in the original model for the formation of planets by accretion, one of the main problems is that the formation of neptune group of answer choices takes longer than the age of the solar system is hindered by resonances with jupiter happens too quickly where it is located results in a planet that is too large

If the amount demand of a product changes more than proportionally as its price rises or falls, then it is said to be elastic.

The more replacements there are for an item, more elastic the good is, according to definition of an elastic good, which is where change in price results in a large movement in demand. Price elasticity of demand is determined by dividing percentage change in quantity required by the percentage change in price.

Products like cars, appliances, and luxury items that are rarely purchased are examples of elastic commodities. In the event that the cost of these products is momentarily high, consumers may decide to put off buying.

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The jovian planets in our solar system include Jupiter, Saturn, Uranus, and Neptune. These gas giants are distinct from the terrestrial planets like Mercury, Venus, Earth, and Mars.

Jovian planets, namely Jupiter, Saturn, Uranus, and Neptune, are characterized by their composition and physical properties. They are primarily composed of gases and lack a solid surface. Jovian planets are much larger in size compared to the terrestrial planets.

They possess thick atmospheres with swirling cloud formations and dynamic weather systems. These gas giants also have a significant number of moons and are accompanied by planetary rings made up of dust and ice particles.

Jovian planets are located farther away from the Sun and have lower densities compared to the terrestrial planets. Their unique characteristics distinguish them from the rocky, inner planets like Mercury, Venus, Earth, and Mars.

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The change in kinetic energy of the system of the three spheres as a result of the collision is -0.145 J

Kinetic energy of a system is the energy the system has due to the motion of the system.

Part of the question includes: Mass of sphere A = 0.020 kg

Velocity of A = 1.50 m/s in the -ve x-direction

Mass of B = 0.030 kg

Velocity of B = 0.50 m/s in the direction South 30° West

Mass of C = 0.050 kg

The spheres stick together after collision

Part A: The resultant velocity of the spheres = 0.50 m/s in the +ve x-direction:

Which gives: Velocity of A = -1.5·i

Velocity of B = -0.5×cos(60°)·i - 0.5×sin(60°)·j

Resultant velocity = 0.50·i

Which gives: \(\overset{\rightharpoonup}{v}_C\) = 0.50·i - (-0.5×cos(60°)·i - 0.5×sin(60°)·j -1.5·i) = \(\dfrac{9}{4} \cdot \mathbf{i}+\dfrac{\sqrt{3} }{4} \cdot \mathbf{j}\)

The initial kinetic energy of the system before collision is therefore:

K.E. = 0.5×m×v²

\(K.E._A =0.5\times 0.02 \times 1.5^2 = 0.0225\)

\(K.E._B =0.5\times 0.03 \times 0.5^2 = 0.00375\)

The magnitude of the velocity of C = \(|\overset{\rightharpoonup}{v}_C|=\sqrt{\left(\dfrac{9}{4} \right)^2+\left(\dfrac{\sqrt{3} }{4} \right)^2} = \dfrac{\sqrt{21} }{2}\)\(K.E._C=0.5\times 0.05\times \left( \dfrac{\sqrt{21} }{2}\right)^2= 0.13125\)

The initial energy in the system, K.E.₁ = 0.0225 + 0.00375 + 0.13125 = 0.1575

The final kinetic energy of the system, K.E.₂ = 0.5×(0.02+0.03+0.05)×0.5² = 0.0125

The change in kinetic energy of the system, ΔK.E. is therefore:

ΔK.E. = K.E.₂ - K.E.₁

Which gives:

ΔK.E. = 0.0125 - 0.1575 = -0.145

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The force exerted by the electromagnetic radiation from the sun on the Earth is 6.05 ´ 1017 N.

The force exerted by the electromagnetic radiation from the sun on the Earth is equal to the intensity of the radiation multiplied by the area of the Earth's surface.

The intensity of the radiation is 1350 W/m2, and the area of the Earth's surface is 4πr2, where r is the radius of the Earth.

Substituting these values into the equation:

F = 1350 W/m2 × 4πr2 = 1350 W/m2 × 4π × (6.4 ´ 106 m)2 = 6.05 ´ 1017 N

Therefore, the force exerted by the electromagnetic radiation from the sun on the Earth is 6.05 ´ 1017 N.

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If we know the frequency or wavelength of a wave, we can use this equation to calculate its speed or vice versa.

The correct relationship between the frequency of the incident radiation (ν), its wavelength (λ), and speed (c) is:

A. ν = λ/c

This equation is known as the wave equation and describes the relationship between the frequency, wavelength, and speed of a wave. It states that the frequency of a wave is inversely proportional to its wavelength and directly proportional to its speed. The speed of light (c) is a constant in a vacuum and its value is approximately 3.0 x 10^8 m/s.

