an electron moves with velocity v in a direction opposite to the direction of the current in the neighboring long wire. what is the direction of the magnetic force acting on the electron?

Her acceleration when her speed is 30.0m/s is 10m/sec².

Calculation:-

mg = bv

I am also not quite sure if I should use 9.8 m/s2 or if it is ok to round and use 10m/s2 for physics.

Given: m = 80 kg, vt = 50 m/s.

(a) What is the acceleration of the skydiver, when her speed is 30 m/s?

(b) What is the drag force on the diver when her speed is 50 m/s?

(c) What is the drag force on the diver when her speed is 30 m/s?

(a) Using we can find DρA.  DρA = 2mg/vt2 = 0.6272 kg/m.

Therefore a = dv/dt = 9.8 m/s2 - (0.6272/(160 m))v2.

When v = 30 m/s, a = 6.272 m/s2.

(b).When v = vt = 50 m/s, the drag force is equal in magnitude to mg = 784 N.

(c.) When v = 30 m/s, the total force is equal in magnitude to

ma = (80 kg)(6.272 m/s2) = 502 N.  The magnitude of the drag force is mg - ma = 282 N.

After a maximum velocity, the acceleration stops due to the high drag force. and in most of the problems, g is taken to be 10m/sec².

The drag equation states that the drag force D is equal to the drag coefficient Cd density r half velocity V squared reference area A. For a given air condition object shape and tilt, we need to determine the value of Cd to determine the drag force.

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One type of rock can become another rock type through a number of procedures. Crystallization, erosion and sedimentation, and metamorphism are the main components of the rock cycle.

The changes between the three primary rock types are shown by a notion known as a "rock cycle" (metamorphic, igneous and sedimentary). The many types of rocks that make up the Earth's crust are created and altered via a series of processes.

The igneous, metamorphic, and sedimentary rock types all go through a geological process known as the rock cycle. Through erosion into sediment and cementing, or heating and pressure, or both, the three kinds of rock are changed in this process. Rocks can change from igneous to sedimentary.

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Gravitational Potential Energy is the type of energy the ball has at the top of the hill.

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The proton's velocity forms an incidence of 139* together with field at a site where it has an amplitude of 0.00635 T.

The ratio below 1 translates reached to the time needed to travel that distance is known as speed. Since speed just has a constituent and no magnitude, it is a proportionality constant.

By multiplying the distance covered by the time needed to get there, speed is computed. To calculate the passing time, multiply the kilometers by the speed. To calculate the distance, multiply the movement by the time. These equations might be abbreviated as s=d/t.

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The dimensions of the rectangle are:

l = 50 m

b = [tex]100/\pi[/tex] m

The perimeter is the length of the outline of a shape. To find the perimeter of a rectangle or square you have to add the lengths of all the four sides.

The perimeter of a rectangle,denoted by P is given by the formula, P=2l+2b, where l is the length and b is the breadth of the rectangle.

As per the question:

Perimeter of the room is given as P = 200 m

The region is rectangular having a semicircle at each end.

Now,

Let 'l' be the length of the rectangle, 'b' be its breadth and 'r' be the radius of the semi-circle at each end.

Then, Area of the given rectangle, A = lb

Perimeter of the room, P is =[tex]\pi r+l+\pi r+l=2\pi r+2l=\pi b+2l[/tex]

Therefore,  [tex]\pi b+2l=200[/tex]

[tex]b=(200-2l)/\pi[/tex]

Now,

Area, A = [tex]l(200-2l)/\pi=(200l-2l^{2} )/\pi[/tex]

Now, differentiate A w.r.t l:

Again differentiating w.r.t 'l', we get:

[tex]d^{2} A/dl^{2} =-4l/\pi[/tex]< 0

Thus we get maximum are when [tex]dA/dl=0[/tex]

Therefore,

[tex](200-4l)/\pi=0[/tex]

l = 50 m

Now, from

[tex]\pi b+2l=200[/tex]

[tex]\pi b=200-2*50[/tex]

[tex]b=100/\pi[/tex]

[tex]r=b/2=50/\pi[/tex]

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The box's launch speed across the floor is 5.2 m/s. The result is obtained by using the law of conservation of energy.

