A noiseless 4-khz channel is sampled every 1 msec. what is the maximum data rate? how does the maximum data rate change if the channel is noisy, with a signal-to-noise ratio of 30 db?

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

Answer:

velocity has direction and acceleration doesn't

Answer:

An electric current into a magnetic field

Explanation:

:) please give a heart if this helped you in any way. ;O)

To answer this question, we need to use the formula that relates force, mass, and acceleration: F=ma. We can rearrange this formula to solve for acceleration: a=F/m.

In this case, we are given that the force applied by the motor is 13.9N, and we need to find the velocity at which it will pull a mass. We are not given the mass directly, but we can calculate it using the power of the motor (300W) and the velocity we are trying to find.

Power is defined as the rate at which work is done, or P=W/t, where W is the work done and t is the time it takes to do that work. In this case, we can assume that the work done is moving the mass a certain distance, and we can use the velocity to calculate the time it takes to do that work. So, we have:

P=Fv

where P=300W, F=13.9N, and v is the velocity we want to find. Rearranging this equation gives:

v=P/F

Now we can substitute in the values for P and F to get:

v=300/13.9

v≈21.6 m/s

So, at a velocity of 21.6 m/s, a 300.W motor applying a force of 13.9N can pull a mass.

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(a) Moment of the wedge shift is 21168 kg-m. (b) The moment of the centre of buoyancy shift is 36.7 kN-m. (c) The value of the righting moment or upsetting moment is 42.2 kN-m.

a. The moment of the wedge shift in kg-m can be calculated by multiplying the weight of water displaced by the area of the triangle formed by the triangle's centroid and the point at which the triangle intercepts the waterline.

The moment of the wedge shift is given by;

Moment of the wedge shift = weight of water displaced x distance from the centroid of the triangle to point of interception of the waterline

= (0.5 × AB × AC × BC) ρ g d= (0.5 × 4.5 × 2.4 × AB) ρ g d= 5.4 AB ρ g

where AB is the distance between the centerline of the barge and the point of interception of the waterline.ρ is the density of water = 1000 kg/m3.g is the acceleration due to gravity = \(9.81 m/s^2\).

Substituting \(AB = 0.4 m,\rho = 1000 kg/m^3,g = 9.81 m/s^2\) in the above equation:

Moment of the wedge shift = 21168 kg-m.

b. Moment of the centre of buoyancy shift is given by the formula,

Moment of the centre of buoyancy shift = GM x displacement

Where, Gm = the distance between the centre of gravity and the metacentre. Displacement = the weight of water displaced by the barge.

The distance Gm can be calculated using the formula:

Gm = I/V

where I is the second moment of area of the waterplane about its longitudinal axis and V is the volume of displacement.  

The second moment of area:

I = b x d3/12

where b is the breadth of the waterplane and d is the depth of the waterplane below the waterline.

The volume of displacement =\((12 * 4.5 * 2.4) m^3= 129.6 m^3\)

The distance Gm can be calculated as follows:

Gm = I/V= [4.5 × (2.4)3]/12 ÷ [12 × 4.5 × 2.4]= 0.28 m

The displacement of the barge is given by;

Displacement =\(12 * 4.5 * 2.4 * 1000 kg/m^3= 129.6 kN\)

Thus, the moment of the centre of buoyancy shift = GM x displacement

= (0.28 m × 129.6 kN) = 36.7 kN-m

c. Value of the righting moment or upsetting moment can be calculated using the formula;

Upsetting moment = W × GM

where W is the weight of the barge. The weight of the barge can be calculated using the formula:

Weight of barge = Displacement + weight of the wedge

= 129.6 + 21.12= 150.72 kN

The distance between the centre of gravity and the metacentre (Gm) has already been calculated as 0.28 m.

Therefore, the Upsetting moment = W × GM= 150.72 × 0.28= 42.2 kN-m

Therefore, the value of the righting moment or upsetting moment is 42.2 kN-m.

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The angle the second snowball should be thrown to arrive at the same point as the first is determined as 35 degrees.

The range of projectile is the maximum horizontal displacement of the projectile along the horizontal direction.

Mathematically, the maximum range of a projectile is given as;

R = u² sin (2θ) / g

where;

When the angle of projection = 55⁰

R = (33.3² x sin (2 x 55) ) / (9.8)

R = 106.33 m

When the angle of projection = 90⁰ - 55⁰ = 35⁰

R = (33.3² x sin (2 x 35) ) / (9.8)

R = 106.33 m

Thus, when the second snowball is projected at an angle of 35⁰ it will attain the same horizontal displacement as the first snowball.

