A motorbike is travelling at 3m/s, and accerlates over 3.5s to reach a speed of 10m/s What was the acceleration of the bike

The angular resolution of a telescope receiving dish for the 21.1 cm line would be approximately 1.21 degrees.

The 21.1 cm line is an important emission line in radio astronomy because it corresponds to hyperfine transitions in hydrogen. This line is used by astronomers to study the interstellar medium, including the distribution of neutral hydrogen gas in our galaxy and beyond.
To determine the angular resolution of a telescope receiving dish for the 21.1 cm line, we need to use the formula:
θ = λ / D
where θ is the angular resolution in radians, λ is the wavelength of the radiation, and D is the diameter of the telescope dish.
The wavelength of the 21.1 cm line is 0.211 meters. If we assume a telescope dish diameter of 10 meters, then the angular resolution would be:
θ = 0.211 / 10 = 0.0211 radians
To convert this to degrees, we can use the formula:
θ (degrees) = θ (radians) x (180 / π)
where π is the mathematical constant pi.
Plugging in the values, we get:
θ (degrees) = 0.0211 x (180 / π) = 1.21 degrees
Therefore, the angular resolution of a telescope receiving dish for the 21.1 cm line would be approximately 1.21 degrees.

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Potentially, optical scattering can be employed to create a solids content assessment instrument that is useful for managing and monitoring tailings ponds.

This bench-scale study looked into the best laser wavelengths for real-time in situ use in oil sands tailings in the visible (405, 520, and 658 nm) and near infrared (980, 1310, and 1550 nm) ranges. In comparison to the visible wavelengths, the near infrared wavelengths generally showed greater sensitivity across the full test range. Additionally, oil sands tailings' remaining bitumen has a tendency to absorb visible wavelengths, interfering with the scattering light signals and resulting in unreliable results. The 1550 nm wavelength in particular demonstrated an almost linear sensitivity of the light scattering with the change in solids concentration due to a sufficiently strong water absorption.

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Answer:

Explanation:

from t = .3 to t = .33 , velocity appears to be uniform .

uniform velocity = .22 m /s

displacement will be area of the v-t graph which is a rectangle .

= .22 x ( .33 - .3 )

= .22 x .03

= 66 x 10⁻⁴ m

= 6.6 mm .

Answer:

*******

Explanation:

is obviously the correct answer they are both so different yet so alike

wrong question someone just comment the right answer ;-;

Answer: b

Explanation:

It is based on an observation of a natural phenomenon can be answered by a scientific investigation. Thus option B is correct.

Scientific investigation can be defined as a continuous process involving different steps to find out the answer to a specific scientific question by using scientific method.

The basic steps includes observation, which can be further used to develop, design of experiment and improve a hypothesis and an explanation based on an observed phenomenon.

There are different steps involved  in Scientific Investigation such as

• Observation is the first step of the scientific investigation to observe the process involve in  the step of inspection and conduction of  the investigation by asking questions.

• Asking Questions is purely based on observation and it make sure that every detail is already known and a query existing can be solved quickly.

• making of a Hypothesis involves proper explanation of  the query and it is most important part of the scientific investigation, it can come from a phenomenon.

• conclusion involves to the information drawn out, follow a proper scientific or a mathematical statement followed by Communication of the information from the investigation

Thus option B is correct.

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Answer:

La carrera es importante para ganarse la vida, el respeto en la sociedad y cumplir el sueño.

Explanation:

La carrera es importante por las siguientes razones principales

a) Es una forma de ganar para alimentarse a sí mismo y a su familia y asegurar su futuro.

b) Permite ser considerado como una persona respetable en la sociedad.

c) Es importante ya que también brinda la oportunidad de cumplir el sueño.

Answer:

18 meters

Explanation:

Answer:All three balls have the same initial speed, so they all have the same horizontal component of velocity. However, the vertical component of velocity and the angle of projection affect how long it takes for each ball to hit the ground and at what speed.

Assuming all three balls are thrown from the same height, the ball that is thrown at the smallest angle above the horizontal will hit the ground with the greatest speed. This is because the vertical component of velocity is the greatest for this ball, and it has the longest distance to fall.

