Un objeto de 1400 g de masa se mueve bajo la acción de una fuerza constante con una aceleración de 0,5 m/s2 , sobre una superficie horizontal sin rozamiento. Suponiendo que el objeto partió del reposo. Calcula el valor de la fuerza y la velocidad cuando han transcurrido 10 s.

Answer:

If the fan speed increases, then the acceleration increases because a greater fan speed supplies more energy to move the cart.

Explanation:

Answer: 90Kg

Explanation:

The mass of air hitting the sail each second can be calculated as:

mass of air = density of air * volume of air

The volume of air hitting the sail can be calculated as:

volume of air = area of sail * velocity of wind * time

Here, the area of sail is given as 3.8 m², the velocity of wind is 20 ms^-1, and the time is 1 second (since we want to calculate the mass of air hitting the sail each second).

Therefore,

volume of air = 3.8 m² * 20 ms^-1 * 1 s = 76 m³

Using the given density of air of 1.2 kg m^-3, we can calculate the mass of air hitting the sail each second as:

mass of air = 1.2 kg m^-3 * 76 m³ = 91.2 kg

Therefore, the mass of air hitting the sail each second is approximately 90 kg.

Answer:

B

Explanation:

Galactic spiral arms are traced out by Option E. globular cluster regions.

A spiral galaxy typically has a rotating disc with spiral palms that curve out from a dense relevant location. The Milky manner is a spiral galaxy. 4 instructions are used to categorize galaxies: spiral; barred spiral; elliptical and irregular.

Galactic spiral are actively forming stars and comprise a large fraction of all the galaxies inside the neighborhood universe. abnormal galaxies, which have very little dust, are neither disk-like nor elliptical. Astronomers frequently see irregular galaxies as they peer deeply into the universe, which is equal to searching lower back in time.

Spiral galaxies are commonly observed in low-density areas, and very hardly ever in the middle of galaxy clusters. maximum spiral galaxies incorporate a supermassive black hollow inside the middle of the significant bulge. Spiral galaxies tend to be the brightest galaxies in the universe.

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The west coast of the united states receives two high tides and two low tides of varying heights per day.  Tidal pattern is  mixed semidiurnal tidal cycle

Sun and moon exert force on the ocean due to tides moves through the ocean  Tide are very long period waves whose motion is directed by the effect of moon and sun .  Tides originate in the ocean and progress toward the coastlines where they appear as the regular rise and fall of the sea surface.

An area has a diurnal tidal cycle if it experiences one high and one low tide every lunar day. An area has a semidiurnal tidal cycle if it experiences two high and two low tides of approximately equal size every lunar day An area has a mixed semidiurnal tidal cycle if it experiences two high and two low tides of different size every lunar day.

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To calculate the speed of a satellite in circular orbit around a planet with a known radius is the radius of the planet and the mass of the planet.

The speed of a satellite in a circular orbit is determined by the gravitational pull of the planet it orbits. In this case, the radius of the planet is essential because it helps determine the distance between the satellite and the planet's center.

The mass of the planet is also crucial because it affects the strength of the gravitational force acting on the satellite. By combining these two pieces of information, you can calculate the speed of the satellite using the formula for centripetal acceleration, which relates the gravitational force to the satellite's speed and the radius of its orbit.

Calculating the speed of a satellite requires understanding the principles of gravitational force and circular motion. In a circular orbit, the gravitational force acting on the satellite provides the centripetal force needed to keep it moving in a curved path.

The magnitude of the centripetal force is determined by the mass of the planet and the distance between the satellite and the planet's center, which is equivalent to the sum of the planet's radius and the satellite's altitude above the planet's surface.

Using Newton's law of universal gravitation, which states that the gravitational force is proportional to the product of the masses and inversely proportional to the square of the distance between them, you can derive the formula for the speed of the satellite.

By equating the gravitational force to the centripetal force and solving for the satellite's speed, you can express it in terms of the radius of the planet and the mass of the planet.

This calculation assumes a circular orbit, neglecting any atmospheric drag or other external forces acting on the satellite. It also assumes that the mass of the satellite is insignificant compared to the mass of the planet.

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Answer:

I = 0.82A

Explanation:

I = W/V

I = 90W/110V

I = 0.82A

Answer:

\(\huge\boxed{\sf I = 50,000\ Ns}\)

Explanation:

Force = F = 100,000 N

Time = t = 0.5 s

Impulse = I = ?

I = F × t

I = 100,000 × 0.5

I = 50,000 Ns

\(\rule[225]{225}{2}\)

On a Fahrenheit Scale, which is a relative scale unlike Kelvin scale, there are 180 degrees between the freezing and boiling points of water.