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Nature and nurture both play a role in how people develop. Nature refers to the genetic or inherited traits we are born with, and nurture refers to the environment and experiences that shape us as we grow up. Together, these two components make up the basis for human development.

Answer:

A)    Net force in the horizontal direction is 19.641 N

B)    Net force in the vertical direction is 20 N

Explanation:

The normal force (20 N) and the weight force (20 N) cancel out.

Next lets find the horizontal and vertical components on the right side of the diagram.

We are given the angle and the hypotenuse.

First lets find the opposite side (vertical component).

\(sin(x)\frac{O}{H}\)

\(O=Hsin(x)\)

\(O=40sin(30)\)

\(O=20\)

Now lets find the adjacent side (horizontal component).

\(cos(x)=\frac{A}{H}\)

\(A=Hcos(x)\)

\(A=40cos(30)\)

\(A=34.641\)

Now we can ignore the 40 N force.

We are left with 1 force in the vertical direction.

So the net force in the vertical direction is 20 N

We are left with 2 forces in the horizontal direction.

We have 1 force of 15 Newtons moving in the left direction.

We also another force of 34.641 Newtons moving to the right.

So the net force in the horizontal direction is 19.641 N.

The wavelength of a wave is the distance between two consecutive points on the wave that are in phase.

The wavelength is the distance between two consecutive nodes or two consecutive antinodes.

The first harmonious wavelength on a rope is given by the equation

λ = 2L/ n

where λ is the wavelength, L is the length of the rope, and n is the harmonious number. For the first harmonious, n = 1.

In this case, the length of the rope is L = 4m. Substituting into the equation over, we get

λ = 2( 4m)/ 1

λ = 8m

thus, the first harmonious wavelength on the rope is 8 measures.

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Answer:

ALL OF THE ABOVE

Explanation:

A vehicle undergoes acceleration when what three things happen?

If there is acceleration, the velocity will change, either increasing or decreasing. The correct answer is D.

The rate of growth of velocity is defined as acceleration. Acceleration usually indicates that the speed is changing, but this is not always the case. When an object is in motion in a circular track at a steady speed, it is still going to accelerate because its velocity direction changes.

Newton's Second Law states that an object's acceleration is the net result of all force applied to it. Acceleration is measured in meters per second squared.

The formula is given as,

a = Δv / Δt

If acceleration exists, the change of the velocity will be there and it may be increasing or decreasing. Then the correct option is D.

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Answer:

a)603 km/hr

Explanation:

Answer:

Could you give information about the lab

Explanation:

Answer:

The spectrum of each astronomical object

Explanation:

I took the test and got it right

\( \sf• \: The \: current \: in \: a \: circuit \: is \: 5 \: amps. \: and \: resistance \: is \: 30 \: Ohms.\)

\( \\ \)

\( \sf{• \: The \: Potential \: Difference. }\)

\( \\ \)

\( \huge\bf{ \underline{ Solution:- }}\)

\( \sf According \: to \: the \: question, \)

\( \sf• \: Current \: (I) = 5 \: Amps.\)

\( \sf• \: Resistance \: (R) = 30 \: Ω\)

\( \sf{Potential \: difference \: means \: Voltage \: ( V).}\)

\( \sf{We \: know \: that, }\)

\( \bf \red{ \bigstar{ \: V = IR }}\)

\( \rightarrow \sf V =5 \times 30\)

\( \rightarrow \sf V =150\)

\( \\ \)

\( \sf \purple{Therefore, \: the \: potential \: difference \: is \: 150 \: v \: .}\)

Answer:

0.72 atm

Explanation:

Given that the atmospheric pressure on a mountain is 550 mmHg.

Where 1 atm is equal to 760 mmHg.

To Convert millimetre mercury (mmHg) into atmospheric pressure units (atm) , divide the magnitude of pressure by 760. That is,

Pressure = 550/760

Pressure = 0.724 atm

Therefore, pressure in atm is 0.72 atm in two significant figures

The largest producer of primary air pollution in the United States is what? electricity producing plants.

Answer:

electricity production

Explanation:

The ball at the top of the loop has a gravitational potential energy of 7.55 J.

