x = yz
How do you solve for z?

Answer:

Explanation:

ave speed is always (frequency) x (wavelength)

Speed  =  (450 /sec) x (0.52 m)

=      234 m/sec .

The Sellmeier equation you provided is incomplete. It appears to be missing some coefficients or parameters required to calculate the refractive index (n) of fused silica.

The Sellmeier equation is a mathematical model that relates the refractive index of a material to the wavelength of light.

Typically, the Sellmeier equation for fused silica is given as follows:

n²(λ) = 1 + (B₁λ²) / (λ² - C₁) + (B₂λ²) / (λ² - C₂) + (B₃λ²) / (λ² - C₃)

In this equation, B₁, B₂, B₃, C₁, C₂, and C₃ are the coefficients specific to the material, and λ represents the wavelength of light in vacuum. By plugging in the appropriate coefficients, you can calculate the refractive index for a given wavelength.

Since the specific coefficients for fused silica are missing in the Sellmeier equation you provided, I am unable to give you the main answer or provide further explanation. If you could provide the correct and complete Sellmeier equation or any missing coefficients, I would be happy to assist you further.

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The particles emitted by the unknown radioactive substance are negatively charged based on their observed bending to the left in a magnetic field.

Based on the information provided, we can determine that the particles emitted by the unknown radioactive substance are negatively charged.

When charged particles move through a magnetic field, they experience a force known as the Lorentz force, which acts perpendicular to both the velocity of the particle and the magnetic field. The direction of the force can be determined using the right-hand rule: if the thumb of the right hand points in the direction of the velocity of the particle and the fingers point in the direction of the magnetic field, the force will be perpendicular to both and will be directed either upwards or downwards.

Since the particles bend to the left when observed along their direction of motion, we can conclude that the force acting on them is directed towards the left. According to the right-hand rule, for a negatively charged particle moving in a magnetic field, the force is directed opposite to the velocity of the particle. Therefore, the particles must be negatively charged.

The particles emitted by the unknown radioactive substance are negatively charged based on their observed bending to the left in a magnetic field.

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Here's a two-hour practice session plan for tennis:

Warm-up (15 minutes):

Jogging: Start with a light jog around the court to increase heart rate and warm up the muscles.

Dynamic Stretches: Perform dynamic stretches such as arm circles, leg swings, high knees, and lunges to improve flexibility and range of motion.

Mini Tennis: Play a short game of mini tennis (half-court) with a partner to warm up hand-eye coordination and footwork.

Skills and Technique (45 minutes):

Forehand and Backhand Groundstrokes: Practice proper grip, footwork, and stroke technique for forehand and backhand shots. Focus on generating power and accuracy.

Volleys and Overheads: Work on volleying techniques at the net and overhead shots. Practice the correct hand positioning and timing for these shots.

Serve Practice: Spend time working on the serve technique, focusing on the toss, racquet motion, and follow-through. Practice different types of serves (flat, slice, kick) and aim for consistency and accuracy.

Strategy and Game Situations (30 minutes):

Singles Tactics: Discuss and practice various singles strategies such as serving patterns, approaching the net, playing defensively, and exploiting opponents' weaknesses.

Doubles Tactics: Cover doubles strategies like communication, positioning, serving and returning as a team, and effective net play. Practice doubles-specific drills and scenarios.

Match Play and Conditioning (30 minutes):

Point Play: Play practice points or mini sets with a partner or group, focusing on implementing the strategies and techniques learned earlier.

Conditioning Exercises: Incorporate fitness drills such as shuttle runs, agility ladder drills, or interval sprints to improve stamina and quickness on the court.

Cool-down and Stretching (15 minutes):

Gentle Jog or Walk: Cool down with a light jog or walk around the court to gradually lower your heart rate.

Static Stretches: Perform static stretches targeting major muscle groups to improve flexibility and aid in recovery.

Given

Time taken is t=8 s.

The initial speed is u=7 m/s

The final speed is v=9 m/s.

To find

The acceleration

Explanation

We know the acceleration is the ratio of the difference in the speed to the time taken.

Thus,

Conclusion

The acceleration is

Answer:

41.23

Explanation:

A given convex lens has a focal length that varies slightly with the wavelength of the light passing through it. when the a lens is used as the objective of a telescope, this results in chromatic aberration.

Chromatic aberration is a phenomenon in which light rays passing through a focus of lens at different points, depending on their wavelength. It is a failure of a lens to focus all colors to the same point. It is also called chromatic distortion and spherochromatism. The focal length of the lens varies directly with the wavelength of the light so focal length increases with wavelength but decreases with refractive index as wavelength is inversely related to it. This is the principal cause of chromatic aberration phenomena.