To see this, consider the equations for the vertical and horizontal components of velocity:

v_y = v_i * sin(theta)

v_x = v_i * cos(theta)

where v_y and v_x are the vertical and horizontal components of velocity, respectively, v_i is the initial speed, and theta is the angle of projection.

The time it takes for the ball to hit the ground can be found using the equation:

t = 2 * v_i * sin(theta) / g

where g is the acceleration due to gravity.

The vertical velocity of the ball just before it hits the ground is:

v_y_final = v_y_initial - g * t

Substituting the expressions for v_y and t and simplifying, we get:

v_y_final = v_i * sin(theta) - 2 * v_i * sin(theta) = -v_i * sin(theta)

The negative sign indicates that the ball is moving downward.

Since the initial speeds are the same for all three balls, the ball with the smallest angle above the horizontal will have the greatest sin(theta) and hence the greatest final vertical velocity. Therefore, it will hit the ground with the greatest speed.

Explanation:

When three balls are thrown from a cliff with the same speed but at different angles, they will all hit the ground with the same final speed since they are all affected by the same gravitational acceleration.

However, the angles at which the balls are thrown will determine their velocities in the horizontal and vertical directions, which will affect their paths and trajectories.

The ball that is thrown at a shallower angle, closer to the horizontal, will have a greater horizontal velocity component, allowing it to travel further along the ground before hitting the ground.

The ball that is thrown at a steeper angle, closer to the vertical, will have a greater vertical velocity component, allowing it to reach a higher maximum height before eventually hitting the ground.

Thus, while all three balls will hit the ground with the same final speed, the ball that was thrown at the shallower angle will have the greatest speed just before it hits the ground, due to its higher horizontal velocity component.

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The electrical force on the point particle q inside a uniformly charged nonconducting spherical shell is least when the point particle q is at the center of the sphere.

According to Gauss's Law, the electric field inside a uniformly charged spherical shell is zero, regardless of the charge of the particle placed inside.

This means that the force on the particle is solely due to the interaction with the charges present on the surface of the shell.

When the point particle q is located off-center inside the shell, the charges on the surface of the shell will be closer to one side of the particle than the other.

This creates an electric field in the direction towards the closer charges, resulting in a net force on the particle. However, if the particle is located at the center of the shell, the electric forces from all the charges on the surface will cancel out, resulting in no net force on the particle.

Therefore, the electrical force on the particle q is least when it is at the center of the uniformly charged nonconducting spherical shell.

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Answer:

1) Used in optical instruments such as telescopes.

2) Used to form mirages

Explanation:

1) Perhaps the simplest example of this is the astronomical refractor telescope with a right-angle eyepiece holder. Astro scopes mostly point at things high in the sky, but it is inconvenient to place your eye low to look up through the scope, so the light path is bent 90 degrees just before the eyepiece. This can be done with a mirror, but using a simple 45 degree prism (internal angles 45, 45, and 90 degrees) will do the 90 degree bend more efficiently.

2) So when a light pass from cold air to hot air light tends to bend from its path which is known as refraction. As the light get refracted it reaches to a point where the light tends to form 90 degree angle.

A total of 1.3x10³⁶ particles are ejected from the Sun every second by the solar wind.

The solar wind is a jet of charged particles that the Sun's corona, or upper atmosphere, releases into space. Electrons, protons, and alpha particles with kinetic energies ranging from 0.5 to 10 keV make up the majority of this plasma. The solar wind plasma is made up of a variety of substances that are also present in the solar plasma, including traces of heavy ions and atomic nuclei like C, N, O, Ne, Mg, Si, S, and Fe. Other nuclei and isotopes including P, Ti, Cr, 54Fe and 56Fe, 58Ni, 60Ni, and 62Ni are also present in smaller amounts. The interplanetary magnetic field is superimposed with the solar-wind plasma.

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Answer:

1

Explanation:

How many digits are in front of the decimal in scientific notation?

The refractive index (n) of a medium can be defined as the ratio of the speed of light (c) in a vacuum to the speed of light (v) in the medium. Mathematically, we can express the refractive index as

n=c/v--- (1)

In part (a) of the question, we were given the speed of light (v) in a medium as a function of the wavelength of the light (λ). We know that the speed of light in a vacuum is a constant and is equal to c=3 × 108 m/s.

