why do we suspect that triton has had an active past? what source of energy could power such activity?
few craters mark the surface, suggesting that whatever craters formed have been erased by later activity. it also had nitrogen gas geysers.

The fluid's specific gravity and volume are 2.57 and 74.8 ft3, respectively.  The fluid specific weight in unit of lbf/ft3. round to the nearest one decimal place is 159.6 lbf/ft3

The fluid's specific weight can be calculated as follows:

specific weight = specific gravity . density of water

Where,

specific gravity = 2.57

density of water = 62.4 lbf/ft3,

So, specific weight = 2.57 . 62.4 = 159.648 lbf/ft3

Rounding to the nearest one decimal place, the specific weight of the fluid is 159.6 lbf/ft3.

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mN/s is the correct SI form for kN/ms.

Hence, Option B is correct.

Système Internationale, or SI, is the abbreviation for our metric system of measurements. It is a system that has been universally standardized, providing a common language between countries and among the various branches of science and technology. The International System of Units (SI), also known as the French Système International d'Unités, is a weights-and-measures system used internationally that extends the metric system of units. The metric system, also known as the International System of Units (SI), is the accepted unit of measurement on a global scale. The International Treaty of the Meter was signed on May 20, 1875, in Paris by seventeen nations, including the United States, and is now recognized as World Metrology Day worldwide.

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The statements that are true are II: The larger the molecule, the slower it will effuse and III: In real gases, the corrected volume is less than the ideal volume predicted by the ideal gas law.

Statement I, "Particles of different masses have the same average speed at a given temperature," is false. According to the kinetic theory of gases, at a given temperature, particles of different masses will have different average speeds. Lighter particles tend to have higher average speeds compared to heavier particles.

Statement II, "The larger the molecule, the slower it will effuse," is true. Effusion refers to the escape of gas molecules through a small opening. Larger molecules have a lower average speed due to their greater mass, resulting in slower effusion rates compared to smaller molecules.

Statement III, "In real gases, the corrected volume is less than the ideal volume predicted by the ideal gas law," is true. Real gases deviate from ideal behavior at high pressures and low temperatures. This deviation is accounted for by corrections such as the van der Waals equation, which adjusts the predicted volume to account for intermolecular forces and molecular size.

Statement IV, "For a given gas, the lower the temperature, the faster it will effuse," is false. The rate of effusion is inversely proportional to the square root of the molar mass of the gas, but it is not directly dependent on temperature.

In summary, statements II and III are true, while statements I and IV are false.

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electromagnetic

all electromagnetic waves move at the speed of light.

so yes, light waves are electromagnetic waves :)

i hope this helps!

A dipole is a separation of opposite electrical charges. A dipole is quantified by its dipole moment (μ). A dipole moment is the distance between charges multiplied by the charge

To determine if the net force between two dipoles separated by a distance r (with d << r) is attractive, repulsive, or zero, we need to consider their orientations and interactions.

Step 1: Identify the orientation of the two dipoles. Are they aligned parallel or antiparallel, or are they perpendicular to each other?

Step 2: Calculate the forces between the individual charges of the two dipoles. Use Coulomb's law to determine the electrostatic forces acting between each pair of charges (positive-positive, positive-negative, negative-positive, and negative-negative).

Step 3: Determine the net force between the two dipoles by summing up the forces calculated in Step 2. Make sure to account for the direction of the forces.

Step 4: Analyze the resulting net force. If it's positive, the force is repulsive; if it's negative, the force is attractive; and if it's zero, there is no net force acting between the dipoles.

By following these steps and taking into account the specific configuration of the dipoles, you can determine if the net force between them is attractive, repulsive, or zero.

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A wave that remains in a constant position is referred to as a stationary wave or a standing wave.

It is formed by the superposition of two waves with the same frequency and amplitude traveling in opposite directions. Unlike a traveling wave that moves through space, a standing wave appears to be stationary because the wave peaks and troughs oscillate in place.

