A charge is located at the center of sphere A (radius RA = 0.0010 m), which is in the center of sphere B (radius RB = 0.0012 m). Spheres A and B are both equipotential surfaces. What is the ratio VA/VB of the potentials of these surfaces?A) 0.42B) 0.83C) 1.2D) 1.4E) 2.4

Answer:

MY friend has already described the purpose of projectile motion so I will quickly go through the uses of each equation ...

Explanation:

TIME OF FLIGHT = it is given as 2Usin tita/g...it is the total time taken to and fro...it is 2x of the time taken ....

TIME taken ..t= Usin tita / g.....is the time taken to reach the maximum height which is 1/2 the TOTALTIME OF FLIGHT GIVEN ABOVE ..

MAXIMUM HEIGHT: the maximum height is the height attained by the projectile when projected ...it is calculate using the formula = U^2 sin^2 tita / 2g

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An object launched into projectile motion will have an initial launch angle anywhere from 0 to 90 degrees. The range of an object, given the initial launch angle and initial velocity is found with: R=v2isin2θig R = v i 2 sin ⁡ 2 θ i g .

Astronomers believe that Triton is a captured moon because its unusual orbit and characteristics suggest that it was not formed in its current location.

It orbits Neptune in a direction opposite to that of Neptune's rotation, which is highly unusual for a moon. Additionally, Triton's surface features and composition indicate that it may have originally formed in the Kuiper Belt, a region of the outer solar system beyond Neptune. Therefore, it is likely that Triton was captured by Neptune's gravity and pulled into its current orbit as a result of a gravitational interaction with another object in the early solar system.
Astronomers believe that Triton is a captured moon due to several factors. Firstly, Triton has a retrograde orbit, meaning it orbits Neptune in the opposite direction of the planet's rotation. This is unusual for a large moon and suggests that Triton was not originally formed in orbit around Neptune. Secondly, Triton's composition and features resemble those of objects found in the Kuiper Belt, a region of the solar system beyond Neptune that contains many icy bodies. These similarities support the idea that Triton was originally a Kuiper Belt object that was later captured by Neptune's gravitational pull, thus becoming a captured moon.

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a) The ground state electron configuration for iron (Fe) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶ 4s².

In the electron configuration, each number (e.g., 1s²) represents a specific energy level and orbital. The superscript indicates the number of electrons in that orbital. In the case of iron, the 3d orbital is filled with 6 electrons before filling the 4s orbital with 2 electrons.

b) The ground state electron configuration for aluminum (Al) is 1s² 2s² 2p⁶ 3s² 3p¹.

Aluminum has 13 electrons, and its electron configuration reflects the filling of the first three energy levels (1s, 2s, and 2p) before adding the 3s and 3p electrons.

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The total angular momentum of the two-disk system after the smaller disk is dropped on the larger disk is \(\omega _2 = (I_1\times \omega _1) / (I_1 + m_2 \times r^2)\).

The total angular momentum of the two-disk system after the smaller disk is dropped on the larger one will depend on the initial angular momenta of the two disks and any changes that occur when they collide.

Assuming the system is isolated, the total angular momentum before and after the collision must be conserved. Before the collision, we can assume that the smaller disk has an initial angular momentum of zero since it is not rotating, and the larger disk has an initial angular momentum given by:

\(L_1 = I_1 \times \omega_1\)

where \(I_1\) is the moment of inertia of the larger disk and ω₁ is its initial angular velocity.

When the smaller disk is dropped onto the larger one, there will be a transfer of angular momentum from the smaller disk to the larger one. The final angular velocity of the combined system will depend on the moment of inertia of the combined system, which can be approximated as:

\(I_2  I_1 + m_2 \times r^2\)

Where m_2 is the mass of the smaller disk and r is the distance from the center of the larger disk to the point where the smaller disk makes contact. We assume that the collision is elastic and that no external forces act on the system, so angular momentum is conserved:

\(L_1 = L_2\)

\(I_1 \times \omega _1 = (I_1 + m_2 \times r^2) \times \omega _2\)

Solving for ω₂, we get:

\(\omega _2 = (I_1\times \omega _1) / (I_1 + m_2 \times r^2)\)

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Explanation:

The kinetic energy (KE) of an object is given by the formula KE = 1/2 * m * v^2, where m is the mass of the object and v is its velocity.