There are majorly three scales of temperature generally used for calculations and measurements, which are Celsius, Fahrenheit and Kelvin, which also is the S.I. unit of Temperature.

Fahrenheit and Celsius are relative scales while the Kelvin is an absolute scale.

On the Celsius Scale, there are (100 - 0) = 100 degrees between the freezing and boiling points.

On the Fahrenheit Scale, there are (212 - 32) = 180 degrees between the freezing and boiling points.

Here are some conversions used while calculations in temperature:

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The planetary body with the fastest orbit is Mercury, and the one with the slowest orbit is Neptune.

There is a general pattern between orbital velocity and orbital radius known as Kepler's second law of planetary motion. According to this law, a planet sweeps out equal areas in equal times as it orbits the Sun. This implies that planets closer to the Sun have smaller orbital radii and must travel faster to cover the same area in the same amount of time.

The relationship between orbital velocity and orbital radius can be expressed as v ∝ 1/r, where v represents the orbital velocity and r denotes the orbital radius. This relationship shows that as the orbital radius increases, the orbital velocity decreases. In other words, planets farther from the Sun have slower orbital velocities compared to those closer to the Sun.

This pattern is consistent with observations in our solar system. The inner planets, such as Mercury, have smaller orbital radii and faster orbital velocities, while the outer planets, like Neptune, have larger orbital radii and slower orbital velocities.

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Answer: 490.5 N

Explanation:

In this case, the only two forces acting on the mass are the person's strength (i.e. the force in question) and the weight of the mass.

The sum of the forces is equal to 0. This means that Force (person) = Force (weight).

Fp = Fw = m * gravity

Fp = 50 kg * 9.81 m/s^2

Fp = 490.5 (kg*m/s^2)

Fp = 490.5 N

Answer: well

Explanation:

Assuming the bullet fired is a 32-gram .458 Winchester Magnum then it will take from 3.386 seconds to cover 1500 meters at  20∘C  to 3.404 seconds to cover 1474.6 meters at  0∘C. You cannot assume there is no air resistance without the result being incorrect by about 500 meters.

Answer:

orange it is lol

Explanation:

Answer:

HELP ORANGE DOESNT LOOK LIKE A WORD ANYMORE

Explanation:

Answer: the process by which businesses or other organizations develop international influence or start operating on an international scale.

Explanation:

Answer:

Globalization is the free movement of goods, services and people across the world in a seamless and integrated manner. Globalization can be thought of to be the result of the opening up of the global economy and the concomitant increase in trade between nations.

hope that helps

Answer:

thanksssssssssssssssssssss

Answer:

thank yoooooooooooooooooooooooooooooooooooooooooooooouuuuuuuuuuuuuuu

Explanation:

Answer:

Newton's First Law of Motion states that an object at rest will stay at rest, and an object in motion will continue moving at a constant velocity, unless acted upon by an external force. This law highlights the concept of inertia, which is the tendency of an object to resist changes in its motion. In simpler terms, if no total force is applied to an object, it will either remain still or keep moving in a straight line at the same speed.

Hope this helps

Newton's First Law of Motion is also known as the law of inertia. It states that an object at rest will remain at rest and an object in motion will remain in motion with a constant velocity unless acted upon by an unbalanced force. In other words, a change in motion requires a net force to be applied to an object

The magnitude of the electric potential difference between r₁ = 4.82 m and\(r2 = 6.76 m is A/((r1^3) - (r2^3)).\)

The electric potential difference, also known as voltage, is defined as the change in electric potential energy per unit charge between two points in an electric field. In this case, the electric field magnitude E is given by\(E = A/r^4\), where A is a constant with units of volt-cubic meter.

To calculate the electric potential difference between two radial distances, we need to integrate the electric field from r₁  to r₂ . Since the electric field depends on the radial distance, we can express the electric potential difference as the integral of E with respect to r:

Electric potential difference = ∫(E) dr (from r₁ to r₂ )

Using the given equation for the electric field\(E = A/r^4\), we can rewrite the integral as:

Electric potential difference = \(∫(A/r^4)\) dr (from r₁  to r₂ )

Integrating this equation, we obtain:

Electric potential difference =\([-A/(3r^3)]\) (from r₁  to r₂ )

Substituting the values of r₁ and r₂ into the equation, we have:

Electric potential difference =\([-A/(3r2^3)] + [A/(3r1^3)]\)

Simplifying further, we find:

Electric potential difference = \(A/[(r1^3) - (r2^3)]\)

Therefore, the magnitude of the electric potential difference between r₁  = 4.82 m and r₂  = 6.76 m is \(A/[(r1^3) - (r2^3)]\).

