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22. You have Si and GaAs wafers at room temperature. (40 points) a. Answer: Between Silicon and GaAs, which semiconductor is better for fabricating light-emitting diodes (LED)? Why? (5 points) b. Calc

TRUE

THAT WORD IS THE KEY WORD.

Answer:

2.35 Nm.............. .

If λ occurs as an eigenvalue of A with multiplicity r, then there are r linearly independent eigenvectors associated with λ, and the geometric multiplicity of λ is equal to r.

Let A be an n × n matrix. An eigenvalue of A is a scalar λ such that there is a nonzero vector x satisfying the equation Ax = λx. This equation can be rewritten as the linear system (A − λI)x = 0, where I is the identity matrix. Nontrivial solutions to this equation exist if and only if the matrix A − λI is singular, which means that its determinant is zero. Thus, the eigenvalues of A are the roots of the polynomial equation det(A − λI) = 0, which is called the characteristic equation of A. The algebraic multiplicity of an eigenvalue is the number of times it appears as a root of the characteristic equation. The geometric multiplicity of an eigenvalue is the dimension of the eigenspace associated with that eigenvalue. The eigenspace of an eigenvalue λ is the set of all eigenvectors of A associated with λ, along with the zero vector.

The rank of A is the dimension of its column space, which is the span of its column vectors. The rank of A is equal to the dimension of the row space of A, which is the span of its row vectors. The rank of A is also equal to the number of nonzero singular values of A. If the rank of A is r, then the dimension of the nullspace of A is n − r. If A has r linearly independent eigenvectors associated with a particular eigenvalue λ, then the geometric multiplicity of λ is r. If the algebraic multiplicity of λ is greater than its geometric multiplicity, then there are not enough eigenvectors to form a basis of the eigenspace associated with λ, which means that A is not diagonalizable. If the algebraic multiplicity of λ is equal to its geometric multiplicity, then A is diagonalizable. If λ occurs as an eigenvalue of A with multiplicity r, then there are r linearly independent eigenvectors associated with λ, and the geometric multiplicity of λ is equal to r.

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The quantity of motion that occurs along a fault is termed C. displacement.

The quantity of motion that occurs along a fault is termed displacement. This refers to the distance and direction of movement that has taken place between two sides of a fault. It is measured in units such as meters or feet and is a crucial parameter in understanding the potential seismic hazard associated with a fault. Option A, the fault gouge, refers to the crushed and ground-up rock that accumulates along a fault zone due to movement. Option B, the fault gauge, is not a term commonly used in geology or seismology. Option D, accumulation, can refer to the build-up of stress or strain along a fault over time, which can eventually lead to displacement and an earthquake.

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Displacement is the amount of motion that happens along a fault. Hence option C is correct.

The displacement is the measure of the movement of the fault with respect to a particular point. It gauges the motion experienced during an earthquake or other types of fault activity.

The motion that happens during an earthquake or other fault activity is measured as displacement. Scientists can acquire insights into the physics of fault movement and increase their understanding of earthquake threats by examining displacement patterns during and after the earthquakes.

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Answer:

b. the baseband message bandwidth and selected modulation method determines the transmitted bandwidth of the  modulated carrier.

To drop the package accurately, you need to set your sight angle relative to the horizon at approximately 7.07 degrees.

When you are flying a plane at an altitude of 100 meters and a speed of 200 km/hr, dropping a package accurately requires considering both the horizontal distance to the target and the time it takes for the package to fall. The key concept to understand is that the horizontal distance covered by the plane during the package's fall should be equal to the distance from the plane to the target.

To determine the angle needed, we can break down the problem into two components: the horizontal velocity and the vertical velocity. The horizontal velocity remains constant at 200 km/hr throughout the flight. However, the vertical velocity is affected by gravity, causing the package to accelerate downward.

