The resolution of radio telescopes suffers greatly from the large wavelengths of the light they are observing. What can be done to a radio telescope to improve its angular resolution?.

The equation for energy in the context of fluid dynamics, specifically in Computational Fluid Dynamics (CFD), is typically represented by the conservation of energy equation, also known as the energy equation or the first law of thermodynamics. The equation can be expressed as:

ρ * (du/dt + u * ∇u) = -∇p + ∇⋅(μ * (∇u + (∇u)^T)) + ρ * g + Q

where:

ρ is the density of the fluid

u is the velocity vector

t is time

∇u represents the gradient of velocity

p is the pressure

μ is the dynamic viscosity

g is the gravitational acceleration vector

Q represents any external heat source/sink

The physical meaning of energy in CFD is the total energy of the fluid system, which includes kinetic energy (associated with the motion of the fluid), potential energy (associated with the elevation of the fluid due to gravity), and internal energy (associated with the fluid's temperature and pressure). The energy equation describes how this total energy is conserved and transformed within the fluid system.

In CFD simulations, the energy equation plays a crucial role in modeling the energy transfer, heat transfer, and flow characteristics within the fluid. It helps in understanding how energy is distributed, dissipated, and exchanged within the fluid domain. By solving the energy equation numerically, CFD simulations can predict temperature profiles, flow patterns, heat transfer rates, and other important parameters that are essential for various engineering applications, such as designing efficient cooling systems, optimizing combustion processes, and analyzing thermal behavior in fluid flows.

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There are several objects that move in space.

There are many scenarios that demonstrate the motion of objects in space. Here are some examples:

Planetary motion: The motion of planets in the solar system is a classic example of objects in space in motion. The planets orbit around the sun in elliptical paths, with their motion governed by the gravitational pull of the sun.

Satellites: Satellites are artificial objects that are launched into space to perform various tasks, such as communication, navigation, and weather monitoring. The motion of satellites is determined by the gravitational forces of the Earth and other celestial bodies.

Asteroids and comets: Asteroids and comets are small, rocky or icy objects that orbit the sun. Their motion is also governed by the gravitational forces of the sun and other celestial bodies, and their orbits can be highly elliptical.

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Answer:

The correct option is;

2. Some of the laws that govern nature cannot be detected by scientists

Explanation:

The statement "some of the laws that govern nature cannot be detected by scientists" is a scientific claim because of the concept of the laws or the theories truth or realism

The art word 'scientific realism' refers to the world that cannot be observed with our natural given senses without an aid.

Ontic realism refers to the statement that the world that cannot be observed are independent from the entities that are in possession of minds, ideas, language conception

Therefore, according to the ontic realist consider the world  to be made of unobservable structures and units that exist independent of the man.

The magnitude of the braking force is given by:

Replace the values of m=339kg, v_f=3.25m/s, v_0=27.9m/s and d=5.19m to find the magnitude of the braking force:

The minus sign accounts for the fact that the car is decelerating.

Therefore, the magnitude of the braking force is approximately 25,077N.

We are unable to directly determine the work performed by the engine because the distance over which the force acts is unknown.

This indicates that the effort expended to increase the car's speed will be equivalent to the change in kinetic energy of the vehicle. Thus, 30 kJ of effort must be performed.

The work W is equal to the force f times the distance d, or W = fd, to mathematically describe this idea.

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Answer:

Do you have a list of all the energies?

Bomb exploding would use chemical reaction (ammonium nitrate for ex), then thermal energy from heat generated, then kinetic energy from the blast overpressure/schockwave.

Answer:

d = 4.44 m

Explanation:

Given that,

The moment of force on a door = 10 N-m

The applied force, F = 2.25 N

We need to find the distance of the handle. The moment of force is given by :

\(\tau=F\times r\)

Where

r is the distance of the handle.

\(r=\dfrac{\tau}{F}\\\\r=\dfrac{10}{2.25}\\\\r=4.44\ m\)

So, the required distance is equal to 4.44 m.

Answer:

0.51 %

Explanation:

Calculated value of the amount of oxygen is 3.9 g

Theoretical value of amount of oxygen is 3.92 g

We need to find the percent error in this experiment. It is given by the difference in theoretical and Calculated value divided by theoretical and multiplying it by 100. So,

\(E=\dfrac{3.92-3.9}{3.92}\times 100\\\\E=0.51\%\)

So, the percentage error is 0.51 %.

Answer:

When sentences run consecutively, the defendant serves them back to back. When they run concurrently, the defendant serves them at the same time.

