which planet will receive a radio signal that is redshifted and which planet receives a radio signal that is blueshifted respectively?

The displacement current in a parallel-plate capacitor with plate area of \(5 cm^2\) and plate separation of 3 mm having a voltage of \(50 sin 10't V\) applied to its plates, assuming ε = \(8.85x10^-^1^2 C^2 N^-^1 m^-^2\), is \(14.54 nA\).


The formula to find the displacement current \((I_d)\) in a parallel-plate capacitor is given as:

I_d = εA(dV/dt), where ε is the permittivity of free space, A is the area of the plates, d is the distance between the plates, and dV/dt is the rate of change of voltage with time. In this case, plate area (A) =\(5 cm^2\) = \(5 x 10^-^4 m^2\), plate separation (d) = \(3 mm\) = \(3 x 10^-^3 m\), voltage (V) = \(50 sin 10't V\).

The rate of change of voltage with time \((dV/dt) = 50 x 10 cos 10't V/s\)

Using the given value of ε = \(8.85 x 10^-^1^2 C^2 N^-^1 m^-^2\), the displacement current is calculated as:

\(I_d\) = \((8.85x10^-^1^2 C^2 N^-^1 m^-^2) x (5 × 10^-^4 m^2) x (50x10 cos 10't V/s) / (3 x 10^-^3 m)\)

= \(14.54 nA\) (approx)

Therefore, the displacement current in the given parallel-plate capacitor is \(14.54 nA\)

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Answer:

A) Variety of Living Things

Explanation:

Biodiversity is defined as the variety of life in the world or in a particular habitat or ecosystem.

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The statement that best explains why the temperatures at the equator are warmer than at the North Pole is "the sun shines most directly on the equator and spreads out over a relatively small area."

This is due to the fact that the Earth is a sphere, and the equator is the part of the surface that is closest to the sun. Therefore, solar radiation from the sun strikes the equator more directly than at the poles, where the sunlight strikes at an angle, and over a larger surface area.

When sunlight hits the Earth's atmosphere, it is absorbed, scattered, and reflected, but the amount of energy reaching the surface of the Earth depends on the angle of incidence. At the equator, the angle of incidence is nearly perpendicular to the surface of the Earth, meaning the sunlight is more concentrated over a smaller area, which results in more heat being absorbed by the Earth's surface, leading to warmer temperatures.

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(a) The normal force on the sleigh is 596.36 N.

(b) The magnitude and direction of acceleration of the sleigh is 3.2 m/s² upwards.

The given parameters;

The normal force on the sleigh is calculated as follows;

\(F_n = mg \times cos(\theta)\\\\F_n = 63 \times 9.8 \times cos(15)\\\\F_n = 596.36 \ N\)

The magnitude and direction of acceleration of the sleigh is calculated as follows;

\(\Sigma F= ma\\\\F - mgsin(\theta) - F_f = ma\\\\F - mgsin(\theta) - \mu F_n = ma\\\\510\ - \ 63 \times 9.8 \times sin15 \ -\ 0.25\times 596.36 = 63a\\\\201 .11 = 63a\\\\a = \frac{201.11}{63} \\\\a = 3.2 \ m/s^2 \ upwards\)

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a) The resistors in series have the same current.

b. The current through the resistor determines how much power passes through it

a) A succession of resistors will share the same electricity. Therefore, the current going through light A is the same as the sum of the currents going through bulbs B and C. The brightness of light A is greater than that of bulbs C and B because the current is higher.

(b) When a wire is connected between 1 and 2, then the bulbs B and C are short circuited and no current pass through them. Then more current passes through the bulb A.

Bulb A: glows brighter ( due to more current )

Bulb B: go out ( due to no current )

Bulb C: go out ( due to no current )

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An additional pressure equivalent to a height of 100 m is needed to pump the water from the bottom tank to the top tank if there is no friction. The minimum power required is around 6880 kg * \(m^2/sec^3.\)

To calculate the minimum power required when accounting for friction in pumping water between tanks, we need to consider the additional pressure required and the flow rate.

Given:

Additional pressure due to friction = 100 m

Let's assume the flow rate is Q (in cubic meters per second).

The power (P) required to pump water can be calculated using the formula:

P = Q * ρ * g * H

where ρ is the density of water and g is the acceleration due to gravity.