The law of conservation of energy states that "The total energy is neither increased nor decreased in any process. Energy can be transformed from one form to another, and transferred from one object to another, but the total amount remains constant."

E initial = E final

We have a horizontal spring with:

In that case, we know that there is elastic potential energy and force of kinetic friction. The total work done would be:

W = 1/2 k(Δx)² - Ff.Δx

At the final condition, there is only the kinetic energy.

E final = 1/2 mv²

Using the law of conservation of energy, we get the speed:

E initial = E final

W = E final

1/2 k(Δx)² - Ff.Δx = 1/2 mv²

1/2 k(Δx)² - μmg.Δx = 1/2 mv²

1/2 (210)(0.2)² - 0.23(0.3)(9.8)(0.2) = 1/2 (0.3)v²

4.2 - 0.135 = 0.15v²

4.2 - 0.135 = 0.15v²

4.065 = 0.15v²

v² = 27.1

v = √27.1

v = 5.2 m/s

Hence, the box's launch speed is 5.2 m/s.

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The correct order for the stages that occurred during the formation of our solar system from left to right are large cloud of gas and dust > contraction of solar nebula > condensation of solid particles > accretion of planetesimals > clearing the solar nebula.

When a cloud of gas and dust collapsed, it formed a solar nebula which is a swirling disk of material, which is made up of hydrogen and helium. It starts collapsing under its own gravity and compresses in the centre. Then the solid particles are gas condensed into tiny dust grains. These dust grains are stuck to each other forming larger particles. This forms the accretion of planetesimals. These large particles grow and accumulate creating larger planetesimals, after a billion years of clearing the nebula, planets are formed.

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It is true that electronic circuitry in an ultrasonic receiver measures the transit time and calculates the distance from the receiver to the surface of material.

Ultrasonic sensors works by sending out a sound wave at frequency above the human hearing range. Transducer of the sensor acts as microphone to receive and send the ultrasonic sound. Ultrasonic sensors use a single transducer to send a pulse and to receive the echo.

Ultrasonic receivers and transmitters detect and transmit high frequency sound waves, respectively and are characterized by frequency, rated voltage, and beam angle.

Ultrasonic transducers and ultrasonic sensors are devices that generate or sense ultrasound energy and can be divided into three: transmitters, receivers and transceivers.

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Objects, farthest to the closest will be Pluto, Saturn, Jupiter, Mars, Earth, and Mercury.

Our solar system consists of our megastar, the solar, and the whole thing sure to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as Pluto; dozens of moons; and thousands and thousands of asteroids, comets, and meteoroids. past our personal solar system, we have discovered thousands of planetary systems orbiting other stars inside the Milky manner.

The planets orbit the solar, roughly within the same plane. The solar system moves through the galaxy with approximately a 60° perspective between the galactic plane and the planetary orbital aircraft. The solar seems to transport up-and-down and in and out with respect to the rest of the galaxy because it revolves across the Milky Way.

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A 0.0035 M aqueous solution of a certain substance has a pH of 2.46. The compound is a strong acid.

The pH of water indicates how acidic or basic it is. The scale runs from 0 to 14, with 7 being neutral. pHs less than 7 indicate acidity, while pHs greater than 7 imply baseness. The pH of water is a measure of the relative number of free hydrogen and hydroxyl ions. Water with a higher concentration of free hydrogen ions is acidic, whereas water with a higher concentration of free hydroxyl ions is basic. Because chemicals in water can influence pH, pH is a significant indicator of chemically changing water. pH is expressed in "logarithmic units." Each value reflects a 10-fold increase or decrease in the acidity/basicity of the water. Water with a pH of 5 is ten times as acidic as water with a pH of 6.

