consider that the ball travels one revolution of its path in t second. what is the speed of the ball in terms of l, r, and t?
Answers
The speed of the ball in term of l, r, t is given as,
l = r/t
Where, l is the speed of the ball, r is the distance travel by the ball and t is the time to complete one revolution.
Every day, each of us makes a trip to a different location and covers a distance along the way. But from the perspective of physics, distance is something that takes into account a variety of things.A ball is moving consistently translationally. The ball moves down the path at a constant pace and can follow a straight or round path. The speed of the ball is constant and has the same magnitude and direction for every component.
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NS Imagine an alien spaceship and a human-controlled ship moving directly toward each other. An observer on Earth measures the both of their speeds as 0.710c with respect to the Earth. What is the speed of the alien ship with respect to the human ship? That is, what is the speed of the allen ship as measured by an observer in the human ship? Express your answer as a fraction of the speed of light, c. x What is the relative velocity relationship? Be sure to use the one that applies when the speeds of both objects with respect to a third observer (Earth) are known. Be careful with signs-remember that the velocities are in opposite directions. Remember the final answer should be the ratio of the speed (magnitude of velocity) to c. VAH
Answers
The speed of the alien ship as measured by an observer in the human ship is approximately 0.944 times the speed of light (c).
In this scenario, we are considering two spaceships, one alien and one human-controlled, moving towards each other with velocities of 0.710c each, as measured by an observer on Earth. To find the relative speed of the alien ship with respect to the human ship, we need to apply the relativistic velocity addition formula, which is suitable for cases where velocities are significant fractions of the speed of light (c).
The formula is given by:
\(V_{rel}\) = (V₁ + V₂) / (1 + (V₁ * V₂) / c²)
Here, V₁ represents the speed of the alien ship, and V₂ represents the speed of the human ship. As both are moving towards each other, we take V₁ as positive (+0.710c) and V₂ as negative (-0.710c) to account for opposite directions.
Plugging the values into the formula:
\(V_{rel}\) = (+0.710c - 0.710c) / (1 - (0.710c * -0.710c) / c²)
\(V_{rel}\) = (1.420c) / (1 + 0.5041)
\(V_{rel}\) = 1.420c / 1.5041
\(V_{rel}\) ≈ 0.944c
So, the speed of the alien ship as measured by an observer in the human ship is approximately 0.944 times the speed of light (c). This is the relative velocity of the alien ship with respect to the human ship, considering their high-speed motion and taking into account the relativistic effects.
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the primary coil of a transformer has n1 5 350 turns, and the secondary coil has n2 5 2 000 turns. if the input voltage across the primary coil is dv 5 170 cos vt, where dv is in volts and t is in seconds, what rms voltage is developed across the secondary coil?
Answers
The rms voltage developed in secondary coil is 971.42 volt.
A transformer is the simplest device used to transfer electrical energy from one AC circuit to another through the process of electromagnetic induction. A transformer either increases AC voltage (step-up transformer) or decreases AC voltage (step-down transformer). Transformers, which are typically used to transmit and distribute AC power, are essentially voltage regulators. Transformers serve a variety of purposes, such as stepping up the voltage of generators to transmit power over long distances, or stepping down the voltage of traditional electrical circuits to power low-voltage devices such as doorbells and toy trains.The term RMS is an abbreviation for Root Mean Square. RMS voltage is defined as the square root of the mean square of the instantaneous value of the voltage signal. The rms value is also called the root mean square. RMS voltage can also be defined as the integral of the square of the instantaneous value during a cycle of continuously varying voltage.
\(\frac{V2}{V1}=\frac{N2}{N1}\)
V2= 2000 x 170/350=971.42 volt
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Why does precipitation
occur when warm air rises?
Answers
Answer:
the warm air rises, cools and condenses to form clouds
The maximum wavelength For photoelectric emissions in tungsten is 230 nm. What wavelength of light must be use in order for electron with maximum energy of 1.5ev to be ejection
Answers
Answer:
λ = 1.8 x 10⁻⁷ m = 180 nm
Explanation:
First we find the work function of tungsten by using the following formula:
∅ = hc/λmax
where,
∅ = work function = ?