Therefore, using equation (1), we can write the expression for the refractive index (n) as

n = c/v = c/(c/λ0) = λ0/c--- (2)

where λ0 represents the wavelength of the light in a vacuum. Therefore, the expression for n in terms of λ0 is given as:

n = λ0/c.

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The spacing between the two lenses should be equal to the sum of their focal lengths. The width of the exiting beam is equal to the ratio of the focal lengths of the two lenses multiplied by the width of the entering beam.

A). To determine the spacing between the two lenses, we can use the thin lens formula:

1/f1 + 1/f2 = 1/d

The size of the beam is unchanged. The magnification of the beam expander is given by:

M = -f2/f1

where the negative sign indicates that the image is inverted.

If we substitute the expression for M into the thin lens formula and solve for d, we get:

d = f1 + f2

B). The width of the exiting laser beam can be determined using the magnification formula:

M = -f2/f1

The width of the exiting beam, w2, is related to the width of the entering beam, w1, by:

w2 = |M| * w1

Substituting the expression for M, we get:

w2 = |f2/f1| * w1

Magnification is a term used to describe the apparent size of an object when viewed through a lens or optical instrument. It is the ratio of the size of an object as viewed through the lens to its actual size. For example, if an object is 1 cm in size and appears to be 5 cm when viewed through a magnifying lens, the magnification is 5x.

In astronomy, magnification is used to observe distant celestial objects such as stars, planets, and galaxies. In photography, magnification is used to zoom in on subjects and capture fine details. Magnification can be achieved through various optical instruments such as magnifying glasses, telescopes, microscopes, and cameras. The level of magnification depends on the type and quality of the lens or instrument used.

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Complete Question:

A common optical instrument in a laser laboratory is a "beam expander". Light goes through a combination of a diverging lens (f1) and a converging lens with a larger focal length (f2 > |f1|). The parallel rays of a laser beam of width w1 enters the diverging lens of the beam expander.

a) For what spacing d between the two lenses does the parallel laser beam exit from the right? Justify your answer with a ray tracing.

b) What is the width of the exiting laser beam? Give an expression in terms of w1, f1, f2.

Electric potential energy of that charge at origin  = 40 V

Electric potential, the amount of work needed to move a unit charge from a reference point to a specific point against an electric field.

The electric potential energy of any given charge or system of changes is termed as the total work done by an external agent in bringing the charge or the system of charges from infinity to the present configuration without undergoing any acceleration.

Electric potential energy is defined as the total potential energy a unit charge will possess if located at any point in the outer space.

Potential energy at a point = change in electric potential to bring it from infinity to that point

Potential energy = Potential at that point - Potential at infinity

conventionally , potential at infinity is taken as zero

Potential energy = Potential at that point

hence , Potential energy of that charge at origin = Electric Potential at the origin

Potential energy of that charge at origin  = 40 V

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Observations in our solar system support the conclusion that collisions between portions of material in the solar system cancel their up-and-down motions, leaving them revolving in a thin disk around the Sun. Observations do not support the conclusion that objects in the far outer solar system orbited so slowly that they would have experienced few collisions, leaving behind small, solid bodies.

The Nebular Condensation Theory proposes that our solar system is formed from a rotating disk of gas and dust called the solar nebula. According to this theory, collisions between portions of material in the solar system canceled their up-and-down motions, resulting in a thin disk of material revolving around the Sun. Observations of our solar system, such as the flattened shape of the planetary orbits and the presence of a protoplanetary disk around young stars, support this conclusion.

Additionally, observations suggest that large collisions can change the rotation directions of planets. This is evident in the case of Uranus, which has an extreme axial tilt likely caused by a past collision. Other examples of planets with tilted axes or unusual rotation patterns also support this conclusion.

However, observations do not support the conclusion that objects in the far outer solar system orbited slowly enough to experience few collisions, resulting in small, solid bodies. Instead, the outer solar system is known to contain a significant population of icy objects, such as dwarf planets and comets, which have likely experienced numerous collisions throughout their history. These collisions have shaped their orbits, compositions, and sizes.

Overall, while some conclusions of the Nebular Condensation Theory plus collisions are supported by observations in our solar system, others do not find substantial evidence in favor.

