how long (weeks or months) does it take the sun to move from virgo to this other constellation?

The power radiated by a sphere into empty space can be calculated using the Stefan-Boltzmann law, which states that the power radiated is proportional to the fourth power of the temperature and the surface area of the object and is given by:

Power = emissivity x Stefan-Boltzmann constant x surface area x temperature^4

Here, the sphere has a radius of 10 cm, so its surface area can be calculated as:

Surface area = 4 x π x radius^2 = 4 x π x (0.1 m)^2 = 0.04π m^2

Substituting the given values into the equation and solving for power, we get:

Power = 1.0 x 5.67 x 10^-8 x 0.04π x (400 K)^4 = 69.98 W

Therefore, the power radiated by the sphere is approximately 70 W, which is option B.

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Energy, heavier atoms atoms, neutron and a proton are the products of a fusion reaction.

Nuclear fusion is a type of reaction in which two or more atomic nuclei fuse or combine to form heavy nuclei and subatomic particles such as neutrons or protons and release of energy.

So we can conclude that Energy, heavier atoms, neutron and a proton are the products of a fusion reaction.

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Answer:

B C D

Explanation:

Match the volcano type with its correct

1. Cinder Cone:

Plate Tectonic Setting: Mostly Spreading Ridges, some Mantle Plumes

2. Composite/Stratovolcano:

Plate Tectonic Setting: Subduction Zones (Convergent Margins)

3. Shield Volcano:

Plate Tectonic Setting: Mostly Mantle Plumes, some Spreading Ridges

4. Large Igneous Provinces (LIPs):

Plate Tectonic Setting: Various tectonic settings

Volcano types can be associated with specific plate tectonic settings and magma compositions. Let's match the volcano types with their correct plate tectonic settings and magma compositions:

1. Cinder Cone:

Plate Tectonic Setting: Mostly Spreading Ridges, some Mantle Plumes

Magma Composition: Mafic

Cinder cones are typically small, steep-sided volcanoes that form from the eruption of basaltic magma. They are commonly found in volcanic regions associated with spreading ridges, where tectonic plates are moving apart, or in areas influenced by mantle plumes, such as hotspot volcanism.

2. Composite/Stratovolcano:

Plate Tectonic Setting: Subduction Zones (Convergent Margins)

Magma Composition: Intermediate, varies from felsic to mafic

Composite or stratovolcanoes are characterized by their steep slopes and alternating layers of lava flows and pyroclastic materials. They are commonly found in subduction zones, where an oceanic plate is being subducted beneath  continental plate. The magma composition of these volcanoes varies, ranging from felsic (high silica content) to mafic (lower silica content).

3. Shield Volcano:

Plate Tectonic Setting: Mostly Mantle Plumes, some Spreading Ridges

Magma Composition: Mafic

Shield volcanoes are large, broad, and gently sloping volcanoes that form from the eruption of basaltic magma. They are often associated with mantle plumes, such as those found in hotspot regions, as well as in volcanic areas influenced by spreading ridges.

4. Large Igneous Provinces (LIPs):

Plate Tectonic Setting: Various tectonic settings

Magma Composition: Mafic

Large Igneous Provinces (LIPs) are extensive regions of volcanic and intrusive rock formations that are associated with massive outpourings of mafic magma. They can occur in various tectonic settings, including continental rifts, hotspot regions, and flood basalt provinces.

5. Seafloor Volcanism, Pillow Lava:

Plate Tectonic Setting: Mostly Spreading Ridges

Magma Composition: Mafic

Seafloor volcanism is primarily associated with spreading ridges, where magma wells up and creates new oceanic crust. The lava erupted underwater cools rapidly, forming pillow-shaped structures known as pillow lavas. The magma composition is typically mafic, dominated by basaltic lavas.

These associations between volcano types, plate tectonic settings, and magma compositions provide insights into the geological processes and Earth's dynamics that shape the Earth's surface.

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The length of the copper wire must be approximately 44.2 meters for it to have a resistance of 0.128 ohms, assuming a 14-gauge wire with a diameter of 1.63 mm and using the resistivity of copper.

To find the length of the wire, we can use Ohm's Law, which states that the resistance (R) is equal to the product of the resistivity (ρ), the length (L), and the cross-sectional area (A) of the wire, divided by the diameter (d) of the wire squared.

