The realese of magma from the crater is called earthquake

True or False​

Answer:

C.

Explanation:

Water is hydro. So water when evaporating moves up from the lake towards the atmosphere.

Answer:

Anaphase

Explanation:

This is because the spindle fibres have shortened and is pulling the chromatids towards the poles of the cell. The chromatids have also separated.

The cell division which is shown in the picture is anaphase. The correct option is C.

Meiosis is divided into two main phases, each with its own set of subphases:

1 Meiosis I:

a. Prophase I: This is the longest and most complex phase of meiosis. During this phase, homologous chromosomes pair up and form bivalents, and crossing over occurs between the homologous chromosomes. The nuclear envelope breaks down, and spindle fibers form from the centrioles at opposite poles of the cell.

b. Metaphase I: During this phase, the homologous chromosomes line up along the metaphase plate, with one chromosome from each homologous pair facing each pole of the cell.

c. Anaphase I: During this phase, the spindle fibers contract and pull the homologous chromosomes towards opposite poles of the cell.

d. Telophase I: During this phase, the chromosomes reach the poles of the cell and the nuclear envelope reforms around each set of chromosomes. The cell then undergoes cytokinesis, resulting in two daughter cells.

2. Meiosis II:

a. Prophase II: During this phase, the nuclear envelope breaks down, and spindle fibers form from the centrioles at opposite poles of the cell.

b. Metaphase II: During this phase, the chromosomes line up along the metaphase plate, with sister chromatids facing opposite poles of the cell.

c. Anaphase II: During this phase, the spindle fibers contract and pull the sister chromatids towards opposite poles of the cell.

d. Telophase II: During this phase, the chromosomes reach the poles of the cell and the nuclear envelope reforms around each set of chromosomes. The cell then undergoes cytokinesis, resulting in four haploid daughter cells.

Meiosis involves two rounds of chromosome segregation, resulting in four haploid daughter cells that are genetically distinct from the parent cell.

Therefore, The correct option is C i.e anaphase.

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Answer:

It doesn't change. It stays the same.

I hopes this helped you and if it did I'm glad I helped someone!!!

Explanation:

The frequency of the travelling wave is found to be 20 Hertz.

The relationship between the frequency of the wave, the wavelength of the wave and the speed of the wave is given by

V = fy

Where,

V is the speed of the travelling wave,

F is the frequency of the travelling wave,

y is the wavelength of the travelling wave.

The speed of the travelling wave is given to be 500m/s and the wavelength of the travelling wave is 25m.

Now, putting all the values,

500 = f(25)

f = 500/25

f = 20Hz

So, the frequency of the travelling wave is 20Hz.

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Explanation:

Hydraulic systems use the pump to push hydraulic fluid through the system to create fluid power. The fluid passes through the valves and flows to the cylinder where the hydraulic energy converts back into mechanical energy. The valves help to direct the flow of the liquid and relieve pressure when needed

Answer:

The battery it consider as one of the circuits elements.

The amount of force that provides an acceleration of 35m/s² with a mass of 80,000kg is 2,800,000N.

HOW TO CALCULATE FORCE:

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The special theory of relativity predicts that fast-moving objects will appear to be shorter along the direction of motion than when they are seen at rest. Option B is the correct answer.

According to Einstein's theory, an item contracts more in the direction of motion the quicker it moves. This effect is not perceptible in our ordinary experiences since it is only perceptible at speeds that are a considerable fraction of the speed of light. Option B is the correct answer.

A fundamental theory of physics known as the special theory of relativity describes how the rules of physics apply to things moving quickly. The most well-known prediction of the theory is that no matter how quickly the observer is travelling in relation to the light source, the speed of light stays constant in all reference frames. Numerous tests have verified this prediction, which is now regarded as one of the foundations of contemporary science.

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The complete question is, "The special theory of relativity predicts that fast-moving objects will appear to be ______than when they are seen at rest:

a. fatter

b. shorter along the direction of motion

c. stretched out along the direction of motion

d. older

e. less massive"

Answer:

Explanation:

The higher the object is relative to some defined baseline (like the ground), the greater the potential energy.