Therefore, if we know the frequency or wavelength of a wave, we can use this equation to calculate its speed or vice versa.

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The statement illustrates how engineering has influenced society in that People want the cameras in their cell phones to be able to capture high-resolution images. Option C is corect.

A digital camera that creates pictures that can be saved on a computer and seen on a screen.

People want their mobile phone cameras to be able to take high-resolution pictures, which shows how engineering has affected society.

Statement B illustrates how engineering has influenced society.

Hence option C is correct.

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If Callisto's orbit were circular, then how many days would it take Callisto to complete one full revolution around Jupiter is 16.7 days. If Callisto's orbit were circular, what would its orbital speed be is 8.20 × 10³ m/s.

Radius of Callisto, rc = 2.40 × 10⁶ m

Mean orbital radius, r = 1.88 × 10⁹ m

The time required for Callisto to complete one full revolution around Jupiter is given by: T = 2πr/v

where, T is the period of revolution, v is the speed of Callisto, and r is the mean orbital radius.

If Callisto's orbit were circular, then its speed would be constant, and the time required to complete one full revolution would be the same as its period of revolution.

T = 2πr/v = (2π)(1.88 × 10⁹ m)/(8.20 × 10³ m/s) ≈ 1.67 × 10⁶ s ≈ 16.7 days

The speed of Callisto in a circular orbit is given by:

v = 2πr/T = (2π)(1.88 × 10⁹ m)/(1.67 × 10⁶ s) ≈ 8.20 × 10³ m/s

Hence, Callisto's orbit were circular, then how many days would it take Callisto to complete one full revolution around Jupiter is 16.7 days. If Callisto's orbit were circular, what would its orbital speed be is 8.20 × 10³ m/s.

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The velocity of the players just after the tackle is 0.91 m/s moving eastward and the decrease in kinetic energy is -1488 J

The law of conservation of linear momentum states that:

Momentum before collision = momentum after collision

Hence:

Where m₁, m₂ are masses of the object, u₁, u₂ are the object initial velocity and v is the velocity of both objects after collision.

a)

The velocity of the players just after the tackle is 0.91 m/s moving eastward.

b)

Initial kinetic energy = (1/2)(91)(5)² + (1/2)(95)(-3)² = 1565 J

Final kinetic energy = (1/2)(91 + 95)(0.91)² = 77 J

The decrease in kinetic energy = 77 - 1565 = -1488 J

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Answer:

They're impressions of organisms preserved in rock. Paleontologists use fossil remains to understand different aspects of extinct and living organisms.  They do this by analyzing invertebrate fossils. All of this, all this studying helps to know our past.

Explanation:

Answer:

easy stuff

Explanation:

Answer:

answer A and B

A. Quartz is harder than chalk.

B. Water has a higher surface tension than salty water.

Explanation:

did the test !

The two statements about the substances in the experiment are true are

Quartz is harder than chalk and the Water has a higher surface tension than salty water. Therefore the correct options are option A and option B.

Anything which has mass and occupies spaces is known as matter, mainly there are four states of matter solid liquid gases, and plasma.

These different states of matter have different characteristics according to which they vary their volume and shape.

The hardness of quartz is more than that of chalk.

The surface tension is because of the cohesive force of the molecules among them, surface tension can be defined as force per unit length and represented in the unit N/s.

The cohesive force of attraction is more in water as compared to that of salty water therefore the surface tension of the water is more than that of salty water.

The two statements about the substances in the experiment are true are

Quartz is harder than chalk and the Water has a higher surface tension than salty water. Therefore the correct options are option A and option B.

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Answer:

friction

air drag

every thing that opposes the motion affects kinetic energy

Explanation:

kinetic energy is a energy which is increase with increase in motion and potential energy is energy stored while the object is at rest

potential energy ∝ 1/(kinetic energy)

as kinetic energy increases potential energy decreases

The substante that is insoluble and floats is the wood chip and the one that is insoluble is a sugar cube.

Solubility is a property that a substance has to dissolve in another that is called a solvent, this can also depend on the conditions of the temperature to which the solution can be exposed and also the pressure. The solubility will depend on the properties of each of the components, it is not always the same in all types of solutions.

When no more of the solute can dissolve in a solution, the solution is said to be saturated.

Therefore, we can confirm that the substante that is insoluble and floats is the wood chip and the one that is insoluble is a sugar cube.

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Answer:

Atom has become a cation.

Atom has lost 2 electrons.

Explanation:

Based on the ionic notation of the element or ion given, we can clearly state that the atom has become a cation and it has lost two electrons.

A cation is an atom that has lost electrons to become positively charged.

In a neutral atom, the number of protons and electrons are the same.

Protons are the positively charged particles within an atom.

Electrons are the negatively charged particles.