The formula can be written as:

R = ρ * (L / A)

Resistance (R) = 0.128 ohms

Resistivity of copper (ρ) = (1.68 × 10^-8) ohm-meter (at 20°C)

Diameter (d) = 1.63 mm = 0.00163 meters (converted from millimeters to meters)

We need to find the length (L) of the wire.

To calculate the cross-sectional area (A) of the wire, we can use the formula for the area of a circle:

A = π * (d/2)^2

Plugging in the values, we have:

A = 3.14159 * (0.00163 / 2)^2

A  ≈ 2.08 x 10^-6 square meters

Rearranging Ohm's Law to solve for the length (L), we get:

L = (R * A) / ρ

Substituting the given values:

L = (0.128 * 2.08 x 10^-6) / (1.68 x 10^-8)

L  ≈ 44.2 meters

The length of the copper wire must be approximately 44.2 meters for it to have a resistance of 0.128 ohms, assuming a 14-gauge wire with a diameter of 1.63 mm and using the resistivity of copper.

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Answer:

330 meters per second

Explanation:

Δx = vt

660 = 2v

Divide both sides by 2 to get 330 = v

Answer:

6. False 7. True 8. False (Unbalanced forces acting upon an object changes the object's motion) 9. False 10. True (I'm not 100% sure if these answers are right though.)

Answer:

I confirm that answer LOL

Explanation:

Answer:

ooof mood

Explanation:

Answer:

i kinda like physics.

Explanation:

Answer:

Below

Explanation:

To convert mm to m all you need to do is divide the value by 1,000

so : 3 / 1,000 = 0.003 meters

Hope this helped!

Answer:

It is D.

Explanation:

Sound travels by the movement of particles bumping against each other and if there is no particles in a vacuum(space) then there is no sound. Light can travel through space because it doesn't need to travel by/through particles.

Answer:

162 should be the answer because 18x3x3=162.

It will take 3.0 s

Step by step explanation:-

We want to find the time it will take the object to reach the land.

To do this, we apply one of Newtons equations of motion:

\(s = ut + \frac{1}{2}gt^{2} \)

where s= distance/height

u = initial velocity

g = acceleration due to gravity

t = time

From the given question, we have :

\(s = 180m \\ u = 45m/s \\ g = 9.8m/{s}^{2}\)

Now substitute the given values into the equation and solve for t :

\(180 = 45t + ( \frac{1}{2} \times 9.8 \times {t}^{2})\)

\( = > 180 = 45t + 4.9 {t}^{2} \)

\( = > 4.9 {t}^{2} + 45t - 180 = 0\)

Solving the above quadratic equation, using quadratic formula :

\( = > t≈3.0s;t = - 12.2s\)

Since time cannot be negative,

\(t = 3.0s\)

So, it will take 3.0 s to reach the land.

The work done by a force in displacing an object from its initial position to its final position can be calculated using the formula W= F.AB. The work done in this problem was calculated using formula to be 38 J.

The work done W by a constant force moving an object from point A to B can be calculated as:

W = F.AB

= (2i−3j+3k)(4i+5j+5k)

= (2×4)(i × i) + (3×5)(j × j) + (3×5)(k × k)

= 8i² + 15j² + 15k²

Since i², j² and k² have the values of 1, we get

= 8 + 15+ 15

= 38 J

Therefore, the work done W is calculated to be 38 J.

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Answer:

I'm not sure but, this video's pretty cool: gestyy.com/eyRkH2

Explanation:

pretty scary gameplay

Answer:

After five monthly payments, Quiana’s loan amount changes by $1,237.15.

Explanation:

The required mass of the object with an acceleration of 10 m/s² and a force of 10 newtons to accelerate it is 1 kg.

From Newton's second's law of motion, force is described in equation form as, F = m × a

where, m is mass

a is acceleration

Given that,

Acceleration of an object = 10 m/s²

Force needed to accelerate the object = 10 N

Object's mass = ?

From the above equation, making mass as the subject, we have,

F = m × a

m = F/a = 10/10 = 1 kg

Thus, the required object's mass is calculated to be 1 kg.

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Answer:

The new pressure will be 12 atm

Answer: I think the answer is D

Explanation: The sun is at a fixed place with respect to solar system but, still it appears to rise and set.​

The sun is at a fixed place with respect to solar system but, still it appears to rise and set.​ - This  fact proves that the earth rotates. Hence, option (d) is correct.