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2.14 m/s² is the maximum upward acceleration experienced by the crew member. 3.53 m/s² is the maximum downward acceleration experienced by the crew member.

To calculate the maximum upward acceleration experienced use this formula

[tex]a = \left(\frac{W_{2} - W_{1}}{W_{1}} \right ) g[/tex]

where,

W₁ = Scale reading in calm water

W₂ = Maximum reading in the storm

g = acceleration due to the gravity

Now put the values in above formula we get the acceleration as

[tex]a = \left(\frac{W_{2} - W_{1}}{W_{1}} \right ) g[/tex]

  [tex]= \left(\frac{920\ lb - 755\ lb}{755\ lb} \right ) (9.8\ m/s^2)[/tex]

  [tex]= \frac{165\ lb}{755\ lb} \times (9.8\ m/s^2)[/tex]

  = 2.14  m/s²

To calculate the minimum downward acceleration experienced use this formula

[tex]a = \left(\frac{W_{1} - W_{3}}{W_{3}} \right ) g[/tex]

where,

W₁ = Scale reading in calm water

W₃ = Minimum reading in the storm

g = acceleration due to the gravity

Now put the values in above formula we get the acceleration as

[tex]a = \left(\frac{W_{1} - W_{3}}{W_{3}} \right ) g[/tex]

  [tex]= \left(\frac{755\ lb - 555\ lb}{555\ lb} \right ) (9.8\ m/s^2)[/tex]

  [tex]= \frac{200\ lb}{555\ lb} \times (9.8\ m/s^2)[/tex]

  = 3.53  m/s²

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Limited use of combustible materials is permitted in Type I construction.

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a particle moves along the x axis. it is initially at the position 0.340 m.the position of the particle after this time is 2.52 metres towards negative x direction.

Displacement (symbolized d or s ), also called length or distance, is a one-dimensional quantity representing the separation between two defined points. The standard unit of displacement in the International System of Units ( SI ) is the meter

Displacement is the change in position by a body. It's defined as shortest distance between initial and final position of the body. It's a vector quantity. Hence, it has both magnitude and direction. To understand the magnitude and direction of displacement, consider a body moving from position A to position B.

s=ut+1/2at².

on solving the eqn we get displacement as -2.52 metres

which means the body is 2.52 metre towards negative x.

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This statement about distance is proved.

What is distace?

It is length of space between two points.

Okay so the first three parts of this problem is more mathematics and physics. Um So part A were given Ds equals R. D. Data. We're required to find S. So we just integrate both sides then as equals integration of R. D. Data. Our data is given. So the upon integration over our data is simply R zero santa plus one half beta zeta squared for part B. We'll fix that S equals V. T. Um And using as equals dis above equation we combine these two. We see this is Justin equation for data so we can suffer it to get to roots once positive. The other negative of course which is a positive one because it has the correct physical meaning a negative data would mean that uh the direction of rotation is in the opposite direction.

standard uh standard unit is zero point 247 times turn to the negative six nature radio. And we're also given the time 74 minutes or equivalently 4440 seconds. So plugging all this. So plugging data mm hmm and R zero into the expression of um data. So we plug in better Data. V is also given. So everything is known. We can safely find data to be um 1.337 Times 10-5 brilliant. Or in terms of revolutions is 2.13 times 10 to 4 revolution. Okay. In the last part of the problem, we simply well plugging again the numbers for beta, tr zero V to the previous expressions for omega and alpha. You can enjoy the using mathematical or even by hand or maybe he looks like this shape while um the alpha t looks more like this.

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The force exerted by the 25 kg gymnast after a spectacular somersault is 2940 N.

Given,

Mass of the gymnast, m = 25 kg

The deceleration experienced by the gymnast, a = 9×g (acceleration due to gravity)

Now, according to Newtons second law of motion, the net force on the gymnast will be:

[tex]F_{net}[/tex] = F - W = ma

Where F is the force on the gymnast, W is the weight and a is the acceleration experienced.