We can express the additional pressure (ΔP) in terms of the height of the water column:

ΔP = ρ * g * Δh

Solving for Δh, we find:

Δh = ΔP / (ρ * g)

Substituting the given values:

P = \((0.6 m^3/sec * 8.5 m * 1000 kg/m^3) / 0.75 + (0.6 m^3/sec * 100 m) / 0.75\)

P = \((5100 kg * m^2/sec^3) / 0.75 + (60 m^2/sec^2) / 0.75\)

P = \(6800 kg * m^2/sec^3 + 80 m^2/sec^2\)

P = \(6880 kg * m^2/sec^3\)

Therefore, the minimum power required, accounting for friction, is approximately \(6880 kg * m^2/sec^3.\)

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The statement "Stars vary greatly in temperature" (option A) is true about stars.

Stars are massive, luminous spheres of plasma held together by their own gravity. They are the fundamental building blocks of the universe and are responsible for the creation of all heavy elements and the energy that powers all life on Earth.

Stars can have a wide range of temperatures, from as low as 2,000 Kelvin (K) for cooler red dwarfs to over 30,000 K for hotter blue giants. The temperature of a star is closely related to its color, with cooler stars appearing reddish in color and hotter stars appearing bluish in color.

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Complete question:

Which of the following statements about stars is true?

A. Stars vary greatly in temperature.

B. Stars rarely differ in temperature.

C. All stars are the same temperature.

D. none of these

Answer:

ΔE = 1.031 eV

Explanation:

For this exercise let's calculate the energy of the photons using Planck's equation

          E = h f

wavelength and frequency are related

         c = λ f

         f = c /λ

let's substitute

         E = h c /λ

let's calculate

         E = 6.63 10⁻³⁴ 3 10⁸/1064 10⁻⁹

         E = 1.869 10⁻¹⁹ J

let's reduce to eV

         E = 1.869 10⁻¹⁹ J (1 eV / 1.6 10⁻¹⁹ J)

        E = 1.168 eV

therefore the electron affinity is

         ΔE = E - 0.137

         ΔE = 1.168 - 0.137

         ΔE = 1.031 eV

The electron affinity of thulium in units of electron volts per atom is; ΔE ≈ 1.031 eV

From Planck's equation, we can find the energy of the photons when given wavelength as;

E = hc/λ

Where;

h is Planck's constant = 6.626 × 10⁻³⁴ J.s

c is speed of light = 3 × 10⁸ m/s

λ is wavelength

We are given;

wavelength; λ = 1064 nm = 1064 × 10⁻⁹ m

Thus;

E = (6.626 × 10⁻³⁴ × 3 × 10⁸)/(1064 × 10⁻⁹)

E2 = 1.868 × 10⁻¹⁹ J

Converting to eV gives;

E2 = (1.868 × 10⁻¹⁹)/(1.6 × 10⁻¹⁹)

E2 = 1.1675 eV

We are given E1 = 0.137 eV.

Now, electron affinity is simply change in energy. Thus;

ΔE = 1.1675 - 0.137

ΔE ≈ 1.031 eV

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Answer:it will take 10 hours

Explanation: The way we get this answer is if the boat travels 200 miles at 20 mph that means that every 20 miles the boat traveled an hour would pass. Using this we can see that 20 fits into 200, 10 times, meaning that the time it would take to travel would be 10 hours.

The time it will take to travel 200 miles is 10 seconds

The calculation can be done as follows

= 200/20

= 10 seconds

Hence the amount of time it will take the speed boat to travel 200 miles is 10 seconds

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Answer:

8.85m/s

Explanation:

The potential energy the watermelon held before dropping is Ep=mgh=2*9.8*4=78.4J.

When it strikes the ground, all of its Ep will transfer into Ek, so 1/2*m*v^2=78.4.

We already knew that m=2, so insert that in, we will get the V^2=78.4 m/s, V=8.85 m/s

Fracking has become widely used in the US, raising worries about its effects on the environment and public health. Large volumes of wastewater are produced, along with greenhouse gases like methane, hazardous air pollution, and noise.

Fracking, also known as hydraulic fracturing, is a technique for obtaining gas and oil through shale rock. With the help of a high-pressure injection of water, sand, and chemicals into bedrock, gas and oil can flow into a well and be collected for sale.

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Explain any environmental issue that arose from fluid technology.

The eight planets in our solar system, including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, are on the ecliptic plane.