When the target comes into view through your sight, you should drop the package. At this moment, the horizontal distance covered by the plane should be equal to the distance from the plane to the target. By using basic trigonometry, we can calculate the time it takes for the package to fall. Since we know the initial height (100 m) and the acceleration due to gravity (9.8 m/s²), we can use the equation:

Time = √((2 * height) / gravity)

Once we have the time, we can calculate the horizontal distance covered by the plane during the package's fall by multiplying the time by the horizontal velocity (200 km/hr).

Finally, using the tangent function, we can determine the angle needed to set your sight relative to the horizon. The formula is:

Angle = arctan((horizontal distance covered by the plane) / height)

Calculating the values, the angle required is approximately 7.07 degrees.

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Answer:

e

Explanation:

e

Answer:

A? what do you mean? ahhahhhhahhahahahahahahahhahahahahaaa

Newton's law of gravitation says that the magnitude f of the force exerted by is f = Gmm/r² and acceleration due to gravity Gm/r².

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

The gravitational constant, denoted by the capital letter G, is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's theory of general relativity.

f = Gmm/r²

Newton's law of gravitation says that the magnitude f of the force exerted by is f = Gmm/r² and acceleration due to gravity Gm/r².

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Answer:

sequence

Explanation:

sequences are the way in which things are ordered, for example: 1, 2, 3, 4 is a sequence:)

If this is a true or false question, then true.

The speed of the satellite is constant since it follows a circular path with constant speed around the planet. The other quantities such as velocity, acceleration, and distance from the planet may vary.

A satellite following a circular path with constant speed around a planet has a constant angular velocity. In this scenario, the satellite maintains a fixed distance from the planet and moves with a uniform rate of rotation. The quantities that remain constant for this satellite are its orbital radius and angular velocity.

Velocity is the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time (e.g. 60 km/h northbound). Velocity is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of bodies.

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Answer: The wavelength and frequency of light are closely related. The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength.

Explanation:

In general, the sum of the squares of the voltages across individual components may not necessarily be equal to the square of the voltage across both elements combined. It would depend on the nature of the circuit and the relationship between the voltage across the components.

It would depend on the nature of the circuit and the relationship between the voltage across the components. To determine if the sum of the square of the maximum voltages across resistor (R) and inductor (L), Vr^2 and Vl^2 respectively, is equal to the square of the voltage across both elements, Vrl^2, in accordance with equation (2), we need to have more context and information about the specific equation and circuit being referred to. The relationship between Vr^2, Vl^2, and Vrl^2 would depend on the specific circuit configuration and the equations governing its behavior.

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Here, the final speed of the supersonic jet having initial speed of 200 m/s and acceleration of 23.1 m/s² within 20 seconds is 662 m/s. The Mach number of the jet is 2.

Acceleration of an object is the rate of change in velocity. It is a vector quantity having both direction and magnitude.

a = Δv/t

The initial velocity u = 200 m/s

a =23.1 m/s²

the time t = 20 s

v= u+ a t

then v = 200 m/s + (23.1m/s²) × 20s = 662 m/s

Hence, the final velocity of the supersonic jet is 662 m/s.

The conversion of final velocity to the Mach number is done as follows:

Mach number = speed of jet/speed of sound

 = 662 m/s /331 m/s

 = 2

Therefore, the Mach number of the jet is 2.

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Answer:

V=IR

V=100×190

=19000 V

The ambulance is moving at a speed of approximately 21.7 m/s. This scenario involves the Doppler effect.

This scenario involves the Doppler effect, which describes the change in frequency of a sound wave due to the relative motion between the source of the sound and the observer.

The formula for the Doppler effect in the case of a moving source and a moving observer is given by:

Δf/f₀ = (v₀ + v) / v₀

Where Δf is the change in frequency, f₀ is the frequency of the source, v₀ is the velocity of the observer, and v is the velocity of the source.

In this case, the cyclist is the observer, and the ambulance is the source of the sound. The initial frequency heard by the cyclist is 1460 Hz, and the frequency heard after being passed is 1448 Hz.