When a spherical, three-dimensional object rotates around an invisible line inside of its center, it is a relatively common type of rotation. This focal point is known as an axis. Basketballs in motion revolve around an axis. Axially rotating globes are used. The Earth itself has an axis of rotation.

The axis of the Earth is vertical, which means it moves up and down. (A rolling log, on the other hand, runs sideways and has a horizontal axis.) The North and South Poles are on opposite sides of the Earth's axis. The Earth completes one full rotation of this invisible line in 24 hours, or one day.

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Permanent magnets with a vertical magnetic field use surface coils that are flat. Correct answer is Option D.

Flat surface coils are commonly used to generate a magnetic field perpendicular to their surface. These coils are typically in the form of flat, rectangular or circular shapes and are wound with a conducting wire. The wire is wound uniformly across the surface of the coil, creating multiple loops.

Unlike solenoids (Option A), which are cylindrical coils with a helical shape, or linear (Option B) and quadrature (Option C) coils that refer to specific configurations or arrangements of multiple coils, the term "flat" describes the physical shape and orientation of the surface coils.

Flat surface coils are widely used in various applications such as in magnetic sensors, magnetic resonance imaging (MRI) systems, induction cooktops, and magnetic levitation systems. Their flat design allows for efficient generation of a vertical magnetic field with uniformity and precision in the desired direction.

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Answer:

b. 40m/s2

Explanation:

Acceleration is calculated by dividing velocity over time. Therefore 200m/s by 5s equals 40m/s2

Answer:

B

Explanation:

v = vo + at

200 = 0 + a*5

200 = 5a

a = 200/5 = 40 m/s²

initial velocity (vo) is 0 because it says it start from station

To double the spring force, you can find a stiffer spring with twice the spring constant (2k) or double the amount the spring is compressed or stretched (2x).

The force exerted by a spring is given by Hooke's Law, F = kx, where F is the force, k is the spring constant, and x is the amount the spring is compressed or stretched. To double the spring force, we can consider two approaches:

1. Find a stiffer spring with twice the spring constant (2k): By increasing the stiffness of the spring, we can increase the force it exerts for a given displacement. So, finding a stiffer spring with twice the spring constant (2k) will double the force it applies.

2. Double the amount the spring is compressed or stretched (2x): By increasing the displacement of the spring, we can increase the force it exerts. If we double the amount the spring is compressed or stretched (2x), the force exerted by the spring will also double.

Both of these approaches will result in doubling the spring force, but they achieve it through different means: either by changing the spring constant or by altering the displacement.

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In the absence of air resistance, an angle of 15 degrees is required for a ball to be thrown to go the same distance as one thrown at an angle of 75 degrees.

A projectile is an object that is launched into the air and then moves only in response to the acceleration of gravity. The trajectory of the object is referred to as the projectile's trajectory.

As is common knowledge, the projectile's motion range is determined by;

  R = v²sin(2θ)/g

Here, we know that the range for two different angles will be the same.

Consequently, we can state that the two angles must be complementary.

hence, the two angles must be

θ, 90 - θ

In light of the fact that one projection angle is 75 degrees

Therefore, the second angle over the same range must be 90 - 75 = 15 degrees.

hence another projection angle of 15 degrees is required.

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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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It take 1 hour 33 minute for all the ice to melt.

The heat or energy that is absorbed or released during a substance's phase change is known as latent heat. It might go from a solid to a liquid or from a liquid to a gas, or vice versa. Enthalpy, a characteristic of heat, is connected to latent heat.

Given parameters:

Mass of the ice: m=  0.6kg.

Heat enters though the insulator each second , H = 35.564J.

latent heat of fusion for ice: L =  3.335×10⁵ J/kg.

So, time taken for all the ice to melt = mL/H

=   0.6 × 3.335×10⁵/35.564 second

= 5626 second

= 1 hour 33 minute.

Hence,  It take 1 hour 33 minute for all the ice to melt.

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Answer:

When an unbalanced force acts on a body the side with the greater force's dircetion makes the object move along its direction

Also to find the net force acting on the bofldy you can subtract the two force acting on the body

In case of balanced force the net force will always be 0

Hello :)

Answer:

When an unbalanced force acts on an object, the side with the greater force's direction makes the object move along its direction. For example, when two cars collide on a head-on collision, both vehicles will move in the direction that the vehicle with the greater force is moving in.

