What are the two applications of wave interference to modern technology

Answer:

FIRST OF ALL get to know her, and DON'T STARE AT HER ALL THE TIME! And then you just let her know that you like her!

Explanation: HOPE THIS HELPS!

Answer:

b. coronal hole - particle of light that the sun emits, ranging in energy from radio to ultraviolet and x-ray

d. flare - an explosion on the sun that throws plasma into space (possibly to hit earth)

C. - an explosion on the sun that is very bright but just emits light

f. solar wind - steady stream of particles flying off surface of the sun into the solar system

h. fusion - the particle in the nucleus of an atom that has a positive charge, also the name of a hydrogen nucleus

Explanation:

The time taken for the first p-wave to reach the same seismic station is approximately 13 minutes.

In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.

v ∝ 1/t

v₁t₁ = v₂t₂

t₁/t₂ = v₂/v₁

t₁/t₂ = 0.6v₁/v₁

t₁/t₂ =  0.6

t₁ = 0.6t₂

t₁ = 0.6 x 22 mins

t₁ = 13.2 mins

Thus, the time taken for the first p-wave to reach the same seismic station is approximately 13 minutes.

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Calculation of moisture content. Calculate the moisture content on a wet-weight basis using the following formula: Moisture content (%) = W2 - W3 x 100 W2-W1. where, W1 = weight of container with lid; W2 = weight of container with lid and sample before drying; and W3 = weight of container with lid and sample after drying.

The acceleration of the crate is 1.196 m/s².

This can be defined as the rate of change of velocity.

To calculate the acceleration of the crate, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute the values above into equation 1

Hence, The acceleration of the crate is 1.196 m/s²

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Answer:

The speed of the wave is 15ms .

Explanation:

Answer:

the pendulum differs from 300 inches

Answer:

Contour lines (thinner lines) between index contours are called intermediate contour lines. In the map shown below, the elevation difference between index lines is 100 meters. The elevation difference or vertical distance between two adjacent contour lines would be 20 meters (100 : 5 = 20).

Explanation:

I think so not sure srry if wrong

Answer:

ummm what grade is this????

Explanation:

6.5E-7 m * 6 m / 1.5E-3 m = 0.0026 m = 2.6E-3 m is the distance between bands.

As a result, 2.6E-3 m separates the interference bands.

Interference in wavelength, also known as wave interference, is a phenomenon that occurs when two or more waves with the same or similar frequencies, amplitudes, and wavelengths interact with each other.

The two types of wave interference-constructive interference and destructive interference. In constructive interference, peaks of the waves coincide with each other, resulting in a spiral with greater amplitude. In harmful interference, the mountains of one wave coincide with the troughs of the other.

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The equation n · (r - r₀) = 0 represents the vector equation of a plane, where n is the normal vector and (r - r₀) is any vector on the plane, with the dot product ensuring perpendicularity.

The equation you provided, n · (r - r₀) = 0, does indeed represent the vector equation of a plane. Let's break it down to understand its components:

n represents the normal vector to the plane. It is a vector that is perpendicular to the plane and defines its orientation.

r represents a position vector that describes any point in space, and r₀ represents a specific position vector corresponding to a point on the plane.

The expression (r - r₀) represents a vector that originates from the point r₀ and points to any other point on the plane.

The dot product (·) of two vectors measures the degree of alignment between them. In this case, the dot product of the normal vector n and the vector (r - r₀) is taken.

When two vectors are orthogonal (perpendicular) to each other, their dot product is zero.

Therefore, the equation n · (r - r₀) = 0 implies that the normal vector n is perpendicular to the vector (r - r₀), indicating that the plane is perpendicular to the direction given by (r - r₀).

In summary, the equation n · (r - r₀) = 0 represents the vector equation of a plane, where n is the normal vector and (r - r₀) is any vector on the plane.

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If the current in a long straight wire is increasing, the current is induced in the circular loop will be generated in the nearby circular loop.