The ecliptic plane is defined as the imaginary plane in space that contains Earth's orbit around the sun. Since all of the planets in our solar system orbit the sun, they are also on this same plane. The planets' orbits are not perfect circles, but are rather slightly elliptical, meaning they can vary slightly from the ecliptic plane.

However, in general, the planets stay relatively close to the ecliptic plane as they orbit the sun. This is significant because it allows astronomers to make predictions and observations about the planets' movements and positions in the sky.

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Answer:Δx=v0t + 1/2 at 2

The types of energy that move through the system are as follows: potential energy, kinetic energy, mechanical energy, and electrical energy.The water stored in the dams contains potential energy.

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Explanation:

It obeys the inverse square law.

It is always attractive in nature.

It is a long range force. ...

The graviton is the field particle of gravitational force.

Answer:

Gravitational force−Properties:

(1) It is a universal attractive force. It is directly proportional to the product of the masses of the two bodies.

(2) It obey inverse square law.

(3) It is the weakest force known in nature.

If the Sun takes 233 million years to orbit once around the Milky Way, how many orbits had the Sun made when it was 1.1 billion years old

To determine how many orbits the Sun had made when it was 1.1 billion years old,

1. Convert 1.1 billion years to million years: 1.1 billion years = 1100 million years.
2. Divide the age of the Sun by the time it takes to complete one orbit around the Milky Way: 1100 million years / 233 million years = 4.72 orbits.

Since the Sun cannot complete a partial orbit, it had made 4 orbits around the Milky Way when it was 1.1 billion years old.

Regarding how many times the Sun has orbited around the Milky Way since it first formed, we need to know the current age of the Sun. The Sun is approximately 4.6 billion years old.

Following the same steps as above:
1. Convert 4.6 billion years to million years: 4.6 billion years = 4600 million years.
2. Divide the age of the Sun by the time it takes to complete one orbit around the Milky Way: 4600 million years / 233 million years = 19.74 orbits.

Similar to the previous case, the Sun cannot complete a partial orbit, so it has made 19 orbits around the Milky Way since it first formed.

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Answer:

i think its second law of motion.

Explanation:

Answer:

it’s the second law

Explanation:

If an early frost destroys most of the apple crop, the equilibrium price of an apple is likely to increase.

An early frost that damages a significant portion of the apple crop would result in a decrease in the supply of apples. When the supply decreases, while demand remains constant or even increases, it creates a situation where the quantity demanded exceeds the quantity supplied. This imbalance in the market typically leads to an increase in the equilibrium price of apples.

With a reduced supply of apples, consumers would still desire to purchase them at the same or even higher quantities, especially if there are no close substitutes available. As a result, buyers may be willing to pay a higher price to secure the limited supply of apples. This increased demand coupled with the decreased supply causes the equilibrium price to rise.

Moreover, the extent of the increase in price will depend on the severity of the frost damage and the elasticity of demand. If the damage is severe and there are no alternative sources of apples, the price increase may be significant. However, if there are other regions or countries with unaffected apple crops that can fulfill the demand, the price increase may be relatively moderate.

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The correct answer is (B) No because the box of greater mass requires more force to reach the same acceleration.

According to Newton's second law of motion, the force exerted on an object is directly proportional to its mass and acceleration (F = ma). Therefore, when the same force is applied to two objects with different masses, the object with a greater mass will experience a smaller acceleration compared to the object with a smaller mass.

In this scenario, although both boxes appear to float at rest in the orbiting space station, they still have different masses.

Therefore, applying the same force to both boxes will result in different accelerations. The box with greater mass will require more force to achieve the same acceleration as the box with a smaller mass.

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The magnetic field at a distance of 7.1 cm from the jumper cable is 0.034 T.

We can use the Biot-Savart law to calculate the magnetic field at a distance of 7.1 cm from the jumper cable. The Biot-Savart law states that the magnetic field, B, at a point due to a current-carrying wire is given by:

B =\((μ₀/4π) * (I * dl x r) / r^2\)

where μ₀ is the permeability of free space, I is the current in the wire, dl is a small length element of the wire, r is the distance from the wire, and x represents the cross product.

Assuming the jumper cable is straight, we can simplify the formula to:

B = (μ₀/4π) * (I / r)

Substituting the given values, we get:

B = \((4π * 10^-7 T*m/A) * (49 A / 0.071 m)\)

Simplifying, we get:

B = 0.034 T

Therefore, the magnetic field at a distance of 7.1 cm from the jumper cable is 0.034 T.