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The amount of magnetic energy he amount of magnetic energy stored in a solenoid depends on  in a solenoid depends on its dimensions and the strength of the magnetic field within it.

To calculate it, we need additional information such as the number of turns in the solenoid, the current flowing through it, and its inductance. Without these details, it's not possible to provide an exact value. However, the magnetic energy in a solenoid is generally given by the formula: U = (1/2) * L * I^2, where U is the magnetic energy, L is the inductance, and I is the current.

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Answer:

2 m/s/s

Explanation:

a= (vf-vi)/t

a = (26-22) / 2

a = 2 m/s/s

Answer:For a bell-shaped data set, approximately 68% of the data will be in the interval μ - σ to μ + σ, where μ is the mean of the data and σ is the standard deviation. This is known as the "68-95-99.7 rule" or the empirical rule, which applies to any normal distribution or approximately normal distribution. Specifically, approximately 68% of the data falls within one standard deviation of the mean (μ ± σ), approximately 95% falls within two standard deviations (μ ± 2σ), and approximately 99.7% falls within three standard deviations (μ ± 3σ).

Explanation:

For a bell-shaped or normally distributed data set, about 68% of the data will fall within the range of mean minus standard deviation (μ - σ) to mean plus standard deviation (μ + σ). The mean is the average of the data set and the standard deviation measures how spread out the data points are from the mean.

In statistics, if a data set follows a bell shape or normal distribution, approximately 68% of the data points will lie within the interval μ -σ to μ +σ. Here, μ denotes the mean (or average) of the data set, and σ denotes the standard deviation, which measures the dispersion of the data points from the mean. This principle is often referred to as the 68-95-99.7 rule or the empirical rule. This rule states that nearly all (about 99.7%) of the data will fall within three standard deviations from the mean.

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Patient C would be given a more severe diagnosis.

Option C is correct.

Diagnosis is considered as the process of determining which disease or condition explains a person's symptoms and signs.

Axis V rating scale is also called the Global Assessment of Functioning; the GAF went from 0 to 100 and provides a way to summarize in a single number just how adaptively a person was functioning overall.

So in the scenario above, Patient C was given a more severe diagnosis since the value is lower. In the Axis V  rating scale, the lower the number, the greater the danger.

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Complete question:

Patients A, B, C, and D all have similar symptoms and situational stressors. The major difference is that patient A's Axis V rating scale is 77, patient B's is 92, patient C's is 15, and patient D's rating scale is 32.

Which of the patients would be given a more severe diagnosis?

A.

Patient A

B.

Patient B

C.

Patient C

D.

Patient D

False. The rule does not necessarily involve holding a compass in your right-hand.

The right-hand rule is a general principle used in physics and engineering to determine the direction of various vectors.

There are different variations of the right-hand rule, but the basic idea is to use your right hand to orient your fingers or thumb in a particular direction to determine the direction of a magnetic field, force, or other vector quantity.

Thus, the rule does not necessarily involve holding a compass in your right hand.

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Determine if the following statement is true or false. The right-hand rule states that you should always hold a compass in your right hand.

 155 N

a) Once the elevator begins to accelerate, the normal force that the floor or the elevator exerts on the person is equal to the person's weight of 62 kg multiplied by the acceleration of the elevator, which is 2.50 m/s2.

This is calculated as F = m*a, where m is the mass of the person and a is the acceleration of the elevator.

Therefore, the normal force is equal to 155 N.

b) If the person is holding a 3.85 kg package by a light vertical string, the tension in the string once the elevator begins accelerating is equal to the mass of the package, 3.85 kg, multiplied by the acceleration of the elevator, which is 2.50 m/s2.

This is calculated as F = m*a, where m is the mass of the package and a is the acceleration of the elevator.

 Therefore, the tension in the string is equal to 9.625 N.

c) If the person pushed the "down" button instead of the up button, then the elevator will accelerate down with a magnitude of 2.50 m/s. The normal force on the person in this case is equal to the person's weight of 62 kg multiplied by the acceleration of the elevator, which is 2.50 m/s2. This is calculated as F = m*a, where m is the mass of the person and a is the acceleration of the elevator.

Therefore, the normal force is equal to 155 N.

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The voltage drop across the 20 2 lamp is approximately 3.32 V, and the voltage drop across the 300 lamp is approximately 6.68 V.