 When an atom loses electrons, it becomes positively charged because the number of electrons is now more.

Positively charged atoms are called cations.

Answer:A:

To analyze how a gizzard works.

Explanation:

Answer:

1) To find the volume of the wood block, divide the mass by the density:

Volume = 583.3 g / 2.7 g/cm³

Volume = 216.24 cm³

2) To find the density of the butter, divide the mass by the volume:

Density = 319 g / 350 cm³

Density = 0.9114 g/cm³

Explanation:

The change in kinetic energy for this system is - 11.69 J.

The change in the kinetic energy of the system is calculated by applying the following kinematic equation as shown below.

ΔK.E = K.Ef - K.Ei

where;

The initial kinetic energy of the logs and the frogs is calculated as follows;

K.Ei = ¹/₂ (75)(1.8²)  +   8(¹/₂)(0.3)(1.3²)

K.Ei = 123.53 J

The final kinetic energy of the system depends on the final velocity of the system. The final velocity of the system after the collision is calculated as follows;

m₁u₁ + m₂u₂ = v (m₁ + m₂)

(75 x 1.8) + (8 x 0.3)(-1.3)  = v (75  +  8 x 0.3)

135 - 3.12 = 77.4v

131.88 = 77.4v

v = 131.88 / 77.4

v = 1.7 m/s

K.Ef = ¹/₂(m₁ + m₂)v²

K.Ef = ¹/₂(75 + 0.3x8)( 1.7² )

K.Ef = 111.84 J

The change in kinetic energy = 111.84 J - 123.53 J = - 11.69 J

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Answer:

LOL! couldnt be me either bestieeeee

Answer:

-_-

Explanation:

i dont know What was XD??

The Answer is B because primary consumers need to get their food from plants.

Answer:

The Answer is B because primary consumers need to get their food from plants

Explanation:

A new asteroid, similar to the size of the asteroid that hit the Earth at the end of the Cretaceous period, which handily obliterated the then-dominant species (dinosaurs being one of them), will now hit the populated, modern, civilized Earth.

In the previous impact, all life wasn’t wiped out. Many species were adversely affected, but many survived, and indeed, thrived due to the absence of the then-dominant species being removed.

Certainly in our modern world, and how much we depend on global agriculture, there would be a massive die-off of many people (not necessarily just by the direct hit of the comet impact, but by the after effects as well).

It would cause a massive crater, and eject global-cooling debris into the atmosphere, and sterilize the impact site. Agriculture would be brought to its knees, and major famines would occur.

A report made 4 years ago indicated that life re-established itself in the impact zone (of the Cretaceous impacting asteroid) after 30,000 years (which the article considered exceeding rapid). 30,000 years of anything would not recover fast enough in the modern day. If you think about it, ALL of modern human history happened within the last 10,000 years (and you could argue that is was much less than that).

I do think that some life would survive (using the impact from the asteroid at the K-T boundary as an analog), but these conditions are different:

Since the impact site is unknown, densely populated centers are at risk - however if it hit in exactly the same place, the population of Mexico and Central America and the Southern Tier of the US could be eliminated (approx 300,000,000 people) just from the blast effects and impact debris.

Population of the earth went from zero humans (in the prior impact) to over seven billion living today.

Simple systems are flexible and resilient and would most likely survive. Complex systems would collapse and would be the hardest to rebuild. Food production will continue in certain regions. Food distribution will be severely affected. Disease and pestilence would re-emerge, and public health would suffer, adding to the death toll.

Military adventurism would increase (the “have-nots” vs “haves”). Social order may get shoved back to our tribal roots.

Would it be a total loss? How much life would survive?Difficult to predict - it could go either way.

Think about this: How long would it take to recover? I don't think we could or would recover. Just as in the earlier strike, there would be no going back.

If an asteroid hits earth undoubtedly it impacts badly on earth because it might be able to wipe the living on the affected region. Similarly problems like temperature and light drop, atmospheric pollutants, suffocations etc. will be happened.

Any spatial objects made of rocks, gaseous and dust particles which are moving through the space are called asteroids. If such an asteroid hits earth, it might causes serious impacts including tsunami, earth quakes etc.

Dust and smoke rising in the atmosphere as a result of an asteroid impact hinder sunlight from reaching our planet, resulting in a decrease in global temperature.

Many living beings could die as a result of this incident. A small city might be destroyed if an asteroid the size of an apartment strikes Earth. A 20-story building-sized asteroid might wipe out a small nation if it were to strike Earth.

In addition to learning more about the solar system, asteroids are studied by scientists primarily to determine their overall number as well as their paths and physical characteristics. Naturally, we would wish to avoid an asteroid that is headed in our direction.