Potential Energy = U = mgh

U is directly proportional to h (height of the object), so the greater the h the greater the U.

Answer:

Input Force

Explanation:

Answer:

resistance distance.

Explanation:

Answer:

Answer B is the correct answer: "Motion of one projectile as seen from the other is a straight line."

Explanation:

Let's write the equations of motion for each projectile, using that projectile \(a\) is launched with velocity \(a\) which has components associated with the angle of launching, given in x and y coordinates as: \(a_x\,\,and\,\,a_y\).

Similarly, assume that projectile b is launched with velocity \(b\) with components due to the launching angle = \(b_x\,\,and \,\,b_y\)

then the equations of motion for the two projectiles launched at the same time (t) from the same spot (position that we assume to be at the origin of coordinates to simplify formulas) are:

\(x_a=a_x\,t\\y_a= a_y\,t-\frac{1}{2} g\,t^2\\and\\x_b=b_x\,t\\y_b= b_y\,t-\frac{1}{2} g\,t^2\)

therefore, from the frame of reference of projectile "b", the x and y position of projectile "\(a\)" would be:

\(x_{a\,b}= x_a-x_b= a_x\,t-b_x\,t=(a_x-b_x)\,t\)  which is linear in "t"

\(y_{a\,\,b}=y_a-y_b= a_y\,t-\frac{1}{2} g\,t^2-\left[ b_y\,t-\frac{1}{2} g\,t^2\right]=(a_y-b_y)\,t\) which is also linear in t.

Therefore the motion of one projectile with reference to the other is a straight line (answer B)

Notice as well that this two projectiles cannot collide because they have been launched together, and supposedly at different speeds and angles. The only way that they can share the same x-coordinate and the same y-coordinate at the same time "t" is if their velocity components are equal, which is not what we are told.

\(x_a=x_b\\a_x\,t= b_x\,t\\and\\y_a= y_b\\a_y\,t-\frac{1}{2} g\,t^2= b_y\,t-\frac{1}{2} g\,t^2\\a_y\,t=b_y\,t\\a_y=b_y\)

The core of a red giant is contracting, but the outer layers are expanding as a result of hydrogen fusion in a shell outside the core

Nuclear fusion of hydrogen to form helium happens evidently in the solar and different stars. It takes area best at extremely high temperatures. Scientists are attempting to find methods to create controlled nuclear fusion reactions on earth.

Researchers at Lawrence Livermore countrywide Laboratory's country-wide Ignition Facility in California have spent over a decade perfecting their method and the feature now showed that the landmark test conducted on eight August 2021 did, in fact, produce the primary-ever successful ignition of a nuclear fusion reaction.

People had been capable of cause fusion, but in methods that might be uncontrolled, like in thermonuclear guns sometimes called hydrogen bombs. Fusion has additionally been proven in laboratories, but below conditions that eat a long way, extra strength than the reaction produces.

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The Drake equation's overall value of 0.1 indicates that one in ten galaxies in the cosmos is home to intelligent life.

The Drake Equation is an effort to include all the factors that would be significant in determining the number of sentient civilizations that were sending radio signals at this specific moment in the Milky Way galaxy. There are seven terms in the Drake Equation. The last component determines how long each civilization lasts on average as a transmitting civilization. The previous six terms are used to calculate the pace at which intelligent civilizations are developing. It is important to emphasize that the Drake Equation only applies to advanced civilizations found inside the Milky Way galaxy. Since they are too far away to be able to hear their radio waves, it does not apply to civilizations in other galaxies.

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Answer:

Linear magnification = 1/3

Explanation:

Given:

Convex mirror

Object's distance from pole = 2f

Find:

Linear magnification

Computation:

Object distance, u = −2f

So,

1/v + 1/u = 1/f

1/v + 1/(-2f) = 1/f

1/v = 1/f + 1/2f

BY taking LCM

1/v = 3 / 2f

v = 2f / 3

Magnification, M = -v / u

So,

Magnification, M = (2f / 3) / 2f

Magnification, M = 2f / 6f

Magnification, M = 2 / 6

Linear magnification = 1/3

Answer: F = 131.7N

Explanation:

You are given the following parameters.