So, we can also rewrite the above equation as

F = ma +W

= ma + mg

= m(a + g)

= 30 kg( 9×9.8 + 9.8)

= 30 (88.2+9.8)

= 30×98

=2940 N

Hence, the force exerted by the gymnast is 2940 N.

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The parallels between hydroelectricity and solar energy are rather striking. Both employ 100% renewable sources to generate power with zero carbon emissions when the necessary machinery is built and installed.

A considerable volume of water is used in hydropower, which runs through pipes into a power station. Gravity forces high-pressure water through pipelines or canals, causing the turbine to revolve and create energy. Wind power works by spinning the turbine blades, which spin the magnet.

Both types of solar panels, solar photovoltaic (PV) and solar thermal, work on the same concept. They take raw solar energy and convert it into useable energy.

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The strength of magnetic field is 0.18T.

The magnetic influence on moving electric charge, electric current and magnetic materials is described by magnetic field.

Given that, potential difference = 0.09 V

Length = 10 cm = 10/100 m = 0.1 m

Velocity = 5 m/s

We know the relation, Potential difference = B*l*v

where, B is the magnetic field strength

l is the length

v is the velocity

Potential difference = B*l*v

0.09 = B* 0.1* 5

B = 0.09/0.5 = 0.18 T

Thus, the strength of magnetic field is 0.18 T.

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Consequently, if the pipe is extended by two times its original length, the gauge pressure would be 2.234 ×10⁴ Pa.

Gauge pressure is the measurement of pressure in respect to the surrounding atmosphere. With one side of the textile exposed to the took shape that has to be measured the other accessible to the outside air density, a diaphragm sensor is able to measure gauge pressure.

By using the continuity equation

A ₁V₁ = A₂V₂

When the area is doubled from what it was originally,

A ₁V₁ = 2A₁V₂

V₂ =V₁/2

By using Bernoulli's equation

P₁ + 1/2 ρV₁² = P₂ + 1/2 ρV₂²

P₂ =  2×10⁴ + 1/2 ×1000×(2.5² -1.25²)

   = 2×10⁴ + 2343.75

   =22343.75 Pa

   =2.234 ×10⁴ Pa

Consequently, if the pipe is extended by two times its original length, the gauge pressure would be 2.234 ×10⁴ Pa.

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The object can move as farther as 0.2m.

Using the Sine Equation,

= x(t) = Asin(ωt)

=Here, t=0, x=0,

Given that,

Distance = x(t) = 0.60 = A sin(ωt)

Velocity = v(t) = 2.20 m/s = Aωcos(ωt)

Acceleration = a(t) = 8.40 m/s² = -Aω²sin(ωt)

Using wave equation,

= x(t) / a(t) = A sin(ωt) / -Aω²sin(ωt)

= ω² = 14 rad²/s²

= ω = 3.74 rad/s

The amplitude of the motion =

=  x(t) / v(t) = A sin(ωt) / Aωcos(ωt)

= A = 0.2 m

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Fusion of helium nuclei to form carbon and oxygen in the core of a star after the start of helium nuclear reactions in its core compared.

The positions of the stars in relation to one another are largely constant. Orion and Taurus are constantly converging. Draco is always near Ursa Minor. When we look at the sky, the stars are a never-ending backdrop painting that barely move in relation to one another.

There are some minute movements as we orbit the sun throughout the year. Stars closer to us move more left and right than stars farther away. It makes sense, even if it only has a small impact. If you keep your eyes fixed out into the distance as you walk down the street, you'll notice that objects farther away move less in relation to you than ones closer to you.

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Angular momentum of a 0.225kg ball rotating on the end of a thin string in a circle of radius 1.50 m at an angular speed of 10.5 rad/s is 5.315 kg-m²/sec

Angular momentum is defined as the quantity of rotation of a body, which is the product of its moment of inertia and its angular velocity.