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Given data

*The given mass of the car is m = 1475 kg

*The maximum tension is T = 2551 N

The formula for the maximum possible acceleration of the truck is given by Newton's second law as

Substitute the known values in the above expression as

Hence, the maximum possible acceleration of the truck is a_max = 1.72 m/s^2

The central region of the Milky Way, specifically the galactic bulge and halo, contains mostly old (Population II) stars and globular clusters. Population II stars are older, metal-poor stars that formed early in the universe's history, primarily consisting of hydrogen and helium.

These stars have lower masses and are typically found in globular clusters, which are densely packed, spherical collections of stars that orbit the galactic center.

The galactic bulge is the central, elongated region of the Milky Way, characterized by its high concentration of stars, gas, and dust. Population II stars are more abundant in this area due to their age and the early formation of the Milky Way. Similarly, globular clusters are often found in the bulge due to their strong gravitational pull towards the center of the galaxy.

In contrast, the galactic halo is the outermost region of the Milky Way, encompassing both the galactic disk and the bulge. While the halo is relatively sparse compared to the bulge, it is still home to a significant number of Population II stars and globular clusters. These ancient stars and clusters in the halo provide crucial insights into the formation and evolution of our galaxy.

In summary, the central region of the Milky Way, including the galactic bulge and halo, contains a majority of the old (Population II) stars and globular clusters, reflecting the early history and development of our galaxy.

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The frequency of the sound wave is 1.07 × 10⁹ Hertz

Wavelength is simply the distance over which the shapes of waves are repeated.

From the wavelength, frequency and speed relation,

λ = v ÷ f

Where λ is wavelength, v is velocity/speed and f is frequency.

Given that:

Plug values into the above formula.

λ = v ÷ f

f = v / λ

f = ( 343 m/s ) / ( 3.2 × 10⁻⁷ m )

f = 1.07 × 10⁹ Hz

Therefore, the frequency is 1.07 × 10⁹ Hz.

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Norepinephrine, dopamine, serotonin, and GABA are neurotransmitters that are involved in psychopathology. This statement is correct.

Neurotransmitters are chemicals in the brain that send signals from one neuron to another, allowing them to communicate. When released by a neuron, neurotransmitters travel across a gap called a synapse to bind to receptor molecules on the adjacent neuron, thereby influencing its activity. A neurotransmitter is a chemical messenger in the nervous system that communicates information from one neuron to another across a synapse.

Psychopathology is the study of mental illness and abnormal behavior. Psychopathology is the branch of psychiatry that investigates mental and emotional disorders, including their causes, symptoms, and treatment.

The neurotransmitters Norepinephrine, dopamine, serotonin, and GABA are neurotransmitters that are involved in psychopathology. Some examples of psychopathology are anxiety disorders, bipolar disorder, depression, and schizophrenia. Dysfunction in these neurotransmitters may lead to an imbalance in the brain that may contribute to the development of mental illnesses.

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The momentum of car B immediately after the collision if the momentum of car A is 21 000 kg m/s after collision is 15000 kg m / s

p = m v

p = Momentum

m = Mass

v = Velocity

m1 = 2000 kg

u1 = 18 m / s

pi1 = 2000 * 18

pi1 = 36000 kg m / s

m2 = 1200 kg

u2 = 0

pi2 = 0

pf1 = 21000

According to law of conservation of momentum

pi1 + pi2 = pf1 + pf2

pi1 = Initial momentum of car A

pi2 = Initial momentum of car B

pf1 = Final momentum of car A

pf2 = Final momentum of car B

pf2 = pi1 + pi2 - pf1

pf2 = 36000 + 0 - 21000

pf2 = 15000 kg m / s

Therefore, the momentum of car B immediately after the collision is 15000 kg m / s

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Answer:

Topographic maps give the user the ability to view a three-dimensional landscape on a two-dimensional map. One who is able to read a topo map can identify the elevation and location of valleys, peaks, ridges, and other land features.

Explanation:hope this helps

Answer:

90 A

Explanation:

Applying,

P = VI.............. Equation 1

Where P = Power, V = Supply voltage, I = current.

Make I the subject of the equation

I = P/V.............. Equation 2

From the question,

Assuming the Voltage of the main electric supply is 120 V

Given: P = 10.8 kW = 10800 W, V = 120 V (household voltage)

Substitute these values into equation 2

I = 10800/120

I = 90 A

A cougar with a mass of 80 kg is standing at the edge of a cliff, then the cougar's potential energy, if the cliff is 70 m high, would be 54880 Joules.

Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total potential energy stored energy in the system which is represented by total potential energy.

As given in the problem a cougar with a mass of 80 kg is standing at the edge of a cliff, and if the cliff is 70 meters high then we have to find the potential energy,

The potential energy of the cougar = 80×9.8×70

                                                           =54880 Joules

Thus, the potential energy of the cougar would be 54880 Joules.

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