h = Plank's Constant = 6.626 x 10⁻³⁴ J.s
c = speed of light = 3 x 10⁸ m/s
λmax = maximum wavelength for photoelectric emission = 230 nm
λmax = 2.3 x 10⁻⁷ m
Therefore,
∅ = (6.626 x 10⁻³⁴ J.s)(3 x 10⁸ m/s)/(2.3 x 10⁻⁷ m)
∅ = 8.64 x 10⁻¹⁹ J
Now we convert Kinetic Energy of electron into Joules:
K.E = (1.5 eV)(1.6 x 10⁻¹⁹ J/1 eV)
K.E = 2.4 x 10⁻¹⁹ J
Now, we use Einstein's Photoelectric Equation:
Energy of Photon = ∅ + K.E
Therefore,
Energy of Photon = 8.64 x 10⁻¹⁹ J + 2.4 x 10⁻¹⁹ J
Energy of Photon = 11.04 x 10⁻¹⁹ J
but,
Energy of Photon = hc/λ
where,
λ = wavelength of light = ?
Therefore,
11.04 x 10⁻¹⁹ J = (6.626 x 10⁻³⁴ J.s)(3 x 10⁸ m/s)/λ
λ = (6.626 x 10⁻³⁴ J.s)(3 x 10⁸ m/s)/(11.04 x 10⁻¹⁹ J)
λ = 1.8 x 10⁻⁷ m = 180 nm
The fundamental measuring unit of Electromagnetism is?
Ampere (electric current)
Volt (electric potential)
Coulomb (electric charge)
Answers
The fundamental measuring unit of electromagnetism is Ampere (electric current.Option 1 is correct.
What is electromegnetism ?The physical interplay of electric charges, magnetic moments, and the electromagnetic field is known as electromagnetism.
The electromagnetic field can be static, moving slowly, or forming waves. Electromagnetic waves are commonly referred to as light and are subject to optics laws.
The fundamental measuring unit of electromagnetism is Ampere (electric current.Option 1 is correct.
Hence option 1 is correct.
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a 57 g tennis ball is served at 45 m/s .if the ball started from rest, what impulse was applied to the ball by the racket?
Answers
2565Ns is the impulse applied to the ball by the racket when a 57 g tennis ball is served at 45 m/s velocity and the ball started from rest.
What is impulse?The integral of a force, F, across the time period it acts on is called an impulse. An ordinary mechanical quantity is the impulse. Impulse is a vector quantity because force is one as well.The general formula for impulse is J = Δp Unit of the impulse is defined as Ns (Newton-seconds).Solution:Given :
The mass of tennis ball=57g
velocity applied =45m/s
Now to find the impulse applied to the ball by the racket;
The general formula for impulse is J = Δp
⇒J = Δp ∵ (Δp=mΔv )
∴ J = mΔv
Now substituting the values
J=57*45
J=2565Ns
Hence, 2565Ns is the impulse applied to the ball by the racket when a 57 g tennis ball is served at 45 m/s velocity and the ball started from rest.
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Without using afood flask, suggest another ways would you keep food warm a till to the hospital
Answers
Another way to keep food warm till you arrive at the hospital is by putting the food in a foil and wrapping it up with a towel to retain the heat.
What is Food preservation?Food preservation is defined as the process by which a cooked food or process food is kept in such a way that microorganisms cannot affect their taste and texture.
To prevent a cooked food from getting cold, you can put the food in an aluminium foil and wrap it with a towel to prevent heat loss.
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(a) what is the characteristic time constant of a 23.2 mh inductor that has a resistance of 4.21 ω? ms (b) if it is connected to a 12.0 v battery, what is the current after 12.5 ms? a
Answers
The current through the circuit after 12.5 ms is 2.5864 A.
The characteristic time constant of a 23.2 mh inductor that has a resistance of 4.21 ω is 5.82115 ms.
If it is connected to a 12.0 v battery, the current after 12.5 ms will be 2.5864 A.
Below are the steps to get to the answer:(a) Calculate the characteristic time constant of the circuit using the formula:τ = L/RWhere τ is the time constant, L is the inductance of the inductor, and R is the resistance of the circuit.tau=23.2mH/4.21Ω=5.82115ms
Hence, the characteristic time constant of the circuit is 5.82115 ms.
(b) To calculate the current through the circuit, we need to use the formula:i = (V/R) [1 - e(-t/τ)]Where i is the current, V is the voltage of the battery, R is the resistance of the circuit, t is the time, and τ is the characteristic time constant of the circuit.i = (12/4.21) [1 - e(-12.5/5.82115)]i = 2.5864
Hence, the current through the circuit after 12.5 ms is 2.5864 A.
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What are the forces acting on the car driving to the left?