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Yes, copper is a good conductor of heat.

Copper is a good conductor of heat along with silver, aluminum etc.  What makes copper a good conductor of heat is that it has free electrons moving inside it. The electrons can move freely through it which makes transfer of heat and its dissipation faster. The free electrons makes the conduction of heat and electricity possible. These electrons are called conduction electrons.

That's why copper is used in many cooking utensils, fuses and as a heat sink in electrical appliances. It is a good conductor of electricity also.

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Answer:

Q=mc∆tita.

490J= m× 0.5J/Kg/C × (18-0°C)

490J= m × 9J/kg

490J

9J/Kg = m.

m= 54.4Kg

Compton scattering is a phenomenon in which X-rays interact with electrons, resulting in a change in their wavelength. The change in wavelength depends on the scattering angle and can be calculated using the Compton wavelength shift formula.

For each given scattering angle, we can substitute the values into the formula and evaluate the change in wavelength (Δλ). To find the scattered wavelength (λ'), we subtract Δλ from the initial wavelength (λ).
Using the formula Δλ = (h / (m_e * c)) * (1 - cos(θ)), where h is Planck's constant, m_e is the electron mass, c is the speed of light, and θ is the scattering angle, we can calculate the change in wavelength for each angle.
However, without the initial wavelength (λ) of the X-rays, we cannot provide the exact scattered wavelengths at the given angles. The initial wavelength is crucial in determining the scattered wavelengths. To obtain the scattered wavelengths, you would need to know the initial wavelength of the X-rays.
Therefore, without the initial wavelength, we cannot provide the specific scattered wavelengths at the given angles.

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The latitude and longitude coordinates for Location C are given as 50S, 68W. Therefore, the correct answer is 4) Cannot discern from the information provided.

Latitude and longitudinal lines are shown on a globe of Earth as parallel and vertical lines. To determine which distance is farther, we need to compare the distance between Location B and the Equator with the distance between Location C and the Equator.

However, the latitude and longitude coordinates for Location B and the specific direction or coordinates of the Equator are not provided. Without this information, it is not possible to determine which distance is farther between Location B and the Equator or Location C and the Equator.

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Answer: 9.79m/s2

Explanation: Just did a quiz with this question

Answer:

The gradient of the graph is the mass of the object.

Explanation:

In a force-accleration graph, you are plotting force against acceleration. And from the formula for Force; F = ma

Make the mass subject of the formula; u'll get m = F/a. meaning that to get the mass of the object u have to find the gradient of the force-accleration graph.

Answer:

\(f = ma\)

Explanation:

where m is the inertial mass of the object. This equation indicates that a graph of acceleration vs force should be a straight line.

Answer:

special Olympics its the correct answer

The maximum value of capacitance C1, when capacitor C2 is chosen as 200 nF, is not constrained or limited, and it can be any value greater than or equal to zero in nanofarads (nF).

To determine the maximum value of capacitance (C1) when capacitor C2 is chosen as 200 nF, we need to consider the total equivalent capacitance in the circuit.

The given circuit diagram is not provided in the question, so I'll provide a general approach based on the assumption that capacitors C1 and C2 are connected in parallel.

When capacitors are connected in parallel, the total equivalent capacitance (C_eq) is calculated by summing the individual capacitance values:

C_eq = C1 + C2

Since C2 is given as 200 nF, we can express the equation as:

C_eq = C1 + 200 nF

However, the maximum value of C1 is not specified in the question. If we assume that there are no other constraints or limitations, we can simply state that the maximum value of C1 can be any value greater than or equal to zero.

Therefore, the maximum value of capacitance C1, when capacitor C2 is chosen as 200 nF, is not constrained or limited, and it can be any value greater than or equal to zero in nanofarads (nF).

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Answer: c living in a camber in an under water habitat

Explanation:

If Aldebaran were to explode tonight then we will be able to see this explosion on the Earth in approximately 65 years. A light-year is a distance that light travels in one (1) year.

A light-year can be defined as a unit equal to the distance that light needs to travels in one (1) year on the Earth.

One light-year can be considered as a unit that equates to approx. 9.7 trillion kilometers (km) or 5.9 trillion miles.

In consequence, a light-year is a distance unit instead of a unit of time, and this unit was developed by Otto Ule.

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Answer:

60J

Explanation:

To determine the work output, we need to consider the effect of friction. Friction can reduce the efficiency of a machine and result in a lower work output compared to the ideal case.

