way it acts are two characteristics that might be used to characterize it.
The mass of the ball m = 45 g = 45 · 10⁻³ kg
Initial velocity V = 38 m/s
Contact time t = 2 · 10⁻³ s
The impulse is calculated according to the formula:
I = m · V = 45 · 10⁻³ · 38 = 1,710 · 10⁻³ = 1.71 kg m/s
I = 1.71 kg m/s
The average force is calculated according to the formula:
F = ΔI / Δt = 1.71 / (2 · 10⁻³) = 855 N
F = ΔI / Δt = 1.71 / (2 · 10⁻³) = 855 N
F = 855 N
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a 2.0 kg block is forced against a horizontal spring of negligible mass, compressing the spring by 15 cm. when the block is released from the compressed spring, it moves 60 cm across a horizontal tabletop before coming to rest. the force constant of the spring is 200 n/m. calculate the coefficient of sliding friction between the block and the table
The block and table have a sliding friction coefficient of 0.083.
What leads to conflict?Although friction is assumed to be created by the interaction between the microscopic bumps on surfaces when they brush against each other, scientists are not entirely sure what causes it. It is challenging for the surface to slide over one another because the spikes on each surface flex and exert stress on one another.
What can lessen abrasion?The friction between both the edges can be decreased by using lubricants like oil or grease. Friction can be decreased by cleaning the surface, which makes it smooth.
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If we try to detect extraterrestrial civilization with radio telescopes, which of the following do we NOT have to worry about?
a. Channel size
b. Time to detect
c. Polarization of radio waves
d. Power source of the telescope
e. Radio frequency
f. Direction in the sky
When trying to detect extraterrestrial civilizations with radio telescopes, we do not have to worry about the power source of the telescope. Thus option D is the correct answer.
When trying to detect extraterrestrial civilizations with radio telescopes, we do not have to worry about the power source of the telescope. The power source is used to operate the telescope and its various components, but it does not affect the ability to detect radio signals from extraterrestrial civilizations.
However, we have to worry about other factors such as channel size, time to detect, the polarization of radio waves, radio frequency, and direction in the sky. The channel size of the telescope is important as it determines the range of frequencies that can be detected. The time to detect refers to how long the telescope must observe in order to detect a signal.
Radiofrequency is also important as it determines the range of frequencies that can be detected. And the direction in the sky is important as the telescope must be pointed in the right direction to detect a signal.
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a gas, while expanding under isobaric conditions, does 480 j of work. the pressure of the gas is , and its initial volume is . what is the final volume of the gas? (4.5 x 10-3 m3)
The final volume of the gas is 4.5 x 10-3 m3.
What is final volume?Final volume is the measure of the volume of a substance or object after all changes to it have taken place. It is the measure of the amount of space taken up by an object or substance at a specific point in time.
We can use the work-energy theorem to solve this problem. Work (W) is equal to the change in energy (E). Since the expansion is isobaric, the change in internal energy is zero. Therefore, W = E = PΔV, where P is the pressure and ΔV is the change in volume.
We know that W = 480 J and P = ?. To solve for ΔV, we can rearrange the equation to ΔV = W/P. Plugging in the given values, we have ΔV = 480 J / P.
We also know the initial volume (V1) of the gas, so we can calculate the final volume (V2) by adding the change in volume to the initial volume: V2 = V1 + ΔV. Plugging in the given values, we have V2 = 4.5 x 10-3 m3 + (480 J / P).
Therefore, the final volume of the gas is 4.5 x 10-3 m3.
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a 0.20 kg yo-yo attached to a 0.60 m string is swung in a circle in the horizontal plane. find the tension in the string if the yo-yo has an angular velocity of 150 revolutions per minute.
According to the query, the strain in the string would be 29.60N if the yo-yo rotated at a rate of 150 minutes per revolution.
What does physics mean by tension?Physicist tension illustration
Why is there tension? Any physical thing that is in contact with another item can apply pressures to that item. Depending on the sorts of objects in touch, we label these friction coefficient differently. We refer to the tension as tension if a rope, thread, chain, or cable is one of the things applying the force.
M= 0.20kg
r= 0.60m
Angular velocity = 150rev/min
ω= 150rev/min[2π rad/1rev][1 min/60 sec]
ω= 15.70 rad/sec
As it revolve in a circle path, the centripetal force is equal to tension in string .
T = mω2r
= (0.20)(15.70)(0.60)
= 29.60N
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what will happen if you plug in a 220v appliance into a 120v outlet? 0 / 1 point nothing will happen the appliance could get damaged the appliance will charge at a slower rate the outlet could get damaged
If you plug in a 220v appliance into a 120v outlet then whatever that would happen would depend upon the kind of load.
If one is have a passive load that is without power electronics. For example- a basic heater, then the current in the device would be reduced to the half of the actual and its power will reduce to a quarter according to the Ohm´s law. But if one is having an active load where its power is kept constant, it will consume double the amount of current in order to compensate for the reduction of voltage that has occurred. This could eventually lead to the device getting damaged.
Voltage is defined as the pressure from an electrical circuit's power source which eventually pushes charged electrons (current) through a conducting loop, and enables them to do work such as illuminating a light.
Voltage = pressure, and it is measured in volts (V).
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two point charges with 6.98x10-9 c and 6.44x10-9 c of charge are separated by a distance of 0.404 m. find the approximate electric force with which the two objects interact
The two items are located at a distance of 0.404 m, which results in an approximate electric force between them of 2.48 x 10-6 N for repelling two point charges with charges of 6.98 x 10-9 and 6.44 x 10-9 c.