Let's call the mass of object 2 "M". We know that both objects have the same kinetic energy, so we can set up the equation:

1/2 * 12 kg * (v1)^2 = 1/2 * M * (v2)^2

where v1 is the velocity of object 1 and v2 is the velocity of object 2.

We also know that the speed of object 1 is half of object 2 speed, so v1 = 1/2 * v2. We can substitute this into the equation above and simplify:

1/2 * 12 kg * (1/2 * v2)^2 = 1/2 * M * v2^2

3 kg * (1/4 * v2^2) = 1/2 * M * v2^2

3/4 * M * v2^2 = 3 kg * 1/4 * v2^2

3/4 * M = 3 kg

M = 4 kg

Therefore, the mass of object 2 is 4 kg.

Answer:

c

Explanation:

Answer:

The velocity of one of the trains is 15 m/s

The velocity of the other train 5 m/s

Explanation:

The given parameters of the two trains and the motion of the trains are;

The length of each train, l = 100 m

The time it takes one train to overtake the other, Δt₁ = 20 s

The time it takes the one train to cross the other, Δt₂ = 10 s

Let 'v₁' represent the velocity of one of the trains, and let 'v₂' represent the velocity of the other train, we have;

When one train overtakes the other, the trains are moving in the same direction and the relative velocity of the overtaking train, v = v₁ - v₂

The distance the train travels when overtaking or crossing, d = 2 × l

∴ d = 2 × 100 m = 200 m

d = 200 m

Therefore, we get;

v = v₁ - v₂ = d/Δt₁ = (200 m)/(20 s) = 10 m/s

∴ v₁ - v₂ = 10 m/s                     \({}\)                    Equation (1)

When one train crosses the other train, the trains are moving in opposite directions on the different tracks, therefore, we have;

For the overtaking trains, v = v₁ + v₂ = d/Δt₂ = (200 m)/(10 s) = 20 m/s

∴ v₁ + v₂ = 20 m/s                              \({}\)          Equation (2)

Adding equation (1) to equation (2) gives;

v₁ - v₂ + v₁ + v₂ = 2·v₁ = 10 m/s + 20 m/s = 30 m/s

∴ v₁ = 30 m/s/2 = 15 m/s

The velocity of one of the trains, v₁ = 15 m/s

From equation (2), we  have;

v₁ + v₂ = 20 m/s

v₂ = 20 m/s - v₁

∴ v₂ = 20m/s - 15 m/s = 5 m/s

The velocity of the other train, v₂ = 5 m/s.

According to Newton's third law of motion, the reaction force exerted by the air on the balloon is equal in magnitude but opposite in direction to the action force exerted by the balloon on the air.

Given that the magnitude of the action force (F_balloon) is -3 N, the magnitude of the reaction force (F_air) will also be 3 N. The negative sign indicates that the forces are in opposite directions, but when considering magnitudes, we ignore the negative sign.

Therefore, the magnitude of the reaction force of the air pushing on the balloon is 3 N.

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♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)

Heredity, also known as genetics, can influence personality traits in several ways.

Firstly, genetics can influence the temperament of an individual, which refers to their innate and consistent patterns of emotional reactivity and self-regulation. Some people are naturally more reactive and emotional, while others are more calm and more relaxed. These differences can be partially attributed to genetic factors.

Secondly, genetics can also play a role in determining certain personality traits, such as extraversion, agreeableness, and conscientiousness. Studies of identical twins, who share 100% of their genes, have shown that these traits are more similar between identical twins than between fraternal twins or non-twin siblings, who share only 50% of their genes on average.

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Answer:

the reflected angle must be 20º

Explanation:

The surface on which the ray of light falls is a mirror, therefore the law of reflection must be fulfilled, which establishes that the incident angle is equal to the reflected angle.

Therefore, if the incident angle is 20º, the reflected angle must be 20º receiving the normal.

2.37eV stopping potential would be required to arrest the current of photoelectrons.