Work is defined as the product of force and displacement:

Work = Force × Distance

In this case, the input force is 30 N and the input distance is 2 m, so the input work would be:

Input Work = 30 N × 2 m = 60 J

If we factor in the effect of friction, the actual work output may be less than the input work. Therefore, in this context, the work output must be less than 60 J. So the correct answer is: It must be less than 60 J.

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Answer:

17.5

Explanation:

1+1=2

2/2=1

10+25=35

35/2=17.5

Answer:

The short answer is that it takes sunlight an average of 8 minutes and 20 seconds to travel from the Sun to the Earth.

Explanation:

how long does it take sunlight to reach Earth? This sounds like a strange question, but think about it. Sunlight travels at the speed of light. Photons emitted from the surface of the Sun need to travel across the vacuum of space to reach our eyes. If the Sun suddenly disappeared from the Universe (not that this could actually happen, don't panic), it would take a little more than 8 minutes before you realized it was time to put on a sweater.

In 1964 Gell Mann and Zweig introduced a baryonic triplet consisting of three hypothetical particles that are termed as Quarks.

The quark model is able to explain many features of elementary particles and gives a good insight into the structure of baryons and mesons.

Quarks are the fermions as the basic building block if we use fermions then we can get fermions and bosons. These bosons are assumed as antiquark pairs.

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Answer:

Generally, when thermal energy is transferred to a material, the motion of its particles speeds up and its temperature increases. There are three methods of thermal energy transfer: conduction, convection, and radiation. ... Convection transfers thermal energy through the movement of fluids or gases in circulation cells.Convection. When a fluid, such as air or a liquid, is heated and then travels away from the source, it carries the thermal energy along. This type of heat transfer is called convection. The fluid above a hot surface expands, becomes less dense, and rises.

Answer: (1a) The magnitude of the centripetal acceleration is 31.4 m/s^2, and the direction is towards the center of the circular motion.

(2a) The astronaut is experiencing 31.4 m/s^2 / 9.8 m/s^2 = 3.22 g's.

(3a) The torque needed to bring the centrifuge to a stop is (5500.0 kg * 31.4 m/s^2 * 20.0 m) = 3,420,000 N * m.

2:

(2a) The period of the pendulum's motion is 0.20 m / 0.10 m/s = 2.0 seconds, and the frequency is 1 / 2.0 s = 0.50 Hz.

(2b) The graphs of velocity and acceleration would be 0.5 seconds out of phase with the displacements shown.

(2c) The acceleration due to gravity on the surface of the planet is 0.10 m/s^2 / 9.8 m/s^2 = 1.02 g's.

Explanation:

Answer:

Output power = 500 KW

Explanation:

Given the following data;

Efficiency = 20%

Input power = 2500 KW

To find the output power;

\( Efficiency = \frac {Out-put \; power}{In-put \; power} * 100 \)

Substituting into the equation, we have;

LET Output power = OP

\( 20 = \frac {OP}{2500} * 100 \)

Cross-multiplying, we have;

\( 20 * 2500 = OP * 100 \)

\( 50000 = OP * 100 \)

\( OP = \frac {50000}{100} \)

Output power = 500 KW

Yes, the total acceleration of the tether/mass combination can be zero if the angular velocity is constant.

When a massless tether with masses tied to both ends rotates about a fixed axis through the center, the total acceleration of the system can indeed be zero even if the angular velocity remains constant.

This can occur if the centrifugal acceleration due to the rotating motion precisely balances the centripetal acceleration required to keep the masses moving in a circular path.

The centrifugal acceleration is outward, pushing the masses away from the axis of rotation, while the centripetal acceleration acts inward, keeping the masses in their circular path. When these two accelerations are equal in magnitude and opposite in direction, their vector sum results in zero net acceleration.

Achieving this requires careful adjustment of the masses, their distances from the axis of rotation, and the angular velocity.

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Answer:

14.3 x 10^8Hz

Explanation:

Using

Frequency= speed of light /wavelength

Then substituting

3*10^8m/s / 0.21m

= 14.3 x10^8 Hz

The horizontal component of force P is 216.5 N and the vertical component is 125 N.

Since we are given the magnitudes of the forces P and Q and the angles they make with the horizontal axis, we can use trigonometry to find their horizontal and vertical components.

Let's first focus on force P, which has a magnitude of 250 N and makes an angle of 30 degrees with the horizontal axis. We can break this force down into its horizontal and vertical components using the following equations:

Horizontal = P * cos(theta)

Vertical = P * sin(theta)

where P is the magnitude of force P and theta is the angle it makes with the horizontal axis.

Substituting the given values, we get:

Horizontal = 250 N * cos(30 degrees) = 216.5 N

Vertical = 250 N * sin(30 degrees) = 125 N

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