Faraday's Law states that the electromotive force (EMF) induced in a circuit is proportional to the rate of change of magnetic flux passing through it. As the current in the straight wire increases, the magnetic field around it strengthens, and the change in magnetic flux through the circular loop causes an induced current. The direction of this induced current is determined by Lenz's Law, which states that the induced current will flow in such a way as to oppose the change in magnetic flux causing it.

In this case, as the magnetic field due to the straight wire increases, the induced current in the circular loop will flow in a direction that generates a magnetic field opposing the increase in the straight wire's magnetic field. The magnitude of the induced current depends on the rate of change of the magnetic field, the loop's size, shape, and distance from the straight wire, as well as the resistance of the loop's material. If the current in a long straight wire is increasing, the current is induced in the circular loop will be generated in the nearby circular loop.

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Answer:

b

Explanation:

Machine 2’s mechanical advantage is greater, which means that this machine can do more work with less force than Machine 1.

The term mechanical advantage is the ratio of the radius of wheel to the radius of the axle for a wheel and axle system.

The true statement about the two machines that were compared; 1 and 2 is that, machine 2’s mechanical advantage is greater, which means that this machine can do more work with less force than Machine 1.

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The power series representation of a function and the radius of convergence can be determined using mathematical techniques.

To find the power series representation and the radius of convergence of a function, we can use methods such as Taylor series expansion and the ratio test.

In the Taylor series expansion, a function is represented as an infinite sum of terms, each of which is a power of the independent variable multiplied by a coefficient. This series provides an approximation of the function in terms of its derivatives evaluated at a specific point. The radius of convergence, denoted by r, is the distance from the center of the series expansion within which the series converges.

The ratio test is another method used to determine the radius of convergence. By taking the limit of the ratio of consecutive terms in the series, we can determine whether the series converges or diverges. The radius of convergence is the distance from the center of the series expansion where the ratio of consecutive terms approaches a specific value less than one.

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Answer:

To find the work done in moving the particle from the origin to x = 2, we need to integrate the force over the given interval.

The work done (W) is calculated by integrating the force function with respect to displacement (dx) from the initial position (0) to the final position (2):

W = ∫(0 to 2) (10x³ - 5) dx

Integrating the force function, we get:

W = ∫(0 to 2) (10x³ - 5) dx = [2.5x⁴ - 5x] evaluated from 0 to 2

Now, substituting the upper limit (2) and lower limit (0) into the equation:

W = [2.5(2)⁴ - 5(2)] - [2.5(0)⁴ - 5(0)]

 = [2.5(16) - 10] - [0 - 0]

 = 40 - 10

 = 30

Therefore, the work done in moving the particle from the origin to x = 2 is 30 units of work.

Explanation:

A wedge is like a ramp that can work while in motion.

As a tool for raising or lowering a load, an inclined plane, also referred to as a ramp, is a flat supporting surface that is tilted at an angle from the vertical direction with one end higher than the other. One of the six traditional simple machines that Renaissance scientists defined is the inclined plane.

Heavy loads are transported over vertical obstacles using inclined planes. Examples include a ramp used to load cargo into a truck, a pedestrian ascending a ramp, or an automobile or train ascending a grade.

Less force is needed to lift an object up an inclined plane than to lift it straight up, but the distance travelled is greater. Hence, a wedge is like a ramp that can work while in motion.

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The kinetic energy of another body having three times the mass of the given object will be 108 J

Kinetic energy-In physics, the kinetic energy of an object is the energy  it has due to  motion. It is defined as the work required to accelerate a body from a given mass from rest to a specified speed.

The kinetic energy of a body is given by \(K.E= \frac{1}{2}Mv^{2}\) (first equation)

Given K.E= 36J

Now the mass of second body is m=3M

also the second body is moving with the same speed v

So kinetic energy of second body K.E₂= \(\frac{1}{2}mv^{2} =\frac{1}{2}(3M)v^{2}\)=36×3

=108J (from first equation)

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To keep the scale properly spaced, Neptune would have to be placed 2,350 feet away from the scale model sun.