The formation of a standing wave occurs when a wave reflects back upon itself, interacting constructively and destructively with the incoming wave. This phenomenon is characterized by the presence of nodes and antinodes. Nodes are points along the wave where the amplitude is always zero, resulting from destructive interference between the two waves. Antinodes, on the other hand, are points of maximum displacement, created by constructive interference..

Standing waves have significant implications in various fields of study. In physics and engineering, they are essential in the analysis of acoustics, optics, and electromagnetic fields. They find applications in musical instruments, where standing waves inside the instrument's resonating body create distinct harmonics and produce specific musical tones.

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The machine's efficiency is 81.61%, indicating that it converts 81.61% of the input energy into useful output energy, while the remaining percentage is lost as waste or dissipated in the process.

To calculate the efficiency, we can use the formula:

Efficiency = (Actual Output / Design Capacity) × 100

Given:

Actual Output = 7,407

Design Capacity = 9,050

Substituting the values into the formula:

Efficiency = (7,407 / 9,050) × 100

          = 0.817 × 100

          = 81.61%

Therefore, the efficiency of the machine is 81.61%.

Efficiency is a measure of how effectively a machine or system is utilizing its available capacity. In this case, the machine has a design capacity of 9,050 units, but it only produced an actual output of 7,407 units.

By dividing the actual output by the design capacity and multiplying by 100, we find that the machine's efficiency is 81.61%. This indicates that the machine is operating at approximately 81.61% of its full capacity.

A higher efficiency percentage would indicate a more optimal utilization of the machine's capacity, while a lower percentage suggests room for improvement in maximizing output.

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An object travelling in a circular path will experience centripetal acceleration.

It is directed towards the centre of the circle and allows the object to continually change its direction without changing its speed. The direction of centripetal acceleration is always perpendicular to the object's velocity.

The formula to calculate the centripetal acceleration of an orbiting object is:

ac = v² / r

Where:

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Answer:

try this

Explanation:

The energy of a falling object when it hits the ground is equaled to the energy it starts with because the potential energy is converted into kinetic energy entirely with the height at 0. This means the energy would be 200 J.

RESULT

Answer:

Explanation:

Average velocity is change in position over the change in time. You have to take the directions into account. 100km east and then 100km south. That forms a right triangle, so you can use Pythagorean's theorem to find the hypotenuse which would be the displacement from his initial position:

\(\sqrt{100^2+100^2} = \sqrt{20,000}=141.42km\)

Now take the displacement and divide it by the time it took to do the trip, 3 hours:

\(141.42km/3hours=47.14km/h\)

The average velocity of the motion is 47.1 km/hr.

The given parameters;

The sketch of the motion can be demonstrated as follows;

                      100 km

               P →  →  →  →  →

                                     ↓

                                     ↓ 100 km

                                     ↓ Q

The line joining P and Q is the resultant displacement = hypotenuse side of the right triangle.

The resultant displacement or total displacement is calculated as follows;

\(R^2 = 100^2 + 100^2\\\\R^2 = 20,000\\\\R = \sqrt{20,000} \\\\R = 141.4 \ km\)

The average velocity is the total displacement per total time of the motion;

\(v = \frac{total \ displacement }{total \ time} \\\\v = \frac{R}{t_1+t_2} \\\\v = \frac{141.4}{1+3} \\\\v = 47.1 \ km/hr\)

Thus, the average velocity of the motion is 47.1 km/hr.

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According to the given statement The size of the object is = 0.0002 μm

An object is a discernible grouping of stuff that may move as a unit in three dimensions via translation or rotation and may be contained by a discernible boundary. Irrespective of any other characteristics, every thing has a distinct identity.

The 10x field is equal to 2 mm.  

In order to find out the length of elongated object, we divide the length of 10x diameter with 10 as the elongated object is fitted 10 times.