When two lamps are connected in series, they share the same current. The voltage drop across the two lamps is proportional to their resistance, which can be calculated using Ohm's Law. We can use the equation:V = IR,where V is voltage, I is current, and R is resistance. Given that the two lamps are connected in series with a 10 V battery, we know that the voltage drop across the two lamps will be 10 V. We can use this information to find the resistance of the two lamps combined.

Using Ohm's Law:10 V = I(R1 + R2),where R1 and R2 are the resistances of the two lamps, and I is the current flowing through the circuit. Since the two lamps share the same current, we can say that I is the same for both lamps. Therefore, we can rewrite the equation as:10 V = I(R1 + R2)orI = 10 / (R1 + R2)To find the voltage drop across each lamp, we can use the equation:V = IR. For the 2002 lamp, we know that R1 = 2002 Ω. For the 30 02 lamp, we know that R2 = 3002 Ω. We can substitute these values into the equation:V1 = IR1V1 = (10 / (2002 + 3002)) * 2002V1 ≈ 3.32 VFor the 300 lamp, we can use the same equation:V2 = IR2V2 = (10 / (2002 + 3002)) * 3002V2 ≈ 6.68 VTherefore, the voltage drop across the 20 2 lamp is approximately 3.32 V, and the voltage drop across the 300 lamp is approximately 6.68 V.

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D. 36 in Kr

Let's analyze all the elements in Option

By looking at all the given options we can clearly see that Krypton has the highest number of electrons as compared to the given options so It is the answer. Also with the highest mass, in the given four options.

It can be easily seen in options as the Number of electrons and mass is already written in options.

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Explanation:

Distance = rate × time

1 m = (2.99792×10⁸ m/s) t

t = 3.33565×10⁻⁹ s

Light is the fastest thing in the universe. The speed of light is 2.99792 x 10⁸ m/s . The time that light takes to cover a distance of 1 meter is just 3.39  x 10⁻⁹seconds.

Speed is a physical quantity that means the distance in meter covered by a moving body in one second.  The speed of light is  2.99792 x 10⁸ m/s. Light from sun only takes 8 min to travel to the earth surface.

The speed of a moving particle or wave is mathematically the ratio of distance and time. Thus time of travel can be found out from the distance and speed.

It is given that the distance travelled by light is 1 m and its speed is 2.99792 x 10⁸ m/s. Thus the time taken to  travel is calculated as follows:

Time = distance/speed

         = 1 m/ (2.99792 x 10⁸ m/s)

         = 3.39  x 10⁻⁹s

Therefore, the time that light takes to cover a distance of 1 meter is just 3.39  x 10⁻⁹seconds.

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The correct answer is(b). There is a physical change from the solid state to a gas state where energy between the molecules increases.

During sublimation, carbon dioxide transitions directly from the solid state (dry ice) to the gas state without passing through the liquid phase. In this process, individual molecules of carbon dioxide gain energy from the surroundings, leading to an increase in their kinetic energy and molecular movement.

As a result, the carbon dioxide molecules separate from each other and form a gas. This phase change is considered a physical change rather than a chemical change since the chemical composition of carbon dioxide remains the same throughout the process.

Therefore, the sublimation of carbon dioxide results in a physical change where the molecules transition from the solid state to the gas state, gaining energy and increasing their molecular movement.

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A 5 m simple span with a superimposed uniform load of 4332 N/m would be adequate for a solid, rectangular eastern hemlock beam with dimensions of 10 cm x 20 cm.

There are several considerations to make when choosing a solid, rectangular eastern birch beam for a 5 m simple length carrying a stacked uniform load of 4332 N/m. The maximum bending moment and shear force that the beam will encounter must first be determined. The bending moment, which in this example is 135825 Nm, is equal to the superimposed load multiplied by the span length squared divided by 8. Half of the superimposed load, or 2166 N, is the shear force.

The size of the beam that can sustain these forces without failing must then be chosen. We may use the density of eastern hemlock, which is about 450 kg/m3, to get the necessary cross-sectional area. I = bh3/12, where b is the beam's width and h is its height, gives the necessary moment of inertia for a rectangular beam. We discover that a beam with dimensions of 10 cm x 20 cm would be adequate after solving for b and h. Finally, we must ensure that the chosen beam satisfies the deflection requirements. Equation = 5wl4/384EI, where w is the superimposed load, l is the span length, and EI is an exponent, determines the maximum deflection of a simply supported beam.

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Answer:  1350 m/s

Explanation:

The equation for the speed of a wave: Speed = Wavelength x Frequency