In the scale model at the Perot Museum, the Earth is represented by a poppy seed and is located 77 feet from the scale model Sun. To determine the distance for Neptune, we will use the given information about Earth's distance and the astronomical unit (AU) conversion.

1 AU is the average distance from Earth to the Sun, which is 93 million miles. Neptune is 30.1 AU from the Sun.

First, find the scale of the model by dividing the scaled Earth-Sun distance (77 feet) by 1 AU in feet (93 million miles * 5280 feet/mile):

Scale = 77 ft / (93,000,000 miles * 5280 ft/mile) ≈ 1.592 × 10^-10

Next, calculate the scaled Neptune-Sun distance by multiplying Neptune's actual distance in AU (30.1 AU) by the conversion factor (1 AU in feet) and the scale factor:

Scaled distance = 30.1 AU * (93,000,000 miles * 5280 ft/mile) * 1.592 × 10^-10 ≈ 2350 feet

So, in this scale model, Neptune would have to be placed approximately 2350 feet away from the Sun.

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The load, in amps, for a 3-phase, 208V feeder supplying a load calculated at 96.75kVA is approximately 268.64 Amps.

To calculate the load, in amps, for a 3-phase, 208V feeder supplying a load calculated at 96.75kVA, you can use the formula,

Load (Amps) = (kVA x 1000) / (Voltage x √3)

Where,
kVA = 96.75
Voltage = 208V
√3 = 1.732 (the square root of 3)

Multiply kVA by 1000 to convert it to VA.
96.75 x 1000 = 96750VA

Multiply voltage by the square root of 3.
208 x 1.732 = 360.256

Divide the VA value by the result from step 2.
96750 / 360.256 = 268.64 Amps

A 3-phase, 208V feeder's load in amps for feeding a 96.75kVA load is roughly equal to 268.64 Amps.

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Answer:

i think it is car B because  the greater the speed, the greater the drag force acting on the vehicle

Explanation:

Answer:

See below

Explanation:

(180 000 - 10) km  /  36 km/s = 4999.7 =~ 5000 seconds = 83 .3 min

\(1.73×10^-5\) s after closing the switch will the current through the inductor reach one-half of its maximum value.

Electric current is a term used to describe how much electricity flows across a circuit and how it flows in an electronic circuit. Amperes are used to measure it (A). The more electricity flowing across the circuit, the higher the ampere value.

While electrons move from negative to positive, current moves from positive to negative. The quantity of electrons that flow through a conductor's cross section in a second defines current. The unit of measurement for current is the ampere, abbreviated "amps." The letter "A" is used to represent amps.

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Time taken to get to the resturant with constant speed of 3.4 m/s is 294.2 seconds.

All the three are important concepts of motion and physics.

Speed = Distance/Time – Refers to how slow or fast an object moves. It describes the distance travelled divided by the time taken to cover the distance. Speed is directly Proportional to Distance and Inversely proportional to Time.

Distance is the length between two points.

We know that

speed,s = distance/ time

thus time,t = distance/speed

Here  d = 1000m; s = 3.4m/s

Hence we can say that

t = 1000/3.4 = 294.2 sec

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Answer:

It's A

Explanation:

Because I know it is

The record in the last row should be 2LiCl + 3O2.

A chemical reaction equation has two parts;

The interaction between the atoms of the reactants lead to rearrangement hence products are formed.

For the reaction, the record in the last row should be 2LiCl + 3O2.

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a. The pressure exerted by 0.5000 mole of N2 in a 10.000-L container at 25.0°C can be calculated using the ideal gas law.

b. The pressure can also be calculated using the van der Waals equation.

c. Comparing the results from parts a and b will provide insights into the deviations from ideal gas behavior.

a. To calculate the pressure using the ideal gas law, we can use the formula: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature. Plugging in the given values, we have:

P = (nRT) / V = (0.5000 mol * 0.0821 L·atm/(mol·K) * 298.15 K) / 10.000 L = 1.202 atm.