Answers
Many students of physics do not believe in centripetal ("inwards") forces. Even after completion of a thorough physics course, such students will still incorrectly believe that an object moving in a circle experiences an outward force. Perhaps the reason for adhering to this misconception stems from their experiences with riding as a passenger in automobiles and amusement park rides.
Imagine that you are a passenger in a car which is making a right-hand turn. As the car begins to take the turn to the right, you often feel as though you are sliding to the left. The car is turning to the right due to the inward force, yet you feel as though you are being forced leftward or outward. In actuality, the car is beginning its turning motion (to the right) while you continue in a straight line path. This motion can be better understood by examining the animation below.
Observe in the animation that the passenger (in blue) continues in a straight-line motion for a short period of time after the car begins to make its turn. In fact, the passenger follows a straight-line path until striking the shoulder of the driver (in red). Once striking the driver, a force is applied to the passenger to force the passenger to the right and thus complete the turn.
An inward net force is required to make a turn in a circle. This inward net force requirement is known as a centripetal force requirement. In the absence of any net force, an object in motion (such as the passenger) continues in motion in a straight line at constant speed. This is Newton's first law of motion. While the car begins to make the turn, the passenger and the seat begin to edge rightward. In a sense, the car is beginning to slide out from under the passenger. Once striking the driver, the passenger can now turn with the car and experience some circle-like motion. There is never any outward force exerted upon the passenger. The passenger is either moving straight ahead in the absence of a force or moving along a circular path in the presence of an inward-directed force.
Learning Goal: To understand that centripetal acceleration is the acceleration that causes motion in a circle. Acceleration is the time derivative of velocity. Because velocity is a vector, it can change in two ways: the length (magnitude) can change and/or the direction can change. The latter type of change has a special name, the centripetal acceleration. In this problem we consider a mass moving in a circle of radius R with angular velocity ω, r⃗ (t)=R[cos(ωt)i^+sin(ωt)j^] =Rcos(ωt)i^+Rsin(ωt)j^. The main point of the problem is to compute the acceleration using geometric arguments. (Figure 1) Part A What is the velocity of the mass at a time t? You can work this out geometrically with the help of the hints, or by differentiating the expression for r⃗ (t) given in the introduction. (Figure 2) Express this velocity in terms of R, ω, t, and the unit vectors i^ and j^. V⃗ (t) = Part Assume that the mass has been moving along its circular path for some time. You start timing its motion with a stopwatch when it crosses the positive x axis, an instant that corresponds to t=0. [Notice that when t=0, r⃗ (t=0)=Ri^. ] For the remainder of this problem, assume that the time t is measured from the moment you start timing the motion. Then the time − t refers to the moment a time t before you start your stopwatch. Part B What is the velocity of the mass at a time − t? Express this velocity in terms of R, ω, t, and the unit vectors i^ and j^. V⃗ (−t) = SubmitMy AnswersGive Up Part C What is the average acceleration of the mass during the time interval from − t to t? (Figure 3) Express this acceleration in terms of R, ω, t, and the unit vectors i^ and j^.
Answers
Part A :The position of the particle in vector form is given by\(r⃗ (t)=R[cos(ωt)i^+sin(ωt)j^]\)where R is the radius of the circle and ω is the angular velocity.The velocity of the particle is given by taking the derivative of the position vector with respect to time.
Taking derivative with respect to time on both side we get \(v⃗ (t)=d/dt R[cos(ωt)i^+sin(ωt)j^]= R[-in(ωt)ωi^+cos(ωt)ωj^]=ωR[-sin(ωt)i^+cos(ωt)j^]v⃗ (t)=ωR[-sin(ωt)i^+cos(ωt)j^]\)Thus the velocity of the mass at a time t is given by \(v⃗ (t)=ωR[-sin(ωt)i^+cos(ωt)j^]\).