Answer:

wave w is a sound wave

wave x and y are light waves

Answer:

D

Explanation:

How many electrons would have to be moved by one ball to the next in order to have a 1.00 x 104 N imbalance between them? 7.2 x 1010 is equal to fractional = n/ = (5.25 x 1015)/(72.8 x 1023).

In terms of physics, magnitude is just "distance or quantity." It demonstrates the size, direction, and speed of an item in both relative and absolute terms. It's used to indicate the size or scope of something. In physics, the term "magnitude" often refers to the a size or amount.

Calculation

m = mass of each aluminium sphere = 0.0250 kg = 0.0250 x 1000 g = 25 g

M = atomic mass = 26.982 g/mol

n = number of moles

Number of moles is given as

n = m/M

n = 25/26.982

n = 0.93

N₀ = Avogadro's number = 6.023 x 10²³

N = number of atoms

Number of atoms is given as

N = n N₀

N = (0.93) (6.023 x 10²³) = 5.6 x 10²³ atoms

= number of electrons per atom = 13

= total number of electrons

Total number of electrons are given as

=  N

= (13) (5.6 x 10²³)

= 72.8 x 10²³ electrons

b)

F = magnitude of electric force between the two spheres = 1 x 10⁴ N

r = distance between the spheres = 80 cm = 0.80 m

Q = magnitude of charge on each sphere = ?

Using Coulomb's law, force between the spheres is given as

F = k Q²/r²

inserting the values

1 x 10⁴ = (9 x 10⁹) Q²/(0.80)²

Q = 8.4 x 10⁻⁴ C

n = number of electrons removed

e = magnitude of charge on each electron

using the equation

Q = n e

8.4 x 10⁻⁴ = n (1.6 x 10⁻¹⁹)

n = 5.25 x 10¹⁵

c)

Fraction = n/  = (5.25 x 10¹⁵)/(72.8 x 10²³) = 7.2 x 10⁻¹⁰

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The lower solubility of Mg (OH)2 compared to Ca (OH)2 makes it difficult to determine the Ksp value in a similar experiment.

In the context of determining the Ksp value through titration, the solubility of a salt plays a crucial role. The Ksp value represents the equilibrium constant for the dissolution of a sparingly soluble salt in water. It is determined by measuring the concentration of the dissolved ions at equilibrium. In the given experiment, Ca(OH)2 was used, which has a higher solubility compared to Mg(OH)2. The solubility of a compound is the maximum amount of solute that can dissolve in a given solvent under specific conditions. Since the solubility of Mg(OH)2 is lower than that of Ca(OH)2, it means that fewer Mg2+ and OH- ions will be present in the solution for a given concentration. As a result, the equilibrium concentration of the ions in the solution will be significantly lower, making it challenging to accurately determine the Ksp value through titration. The lower solubility of Mg(OH)2 affects the endpoint of the titration. The endpoint is the point at which the indicator changes color, indicating the completion of the reaction. With Mg(OH)2, the endpoint may not be clearly observed due to the lower concentration of ions in the solution, leading to difficulties in accurately determining the Ksp value. Therefore, the lower solubility of Mg(OH)2 compared to Ca(OH)2 makes it challenging to decide the Ksp value in a similar experiment.

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The given statement "the maxwell distribution for a given gas depends only on the absolute temperature" is True because The Maxwell distribution for a given gas depends only on the absolute temperature. The Maxwell distribution describes the speed distribution of gas molecules in thermal equilibrium. It shows the probability of finding gas molecules with different speeds at a particular temperature. The distribution is independent of the type of gas and is solely determined by the temperature.

The Maxwell distribution, also known as the Maxwell-Boltzmann distribution, describes the speed distribution of particles in a gas at a given temperature. It is a probability distribution that depends solely on the absolute temperature of the gas.

The distribution describes the likelihood of finding particles with different speeds or velocities in the gas, and it does not depend on factors such as the type of gas or its density.

Therefore, the statement that the Maxwell distribution for a given gas depends only on the absolute temperature is true.

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Answer:

The long, light-colored lines extending from many craters on the Moon are called rays and are "crater rays".

Explanation:

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