How much of an electric force exists between two objects?
F= kq1 q2/r2 F= 9x10-9, 6.98x10-9, 6.44x10-9/0.404x2, and 2.48x10-6 N ( repulsive)
The electric force is the force that draws electrons and nuclei together. The results of experiments have demonstrated that the electrical force exerted on two objects is inversely proportional to their distance.The negative cube of the distance that separates two things determines the force between them.
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a spring has a spring constant k of 10.0 n/m. determine the work needed to stretch the spring from 4.0cm to 6.5cm
A spring has a spring constant;Work = 1/2 * k * (Δx)^2,
Work = 1/2 * 10.0N/m * (0.065m - 0.04m)^2,Work = 0.009825 J
What is the constant ?
The constant in mathematics is a number that has a fixed value. A constant can be a single number, such as pi or e, or it can represent a set of numbers, such as the set of prime numbers. Constants are often used in equations and formulas to represent values that do not change. For example, the equation for the area of a circle is A = πr2, where π is a constant with a value of 3.14159.
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what do you think happens to the average speed as molecular weight increases (assuming the temperature stays the same)?
Generally, as molecular weight increases, the average speed of molecules will decrease. This is because heavier molecules, due to their greater mass, require more energy to move around and so they move more slowly than lighter molecules.
What is the molecules ?
Molecules are the smallest units of matter which have the properties of a particular substance. They are made up of two or more atoms held together by chemical bonds. Molecules can exist in different shapes and sizes, depending on the number and types of atoms they are composed of. They are essential building blocks of all matter, from the smallest to the largest. Molecules can be naturally occurring or created synthetically in a laboratory. Examples of molecules include water molecules, carbon dioxide molecules, proteins, and carbohydrates.
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Infrared spectroscopy is a useful tool for scientists who want to investigate the structure of certain molecules. Which of the following best explains what can occur as the result of a molecule absorbing a photon of infrared radiation?
Energies of infrared photons are the same as the energies of chemical bonds. Molecules absorb infrared photons of characteristic wavelengths, revealing the types & strengths of different bonds in the molecules.
What is the purpose of infrared?There are several uses for infrared technology. Heat sensors, thermal imaging, and night vision gear are some of the most well-known types. Infrared light is employed in wired and wireless activities in communications and networking.
Animals can perceive infrared, but how?The human eye cannot sense infrared light because it has different range and less energy than visible light. However, several snake and scorpion species, bed bugs, vampire bats, and mosquito species can see by using parts of the infrared spectrum. Infrared energy can occasionally be "seen" by people as heat.
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A 5.0 kilogram block accerlerating at 6.p meters per second along a rough horizontal force,f, of 50. newtons. What js the magnitude in newtons if the force of friction
The acceleration due to gravity on the surface of Earth is g. Calling R the radius of Earth, at what distance from Earth's center would the acceleration due to gravity drop to g/16
At a distance of four times the radius of the earth the gravity drops to g/16.
Acceleration due to gravity means the acceleration obtained by an object due to the gravitational force. Value is found out to be 9.8m/s²
The equation for acceleration due to gravity, g = GM/R²
G is the Gravitational constant
M is the mass of earth
R is the radius of the earth.
When the acceleration due to gravity is g/16,
g/16 = GM/r², r is the distance from the earth.
Substituting the value of g,
GM/R²/16 = GM/r²
Cancelling GM on both sides
1/R² = 16/ r²
r² = 16× R²
r = √(16×R²)
= 4R
So the acceleration due to gravity falls to g/16 when the distance from the earth is four times its radius.
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a 28-gram bullet strikes and becomes stuck in a 1.35 kg block of wood placed on a horizontal surface just in front of the gun. if the coefficient of friction between the wood and the surface is .28 and the impact drives the block a distance of 8.5 m before stopping, what was the speed of the bullet?
Inside an inelastic collision, a bullet that embeds into a block transfers its momentum to a bullet-block system. Using the principle of momentum conservation, we monitor the subsystems' speeds.
In physics, what is a momentum?As momentum depends on both velocity and the direction of a body's motion, it is quantified by "mass velocity". Since motion is a vector and mass is a scalar, force and motion. Mass times speed equals momentum.
Momentum examples, please?whenever you throw a ball at a person and it hits him in the face. It shows how challenging it would be to put a halt to the situation. In the air, a baseball is swooping. There is a big truck moving. a gun of this type shot a bullet.
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a stroboscope is a light that flashes on and off at a constant rate. it can be used to illuminate a rotating object, and if the flashing rate is adjusted properly, the object can be made to appear stationary. (a) what is the shortest time between flashes of light that will make a three-bladed propeller appear stationary when it is rotating with an angular speed of 16.7 rev/s?
The shortest time between flashes of light that will make a three-bladed propeller is 0.02 sec
What is a stroboscope used for?A potent, swift-moving light source called a stroboscope is utilised for high-speed photography and the visual analysis of periodic motion. The stroboscope can be used to analyse things in rapid periodic motion by giving the appearance of paused or slowed motion.
revolution of the propeller
=> 1s/1.67 rev
T=> 0.059 s/rev
If all three blades of a three-bladed propeller are the same, the stroboscope can flash once every third revolution as follows:
T1/3 => 1/3 x 0.059
=> 0.02 sec.
What guiding principle governs the stroboscope?A device that periodically emits quick, powerful flashes of light is known as a stroboscope. When a fast-rotating object (like the cooling fan inside a computer) is illuminated by a stroboscope's flashing light, the object appears to be stationary.
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