Explanation:

Answer:

Protons and neutrons are composed of two types: up quarks and down quarks. Each up quark has a charge of +2/3. Each down quark has a charge of -1/3. The sum of the charges of quarks that make up a nuclear particle determines its electrical charge.

Answer:

Quarks

Explanation:

When we break down protons and neutrons, scientists named the building blocks of atoms "quarks". Quarks are considered in the basic basic elementary particles of the universe.

The option that describe solubility in this question is the ability of one substance to dissolve in another

Therefore, solubility involves one substance dissolving in another.

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Answer B.

Explanation

B. the ability of one substance to dissolve in another 

i got 100% on this question for edge 2023

i hope this answers is helpful.

Have a great day!

ANSWER

Q = 5303.95 kJ

EXPLANATION

We are looking for the energy needed to evaporate 2.35kg of water. Since the water is already at evaporation temperature, which is 100°C, we just have to use latent heat. Also, we just want the steam to be at 100°C, so we don't need to find the energy to change its temperature.

The energy needed to evaporate water of mass m is:

L is the latent heat of the material, in this case water. There are two latent heats, one of fusion and one of vaporization. We have to use the second one, which for water is approximately 2257 kJ/kg

Therefore, to boil 2.35 kg of water at 100°C to steam at 100°C we need:

Answer:

私は知らない

Explanation:

a. Star A

b. Can't tell

QUESTION 3) a. Can't tell

QUESTION 4) a. Star A

QUESTION 5) b. Star B

QUESTION 6 )The brightest set of stars would best represent the relative distribution in a sample of all stars in our Galaxy.

a) In scenario a, where Star A is red and Star B is blue, we can tell that Star A is more luminous. Generally, blue stars are hotter and more luminous than red stars. Therefore, Star B being blue implies it has a higher luminosity compared to Star A.

b) In scenario b, no information is provided about the colors or sizes of Star A and Star B. Without this information, we cannot determine which star is more luminous.

3) In scenario a, where Star A and Star B are the same color but Star A is larger than Star B, we cannot determine which star is more luminous based solely on their sizes and colors. Luminosity depends on factors such as surface temperature and stellar composition, which are not provided

4) In scenario a, where Star A is larger than Star B and Star A is blue while Star B is red, we can tell that Star A is more luminous. As mentioned before, blue stars are generally hotter and more luminous than red stars. Additionally, the larger size of Star A suggests it has a higher luminosity.

5) In scenario b, where Star A is larger than Star B and Star A is red while Star B is blue, we can tell that Star B is more luminous. Blue stars are hotter and more luminous than red stars, so Star B being blue implies it has a higher luminosity. Additionally, the larger size of Star A does not necessarily mean it is more luminous in this case.

The brightest set of stars would best represent the relative distribution in a sample of all stars in our Galaxy.

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\(X=150m/s * 4.518s =677.63m\) far short of the target  it will drop the package.

First we can find the total time in order to reach the ground using the following kinematic formula:

\(y_{f} =y_{i}+v_{iy}+ \frac{1}{2} gt^{2}\)

And replacing we have:

\(-100 =0+0- \frac{1}{2} (9.8)t^{2}\)

And solving for t we got:

\(t=\sqrt{ \frac{2* (-100)}{-9.8} }=4.518 s\)

And now we can find the final distance on the x axis using the formula:

\(D = Vxt\)

The velocity on x not changes and is the same plane speed \(Vx=150m/s\) , if we replace we got:

\(X=150m/s * 4.518s =677.63m\)

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Answer:

When viewed from above, the current in the coil should point towards the top-right corner of the picture.

Explanation:

The current in this coil have only two possible directions: clockwise or counter-clockwise. However, since the diagram shows the coil from above, not from a cross-section, just saying clockwise or counter-clockwise might be ambiguous. The statement that the current is directed towards the top-right corner of the picture is equivalent to saying that when viewed from the lower-right corner of this diagram, the current in the coil is moving clockwise.

Note that at the center of this picture, the current is parallel to the magnetic field- there will be no force on the coil at that position. On the other hand, (also when viewed from above,) at the top-right corner and the lower-left corner of the coil, the current in the coil will be perpendicular to the magnetic field. That's where the force on the coil will be the strongest.

With that in mind, apply the right-hand rule to find the direction of the force on the coil in each of the two possibilities.

Assume that when viewed from above, the current is flowing towards the top-right corner of the picture. Consider the wire near the top-right corner of this coil (as viewed above on this picture.) The current will be going into the picture into the magnetic field. By the right-hand rule, the current on the wire near that point should be pointing towards the bottom of this picture. (Point fingers on the right hand in the direction of the current \(I\). Rotate the right hand such that when curling the fingers, they point in the direction of the magnetic field \(B\). The direction of the right thumb should now point in the direction of the force on the wire \(F\).)