Let's denote the velocity of the cyclist as v₀ and the velocity of the ambulance as v. We can rearrange the formula to solve for v:

Δf/f₀ = (v₀ + v) / v₀

Δf/f₀ - 1 = v/v₀

v = v₀(Δf/f₀ - 1)

Substituting the given values:

v = 2.57 m/s * ((1448 Hz / 1460 Hz) - 1)

v ≈ 2.57 m/s * (0.9918 - 1)

v ≈ 2.57 m/s * (-0.0082)

v ≈ -0.021 m/s

Since velocity is a vector quantity, the negative sign indicates that the ambulance is moving in the opposite direction of the cyclist. To obtain the speed, we take the magnitude of the velocity:

Speed = |v| ≈ |-0.021 m/s|

≈ 0.021 m/s

Therefore, the ambulance is moving at a speed of approximately 0.021 m/s.

The ambulance is moving at a speed of approximately 0.021 m/s. However, note that the negative sign indicates it is moving in the opposite direction of the cyclist.

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Answer:

Since there is negative acceleration, a= -2m/s^2 . As brakes are applied, it's final velocity (v) becomes 0m/s and it's initial velocity (u) will be 20m/s .

So to find the time for which my Nano will stop we make use of one of the kinematical equation.

v=u+at  

0=20+(−2)t  

−20=−2t  

t=10seconds.  

So my Nano will take 10 seconds to stop.

Now to calculate the distance for which my Nano will stop is given by;

v2=u2+2ax  

(0)2=(20)2+2(−2)x  

0=400−4x  

−400=−4x  

x=100metres.  

So after applying brakes my Nano will stop after a distance of 100m.

Explanation:

The option that represents your employer's responsibility is to develop a  written hazard communication program. Thus, the correct option for this question is A.

The advantages of a communication program are as follows:

The responsibility of the employer is to develop and articulate the concept of a hazard communication program in detailed written form in order to satisfy the need and requirements of the team, person, society, etc. This becomes more important when it comes to synthesizing the thinking of large members in a single format.

Therefore, developing a written hazard communication program is an option that represents your employer's responsibility. Thus, the correct option for this question is A.

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Answer:

A straight line with no slope.

Answer:

C on edge 2021

Explanation:

The object reaches its maximum height of approximately 43 feet after 1.5 seconds.

An object is thrown upward from a height of 7ft, and its height h at time t can be found using the equation h = -16t^2 + 48t + 7. To find the maximum height and the time it takes to reach it, you'll need to determine the vertex of the parabola represented by the equation.

The vertex of a parabolic equation in the form of y = ax^2 + bx + c is given by the formula x = -b/(2a). In this case, a = -16 and b = 48. Plugging these values into the formula:

x = -(48) / (2 * -16) = 48 / 32 = 1.5

Now, we have the time, t = 1.5 seconds, when the object reaches its maximum height. To find the maximum height, plug the value of t into the height equation:

h = -16(1.5)^2 + 48(1.5) + 7 ≈ -16(2.25) + 72 + 7 ≈ -36 + 72 + 7 ≈ 43
Please note that the answers have been rounded to two decimal places as requested.

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Answer:

no they can't talk to each other bcoz of the lack of atmosphere.

Explanation:

l hope it helps you

Answer:

14.035087719298246 ≈ 14 hours

Explanation:

just subtract the 4000 and the 11000 from 23000 which gives you 8000. And then divide that my 570

The law of conservation of energy

Energy cannot be created or destroyed, but it can be changed from one form to another.

KE + PE = constant

The energy chain diagram in this case is chemical energy >> energy conversion >> motion (kinetic) energy + thermal energy.

An energy chain diagram is a graphic representation indicating the conversion between different types of energies.

Kinetic energy is a type of motion (movement) energy generated by using potential (stored) energy.

Chemical energy (in this case, the fuel of the car) is a type of energy that is stored to perform work.

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Answer:

Explanation: edmentum

Answer:

the neutron star becomes a black hole

Answer:

neutron stars

Explanation:

not really sure of an explanation, but maybe try looking up for "What type of star ends up as a blackhole?" should help