It is expressed as L = I ω for rotating body.

where, L = angular momentum, I = moment of inertia, ω = angular speed

L = ?, I =?, ω = 10.5

Moment of inertia for the string-mass system is I = mr²

I=?, m= 0.225 , r=1.50

I = 0.225(1.50)²

So, I = 0.506 kg-m²

since, L = I ω

substituting the values I= 0.506, ω= 10.5

L = 0.506 × 10.5

Therefore, L= 5.315 kg-m²/sec

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The forward acceleration of the bicycle will be 1.52 m/s²

Given parameters:

Force  = 125N

Mass combined = 82kg

Acceleration of the bicycle  = ?

From Newton second law of motion suggests that:

Force = mass x acceleration

 Acceleration =  force/mass = 125/82 = 1.52 m/s²

What is acceleration?

In mechanics, acceleration is the rate of change of an object's velocity with respect to time. Acceleration is a vector quantity (as long as it has magnitude and direction). The direction of an object's acceleration is given by the direction of the net force acting on that object. As described in Newton's second law , the magnitude of an object's acceleration is the combined effect of two sources.

The mass of this object is inversely proportional to the mass of the object, depending on the material from which it is made.

Therefore, The forward acceleration of the bicycle will be 1.52 m/s².

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If the second piece is removed from the first and placed in the water, then the water level remains unchanged.

The water level is the water level reached in the container.

Initially, the weight of the pieces of wood was balanced by the buoyancy provided by the water, which depended on the volume of the first piece of wood that was inside the water (which was equal to the volume of water displaced).

Now, when the other piece was placed in the water, then again the weight of both blocks individually (which does not change) would be balanced by the lift of the total volume (coming from the contribution from both blocks), which would be the same. as before.

The water level would thus remain unchanged.

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Work done is given by

dw=Pdv, w=∫₁²(NkT/V-Nb)dv

The amount of work is 5708.00923 J.

border that is erroneous Frequently, the edges are jagged, serrated, or blurry in outline. It's possible for the pigment to penetrate the nearby skin. unbalanced color: There could be various tones of tan, brown, and black. There may also be white, black, red, pink, and blue patches.

Using traps or bait with in spring or fall will increase your chances of successfully eliminating moles from your yard. The primary runway, or active runway, should be used for both goods. Usually, these are the vertical tunnels in your grass or the ones that round the outside of your property.

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(a) To move the crate, you need to exert 7150 J of energy.

(b) The Vertical Movement of the Crate Will Take 6000 J of Work.

A frictional force is one that tends to oppose the motion of two bodies in contact.

The crate must be moved using both effort against resistance and effort across a distance of 5.0 meters.

Wr = Wf plus Wd.

Where Wr = work needed to move the crate, Wf = work done to overcome friction, and Wd = work needed to move the crate 5.0 meters.

Given are the following values: Wf = friction force distance = 2305 = 1150 J and Wd = force distance = 12005.0 = 6000 J.

Wr = 6000 + 1150 Wr = 7150 J when these values are substituted into equation 1.

The amount of effort needed to move the crate is therefore 7150 J.

(b) The amount of labor necessary to lift the crate vertically: mgh or

Vertically moving the crate requires the following amount of work: Wh. Equation 2 h = vertical height, W = weight of the block

Provided:W = 1200 N, h = 5.0 m

Equation 2 can be solved by substituting these numbers as follows: Vertical movement of the crate: work required = 12005

Moving the box upward will require 6000 J of work.  

The complete question is,

On the ground is a crate weighing 1200 N. How much effort is needed to move it (a) 5.0 m along the floor while battling a 230 N friction force; and (b) 5.0 m vertically?

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Two identical daughter cells are produced during mitosis, and both of these cells have the same number of chromosomes as their parent cell. meiosis results in the production of four different daughter cells.