The minimal negative voltage that must be provided to the anode to halt the photocurrent is known as stopping potential. When expressed in electron volts, the maximal kinetic energy of the electrons is equal to the stopping voltage.

Kmax = eV₀

2.37eV = eV₀

V₀ = 2.37eV

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"his performing the first successful heart surgery" - This is the correct choice.

The English Bill of Rights helped to shape the colonists' views of government by promoting the ideas of individual liberty, representative democracy, and limited government.

The English Bill of Rights is a document that was passed by the Parliament of England in 1689. It was a key moment in the development of modern democratic government, as it established certain rights and protections for English citizens, such as the right to bear arms, the right to a fair trial, and the prohibition of cruel and unusual punishment.

The English Bill of Rights also limited the power of the monarchy, requiring the king or queen to obtain the consent of Parliament before levying taxes or making other important decisions. Its influence can still be seen today in many democracies around the world.

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bullet points are for week people got to have more heart

Explanation:

Pressure = Height * Density * acc. due to gravity

P = 2 * 680 * 9.8 = 13, 328 Pa

Answer:

13328pa

Explanation:

p = hgd

h = height = 200cm = 2m

g = 9.8m/s²

d = density = 680kg/m³

p = pressure

p = 2 x 9.8 x 680 = 13328pa

The kangaroo's horizontal speed will be 9.7 m/s and its departure speed will indeed be 10.65 m/s.

By observing the pace at which this compressed region moves through the medium, we may determine the sound speed. The sound wave travels at a speed of around 343 meters per second in low humidity at 20 degrees Celsius.

The following equation relates the distance to the direction and initial velocity:

d = [v₀²sin2θ]/g, where θ – the angle of the jump.

Thus, v₀² = gd / (sin2θ) = (9.8×8)/0.69 = 113.62

v₀ = 10.65 m/s ( the take off speed).

The horizontal velocity equals:

vₓ = v₀cos 22° = 10.65 m/s × 0.92 = 9.7 m/s

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Answer:

Yes

Explanation:

I think our memories can be altered by emotions. If someone tells you something over and over and over again with strong emotion you will start to remember that more than the memory.

Emotions are very powerful and if you feel a certain emotion connected with a different memory I think that is stronger and can trick your brain into thinking that is the memory because of the strong emotion, even though the true memory was right, since it might not have as strong of mental emotion your brain will think that is the false memory because whatever is more memorable your brain will remember.

If that makes any sense,

The primary surprise regarding the first planet found orbiting another regular star was the fact that its orbit took only 4 days to complete.

Astronomy has long employed the method, also known as the radial velocity method. The same telescope that astronomers used to find this planet was also used to find the first planet ever discovered around a sun-like star using radial velocity.

Finding exoplanets can be done using the Doppler method. The motion and characteristics of the star and planet are examined using the Doppler effect. The planet and the star are revolving around the same mass.

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Answer:

Hereeeeeeeeeeeeeeeeeee

Answer:

Gravitational Potential Energy = mgh

Given The Potential Energy =3822J

h=15m

Making Mass subject

Mass = PE/gh

=3822/9.8x15

=26kg.

Have a great Day✌✅

Answer:

What is 40 °C in °F?

104

Calculations show that 40 °C is equal to 104 °F. Temperatures can be converted from Celsius (°C) to Fahrenheit (°F) using formula below: °F = (°C * 9/5) + 32.

One degree Celsius is equal to 33.8 degrees Fahrenheit, thus we can convert a temperature measured in degrees Celsius to degrees Fahrenheit by multiplying it by 1.8 and then by 32.

To convert a temperature from Celsius (°C) to Fahrenheit (°F), use the formula below:

°F = (°C * 9/5) + 32

40 °C is given temperature.

°F = (40 * 9/5) + 32

So, °F = 104 °F

As a result, 40 °C is equal to 104 °F.

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Sine = 0.9756, cosine = 0.2195, tan = 4.4444, cosec = 1.025, sec = 4.5556, and cotangent = 0.2250 are really the six trigonometric ratios of a angle in the triangle.

