at what rate must the potential difference between the plates of a parallel-plate capacitor with a 2.0uF capacitance be changed to produce a displacement current of 1. 5A?

The position-time graph gives the position of an object at any instant of time. The y-intercept gives the position of the object at the instant when the time is zero. That is, the y-intercept gives the initial position of the object.

Thus the given statement is false.

Jackson sells lemonade for $2 per cup. he paid $20 for supplies to sell 5 cups. What is the domain for this scenario

When light reflects on a smooth surface, it undergoes a change in neither of the above options (E)

When light interacts with a smooth surface, it reflects according to the law of reflection. This law states that the angle of incidence is equal to the angle of reflection. During this process, the following properties of light remain unchanged:
Speed: The speed of light is constant in a given medium. In this case, since the medium does not change, the speed of light remains constant before and after reflection.

Wavelength: The wavelength is a measure of the distance between successive crests or troughs in a light wave. As the medium does not change during reflection, the wavelength also remains constant.
Frequency: The frequency of light refers to the number of wave cycles that pass a given point per unit of time. Since both the speed of light and the wavelength remain constant during reflection, the frequency also remains unchanged.
In summary, when light reflects on a smooth surface, there is no change in its speed (A), wavelength (B), or frequency (C). Therefore, the correct answer is E. neither of the above.

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Answer:

which statement is true about his walk? he walked 1200m then went back 600m

Explanation:

because he walked 1200m east the 600m west so it adds up to 600

If the fringe spacing is 80 cm, the distance between the aerials  is 6.25 meter.

In physics, interference refers to the combined result of two or more wave trains travelling along intersecting or converging trajectories. The result is the result of adding the individual wave amplitudes at each place that is influenced by multiple waves.

Given: wavelength  = 50 mm = 50 × 10⁻⁴  m

the fringe spacing is = 80 cm = 0.80 m.

x = λD/d

d =  λD/x

= 50 × 10⁻⁴ × 1000/0.80 m

= 6.25 meter.

Hence,  the distance between the aerials  is 6.25 meter.

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Explanation:

Hydraulic systems use the pump to push hydraulic fluid through the system to create fluid power. The fluid passes through the valves and flows to the cylinder where the hydraulic energy converts back into mechanical energy. The valves help to direct the flow of the liquid and relieve pressure when needed

Explanation:

Minimum force means that the force should be applied at a 90° angle from the wrench.

40.0Nm / (0.30m) = 133.33N.

The mimumum force is 133.33N.

The aforementioned circumstances can result in the production of 0.119 moles of ammonia (NH3).

We must utilize the ideal gas law and the stoichiometry of the balanced chemical equation for the reaction between hydrogen (H2) and nitrogen (N2) to make ammonia in order to determine how many moles of ammonia (NH3) were produced.

Let's begin by formulating the reaction's balanced equation:

3H₂ + N₂ → 2NH₃

We can see from the equation that we produce 2 moles of ammonia for every 3 moles of hydrogen. As a result, the molar ratio of ammonia to hydrogen is 2:3.

We must convert the supplied parameters of 4.0 liters of hydrogen at 50.0 °C and 1.2 atm of pressure into moles in order to use the ideal gas law. The ideal gas law and the molar volume of an ideal gas at standard temperature and pressure (STP) may be combined using the equation shown below:

PV = nRT

Where:

The temperature must first be converted from Celsius to Kelvin:

T(K) = T(°C) + 273.15

T(K) = 50.0°C + 273.15 = 323.15 K

To solve for the number of moles (n), we may now rearrange the ideal gas law equation as follows:

n = PV / RT

n = (1.2 atm) * (4.0 L) / (0.0821 L·atm/(mol·K) * 323.15 K) ≈ 0.179 mol

Since ammonia and hydrogen have a 2:3 molar ratio, we can calculate the amount of ammonia created by multiplying (2/3) * 0.179 mol by 0.119 mol.

As a result, the circumstances allow for the production of 0.119 moles of ammonia.

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The load is inductive or capacitive depending on whether the imaginary part of the impedance (Z) is positive or negative. In this case, the imaginary part of Z is 60 Ω, which is positive. Therefore, the load is inductive.

The power factor (PF) can be determined by taking the cosine of the angle of the impedance. In this case, the angle is 30 degrees. So, the power factor is given by:

PF = cos(30°) = 0.866

Therefore, the power factor is 86.6%.

The power (P) can be calculated by multiplying the magnitude of voltage (V) with the magnitude of current (I) and then multiplying it by the power factor (PF). In this case, the magnitude of voltage is 1500√2 volts and the power factor is 0.866. Assuming the load is purely resistive, the current magnitude can be calculated using Ohm's law:

I = V / Z = 1500√2 ∠ 30° / (70 + j 60) = 17.32∠-18.44° A

Therefore, the power is:

P = |V| * |I| * PF = 1500√2 * 17.32 * 0.866 = 36722.86 watts (or 36.7 kilowatts)

The reactive power (Q) can be calculated by multiplying the magnitude of voltage (V) with the magnitude of current (I) and then multiplying it by the sine of the angle of the impedance. In this case, the angle is 30 degrees. So, the reactive power is:

Q = |V| * |I| * sin(30°) = 1500√2 * 17.32 * sin(30°) = 10000 VAR

The apparent power delivered to the load (S) can be calculated by multiplying the magnitude of voltage (V) with the magnitude of current (I). In this case, the apparent power is:

S = |V| * |I| = 1500√2 * 17.32 = 25985.08 volt-ampere (or 25.99 kilovolt-ampere)

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Answer:

i- testing testing,, 1 2 1 2

Answer:

?