b. The van der Waals equation accounts for the non-ideal behavior of gases by introducing correction factors. It is given by: (P + a(n/V)^2)(V - nb) = nRT, where a and b are constants specific to the gas. For nitrogen (N2), a = 1.390 atm·L^2/mol^2 and b = 0.0391 L/mol. Rearranging the equation and plugging in the values, we have:

P = (nRT / (V - nb)) - a(n/V)^2 = ((0.5000 mol * 0.0821 L·atm/(mol·K) * 298.15 K) / (10.000 L - (0.0391 L/mol * 0.5000 mol))) - (1.390 atm·L^2/mol^2 * (0.5000 mol / 10.000 L)^2) = 1.187 atm.

c. Comparing the results, we see that the pressure calculated using the ideal gas law (1.202 atm) is slightly higher than the pressure calculated using the van der Waals equation (1.187 atm). This difference arises due to the assumptions made in the ideal gas law, such as negligible molecular volume and no intermolecular forces. The van der Waals equation takes into account the volume occupied by the gas molecules and the attractive forces between them, resulting in a lower pressure compared to the ideal gas law. The deviation is small in this case because nitrogen gas exhibits relatively weak intermolecular forces.

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Electric charge is not possible on an oil droplet

How do charged oil drops form?

When radiation (such as X-rays) ionizes the area between the metal plates, electrons from the air attach to the falling oil droplets and give them a negative charge.

They could only gain or lose electrons, which are the only charged particles. The "elementary charge" of an electron is 1.60 • 10-19 C, and it is present on every electron. Therefore, any oil droplet's charge needs to be a multiple of this quantity. Due to their typically low conductivity, lubricants can act as insulators in transformers and switches. Oils can conduct electrical current, though. Their conductivity is influenced by a number of variables, including as the base oil, additives, and polarity.

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Answer:

19

Explanation:

To find the atomic mass, you have to add together the number of neutrons and protons. It gives you the number of neutrons and the number of electrons is the same amount as the protons

The charge in fig A is positive, in fig B is positive and in fig C is negative. this is given by the Fleming's left hand rule.

In magnetism and electromagnetic, the Fleming Left-Hand Rule and Fleming Right-Hand Rule are fundamental principles. They were created by John Ambrose Fleming in the late 19th century as an easy method of determining the direction of motion in an electric motor or the direction of electric current or electric positive charge in an electric generator. It is crucial to remember that these criteria only indicate the direction of the three parameters (magnetic field, current, and force) when the direction of the other two parameters is known and do not define their magnitude.

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Ocean drilling cores have been used to confirm the age of the oldest oceanic crust, which was formed about missing years ago.

An electric charge, an electric current, and magnetic materials are all affected magnetically by a magnetic field, which is a vector field. A force perpendicular to the magnetic field and its own velocity acts on a moving charge in a magnetic field.

Because it shields the planet from dangerous radiations such solar winds, which have high radiation levels, the magnetic field of the Earth is crucial. The sun's solar energy includes solar winds.

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The force was applied to the football for approximately 0.244 seconds.

To find the duration for which the force was applied to the football, we can use Newton's second law of motion, which states that the force acting on an object is equal to the product of its mass and acceleration.

The formula for force is:

F = m * a

where F is the force, m is the mass, and a is the acceleration.

In this case, the force applied to the football is 18 newtons, and the mass of the football is 0.55 kg.

Now, we need to find the acceleration of the football. We can use the formula for acceleration:

a = (v - u) / t

where v is the final velocity, u is the initial velocity, and t is the time.

Given:

Initial velocity (u) = 0 m/s (the football is initially at rest)

Final velocity (v) = 8.0 m/s

Substituting the given values into the equation for acceleration, we can solve for a:

a = (8.0 m/s - 0 m/s) / t

a = 8.0 m/s / t

Now, we can substitute the known values into Newton's second law to solve for time:

F = m * a

18 N = 0.55 kg * (8.0 m/s / t)

Simplifying the equation:

18 N = 4.4 m/s^2 / t

To isolate t, we can rearrange the equation:

t = 4.4 m/s^2 / 18 N

Calculating this expression, we find:

t ≈ 0.244 seconds

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