Trigonometry is the study pf angles and the angular connections between figures in two and three dimensions. The trigonometric functions that make up trigonometry are cosecant, cosine, cotangent, secant, sine, and tangent. These are also known as the circle functions.

Trigonometry is difficult since you must learn a variety of values for various functions in both degrees or radians. Your calculations would be inaccurate if you forget them or mix them up.

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Answer:drfdcfrfvgtgy6hbhhbhyg vcfrfr5tgvcfrtg vcdftghegthetrgbdgtthethe3thet

Explanation:

Sdwerftyrujtnyhbvcrdefgswthyujdehrtgfyhrjfuygtdhjueyrtgehwu3y4tgrehjwheyrgdhbnsjhfgvbdnhgfdhjsdehbrvbdensdvfgreyhsdgrftyhedggrfdhsgfv

Answer:basketball

Explanation: football is a one way ticket to brain damage

The acceleration that a sled experiences when a child pushes on a 10 kg sled at an angle of 13 degrees below the horizontal with the sled being pushed across the frictionless horizontal surface in the positive direction, and experiences a normal force of 116 N is 1.92 m/s².

We can use the following steps to solve the problem: Step 1: Draw a Free Body Diagram. The sled has four forces acting on it: Normal force, N, acts perpendicularly to the surface of the sled. Weight, W, acts straight down, vertically. Force of the child, F, acts at an angle of 13 degrees below the horizontal. Force of friction, f, is absent in this problem.  Step 2: Resolve forces. The force of the child has both vertical and horizontal components, which can be written as:

\(Fcosθ =  F x cos(13°) = (58.94 N) cos(13°) = 55.34 N.\)

\(Fsinθ =  F x sin(13°) = (58.94 N) sin(13°) = 13.60 N.\)

Weight can be calculated as follows:

\(W = m*g = 10 kg * 9.8 m/s² = 98 N.\)

The normal force is equal in magnitude to the weight of the sled: N = W = 98 N. Step 3: Write the equation of motion. The net force acting on the sled is the horizontal component of the force of the child: F net = Fcosθ.

The acceleration of the sled is given by :

\(a = F net/m.\)

We can now substitute the values to calculate the acceleration:

\(a = F net/m = (55.34 N)/(10 kg) = 5.534 m/s².\)

Therefore, the acceleration that this sled will experience is 1.92 m/s² (to the right, since the sled is pushed in the positive direction).In this problem, a child pushes on a 10 kg sled at an angle of 13 degrees below the horizontal.

The sled is pushed across the frictionless horizontal surface in the positive direction, and experiences a normal force of 116 N. The acceleration that this sled will experience is 1.92 m/s² (to the right, since the sled is pushed in the positive direction).

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The centripetal force that must be exerted against the wings to keep the plane moving in a circle is 3.71 × 10⁴ N.

Given that,

Time = 30 min = 30 × 60 sec = 1.8 × 10³ s

Radius = 50 km = 50× 10³ m = 5× 10⁴ m

We know the expression for velocity as,

v = 2πr/(T) = (2π×5× 10⁴) /(1.8 × 10³) = (π×10⁵)/(1.8 × 10³) = (100× 3.14)/1.8 = 174.44 m/s ≈ 175 m/s

Mathematically, centripetal force can be written as,

F = mv²/r = (60,500× 175²)/(5× 10⁴) = 3.71 × 10⁴ N

Thus, required centripetal force is 3.71 × 10⁴ N.

The question is incomplete. The complete question is ' Captain Chip, the pilot of a 60,500-kg jet plane, is told that he must remain in a holding pattern over the airport until it is his turn to land. If Captain Chip flies his plane in a circle whose radius is 50.0 km once every 30.0 min, what centripetal force must the air exert against the wings to keep the plane moving in a circle?'

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The top ones being parallel gives 1/(1/30 + 1/40) = 120/7 ohms. The rightmost path in series gives 30 ohms, and then the parallel pair on the right is 1/(1/50 + 1/30) = 75/4 ohms. I = V/R => 9 / (75/4+120/7) \(\approx\) .25A

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Answer:

4.298

Explanation:

the answer is 4.298 on acellus