Based on the same assumption, the current in the wires near the bottom left corner of this coil will be pointing out of the picture. By the right hand rule, the magnetic force on the coil in that region should be pointing towards the top of this picture. Combing these two forces, the coil would indeed be rotating around the center of this picture in the direction shown in the diagram.

It can also be shown that if the current points towards the bottom left corner of the picture when viewed from above, the coil will be rotating about the center of this picture in the opposite direction.

The statement "It takes less and less time to fuse heavier and heavier elements inside a high mass star" is true because of the increasing temperature and pressure required for fusion to occur as heavier elements are formed.

Inside a high mass star, nuclear fusion occurs in the core, where temperatures and pressures are high enough for hydrogen atoms to combine and form helium. As the star runs out of hydrogen fuel, the core contracts and heats up, allowing helium atoms to fuse into heavier elements like carbon and oxygen. This process continues until the core reaches a temperature of about 100 million Kelvin, at which point the fusion of heavier elements like silicon and iron can occur.

The fusion of heavier elements releases less energy than the fusion of lighter elements, which means that more energy is needed to sustain the fusion process. As a result, it takes less and less time to fuse heavier and heavier elements inside a high mass star. This is because the star's core becomes smaller and denser as heavier elements are formed, increasing the temperature and pressure needed for fusion to occur.

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Answer:

A.) a proton and an electron

Answer:

C

Explanation:

the answer is a posotive and a negative ion

Answer:

(-3, -3√3)

Explanation:

To convert from polar coordinate to rectangular coordinate, first you have to know these two equations:

\(\displaystyle{x=r\cos \theta}\\\displaystyle{y=r\sin \theta}\)

We know that (x,y) is in rectangular coordinate form while (r,θ) is in polar coordinate form.

Therefore, substitute r = 6 and θ = 240° in both equations:

\(\displaystyle{x=6\cos 240^{\circ}}\\\displaystyle{y=6\sin 240^{\circ}}\)

After evaluating, you'll get:

\(\displaystyle{x=-3}\\\displaystye{y=-3\sqrt{3}}\)

Therefore, substitute x and y in rectangular coordinate form - hence, the answer is (-3, -3√3)

During waxing gibbous phase of the Moon, the Moon appears to be more than half illuminated but less than fully illuminated. At this phase, the Moon is positioned between first quarter and full moon phases.

The position of the Moon and the Earth during a waxing gibbous phase can be described as follows:

The Moon is located on the opposite side of the Earth from the Sun, and it is moving towards the full moon phase.

The Earth is located between the Moon and the Sun, with the Sun's light illuminating the near side of the Moon.

From the perspective of an observer on Earth, the Moon appears to be getting larger and brighter as it moves towards the full moon phase. The waxing gibbous phase is an important period for lunar observations, as the illuminated portion of the Moon provides ample opportunity to observe its surface features with a telescope.

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The image A shows the direction of the transfer of heat from the ice to the walls of the freezer.

As we approach the question that we here, the first law of thermodynamics would come to our minds, we know that energy can not be created nor destroyed but we can be able  to convert the energy from one form to the other.

In this case, we know that the temperature of the walls of the refrigerator is about  −10°C while the ice is at a temperature of about  0°C. This means that the ice would have a temperature that is higher and then the walls of the fridge.

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A common activity like cooking a meal can use many natural Ingredients

Ingredients are substances combined to make a particular mixture such as a meal. most of the ingredients used for the preparation of a meal are sourced naturally.

In cooking different recipes of a meal the use of specific ingredients for each recipe differentiates the recipes.

Therefore we can conclude that cooking a meal requires the use of natural ingredients.

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The angle between the electric field and the axis of the polarizing filter is approximately 55.26 degrees.

To determine the angle between the electric field and the axis of the polarizing filter, we need to consider Malus's Law, which relates the intensity of polarized light passing through a polarizing filter to the angle between the electric field and the transmission axis of the filter.

Malus's Law states that the transmitted intensity (I) of polarized light through a polarizing filter is proportional to the square of the cosine of the angle (θ) between the electric field and the transmission axis of the filter:

I = I₀ * cos²(θ)

Where I₀ is the initial intensity of the polarized light.