As a result, mitosisproduces four haploid daughter cells, each of which has a unique genetic makeup and half the DNA of the parent cell (Figure below). The parent cell of a human cell contains 46 chromosomes (23 pairs), hence the meiotic cells created have 23 chromosomes. They will develop into gametes. At this time, nuclear division starts, dividing the parent cell in half to create two daughter cells. Each daughter cell will contain 23 chromosomes, or half of the initial 46 chromosomes. Two sister chromatids make up each chromosome. The sister chromatids of each chromosome then separate during mitosis, resulting in one chromatid being received by each daughter cell from each chromosome. Two daughter cells with the same genetic makeup as the original cell are produced as a result of mitosis, and they all have two N chromosomes.

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The frequency of the wave be the wavelength 5m is 6 × 10⁷ Hz.

The frequency of a wave is given by the speed of light divided by the wavelength of the wave.

In this case the wavelength of the wave is 5m.

And, as we know the speed of light is 3 × 10⁸ m/s.

So we can write the above statement in the formula as,

V = c/λ

Where,

V is frequency,  

c is speed of light and λ is the wavelength.

Putting values,

V = 3 × 10⁸/5

V = 6 × 10⁷ Hz.

So, the frequency of this wave is 6 × 10⁷ Hz.

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If the cat has a mass of 2.9 kg, 1.8m far to the right of sawhorse B can it walk before the plank.

plank will tip when the weight of the cat about B is greater than the torque by the weight of the plank.

mg[tex]d_{2}[/tex] = mg[tex]d_{1}[/tex]

Rearrange for [tex]d_{2}\\[/tex].

[tex]d_{2}[/tex] = [tex]\frac{Mgd_{1}}{mg}[/tex]

[tex]d_{2}[/tex] = [tex]\frac{Md_{1}}{m}[/tex]

   = [tex]\frac{(6.00kg)(0.85)}{2.9kg}[/tex] = [tex]1.758m[/tex]

[tex]d_{2}[/tex] ≈ 1.8m

Mass is the amount of matter in a bodily frame. it's also a measure of the body's inertia, the resistance to acceleration (alternate of speed) while a net force is carried out. An item's mass additionally determines the electricity of its gravitational enchantment to different bodies.

In physics, mass is not similar to weight, even though mass is regularly decided by way of measuring the object's weight with the usage of a spring scale, instead of a stability scale evaluating it immediately with regarded masses.

An object on the Moon could weigh much less than it does in the world because of the decreased gravity, but it would nevertheless have the same mass. that is because weight is a force, at the same time as mass is the belongings that (alongside gravity) determine the electricity of this pressure.

The worldwide gadget of units (SI) unit of mass is the kilogram (kg). The kilogram is 1000 grams (g) and turned into first described in 1795 because of the mass of 1 cubic decimetre of water on the melting factor of ice. however, because the precise size of a cubic decimetre of water at the required temperature and strain changed into tough, in 1889 the kilogram was redefined because the mass of a metallic object

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Complete Question:

A cat walks along a plank with a mass of M= 6.00 kg. The plank is supported by two sawhorses. The center of mass of the plank is a distance d1= 0.850 m to the left of sawhorse B. When the cat is a distance d2= 1.11 m to the right of sawhorse B, the plank just begins to tip.

If the cat has a mass of 2.9 kg, how far to the right of sawhorse B can it walk before the plank begins to tip?

The correct answer is 0.6 x 10⁶.

Wavelength is the distance between the start of the wave and the end of the wave which is also the start of the next wave.

This wavelength describes how long the wave is.

Given,

Frequency = 500 Hz

Wavelength = λ = ?

c = speed of light = 3 x 10⁸

To find wavelength, we apply a formula,

Wavelength = speed of light / frequency

λ = 3 x 10⁸ / 5 x 10²

λ = 0.6 x 10⁶ m

Wavelength = 6 x 10⁵ m

Therefore, the wavelength of a 500 Hz is 6 x 10⁵ m.

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According to kinetic molecular theory, there is no attractive and repulsive forces between the gas molecules.

The kinetic molecular theory is based on the following postulates:

So, correct option is 1 which states attractive or repulsive force between the gas molecules resulting in collisions that involve a slight lose of energy.

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