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Answer:

B. an entire population.

Explanation:

Hope this will Help

Answer:

B. an entire population.

Explanation:

CORRECT

The number 12 tells us that the mirror is a concave mirror, as this is the only type of mirror that can produce an image of a real object that is magnified.

An image that has been enlarged is reflected back from a concave mirror's shallow inward curve, which concentrates light rays into a single point.

Contrast this with a convex mirror, which has a curved outer surface that spreads the light rays out, giving the image less clarity.

A magnification of 12 indicates that the size of the image is 12 times larger than the size of the object. Magnification is computed by dividing the size of the image by the size of the object.

Complete Question:

An  object is placed in front of a mirror, and the magnification of the system is 12. What does this number tell you about the nature of the mirror?

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Answer:

b

Explanation:

Bears hibernate in the winter

Answer:

The magnitude of the force is 12 N Upwards

Explanation:

The force on a positive charge will be in the same direction as the field, but the force on a negative charge will be in the opposite direction to the field. Thus the direction of the force is upward.

Given;

magnitude of charge, q = 0.06 C

magnitude of electric field, E = 200 N/C

The magnitude of the force is given by;

F = qE

F = 0.06 x 200 N/C

F = 12 N Upwards

Therefore, the magnitude of the force is 12 N Upwards

Answer:

A. 12N up

Explanation:

According to the dude above me

Wave a carries more energy than wave b. Wave b has a smaller amplitude than wave a.

Those waves carry an amount of energy that can be measured. The energy in a wave is determined by two variables. One is amplitude, which is the distance from the rest position of a wave to the top or bottom. Large amplitude waves contain more energy. Wave A has greater intensity and transfers more energy. Wave B has greater intensity and transfers more energy. Waves that require matter to transfer energy are mechanical waves. The matter through which a mechanical wave travels is called a medium. A mechanical wave travels as energy is transferred from particle to particle in the medium. There are two kinds of mechanical waves. The greater the amplitude of the wave the greater the wave's energy. ... A wavelength will travel only as long as it has the energy to carry. Gamma rays

Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. Electromagnetic waves cause oscillations in electrical and magnetic fields. It is important to remember that all waves transfer energy but they do not transfer matter. For example, if a ball is placed on the surface of a pond when ripples move across it, the ball will move up and down but not outwards with the wave.

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The wavelength of the photon emitted in the quantum jump is 9.91 x \(10^{-8\)m.

f = ΔE / h

The frequency of the emitted photon is related to its wavelength by the equation:

c = λf

where c is the speed of light.

Substituting the values, we get:

f = (12.75 eV) / h = (12.75 x 1.6 x \(10^{-19\)J) / (6.626 x \(10^{-34\) J s) = 3.034 x \(10^{15\) Hz

λ = c / f = (3.00 x \(10^8\) m/s) / (3.034 x \(10^{15\) Hz) = 9.91 x \(10^{-8\) m

Quantum refers to the field of physics that deals with the behavior of matter and energy at a microscopic level, such as atoms and subatomic particles. It is based on the principles of quantum mechanics, which describe the probabilistic nature of particles and their interactions.

Quantum theory has also led to a better understanding of fundamental concepts in physics, such as the uncertainty principle and the wave-particle duality. It has challenged classical ideas and has given rise to new areas of research such as quantum field theory and quantum gravity, which aim to unify quantum mechanics with general relativity.

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Complete Question:

A hydrogen atom in the ground state absorbs a 12.75 eV photon. Immediately after the absorption, the atom undergoes a quantum jump to the next-lowest energy level.What is the wavelength of the photon emitted in this quantum jump?

Given :

A 10.-kilogram object falls freely for a distance of 6.0 meters near Earth's

surface.

To Find :

The total kinetic energy gained by  the object as it falls.

Solution :

Since, only conservative force i.e gravity is applied on the object.

So, its total energy is constant.

Total kinetic energy gained = Total potential energy gained

K.E = mgh ( Here, g is acceleration due to gravity  = 9.8 m/s² )

K.E = 10 × 9.8 × 6 J

K.E = 588 J

Hence, this is the required solution.

The kinetic energy of an object is proportional to the product of its mass and the square of the velocity of the object.

The kinetic energy of the object is 588 J. Option B shows the kinetic energy of the object.

The kinetic energy of an object is defined as the energy that it possesses due to the motion of the object.

Given that the mass m of the object is 10 kg and it falls from the height h of 6 meters near the earth's surface. The object falls vertically, so the gravitational acceleration is applied to it.

The potential energy of the object is given below.