In this case, we are given that only 32.0% of the intensity of the light wave passes through the filter. We can express this as a fraction of the initial intensity:

I/I₀ = 0.320

Substituting this into Malus's Law, we have:

0.320 = cos²(θ)

To find θ, we need to take the square root of both sides of the equation:

√0.320 = cos(θ)

Using a calculator, we find:

cos(θ) ≈ 0.5657

To determine the angle θ, we can take the inverse cosine (cos⁻¹) of both sides of the equation:

θ ≈ cos⁻¹(0.5657)

Using a calculator, we find:

θ ≈ 55.26 degrees

Therefore, the angle between the electric field and the axis of the polarizing filter is approximately 55.26 degrees.

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Based on the given information, a man weighing 800 N is standing on two bathroom scales in such a way that his weight is distributed evenly over both scales. This means that each scale is bearing half of his weight, which is 400 N.

Therefore, the reading on each scale is 400 N.

It is important to note that if the weight distribution was not even, the readings on the scales would be different. For example, if one scale was bearing more weight than the other, the reading on that scale would be higher than the other scale.

Additionally, if the two scales were not calibrated equally, their readings would also be different. However, in this scenario, we can assume that the two scales are calibrated equally since the weight is distributed evenly.

Therefore, the readings on the two bathroom scales in this scenario would be 400 N each.

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Answer:

7. 20,000,000 mL.

8. 8,000 m.

9. 120,000 secs.

10. 4

Explanation:

7. Determination of the volume in millilitres (mL)

Volume in litre (L) = 20,000 L

Volume in millilitres (mL) =..?

The volume in mL can be obtained as follow:

1 L = 1,000 mL

Therefore,

20,000 L = 20,000 x 1,000 = 20,000,000 mL.

Therefore, 20,000 L is equivalent to 20,000,000 mL.

8. Determination of the distance in metre (m)

Distance in mile = 5 mile

Distance in metre =?

First, we shall convert from mile to kilometre.

This can be done as follow:

1 mile = 1.6 km

Therefore,

5 mile = 5 x 1.6 = 8 km

Finally, we shall convert 8 km to metre (m).

This is illustrated below:

1 km = 1,000 m

Therefore,

8 km = 8 x 1,000 = 8,000 m

Therefore, 5 miles is equivalent to 8,000 m.

9. Determination of the time in seconds.

Time = 400 minutes for 5 days.

First, we shall convert 400 mins to hour.

This is illustrated below:

60 minutes = 1 hour

Therefore,

400 mins = 400/60 = 20/3 hours

The time (hours) is 20/3 hours in 1 day.

Therefore, the time (hours) in 5 days will be = 20/3 x 5 = 100/3 hours.

Next, we shall convert 100/3 hours to minutes.

This is illustrated below:

1 hour = 60 minutes

Therefore,

100/3 hours = 100/3 x 60 = 2000 mins

Finally, we shall convert 2000 mins to seconds.

This is illustrated below:

1 mins = 60 secs

2000 mins = 2000 x 60 = 120,000 secs.

Therefore, the time is 120,000 secs.

10. Determination of the number of significant figures.

To obtain the significant figures of a number, we simply count all the numbers available.

Therefore, the number of significant figures for 9876 is 4.

Answer:

The possibility of Adenine=40% and Thymine=60% is only in single stranded DNA molecule. In the question, the DNA sample referred is a single stranded DNA. If guanine=10% as guanine will always pair with cytosine, i.e.cytosine is also 10% then adenine and thymine accounts 80% as adenine will always pair with thymine.

A molecule of DNA cannot contain 60% thymine because this amount will surpass 100% in consideration of its complementary base.

DNA or deoxyribonucleic acid is a biological molecule that stores genetic information in living cells.

DNA is a double stranded molecule that consists of nucleotide bases as follows:

According to Chargaff in his rule, the amount of adenine & thymine and guanine & cytosine in a DNA molecule is the same, which must equal 100% overall.

Therefore, if thymine is 60% in the DNA, adenine will also be 60%, which in total has already surpassed 100% without adding the other two bases.

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Answer:

I hope this helps if not I am sorry good luck

Explanation:

The food of the foxes is the voles and if the their population went down of course the foxes would too if the voles went extinct what would the foxes eat surley they would die since their food source is shortened .

Answer:

4.5 because just do the math and its 4.5

Answer:

Data from a cross-sectional study or survey might need to incorporate weights or design effects in the analysis.The analysis plan should specify which variables are most

Explanation:

Explanation:

For example, scientists on a ship may examine SONAR data collected in real-time to determine the shape of the seafloor (Fig 2.7 A). ... Biologists might graph the number of box jellyfish over time and compare these data to the phases of the moon to look for patterns (Fig 2.7 B).