So, we get 10x/10 = 2 mm /10 = 0.2 mm

To convert this answer into micrometres, we divide it with thousand as 1 mm = 1000 μm

∴ the answer is 0.2×10^-3 μm  = 0.0002 μm

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Answer:True

Explanation:

Answer:

To calculate the direction of the vector v⃗ = (x, y) , use the formula θ = arctan(y/x) , where θ is the smallest angle the vector forms with the horizontal axis, and x and y are the components of the resultant vector.

To determine the number of half-lives that have elapsed, we need to compare the ratio of 14C to 14N atoms found in the hip bone fragment.

The ratio of 1 14C atom for every 31 14N atoms suggests that the hip bone fragment contains a smaller amount of 14C compared to the expected ratio found in a living organism. Since 14C undergoes radioactive decay with a half-life of approximately 5730 years, we can calculate the number of half-lives that have elapsed by observing how many times the ratio needs to double to reach the expected ratio.

In this case, if the expected ratio is 1:1, then the observed ratio of 1:31 would require five doublings to reach 1:1. Therefore, approximately five half-lives have elapsed since the death of the organism from which the hip bone fragment originated.

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Answer:

1st

Explanation:

It is because the horse is heavier

why does something fall faster if it is heavier?

➪ First of all I would like to inform you that this statement is not true. The acceleration does not depend on the mass of the object. Heavier things have a greater gravitational force AND heavier things have a lower acceleration. It turns out that these two effects exactly cancel to make falling objects have the same acceleration regardless of mass.

Lets see

According to Newton's second law

\(\\ \rm\rightarrowtail F=ma\)

\(\\ \rm\rightarrowtail F\propto m\)

\(\\ \rm\rightarrowtail m\propto \dfrac{1}{a}\)

So heavier objects fall faster than lighter ones .

Moped riding represent angry customers in the model from the lesson.

Moped riding refers to the riding of a special type of small motorcycle, generally having a less stringent licensing requirement than full motorcycles or automobiles.

Generally, the word "moped riding" describes any two-wheeledth with a step-through chassis and footrest platform. These two-wheeled vehicle are usually equipped with bicycle-like pedals that the rider uses to propel the vehicles.

Although motorcycles are usually very harder to learn to ride

The following are other types of riders:

So therefore, moped riding represent angry customers in the model from the lesson.

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If an object has a smaller density than water, it will partially submerge in water. This is because of Archimedes' principle, which states that an object will float in a fluid if its weight is less than or equal to the weight of the fluid displaced by the object.

If the object's density is less than that of water, it will displace a volume of water that weighs more than the object, causing it to float partially.

The extent to which the object will submerge depends on the difference between its density and that of water. If the difference is small, the object will float only slightly below the surface of the water. On the other hand, if the object's density is much less than that of water, it will float high above the surface of the water, partially submerged.

It is worth noting that an object with a density that is much less than that of water will eventually rise to the surface of the water. This is because the buoyant force acting on the object increases as the object rises, eventually exceeding the object's weight and causing it to float to the surface.

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Answer:

rusting is a chemical property because it is irreversible it changes the identity of a substance

Answer:

C. chemical property

Explanation:

a chemical property of iron is that it is capable of combining with oxygen to form iron oxide，the chemical name of rust

The tension force does 2945 joules of work on Magnus during the first round of the strength competition.

The work done by a force is given by the formula,

W = Fd cosθ

where,

W = work done

F = magnitude of the force

d = distance moved in the direction of the force

θ = angle between the force and the direction of motion

In this case, the tension force is constant and horizontal, so the angle between the force and the direction of motion is zero. Therefore, the formula simplifies to,

W = Fd

Substituting the given values,

W = (1900 N) * (1.55 m)

W = 2945 J

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Answer:

Explanation:

In the stratosphere the ozone layer absorbs and scatters the solar ultraviolet radiation. In the mesosphere meteors burn up. In the thermosphere aurora and satellites occur. In the ionosphere overlapping into the mesosphere and thermosphere occur.