\(PE = mgh\)

\(PE = 10 \times 9.8 \times 6\)

\(PE = 588 \;\rm J\)

The total force applied to the object is due to gravity only. Hence the total energy of the object will be constant. Thus the kinetic energy of the object will be equivalent to the potential energy of the object.

Hence we can conclude that the kinetic energy of the object is 588 J. Option B shows the kinetic energy of the object.

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If a ball is given a push so that it has an initial velocity of 2 m/s down a certain inclined plane, then the distance it has rolled after t seconds is s = 2t + t². Then it takes 11 seconds for the velocity to reach 24 m/s. The correct option is D.

To find the time it takes for the velocity of the ball to reach 24 m/s, we need to solve for the time when the velocity function equals 24 m/s.

The velocity function is the derivative of the distance function, so we'll first find the derivative of the distance function s = 2t + t² with respect to time t:

ds/dt = d/dt(2t + t²)

ds/dt = 2 + 2t

Now we can set the velocity function equal to 24 m/s and solve for t:

2 + 2t = 24

Subtracting 2 from both sides:

2t = 22

Dividing both sides by 2:

t = 11

Therefore, it takes 11 seconds for the velocity to reach 24 m/s.

The correct answer is (d) 11 seconds.

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The length of the guitar string required to produce a fundamental frequency of 256 Hz is approximately 0.79 meters.

To determine the length of the guitar string required to produce a fundamental frequency of 256 Hz, we need to use the formula for the speed of waves in a string:

v = fλ

Where v is the speed of waves in the string, f is the frequency, and λ is the wavelength.

We know that the speed of waves in the particular guitar string is 405 m/s and we want to produce a fundamental frequency of 256 Hz. To find the wavelength, we rearrange the formula as:

λ = v/f

λ = 405/256

λ = 1.58 m

Now that we know the wavelength, we can find the length of the string required to produce this frequency using the formula:

L = n(λ/2)

Where L is the length of the string, n is the number of half-wavelengths that fit in the string, and λ is the wavelength.

Since we want to produce the fundamental frequency (1st harmonic), n = 1. Therefore:

L = (1)(1.58/2)

L = 0.79 m

So, the length of the guitar string required is approximately 0.79 meters.

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Answer:

To construct an electric circuit to light a bulb with maximum brightness, you will need to follow these steps:

1) Assemble the materials: Gather the two dry cells, two bulbs, and the conducting wire.

2) Connect the cells: Place the two dry cells side by side, making sure that the positive terminal of one cell is connected to the negative terminal of the other cell. This will create a series circuit.

3) Connect the bulbs: Attach one end of a length of conducting wire to the positive terminal of one of the dry cells. Connect the other end of the wire to the base of one of the bulbs. Then, attach another length of conducting wire to the base of the first bulb and connect the other end to the negative terminal of the other dry cell.

4) Test the circuit: Touch the base of the second bulb with one hand and the negative terminal of the second dry cell with the other hand. If the bulb lights up, the circuit is complete. If it does not, check the connections to make sure they are secure and that the bulbs are functioning properly.

5) Adjust the brightness: If the bulb is not as bright as you would like, you can try using a different bulb or adding additional cells to the circuit to increase the current. Be aware that adding too many cells can cause the bulb to burn out or create a hazard, so use caution when adjusting the brightness.

In order to build an electric circuit that will light a bulb as brightly as possible, you must do the following steps: Gather the components: assemble the conducting wire, two bulbs, and two dry cells.

Join the cells, and align the positive terminal of one cell with the negative terminal of the other cell by placing the two dry cells side by side.

Connect the bulbs join the positive terminal of one of the dry cells to one end of a piece of conducting wire.

Modify the brightness: If the light isn't as bright as you'd want it to be, you may try using a different bulb or expanding the circuit with more cells to boost current.

Therefore, bright as you'd want it to be, you may try using a different bulb or expanding the circuit.

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Answer:

1609.3

Explanation:

Answer:

b & c

Explanation:

because is my choice

Following is required for an electron to be ejected from metal sample : B.) The light has to have a short enough wavelength (high frequency) for an electron to be ejected from a metal sample.

Photoelectric effect occurs when photons of light strike a metal surface, causing electrons to be emitted. Energy of each photon of light is proportional to its frequency (E = hν, where E is energy, h is Planck's constant, and ν is frequency) and so, only photons with sufficient energy can overcome the binding energy that holds electrons in the metal and eject them.

Option A (high intensity) and option C (low intensity) are incorrect because the intensity of light (i.e., the number of photons per unit area per unit time) does not affect the energy of each photon. Option D (long enough wavelength/low frequency) is also incorrect because longer wavelengths have lower frequencies and lower energies, which would not be sufficient to eject electrons from metal.

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