Part B :
We have to find the velocity at time -t. The velocity of the particle is given by taking the derivative of the position vector with respect to time. Thus the velocity of the mass at a time -t is given by \(v⃗ (-t) = ωR[sin(ωt)i^ - cos(ωt)j^]\)
\(v⃗ (-t) = ωR[sin(ωt)i^ - cos(ωt)j^]\)Part C :
The average acceleration of the particle can be computed using the formulaa = \(Δv/Δt\)The velocity at time t is given by\(v⃗ (t) = ωR[-sin(ωt)i^+cos(ωt)j^]\)
The velocity at time -t is given by \(v⃗ (-t) = ωR[sin(ωt)i^ - cos(ωt)j^]\)
\(v⃗ (-t) = ωR[sin(ωt)i^ - cos(ωt)j^]\)The change in velocity over the interval from -t to t is therefore
\(Δv = v(t) - v(-t) = 2ωR[sin(ωt)i^ + cos(ωt)j^]\)
The time interval over which this change occurs is\(Δt = 2t\)Thus the average acceleration of the particle is given by a = \(Δv/Δt = ω^2R[sin(ωt)i^ + cos(ωt)j^]/t\)
\(a = Δv/Δt = ω^2R[sin(ωt)i^ + cos(ωt)j^]/t\)
The acceleration can be expressed in terms of R, ω, t, and the unit vectors \(i^ and j^\) as \(a = ω^2R[sin(ωt)i^ + cos(ωt)j^]/t\).
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What is free-fall acceleration toward the sun at the distance of the earth's orbit?
Answers
Answer:
The free fall acceleration toward the sun at the distance of the earth's orbit is 9.8m/s^2
A falling raisin will have
whale. (more/less)
momentum than a falling blue
Answers
Answer:less
Explanation:thats the answer
thomas young described thin film colors due to light scattered from
Answers
Thomas Young was a British scientist who described the phenomenon of thin film colors due to light scattered from a thin layer of a material, such as a soap bubble or a layer of oil on water.
This phenomenon is known as interference, where the light waves reflecting from the front and back surfaces of the thin film interfere with each other, resulting in certain wavelengths of light being reinforced and others being canceled out. This leads to the appearance of different colors depending on the thickness of the film and the angle of the incident light. Thomas Young's work on thin film interference laid the foundation for the study of optics and has important applications in industries such as electronics and coatings.
Young's explanation of thin film colors was based on the wave nature of light. He proposed that when light waves are reflected from a thin film, they interfere with each other and produce a pattern of constructive and destructive interference. The resulting pattern determines the color that is observed.
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Ocean divers:
must breathe a mixture of oxygen and helium
cannot withstand the pressure of the ocean without special equipment
may one day breathe with artificial gills
all of the above
Answers
Answer:
all of the above.Explanation:
Answer:
im not sure but i think b. cannot withstand the pressure...
if not all the above.
Explanation:
A substance that has 1500 liters and which has a density of 250 kg / m3 determine the mass of said substance
Answers
【Answer】Therefore, the mass in said substance is 375 kilograms.
\(\red{ {\hspace{50 pt}\above 1.2pt}\boldsymbol{\mathsf{Procedure}}{\hspace{50pt}\above 1.2pt}}\)
This is an exercise on fluids and their fundamental characteristics.
We start to solve, obtaining the data:
DATA:v = 1500 lt = 1.5 m³d = 250kg/m³m = ?Conversion from liters to m³
\(\boldsymbol{1500\not{l}*\dfrac{1 \ m^{3} }{1000\not{l} }=1.5 \ m^{3} }\)
To calculate mass: multiply density by volume.
\(\boldsymbol{m=d*v \ \ \to \ \ \ Formula}\)
We clear our data in the formula:
\(\boldsymbol{m=250\dfrac{kg}{\not{m^{3}}}*1.5\not{m^{3}} }\)
\(\boldsymbol{m=375 \ kg}\)
{ Pisces04 }What happens to the entropy of a closed system when a reversible process occurs within the system?a) increasesb) decreasesc) remains the samed) either remains the same or increases
Answers
When a reversible process occurs within a closed system, the entropy (c) remains the same. Option C is Correct answer.
This is because, in a reversible process, the system and its surroundings can return to their initial states without any net change in the overall entropy.
Entropy is a measure of thermal energy that does not have a tendency to be converted into mechanical effort. It is a thermodynamic variable.
The evaporation of the water during sweat reduces the body's entropy, allowing the cooling effect to occur while also releasing energy from the body. On the other hand, when water molecules change from liquid to vapour, capturing more space in the surroundings, the entropy of water increases.
The second law of thermodynamics states that a system will have a spontaneous reaction if the overall entropy of the system and its surroundings rises throughout the reaction.
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Xtreme waterparks uncovers the most over-the-top and exhilarating water rides across the world. To what country did we travel to enjoy the mountain water slide, curving through the jungle and letting out in a secluded, tree-surrounded pool?.
Answers
Answer:
Costa Rica
Explanation:
where do animalian live
Answers
Lebron is comparing flights departing from minneapolis. Which 222 ways could lebron find the flight with the fastest average speed?.