Answer:

Thermospheric temperatures increase with altitude due to the absorption of highly energetic solar radiation. Radiation causes the atmosphere particles in this layer to become electrically charged, enabling radio waves to be refracted and thus be received beyond the horizon. This is how solar radiation can affect the thermosphere.

Explanation:

got a 100% on online content edge 2022

The loop of gas following the magnetic field lines between sunspots' poles is known as a coronal loop.

Coronal loops are shaped by the Sun's magnetic field. The Sun's magnetic field is generated by the movement of plasma and is concentrated in regions known as active regions, which are often associated with sunspots. The magnetic field lines extend out from these active regions and form loops in the corona. Coronal loops can reach heights of several hundred thousand kilometers above the sun's surface and are visible during solar eclipses or with specialized telescopes that observe in ultraviolet or X-ray wavelengths. They are also associated with the formation of solar flares and coronal mass ejections, which can have significant effects on Earth's space weather.

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The force on the car is 1×10^5 N.

The work-energy theorem states that when a force displaces a body, the change in kinetic energy of the body is measured. Conversely, when an opposing force is applied to a body, the kinetic energy of the body decreases by the same amount. It loses kinetic energy. The bodies' loss of kinetic energy is equivalent to the labor they put into resisting the opposing force.

mass of the car, m = 2000 kg

the velocity of car  , v = 20 m/s

distance traveled, s = 4 m

let the force on the car be F

using work-energy theorem

\(F\times s\times cos(180) = 0.5 \times m \times ( 0 - v^2)\)

\(F \times 4 \times(-1) = 0.5\times 2000 \times ( 0 - 20^2)\)

solving for F

\(F = 1 \times 10^5 N\)

the force on the car is \(1 \times 10^5 N.\)

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13.The color with the longest wavelength is option A. Red.

14.The sky appears blue due to option D. Scattering of light.

Red light has a longer wavelength compared to yellow and blue light.The color that has the longest wavelength is red. The color of the sky appears blue due to scattering of light. The distance between one peak and the next in a series of waves, particularly electromagnetic waves traveling through space or along a wire is referred to as wavelength.

The wavelength of light, for example, determines its color. Red light has the longest wavelength, followed by orange, yellow, green, blue, and purple, with violet light having the shortest wavelength. When light is reflected off a surface or passes through a medium, it can be deflected in various directions, a phenomenon known as scattering of light.

The Earth's atmosphere scatters sunlight in all directions, but the shorter blue wavelengths are scattered more than the longer wavelengths. As a result, we perceive the sky as blue during the day.  The light becomes scattered when it interacts with particles in the atmosphere, causing the sky to appear blue during the day and red during sunset or sunrise. The scattering of light is the process that causes the sky to appear blue.

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Explanation:

You can use the equation Q = mc∆ø

where Q is the energy in J

m is the mass in kg

C specific heat capacity

∆ø is the change in temperature which is basically end temp - start temp

Substitute the values given in your table into the equation and find the unknown terms

Don't forget to do the unit conversions for the kJ to J (by multiplying by 10³) and the mass from g to kg (by dividing by 10³)

hope this was clear!

Given that the two resistors are connected in parallel and each resistance is 14 ohms.

The current in the circuit is I = 0.1 A.

We have to find the voltage of the battery.

Let the voltage be denoted by V.

First, we have to find the equivalent resistance.

The equivalent resistance is 7 ohm.

According to Ohm's law, the voltage can be calculated by the formula

Thus, the voltage of the battery is 0.7 V.

Answer:

D By looking all the way to the cosmological horizon, we can see the actual conditions that prevailed all the way back to the first instant of the Big Bang.

Explanation:

Astrophysicists are able to determine the conditions that existed in the early universe, by using instruments such as telescopes to observe and study cosmic horizons. More ideas about the early universe can be found from the thermal light present in cosmic backgrounds.

Scientists study these details that provide an insight into the conditions that existed so many years ago. They have been able to determine that the Big Bang involved so many collisions from these observations.

Explanation:

based on the above information

1.A

2.B

3. C