Which information about a sinusoidal signal does NOT appear in the phasor representation? amplitude frequency phase units

The condition for the first dark fringe through a single slit of width w is that the distance between the central maximum and the first dark fringe is equal to half of the wavelength of the incident light.

This condition is known as the "half-wavelength condition". The width of the fringe is determined by the width of the slit and the wavelength of the incident light. As the width of the slit increases, the width of the fringe also increases.
 The condition for the first dark fringe through a single slit of width "w" occurs when the path difference between the light waves from the edges of the slit is equal to half the wavelength (λ/2). This condition can be expressed as:

w * sin(θ) = λ/2
Here, "w" represents the width of the single slit, "θ" is the angle between the central maximum and the first dark fringe, and "λ" is the wavelength of the light passing through the slit.

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>>> A plane mirror has a reflective surface that is flat (planar). The angle of reflection equals the angle of incidence for light rays striking a planar mirror. A virtual picture is a representation of an object created at the spot where light rays appear to originate.

Hope it helps

Answer:

any smooth surface which can return back the rays of light in to the same medium is called a plane mirror.

hope it helps

When the volume in which a gas is contained is increased at a constant temperature, the pressure of the gas will decrease. This relationship between volume, pressure, and temperature is described by Boyle's law, which states that the pressure of a gas is inversely proportional to its volume, at constant temperature.

Here's how increasing the volume of a gas can lead to a decrease in pressure:

1. Gas molecules have kinetic energy: Gas molecules are in constant random motion and have kinetic energy. When gas is contained in a smaller volume, the gas molecules collide more frequently with the walls of the container, resulting in higher pressure.

2. Decreased number of collisions: When the volume of the container is increased, the gas molecules have more space to move around, and the frequency of collisions with the walls of the container decreases. This reduction in collisions leads to a decrease in pressure.

3. Decreased concentration of gas molecules: Increasing the volume of a gas container also leads to a decrease in the concentration of gas molecules in the container. This means that there are fewer gas molecules per unit of volume, resulting in lower pressure.

4. Decreased force per unit area: When the volume of the container is increased, the same number of gas molecules now occupy a larger volume, resulting in a lower force per unit area exerted by the gas molecules on the walls of the container. This lower force per unit area leads to a decrease in pressure.

Therefore, when the volume in which a gas is contained is increased at a constant temperature, the pressure of the gas decreases due to the decreased number of collisions, decreased concentration of gas molecules, and decreased force per unit area exerted by the gas molecules on the walls of the container. This relationship is described by Boyle's law, which is an important principle in the study of gases.

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The work required to lift a 10 kg medicine ball from the floor to 5 m in the air is 490 J.

To calculate the work done, we use the formula: work = force × distance.

In this case, the force required to lift the medicine ball is equal to its weight, which is calculated by multiplying the mass (10 kg) by the acceleration due to gravity (9.8 m/s^2). So the force is 10 kg × 9.8 m/s^2 = 98 N.

The distance lifted is 5 m.

Plugging these values into the formula, we get work = 98 N × 5 m = 490 J.

Therefore, it would take 490 joules of work to lift the medicine ball to a height of 5 m.

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Answer:

2 1 3

Explanation:

Answer:

the answer is 3,1,2

edg2020

Explanation:

The Factors include the following:

Capabilities and Security.

Nuclear weapons are a type of weapon that uses nuclear reactions to create destructive explosion.

When a nuclear weapon explodes, it gives off four types of energy: a blast wave, intense light, heat, and radiation.

The factors that may cause a country to obtain or not to obtain nuclear weapons are discussed below:

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Answer:

yes

Explanation:

Generally, darker colors dominate so a person with one brown-eyed gene and one blue-eyed gene will have brown eyes. The only way to present blue eyes is to inherit two copies of the blue-eyed gene. However, brown-eyed parents can pass a recessive blue-eyed gene. Therefore, two brown-eyed partners can birth a blue-eyed baby.

The final angular velocity ,  angular displacement,  initial rotational kinetic energy, final rotational kinetic energy and work done on the disk are respectively 25 rad/s, 150 rad, 0.25 Joule, 6.25 Joule, and 6.00 Joule.

Given parameters:

Mass of the disc; m = 0.5 kg.

Initial angular velocity: ω₀ = 5 rad/sec

Mass of inertia; I =  0.02kg.m².

Angular acceleration; α = 2 rad/sec².

1. The disc final angular velocity at 10 second =  ω₀ + α t

= 5 + 10×2 rad/s

= 25 rad/s.

2.  The disc angular displacement of the disc at the end of 10seconds;

d = ω₀t + 1/2 α t²

= 5×10 +1/2 × 2 × 10² rad

= 150 rad.

3.  The initial rotational kinetic energy of the disc = 1/2 I ω₀²

= 1/2 × 0.02× 5² Joule.

= 0.25 Joule.

4. The final rotational kinetic energy of the disc at the end of 10seconds

=  1/2 I ω²

= 1/2 × 0.02 × 25² Joule

= 6.25 Joule.

5. The work done on the disk during the given time = final rotational kinetic energy - initial rotational   kinetic energy

= 6.25 Joule - 0.25 Joule

= 6.00 Joule.

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Answer:

852 mmHg

Explanation:

I looked it up

According to APICS (Association for Supply Chain Management), the record accuracy for A items should ideally be at least 95-99%. A items are considered high-priority inventory items that require close management and accurate record keeping due to their significant impact on the company's financial performance and overall supply chain efficiency.

The APICS (The Association for Operations Management) recommends that item records be accurate to within.98%. This indicates that a minimum of 98% accuracy is required for the physical inventory count to match the recorded inventory count. In order to effectively manage your inventory, cut down on waste, and prevent stockouts or overstocking, you must achieve high record accuracy.

According to APICS (The Association for Operations Management), the record accuracy for items should be at least 98%. This means that the physical inventory count should match the recorded inventory count at a minimum of 98% accuracy. Achieving high record accuracy is essential for effective inventory management, reducing waste, and avoiding stockouts or overstocking.

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Answer:

1 lb. is 453.592 grams

Explanation:

1lb is 453.592 grams

Answer:

Option B.

Explanation:

The bending of a wave when it reaches the interface separating two media is called refraction of light.

In figure B, the wave initially in medium 1. Then it reaches the interface. After that it bends. It means the bending of light occurs in this case.

Hence, the correct option is (B).

The length of the spring when stretched by 100 N assuming that the elastic limit is not reached is 30 cm (option A)

First, we shall obtain the spring constant of the spring. This is show below:

F = Ke

50 = K × 5

Divide both sides by 5

K  = 50 / 5

K = 10 N/cm

Next, we shall determine the extension when a 100 N is applied. This is shown below:

F = Ke

100 = 10 × e

Divide both sides by 10

e = 100 / 10

e = 10 cm

Finally, we shall determine the length of the spring. Details below:

Length of spring = original + extension

Length of spring = 20 + 10

Length of spring = 30 cm (option A)

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The object would need to be dropped from a height of 324.9 meters to reach a speed of 80.0 m/s before reaching the ground.


The speed of an object in free fall can be calculated using the equation v = gt, where v is the final velocity, g is the acceleration due to gravity (9.81 m/s^2), and t is the time taken to reach that velocity. We can rearrange this equation to solve for time: t = v/g. We know that at the point of impact with the ground, the object's velocity is 80.0 m/s.

Therefore, the time taken to reach this velocity is t = 80.0/9.81 = 8.15 seconds. We can then use the kinematic equation d = 1/2gt^2 to calculate the distance the object falls in this time. d = 1/2 x 9.81 x (8.15)^2 = 324.9 meters. Therefore, the object would need to be dropped from a height of 324.9 meters to reach a speed of 80.0 m/s before reaching the ground.

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Acceleration increase down a ramp, due to an object is free to move under the influence of gravity. That's why acceleration increases.

Acceleration is a measure of how quickly an object's velocity changes. On a ramp, an object is free to move under the influence of gravity. The gravitational force acting on an object is always directed downward, and the force of friction acting on an object is directed upward. The force acting on an object moving down a ramp is the force of gravity minus the force of friction. Since the force of gravity is greater than the force of friction, the net force acting on the object is directed downward, which causes the object to accelerate downward. The angle of the ramp affects the force of friction, as the greater the angle of the ramp, the greater the force of friction, and the less the net force acting on the object and less acceleration. Therefore, acceleration increases down a ramp because the net force acting on an object is directed downward and the angle of the ramp affects the force of friction.