Mass M = 30 kg

Coefficient of static friction μ = 0.5

Ø = 30 degrees

When the person is trying to drag the box with force F, the static frictional force Fs will be acting in the opposite direction.

From the figure attached, resolve all forces into horizontal component and vertical component.

Horizontal component:

Fs - F cosØ = 0

Fs = F cosØ

F cosØ = μN ...... (1)

Vertical component:

N + F SinØ - mg = 0

N = Mg - F SinØ ..... (2)

Substitutes m, g and Ø into the equation 2

N = (30 × 9.8) - F × sin30

N = 294 - 0.5F

Substitute N and coefficient of friction into the equation (1)

F cos30 = 0.5 (294 - 0.5F)

Open the bracket

0.8660F = 147 - 0.25F

Collect the like terms

1.116025F = 147

F = 147/1.116025

F = 131.7 N

Therefore, the minimum force the person needs to have to move the box along the floor is 131.7 N

The potential difference VA - VB can be found using the formula ΔV = -EΔr, where E is the electric field and Δr is the displacement between the two points A and B. Since the electric field is uniform, its magnitude is constant and the displacement Δr can be found using the distance formula as follows: Δr = √[(x2 - x1)^2 + (y2 - y1)^2] = √[(10-1)^2 + (10-1)^2] = √162 ≈ 12.73 m. Therefore, the potential difference VA - VB can be calculated as ΔV = -EΔr = -(5, 4) N/C * (12.73 m) ≈ (-63.6, -50.9) J/C. Since the potential difference is a scalar quantity, the magnitude of the potential difference is √[(63.6)^2 + (50.9)^2] ≈ 80.3 V. Thus, the potential difference VA - VB is approximately -80.3 V.

For the potential difference VA - VB between points A and B, we need to use the formula:

ΔV = -∫(E • dl)

where ΔV is the potential difference, E is the electric field vector, and dl is the infinitesimal displacement vector along the path between the two points.

Since the electric field is uniform (E = (5, 4) N/C), the integral becomes a simple dot product of the electric field and the displacement vector. Let's find the displacement vector:

Displacement vector (d) = B - A = (1, 1) - (10, 10) = (-9, -9)

Now, let's find the dot product of E and d:

E • d = (5, 4) • (-9, -9) = (5 * -9) + (4 * -9) = -45 - 36 = -81 Nm/C

Finally, we can substitute this value into the formula for potential difference:

ΔV = -(-81 Nm/C) = 81 V

So, the potential difference VA - VB is 81 volts.

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Pitch is the perceptual characteristic of sound that can be described as either high or low.

In the realm of sound perception, pitch refers to the perceived frequency of a sound wave. It can be described as either high or low. The pitch of a sound is determined by the frequency of its vibrations, with higher frequencies corresponding to higher pitches and lower frequencies to lower pitches.

This perceptual characteristic allows us to differentiate between sounds and distinguish musical notes or tones. The concept of pitch is crucial in music theory, as it forms the basis for melodies, harmonies, and chords. Understanding pitch helps musicians and composers create compositions with varying degrees of tonality and expressiveness.

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The intensity of electromagnetic waves from the sun just outside the atmosphere of Venus and Mars respectively is

2.65 x 10⁹ W/m² and 0.61 x 10⁹ W/m².

The astronomical data states that the distance between Venus and the Sun is 0.723 AU (1 AU≈1.5 x 10⁸).

The intensity of the electromagnetic waves outside the atmosphere of Venus is then equal to the power of the Sun divided by the surface area of a sphere with a radius equal to the distance between Venus and the Sun, which is equal to:

4.0*10²⁶ W/ 4π(0.723 AU)² = 2.65 x 10⁹ W/m².

The astronomical data states that the distance between Mars and the Sun is 1.524 AU.

The intensity of the electromagnetic waves outside the atmosphere of Mars is then equal to the power of the Sun divided by the surface area of a sphere with a radius equal to the distance between Mars and the Sun, which is equal to:

4.0*10²⁶ W/ 4π(1.524 AU)² = 0.61 x 10⁹ W/m².

Therefore, the intensity of electromagnetic waves from the sun when it emits electromagnetic waves with a power of 4.0*10²⁶ W just outside the atmosphere of Venus and Mars is 2.65 x 10⁹ W/m² and 0.61 x 10⁹ W/m² respectively.

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Answer:

13n pushing left

Explanation:

1563 - 1550

The cells of the s strain feature a capsule, which gives it the ability to elude the mice's immune system.

The body's defense against infection is provided by the immune system, a complex combination of organs, cells, and proteins that also safeguards the cells in the body.

Thus, the cells of the s strain feature a capsule, which gives it the ability to elude the mice's immune system.

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Answer:

distance from the center of the planet

Explanation:

Answer:

The magnitude of the net force is 0.204 N.

Explanation:

The net force acting upon the air glider is:

\( F = ma \)

Where:

m: is the mass of the air glider = 1.5 kg

a: is the acceleration

First, we need to find the acceleration. Since we have the initial and final speed we can calculate the acceleration as follows:

\( v_{f}^{2} = v_{0}^{2} + 2ad \)

Where:

\(v_{f}\): is the final speed = 1.798 m/s

\(v_{0}\): is the initial speed = 1.872 m/s

d: is the distance = 1 m

The acceleration is:

\( a = \frac{v_{f}^{2} - v_{0}^{2}}{2d} = \frac{(1.798 m/s)^{2} - (1.872)^{2}}{2d} = -0.136 m/s^{2} \)            

The minus sing is because the air glider is desaccelerating.

Now, the magnitude of the net force is:

\( |F| = ma = 1.5 kg*0.136 m/s^{2} = 0.204 N \)

Therefore, the magnitude of the net force is 0.204 N.

I hope it helps you!

The moment of inertia of the cylinder about the horizontal axis parallel and tangent to the cylinder is 3MR²/2.

The moment of inertia (Icm) of the cylinder about its symmetrical axis is calculated using the formula MR^2/2, where M represents the mass of the cylinder and R represents its radius.

To find the moment of inertia of the cylinder about the axis parallel and tangent to the cylinder, we can use the parallel axis theorem. According to the parallel axis theorem, the moment of inertia about an axis parallel to and at a distance 'd' from the axis passing through the center of mass is given by:

I = Icm + Md^2

In this case, the axis of rotation is parallel and tangent to the cylinder, so the distance 'd' from the axis passing through the center of mass is equal to the radius 'R'. Substituting the values into the equation:

I = Icm + MR^2

I = MR^2/2 + MR^2

I = (1/2 + 1)MR^2

I = (3/2)MR^2

Therefore, the moment of inertia of the cylinder about the given axis is (3/2)MR^2.

The correct answer is (D) 3MR^2/2.

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Explanation:

a = ?

m = 100kg

Force = 25N

F = ma

a = F/m

a = 25/100

a = ¼

a = 0.25ms—²

deceleration = negative acceleration

deceleration = —0.25ms—²

Answer:

25neuton+100kg =125kg floor sliding

Two solid spheres with identical charge imbalance of 2 C have radii of 5 cm each. A is an excellent conductor, or sphere A. As an insulator, sphere B's charge is dispersed evenly throughout its volume.

A charge is what?

the sum of money required to purchase something, particularly a service: levy/impose/experience a fee You will be charged if you don't cancel the reservation within the allotted time. the cost of sb/sth Do kids pay anything or are they admitted free minimal or modest charge For this service, we charge a small fee.

What does charge mean in physics and chemistry?

August 8, 2017 update. Charge often refers to electric charge in chemistry and physics, which is a conserved feature of some subatomic particles that governs their electromagnetic interaction. An electromagnetic field exerts a force on matter as a result of the physical attribute of charge.

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Answer:

【 In vector form , if angle between velocity vector and acceleration vector is less than 90° and greater than 0° then it is positive acceleration and if it is less than 180° and greater than 90° then it is negative acceleration. If there is no acceleration vector then it is called zero acceleration. 】