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Answer:

Similitudes y diferencias entre los músculos de los peces y los de los animales terrestres.

Explicación:

Los músculos de los peces se diferencian del músculo de los animales terrestres porque los peces tienen músculos rojos, rosados y blancos. También tienen tejido muscular de pescado que se compone de músculo estriado al igual que el músculo de los animales terrestres. La mayor parte del tejido muscular de los peces es de color blanco, pero muchos peces también tienen una cierta cantidad de tejido oscuro de color marrón o rojizo. El músculo oscuro se encuentra justo debajo de la piel a lo largo del costado del cuerpo.

Answer:

Object A

Explanation:

Mass of an object= Volume × denstiy

Object having higher density will have greater mass

Next,

According to second law of Newton

Force= mass× acceleration

Force= mass× change is velocity/ time

For an equal amount of time, if change in velocity is equal then object with higher mass will have higher force. Hence, greater density, greater is mass and larger is the force.

The density of the given substance is 8.9 g/cm³. The given substance has a volume of 10.0 cm³ and a mass of 89 grams.

We are to find the density of the given substance. The formula for density is:density = mass/volumeWe can now substitute the given values into the formula and get: density = mass/volume=>density = 89 g/10.0 cm³We simplify this expression as shown below: density = 8.9 g/cm³

Therefore, the density of the substance is 8.9 g/cm³.The response to this question has used only 100 words. To give a more detailed response, we can provide the following explanation:Explanation:When we want to find the density of a substance, we need to know its mass and volume. Density is the ratio of the mass of a substance to its volume, and it is expressed in grams per cubic centimeter (g/cm³).

The formula for density is: density = mass/volume Where density is in g/cm³, mass is in grams (g), and volume is in cubic centimeters (cm³).To find the density of the given substance, we have been given its mass and volume. We simply substitute these values into the formula and simplify to get the density. Therefore, the density of the given substance is 8.9 g/cm³.

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A Personal Water Purification System (PWPS) is a portable water filtration system designed to purify water for drinking purposes. It is a system that is designed to provide clean drinking water to people who are in areas where clean water is not readily available.

The operational requirements of a PWPS are designed to define the operational effectiveness of the system, which can be measured in terms of measures of effectiveness (MoEs) and measures of performance (MoPs).MoEs are a set of parameters that define the effectiveness of a system in achieving its goals, while MoPs are a set of parameters that define the performance of a system in achieving its goals. The MoEs for a PWPS may include factors such as the amount of water that can be purified, the time it takes to purify the water, and the effectiveness of the system in removing contaminants from the water.

The MoPs may include factors such as the size and weight of the system, the cost of the system, and the ease of use of the system. In order to meet the identified need for clean drinking water in areas where it is not readily available, a PWPS should have the following capabilities: the ability to purify water quickly and effectively, the ability to remove a wide range of contaminants from the water, the ability to be easily transported and stored, and the ability to be used by people with little or no training. In addition, the system should be cost-effective and easy to maintain, with replacement parts readily available if needed. By meeting these requirements, a PWPS can provide a reliable source of clean drinking water to people in need.

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The force F1 is equal and opposite to the downward force thus, F1 is equal to 60 N. The force F2 is inclined to 30 ° from leftward force and it is equal to 38.97 N in magnitude.

Force is an external agent acting on a body to deform it or to change its state of motion or rest. Force is a vector quantity and it is characterised by its magnitude and direction.

If two forces acting on a body from the same directions, then the net force will be the sum of these two forces. If they are acting from opposite directions, they will cancel each other in magnitude.

The force F1 is equal and opposite to the force acting downward. Thus its magnitude is 60 N. The force F2 is inclined to 30 ° from horizontal direction.

F2 = 45 cos 30 = 38.9 N.

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Using the appropriate arithmetic operation, the amount of potatoes and cabbage require for the voyage are 19998 and 26664 respectively.

Total number of passengers = (47 + 32 + 22) = 101

1.)

If each person gets 3 potatoes per day :

Number of potatoes needed per day = (3×101) = 303

Number of potatoes needed for entire voyage = (303 × 66) = 19998 potatoes.

2.)

If each person gets 4 cabbage per day :

Number of cabbage needed per day = (4×101) = 404

Number of cabbage needed for entire voyage = (404 × 66) = 26664 cabbages.

Hence, the number of cabbage needed for the voyage would be 26664 cabbages.

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Answer:

it's true I'm pretty sure

Answer:

the answer is true.I'm sure