Answers
The stated statement states that the right options are to discover the lowest and highest kilometers per hour.
What is the straightforward meaning of speed?Its speed is the rate in which an object's position shifts in any direction. Speed is defined as the ratio of the distance traveled to the time required to cover that distance. Speed is a numeric number since it just has a path and no magnitude.
Methods for determining the fastest cruising velocity.
Speed = Distance / Time = kilometers per hour
Consequently, Find the speed that is least in kilometers per hour.
The highest speed in kilometers per hour.
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The complete question is-
Lebron is comparing flights departing from Minneapolis. Which 2 ways could Lebron find the flight with the fastest average speed? Choose 2 answers:
A). Find the least kilometers per hour
B). Find the greatest kilometers per hour
C). Find the least minutes per kilometers
D). Find the greatest minutes per kilometers
How do the molecules of cold water differ from the molecules of hot water?
-Answer choices
The molecules of cold water have fewer heat molecules mixed with them.
The molecules of cold water have more mass than the molecules of hot water.
The molecules of cold water are larger than the molecules of hot water.
The molecules of cold water are closer together than the molecules of hot water.
:)
Answers
Answer:
The molecules of cold water move slower than the molecules of hot water. The molecules of cold water move at the same speed as the molecules of hot water.
The molecules of cold water are closer together than the molecules of hot water. Heat energy make the molecules more mobile and make them far apart.
What is intermolecular forces?Intermolecular force is the force which binds the molecules of a compound or atoms in a molecules. There are different types of intermolecular forces such as ionic bonding, covalent bonding, hydrogen bond etc.
In solid state the intermolecular force between molecules is high and they are closely packed. In liquid phase, molecules have small space to move and ln gas phase, molecules are far apart with very less intermolecular force.
When water is heated, the heat energy weaken the intermolecular force between the molecules. Hence, in cold water, molecules are closer compared to hot water.
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The energy of a given wave in the electromagnetic spectrum is 2.64 × 10-21 joules, and the value of Planck’s constant is 6.6 × 10-34 joule·seconds. What is the value of the frequency of the wave?
Answers
Answer:
4.00 × 1012 hertz
Explanation:
When tension is applied to an aluminum rod (Y = 70 x 10^9 Pa) of length 1 m, it stretches by Δ.
1. If the same tension is applied to another aluminum rod with the same cross-sectional area, but of length 2 m, by how much will it stretch?
a) less than Δ
b) Δ
c) more than Δ
2. Now, consider two aluminum rods of length 1 m, one twice as thick as the other. If a compressive force F is applied to both rods, their lengths are reduced by Δthick rod
and Δthin rod, respectively.
The ratio (Δthick rod)/(Δthin rod) is
a) (Δthick rod)/(Δthin rod) < 1
b) (Δthick rod)/(Δthin rod) = 1
c) (Δthick rod)/(Δthin rod) > 1
Answers
The answers for the given questions about topic tension:
1. c.) More than ΔL
2. b.) <1
What is aluminium rod?Light and strong, an aluminium rod is highly resistant to corrosion and is ideal for both indoor as well as outdoor use as it can withstand a variety of environmental conditions. Our aluminium rods, which are also referred to as aluminium round bars, are provided in the 6000 series, which has the greatest commercial versatility.
The mechanical sectors can use aluminium alloy wire rods for things like bolts, nuts, nails, needles, rivets, clips, and staples.
1. stress = Y strain
(F / A) = Y (deltaL / L)
deltaL / L = constant (for this problem)
delta(L) / 1 = delta(L') / 2
delta(L') = 2 delta(L)
2. deltaL A = constant
L_thick (2A) = Lthin (A)
L_thick / L_thing = 1/2 < 1
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A 0.080-kg egg test dummy is fitted with a helmet and attached to a swing. This egg test dummy is pulled back and released, allowing it to collide with a cement block. The impulse on the egg test dummy is - 0.39N.s is over an interval of 0.050 s. What is the magnitude of the force on the egg test dummy during this time interval?
Answers
Answer:
7.8 N
Explanation:
Applying,
I = Ft................. Eqaution 1
Where I = Impulse on the egg test dummy, F = Force on the egg test dummy during the time interval, t = time interval
make F the subject of the equation
F = I/t.................. Equation 2
From the question,
Given: T = -0.39 N.s, t = 0.050 s
Substitute these vales into equation 2
F = -0.39/0.050
F = -7.8 N
Hence the force that act on the egg test dummy is 7.8 N
Which resources is both renewable and inexpensive?
a. sunlight
b. cold
c. gold
d. mineral
Answers
Among the given following options, the resource which is both renewable and inexpensive is sunlight.
Inexpensive means that which does not cost a lot of money and is cheaply available for all of us.
A renewable energy resource is obtained from a natural source that are constantly renew themselves. Most of the renewable energy resources are sustainable. It is frequently called clean energy. Some major types of renewable energies are solar energy, wind energy, geothermal energy, hydropower, bioenergy, etc.
Gold and minerals are not inexpensive in nature as they take years and years for their formation.
Cold is not a renewable source as it is not always available in all the seasons in the world.
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In 2-3 complete sentences, explain the relationship between speed, frequency, and wavelength.
i really need help on this question :(
Answers
which one of the following statements concerning permanent magnets is false?
Answers
The statement "When a permanent magnet is cut in half, one piece will be a north pole and one piece will be a south pole" is False.
When a permanent magnet is cut in half, it does not result in separating the magnet into distinct north and south poles. Instead, each resulting piece will still have its own north and south poles. This phenomenon is known as magnetic domain alignment. The domains within a magnet are regions where the magnetic moments of atoms align in the same direction, creating a magnetic field. Cutting a magnet disrupts the alignment of these domains, but it doesn't create isolated north and south poles on separate pieces.
Regardless of how a permanent magnet is divided, each resulting piece will have its own north and south poles. The magnetic field lines will still flow from the north pole to the south pole within each piece. Therefore, the statement "When a permanent magnet is cut in half, one piece will be a north pole and one piece will be a south pole" is false.
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The complete question is
which of the following statements concerning permanent magnets is false?- the direction of a magnetic field is indicated by the north pole of a compass-when a permanent is cut in half, one piece will be a north pole and one piece will be a south pole-the north pole of a permanent magnet is attracted to a south pole-magnetic field line outside a permanent magnet originate from the north pole and end on the south pole-all permanent magnets are surrounded by the magnetic field
A 0.225 kg block of iron at -28.7 °C is put in a cup of 0.150 kg of water at 18.9 °C. What is their equilibrium temperature?
Answers
Answer:
12.3°C should be the correct answer
Answer:
12.3
Explanation:
ON WHAT FACTORS DOES THE LOUDNESS OF SOUND DEPENDS?
Answers
Answer: 1.) The intensity of the sound wave which reaches the listener’s ear.
2.) The square of the amplitude of the sound wave.
3.) The mass of air which can be set into vibration.
Explanation:
At the mirror surface, the light rays that you see are on the ______ of/as the light rays that your friend sees.
Answers
Given what we know, the light rays that you see on the surface of the mirror are at the same angle as the light rays that your friend sees.
Why does this happen?This has to do with the way in which a mirror affects the light that hits it. A mirror will reflect light, but will do so at the same angle that the light reaches it. This means that if the light reaches the mirror at a 40-degree angle, it will be reflected in the opposite direction at a 40-degree angle.
Therefore, we can confirm that the light rays that you see on the surface of the mirror are at the same angle as the light rays that your friend sees.
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Un globo sonda de 155 L de volumen a 1 atm se deja subir a una altura de 6 Km, donde la presión es de 0,8 amt. Suponiendo que la temperatura permanece constante, ¿Cuál es el volumen final del globo?
Answers
Answer:
El volumen final del globo es 193.75 L.
Explanation:
La ley de Boyle establece que “El volumen ocupado por una determinada masa gaseosa a temperatura constante, es inversamente proporcional a la presión”
La ley de Boyle se expresa matemáticamente como: P*V=k donde k es una constante.
En esta ley entonces se relacionan dos variables: presión y volumen, por lo que se asume que la temperatura del gas y el número de moléculas del gas son contantes.
Ahora es posible suponer que tienes un cierto volumen de gas V1 que se encuentra a una presión P1 al comienzo del experimento. Si varias el volumen de gas hasta un nuevo valor V2, entonces la presión cambiará a P2, y se cumplirá:
P1*V1=P2*V2
En este caso:
P1= 1 atmV1= 155 LP2= 0.8 atmV2= ?Reemplazando:
1 atm* 155 L=0.8 atm*V2
y resolviendo se obtiene:
\(V2=\frac{1 atm*155 L}{0.8 atm}\)
V2= 193.75 L
El volumen final del globo es 193.75 L.