Explanation:

Did it work how you wanted?

Answer:

What is NUCLEAR POWER?

➡️ is the use of nuclear reactions to produce electricity.

➡️ it can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions.

Hope it helps

Answer:

Hydrochloric acid and sodium hydroxide interact, resulting in salt and a release of heat. As we can see, the result of the interaction of two highly aggressive compounds is table salt and water – compounds that are ultimately harmless, even beneficial, to human beings.

Explanation:

Don't forget to mark me brainliest: )

thank you!!!!

Answer:

To calculate the work done by the teenager, we need to know the force applied and the distance moved.

Since we don't know the force applied, we can assume that it's equal to the weight of the teenager. The weight of the teenager can be calculated by multiplying their mass by the acceleration due to gravity, which is approximately 9.81 m/s^2:

weight = mass * acceleration due to gravity

weight = 46 kg * 9.81 m/s^2

weight = 451.26 N

The distance moved is equal to the height of 44 steps:

distance = height of 1 step * 44 steps

distance = 20 cm * 44

distance = 880 cm or 8.8 m

Now we can calculate the work done by the teenager using the formula:

work = force * distance * cos(theta)

where theta is the angle between the force and the direction of movement. Since the teenager is moving vertically upward, the angle theta is 0 degrees, and the cos(0) is equal to 1. Therefore, we can simplify the formula to:

work = force * distance

Plugging in the values we have calculated, we get:

work = 451.26 N * 8.8 m

work = 3977.488 J

Therefore, the work done by the teenager to get to your room is approximately 3977.5 joules.

The correct order of the formation of the solar system are:

A solar system consist of the sun and other planetary bodies revolving around the sun. Sun is the center of the energy where other planets derive their energies from.

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Answer:

LOL! couldnt be me either bestieeeee

Answer:

-_-

Explanation:

i dont know What was XD??

The other wavelength is 775 nm, since (5/4) times 620 nm is 775 nm.

we need to understand that the diffraction pattern of a single slit consists of a series of bright fringes (maxima) and dark fringes (minima) that are spaced apart by certain angles. The position of these fringes depends on the wavelength of the incident light and the width of the slit.

In this case, we are told that the fifth minimum of one wavelength component coincides with the fourth minimum of the pattern due to a wavelength of 620 nm. Let's call this wavelength λ1. We want to find the other wavelength, which we'll call λ2.
sinθ = mλ / d
For the fifth minimum of λ1, we have:
sinθ1 = 5λ1 / d
For the fourth minimum of λ2, we have:
sinθ2 = 4λ2 / d
sinθ1 = sinθ2
5λ1 / d = 4λ2 / d
λ2 = (5/4) λ1

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The mass of the cube is 0.65768 kg.

The density (d) of a substance is calculated by dividing its mass (m) by its volume (v). Mathematically, the density of the cube is given by: d = m/v

Where, d is density, m is mass and v is volume of the cube.Volume of cube is calculated using the formula:

Volume of cube = length³= (5.95 cm)³= 211.201375 cm³.

Thus, the volume of the cube is 211.201375 cm³.Using the formula of density; we have,

3.11 g/cm³ = m / 211.201375 cm³

We will solve this formula for m:m = d * v = 3.11 g/cm³ * 211.201375 cm³m = 657.68 g or 0.65768 kg (when rounded to 5 decimal places)

Therefore, the mass of the cube is 0.65768 kg.

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Answer:

a) 12614.4 m^3

b) 28.8 m

Explanation:

The complete question is

Four astronauts are in a spherical space station. (a) If, as is typical, each of them breathes about 500 cm^3 of air with each breath, approximately what volume of air (in cubic meters) do these astronauts breathe in a year? (b) What would the diameter (in meters) of the space station have to be to contain all this air?

The average breathing rate is 12 breaths per minute

there are 60 minutes x 24 hours x 365 days in a year = 525600 minutes in a year

if an average human takes 12 breath per minute, then in a year an average human take 12 x 525600 = 6307200 breath

For the four astronauts, the amount of breath = 4 x 6307200 = 25228800 breath in total.

The volume of air per breath = 500 cm^3

1 cm^3 = 10^-6 m^3

500 cm^3 = \(x\) m^3

\(x\) = 500 x 10^-6 = 5 x 10^-4 m^3

Therefore in a year, the volume of these astronauts breath in a year = 5 x 10^-4 x 25228800 = 12614.4 m^3

b) If the space station is spherical, the volume will be given as = \(\frac{4}{3} \pi r^3\)

where r is the radius of the space station

This volume of the space station must be able to contain all the volume of breath produced by the astronauts which is = 12614.4 m^3

Equating, we have

12614.4 = \(\frac{4}{3} \pi r^3\)

12614.4 = \(\frac{4}{3}*3.142*r^3\)

12614.4 = 4.1893\(r^{3}\)

\(r^{3}\) = 12614.4/4.1893 = 3011.1

r = \(\sqrt[3]{3011.1}\) = 14.4 m

diameter of the space station = 14.4 m x 2 =  28.8 m

Answer:

It is Germanium(Ge)

Explanation:

Answer:

b

Explanation:

Answer:

Gravitaitional pull

Explanation:

Guessing

The time taken by the boat to accelerate from zero to 90 km/hr over 1 km is 11.11 seconds, and the acceleration is 8.1 m/s2.

The problem has provided the initial speed of the boat as zero, and the final speed as 90 km/hr.

We need to find the time taken by the boat to accelerate from zero to 90 km/hr over 1 km.

We can use the formula of acceleration to solve this problem.

The formula is:

v = u + at

where, v is the final velocity

u is the initial velocity

a is the acceleration

t is the time taken

From the above formula, we can write:

90 = 0 + a * t

where acceleration is a, and time taken is t.

Therefore, a * t = 90...…..(1)

The boat has traveled 1 km, which is 1000 m.

We can use the formula of average speed to calculate acceleration.

The formula is:

v = d / t

where, v is the speed

d is the distance traveled

t is the time taken.

We can write this formula as:

t = d / v,

where distance traveled is d, and the speed is v.

Substituting the values in the above equation, we get:

t = 1000 / 90t = 11.11 seconds.

From equation 1, we get a = 90 / t,

substituting the value of t, we get:

a = 90 / 11.11

a = 8.1 m/s2

Therefore, the time taken by the boat to accelerate from zero to 90 km/hr over 1 km is 11.11 seconds, and the acceleration is 8.1 m/s2.

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The total resistance in the circuit is 144Ω, and the total current is approximately 0.694A.

To find the total resistance and total current in the given circuit, let's break down the steps:

1. Delta to Wye Transformation:

  - Identify the resistors in the delta configuration: 200Ω, 40Ω, and 120Ω.

  - Apply the delta to wye transformation to convert the resistors into a wye configuration:

    - R₁ = (Rb * Rc) / (Ra + Rb + Rc) = (40 * 120) / (200 + 40 + 120) = 16Ω

    - R₂ = (Ra * Rc) / (Ra + Rb + Rc) = (200 * 120) / (200 + 40 + 120) = 96Ω

    - R₃ = (Ra * Rb) / (Ra + Rb + Rc) = (200 * 40) / (200 + 40 + 120) = 32Ω

  - Replace the delta configuration with the wye configuration using the calculated values: R₁ = 16Ω, R₂ = 96Ω, R₃ = 32Ω.

2. Total Resistance Calculation:

  - The total resistance (RT) in the circuit is the sum of the individual resistances:

    - RT = R₁ + R₂ + R₃ = 16Ω + 96Ω + 32Ω = 144Ω.

3. Total Current Calculation:

  - The total current (I) can be calculated using Ohm's Law: I = V / RT, where V is the voltage across the circuit.

  - Given that the voltage (V) is 100V, the total current (I) is: I = 100V / 144Ω = 0.694A.

Therefore, the total resistance in the circuit is 144Ω, and the total current is approximately 0.694A.

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The molecular shape or molecular geometry of electron pair repulsion is determined by the no of electron pair present.

The lightest known stable subatomic particle is the electron. It has an equal negative charge to that of 1.602176634 coulombs, which is regarded as the fundamental unit of electric charge. Only 1/1,836 of a proton's mass, or 9.1093837015 1031 kg, is present in the rest mass of the electron.

As a result, compared to a proton or neutron, an electron is thought to be almost massless, and its matter is not taken into account when determining an atom's mass number.

The quantity of electron pairs in a molecule affects its form. Electron pair interactions are typically repulsive. Electron couples align themselves to reduce their attraction to one another. It is assumed that the valence, or outermost, electron shell, is spherical

Therefore, the molecular shape or molecular geometry of electron pair repulsion is determined by the no of electron pair present.

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Answer:

i think it is B

Explanation:

The first extrasolar planets were so surprising that they forced a change in our theory of planet formation because they were massive like Jupiter but very close to their host star.

Extrasolar planet, also known as exoplanet, any astronomical body located outside the solar system that orbits a star other than the Sun.

Historically, the majority of extrasolar planets discovered appear to have been massive planets orbiting extremely close to their host stars. Astronomers were surprised by these "hot Jupiters," because planetary evolution theories predicted that such large planets should form only at great distances from stars. However, as time passed, more planets of various types were discovered, and it is now clear that hot Jupiters are the absolute minority of extrasolar planets.

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Explanation:

fall at a faster velocity than what it was thrown! Hope this helps!