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Explanation:

Use half life equation:

A = A₀ (½)^(t / T)

where A is the final amount,

A₀ is the initial amount,

t is time,

and T is half life.

0.375 = 3 (½)^(1 / T)

0.125 = (½)^(1 / T)

(½)^3 = (½)^(1 / T)

3 = 1 / T

T = 1/3 hours

T = 20 minutes

Answer:

Arsenic

Explanation:

Arsenic is in group 5 and period 4. Group numbers tell us the number of valence electron and period number tells us the number of shells in an element.

Almost all impact craters on Venus are option 2: Ghost Craters.

Regarding the volcanoes on Venus, the correct option is 2: Volcanoes on Venus are uniformly distributed across the surface.

Ghost craters are impact craters on Venus that have been heavily modified or erased over time due to Venus' intense volcanic activity and geological processes. The thick atmosphere, high surface temperatures, and volcanic activity on Venus cause the craters to become filled, buried, or modified, making them difficult to observe in their original form. As a result, most impact craters on Venus are not easily recognizable as distinct circular features.

Regarding the volcanoes on Venus, the correct option is 2: Volcanoes on Venus are uniformly distributed across the surface.

Venus is known for its extensive volcanic activity, and volcanoes can be found throughout the planet's surface rather than being concentrated in a specific region or plateau. Venus has numerous volcanic features, including large shield volcanoes, volcanic domes, and lava flows, scattered across its entire surface.

Therefore  option (2) is correct.

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a) The kinetic energy of the car will be = 675000 J

b) The car should be dropped from a height of = 45 m, to have the same amount of kinetic energy just before impact.

c) No, the answer to part b does not depend on the car's mass.

a) To calculate the kinetic energy of the car,

Given, the mass of the car = 1500 kg

The velocity of the car = 30 m/s

The Kinetic energy is represented by - \(E_{k}\) ,

\(E_{k}\) = \(\frac{mv^{2} }{2}\)

= \(\frac{1500 * 30^{2} }{2}\)

= 675000 J

b) To have the same kinetic energy just before impact, the potential energy must be equal to the kinetic energy,

\(E_{p} = E_{k}\) = 675000 J

mgh = 675000

1500 x 10 x h = 675000

h = 675000 / 15000

h = 45 m

c) Conservation of energy says that,

\(E_{p} = E_{k}\)

mgh = \(\frac{mv^{2} }{2}\)

h = \(\frac{v^{2} }{2g}\)

Because of the cancellation of masses, the height is independent of mass.

Therefore, the height does not depend on the car's mass.

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a) What is the kinetic energy of a 1500 kg car traveling at a speed of 30 m/s (65mph)? b) From what height should the car be dropped to have this same amount of kinetic energy just before impact? c) Does your answer to part b depend on the car's mass?

Answer:

i aint doing hmw try it urself jk

Explanation:

The net charge, or the total of the positive and negative charges, is constant in an isolated system because electric charge is a conserved attribute. Electrical charge is transported by subatomic particles. In ordinary matter, the protons in the atoms' nucleus contain positive charge whereas the electrons carry negative charge.

Plate's surface area is 0.13 x 0.13.

= × m²

400 m is the distance between the plates (0.40 mm).

3.0 MV/m is the critical field strength in the case of air.

Let's calculate the voltage when using air as the dielectric.

V = 3××400×V = 1200 V

We now discover capacitance.

C = εA/d

C = (8.854×)(16.9×)/(400×)

= 374× F = 374pF

Let's generate energy.

E = (1/2)(374×)(1200) (1200)

E = 269.28 × J

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Answer: The equation that relates wavelength and frequency for electromagnetic waves is: λν=c where λ is the wavelength, ν is the frequency and c is the speed of light.

10/0.5=20 meter.

Explanation:

The speed of a wave has a wavelength of 0.5 m/s and a frequency of 2 hz is   0.25 m.

Wave is is a disturbance in a medium that carries energy as well as momentum . wave is characterized by amplitude, wavelength and phase. Amplitude is the greatest distance that the particles are vibrating. especially a sound or radio wave, moves up and down. Amplitude is a measure of loudness of a sound wave. More amplitude means more loud is the sound wave.

Wavelength is the distance between two points on the wave which are in same phase. Phase is the position of a wave at a point at time t on a waveform.

There are two types of the wave longitudinal wave and transverse wave.

Longitudinal wave : in which, vibration of the medium (particle) is parallel to propagation of the wave. Sound wave is a longitudinal wave.

Transverse wave : in which, vibration of the medium (particle) is perpendicular to propagation of the wave. Light wave is a Transverse wave.

The relation between velocity, frequency  and wavelength is,

c = λν

Where λ is wavelength, ν is frequency and c is velocity.

Given,

c = 0.5 m/s

ν = 2 hz

λ = ?

Putting all the values in the equation,

0.5 = 2λ

λ = 0.5/2 = 0.25 m

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Answer:

Explanation:

Call the bike on the right A

Call the bike on the left B

The car begins it's time when it passes A

4 minutes later, it passes B.

But B has moved in 4 minutes and that is the key to the problem.

How far has B moved.

t = 4 minutes = 4/60 hours = 1/15 of an hour.

d = ?

rate = 30 km / hr

d = r * t

d = 30 km/hr * 1/15 hours = 2 km

The distance between the bikes is 5 km.

So the car has traveled 5 - 2 = 3 km

d = 3 km

r = ?

t = 4 minutes = 1/15 hour

r = d/t = 3/(1/15)= 3 / 0.066666666  = 45 km/hr.

At an atomic level, electrostatics is responsible for most of the physical phenomena that we encounter in our everyday life. Every object we see around us, such as chairs, buildings, and people, are made up of atoms, and every atom has electrons that are negatively charged, protons that are positively charged, and neutrons that have no charge.

Electrostatics is the study of electric charges at rest and of the forces and fields associated with these charges. Electrons are held in atoms by the attraction of the positive nucleus for the negative charge of the electrons. This attraction is known as electrostatic force. The protons in the nucleus are also held together by electrostatic forces, which are much stronger than those that bind electrons to the nucleus.
The forces between charged objects are governed by Coulomb's Law. This law states that the force between two charged objects is proportional to the product of their charges and inversely proportional to the square of the distance between them. If the charges have the same sign, the force is repulsive; if they have opposite signs, the force is attractive.
Electrostatic forces play an important role in many physical phenomena, such as the attraction of dust particles to a TV screen, and the Van de Graaff generator, which uses electrostatic forces to build up very high voltages.

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Answer:

Which of the following... : constant velocity horizontal motion

A ball is thrown at certain... : 0 m/s

Rules affecting conductors are based on Copper and aluminum conductors.

Basically, conductors are the material that is used for the flow of current.

The main reason behind this is free electrons. All the conductors contain large no of free electrons in them which help in the flow of current from one point to another point. Copper and aluminum are the materials that are used as a conductor because they contain large numbers of free electrons and the cost of these materials is also not that much higher as compared to other conductors. Copper and aluminum conductors are easily available materials. Conductor size and area of the materials are also matters which is predefined by the National Electrical Code (NEC). According to the rules of NEC, materials are selected as a conductor. Rules affecting conductors are based on Copper and aluminum conductors.

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In this experiment, time represents the variable that is independent and graphed on the horizontal axis.

The period of the pendulum does not depend on the mass of the sphere, only on the length of the chord. Two pendulums with different masses but the same length have the same period. Two pendulums of different lengths have different periods with the pendulum with the longer string having a longer period.

For small deflections of less than 15 degrees, the pendulum experiences simple harmonic oscillations. This means that its restoring force is directly proportional to its deflection. A simple pendulum is called a simple pendulum. The longer the pendulum is, the longer it will take to travel the distance it swings from side to side. The period of a pendulum is the time it takes for the weight to swing and return to its original position so it means a longer period.

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Answer:

Approximately 3.789 light years, rounded up from 3.7886325633462.

Explanation:

The Coma Cluster is a place without wired internet, so it would take the speed of light times 6.826732 to get you answer of 3.7886325633462.

Answer:

η₁ = 2.6

Explanation:

Here, we will use snell's law to calculate the refractive of the substance:

\(\frac{\eta_2}{\eta_1} = \frac{Sin\theta_1}{Sin\theta_2}\)

where,

η₁ = refractive index of first substance = ?

η₂ = refractive index of second substance = 1.5

θ₁ = angle of incidence = 30°

θ₂ = angle of refraction = 60°

Therefore,

\(\frac{1.5}{\eta_1} = \frac{Sin\ 30^0}{Sin\ 60^0}\)

η₁ = 2.6