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\(\\ \rm\longmapsto I=\dfrac{Q}{t}\)

\(\\ \rm\longmapsto Q=It\)

\(\\ \rm\longmapsto Q=2.72\times 9.88\)

\(\\ \rm\longmapsto Q=26.87C\)

The amount of charge that flows past a point in the wire during that time is approximately 26.8976 Coulombs.

Electric charge is quantized, meaning it exists in discrete amounts and is measured in coulombs (C). The elementary charge, represented by the symbol "e," is the charge of a single proton or electron, approximately equal to 1.602 x 10^-19 coulombs. Protons carry a positive charge, while electrons carry an equal but opposite negative charge.

When electric charges are stationary, they create an electric field around them. When charges are in motion, they produce a magnetic field in addition to the electric field, leading to electromagnetic effects.

Charge is a fundamental property of matter that determines its interaction with electric and magnetic fields and is crucial to understanding and explaining various electrical and electromagnetic phenomena in the natural world.

To calculate the amount of charge that flows past a point in the wire use the equation:

Q = I * t

Where:

Q is the charge (in Coulombs)

I is the current (in Amperes)

t is the time (in seconds)

Given:

Current (I) = 2.72 A

Time (t) = 9.88 s

Substitute these values into the equation to find the charge:

Q = I t

Q = 2.72 A * 9.88 s

Calculating the product:

Q = 26.8976 C

Therefore, the amount of charge that flows past a point in the wire during that time is approximately 26.8976 Coulombs.

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Answer:

Density=mass/volume

so, volume=mass/density

Answer:

A comet

Explanation:

The picture is of an elliptical orbit of a comet. You can tell it is a comet because of the tail. Also, I just took the test and it was a comet.

Answer:the hose would explode and you would mess the water system out

Explanation:

Answer:

If you partially block the stream of water coming out of a hose, the stream of water would shoot farther then before. This is because of the opening area of nozzle. The pressure of the water forces the stream to shoot out as it rushes through the small opening. Because of this, the water can shoot farther then before. This is why a nozzle would make a rocket more effcient as the rocket would be able to fly farther distances.

A. the 22 W lightbulb draws 0.2 A of current when it is plugged directly into a 110 V outlet.

B. the internal resistance of the lightbulb is approximately 550 ohms.

A. The power (P) drawn by an electrical device can be calculated using the equation:

P = V x I

where P is power in watts (W), V is voltage in volts (V), and I is current in amperes (A).

In this case, a 22 W lightbulb is plugged directly into a 110 V outlet. To determine how much current it draws, we can rearrange the equation to solve for I:

I = P / V

Plugging in the values given, we get:

I = 22 W / 110 V = 0.2 A

Therefore, the 22 W lightbulb draws 0.2 A of current when it is plugged directly into a 110 V outlet.

B.

To determine the internal resistance (r) of the lightbulb, we can use Ohm's law:

V = IR + V_internal

where V is the voltage across the lightbulb, I is the current flowing through the lightbulb, r is the internal resistance of the lightbulb, and V_internal is any additional internal voltage drop within the lightbulb.

Since the lightbulb is plugged directly into a 110 V outlet, V is equal to 110 V, and we know from part A that I is 0.2 A. Therefore, we can rewrite the equation as:

110 V = 0.2 A x r + V_internal

To solve for r, we need to know the value of V_internal, which is not given in the problem. However, we can make an assumption that the internal voltage drop is negligible compared to the voltage across the lightbulb, which is often the case for simple resistive devices like lightbulbs.

Assuming V_internal is negligible, the equation simplifies to:

110 V = 0.2 A x r

Solving for r, we get:

r = 110 V / 0.2 A = 550 ohms

Therefore, the internal resistance of the lightbulb is approximately 550 ohms.

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44.76

There are two options for formulas to use here, both work.

0=(m1)(V1f)+(m2)(V2f)

Or

(m1)(V1f)=—(m2)(V2f)

Both formulas should give you the answer of 44.763514, which can be rounded to the specifications of whatever you need it for.

Blessings in the Name of Jesus Christ our Lord!

The water analogy can be considered a useful but imperfect tool for describing the nature of the Trinity. It is true that water can exist in three different states - solid (ice), liquid (water), and gas (steam) - which can help us grasp the concept of three distinct yet interconnected entities within the Trinity (Father, Son, and Holy Spirit). However, this analogy has limitations, as it does not fully convey the complexity and uniqueness of the Trinity.

The water analogy might imply modalism, the belief that God takes on different "modes" or forms at different times, which is not an accurate representation of the Trinity. In Christianity, the Father, Son, and Holy Spirit are believed to be distinct persons that exist simultaneously, not merely different states or forms of a single being.

Additionally, the analogy could be misunderstood as suggesting that the three persons of the Trinity are divisible, just like the three states of water. However, the persons of the Trinity are indivisible, sharing the same divine essence.

In conclusion, while the water analogy may be helpful in understanding the concept of the Trinity to some extent, it is important to recognize its limitations and not to rely on it as a complete explanation for this complex theological concept.

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Answer: C and A

Explanation: a p e x :)

Fllw me on ig (Kyojei)

Recording it in digital, so they do not change during transmission and records can be stored in the cloud, making them accessible to her from anywhere can aids for keeping the records online. The correct options are A and C.

Digital storage helps in storing large amounts of data in a small amount of space and easily sharing information with anyone else. Digital items are simple to edit, enhance, or crop.

Cloud storage is a data deposit model wherein digital data including such documents, photos, and so on are stored on virtual or cloud servers hosted by external parties.

It enables you to store data on an offsite storage system and access it whenever necessary.

Thus, the correct options are A and C.

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The student is correct; as the distance of the stations from the earthquake increases, the arrival time between P - Wave and S- Wave increases.

The relationship between the arrival time and the distance from the Earthquake can be deduced as follows;

For station L with the least distance;

the arrival time between the P - wave and S - Wave is 1.5 min

For station M with the greater distance than station L;

the arrival time between the P - wave and S - Wave is 3 min

For station N with the greater distance than station M;

the arrival time between the P - wave and S - Wave is 5 min

From the illustration above, it is obvious that as the distance of the stations from the earthquake increases, the arrival time between P - Wave and S- Wave increases. Hence we can conclude that the arrival time of the waves is proportional to the distance of the stations from he earthquake.

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Answer:

“They may feel colder but that's only an illusion,” Dr. Begley says. “Copper mugs actually absorb heat from the room faster than a glass.” Copper is an excellent thermal conductor, meaning it transfers heat from hot sources (like the room or your hand) to cold sources (like your drink) very efficiently.

Explanation:

The length of the organ pipe that is open at both ends is also 140 m.

To solve this problem, let's denote the length of the pipe that is open at both ends as L1 and the length of the pipe that is open at one end as L2. We are given that L2 is 140 m.

The beat frequency is caused by the interference between two sound waves with slightly different frequencies. In this case, we are comparing the second lowest frequency of each pipe.

The fundamental frequency (first harmonic) of a pipe open at both ends is given by:

f1 = v / (2L1)

where v is the speed of sound.

The second lowest frequency (second harmonic) of a pipe open at both ends is given by:

f2 = 2f1 = 2v / (2L1) = v / L1

The fundamental frequency (first harmonic) of a pipe open at one end is given by:

f3 = v / (4L2)

The second lowest frequency (second harmonic) of a pipe open at one end is given by:

f4 = 3f3 = 3v / (4L2)

Given that the beat frequency caused by f2 and f3 is equal to the beat frequency caused by f4, we can set up the following equation:

|f2 - f3| = |f4|

Substituting the expressions for f2, f3, and f4, we have:

|v / L1 - v / (4L2)| = 3v / (4L2)

Simplifying:

|4L2 - L1| = 3L1

Now we can substitute L2 = 140 m:

|4(140) - L1| = 3L1

Simplifying further

560 - L1 = 3L1

4L1 = 560

L1 = 140 m

Therefore, the length of the organ pipe that is open at both ends is also 140 m.

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Answer:

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 5200 × 25

We have the final answer as

Hope this helps you

Answer:

Some examples of external stressors include:

Major life changes. These changes can be positive, such as a new marriage, a planned pregnancy, a promotion or a new house. ...

Environment. The input from the world around us can be a source of stress. ...

Unpredictable events.

Workplace.

Social.

Explanation: