A wave has a speed of 23 m/s and a frequency of 13 Hz. What is the wavelength?

The beginning of solar system development is most likely indicated by the big bang theory. An explanation for how the universe grew from a high density starting state is provided by the Big Bang theory.

And temperature. The evolution of the observable universe from the earliest known times through its later large-scale form is explained by a variety of cosmological models of the Big Bang theory. The Sun and the things that circle it make up the solar system, which is gravitationally bound. The gravitational collapse of a massive interstellar molecular cloud gave it birth 4.6 billion years ago. 99.86% of the system's mass is in the Sun, with the planet holding the majority of the remaining mass.

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The nebular hypothesis is the most widely recognized cosmogony theory to explain how the Solar System started and evolved (as well as other planetary systems). It implies that gas and dust orbiting the Sun are what created the Solar System.

Over 70 different types of meteorites have undergone radiometric dating to ascertain their ages. The findings suggest that between 4.53 and 4.58 billion years ago, the Solar System and meteorites both began to develop.

Scientists believe that the formation of terrestrial planets like Earth several billion years ago resulted from the coalescence of hot blobs of molten rock and metal from dust and gas. Before they developed into separate planets, they went through four stages of development: differentiation, cratering, flooding, and surface evolution.

The solar nebula

4.6 billion years ago, the solar nebula, a cloud of gas and dust, gave rise to the Sun and the planets.

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so the resulting force of all the 3 forces is 11.7 N.

As shown in the figure below ther is 3 forces \(F_1 ,F_2 ,F_3\) are the forces so that the diagram is along the directions given in the question

so \(F_1\) = 3 j^ ( where j^ is unit vector along y axis)

\(F_2\) = 6 cos 45  i^ + 6 sin 45 j^ ( where i^ is unit vector along x axis)

\(F_3\)  = - 5 sin 30 i^ + 5 cos 30 j^

so the resultant force = \(F_1+ F_2 +F_3\)

=> 3 j^ + 4.24 i^ + 4.24 j^ + 4.33 j^ - 2.5 i^

=> 1.74 i^ + 11.57 j^

so resultant force = \(\sqrt{1.74^2 + 11.57^2}\)

=> \(\sqrt{136.89}\)

=> 11.7 N

so the resulting force of all the 3 forces is 11.7 N

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Answer:

Primero, definimos el desplazamiento como la distancia entre la posición final y la posición inicial.

Así, si comenzamos abajo, luego subimos la escalera, y luego bajamos, la posición final y la posición inicial serán la misma

por lo que el desplazamiento es igual a cero.

La medida recorrida es el espacio total recorrido.

Es decir, si entre el principio y el final de la escalera hay una distancia D.

La persona que sube y baja, recorre esta distancia dos veces.

Entonces cuando una persona sube y baja la escalera, la medida de su trayectoria será 2*D.

The primary effect of increasing the surface tension of the liquid is to increase the capillary force. Capillary forces arise due to the combined effects of adhesion and cohesion

When the surface tension of the liquid increases, the capillary rise will increase. It is because the increase in surface tension leads to an increase in the force that pulls the liquid upwards in a tube. is as follows;If you place a capillary tube in a beaker filled with water, the water surface inside the tube rises slightly higher than the level outside the tube.

This rise in water level is called capillary rise. The capillary rise is caused by the attraction between the molecules of the water and the molecules of the glass tube.This attraction is called capillary force or capillary action. The capillary force is due to the combined effect of adhesive and cohesive forces. The adhesive force is the attraction between the molecules of the liquid and the molecules of the solid surface, while the cohesive force is the attraction between the molecules of the liquid.

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Answer:

This has all the answer (Data sheet, graph, answers to the questions, and the summary) :)

Answer:

Well AM/Fm is digitally using soundwaves for cars through signal, which we cant hear without one (radio). Concerts are in real life and use wavelegnths that we hear because it bounces off overytihing.

Explanation:

Answer:

 W = 500 J

Explanation:

Work is defined by

         W = F . x

if we develop the dot product

         W = F x cos θ

where is the angle between the force and the displacement, in this case the angle is zero, so cos 0 = 1

          W = F x

indicate that each person applies a force of 500 N, so the total force is

         F = 1000 N

let's reduce the distance to the SI system

          x = 50 cm = 0.50 m

let's calculate

          W = 1000 0.50

          W = 500 J

the resistance of the wire to the nearest tenth of an ohm is 2Ω.

What is resistance?

resistance is a measure of the opposition to current flow in an electrical circuit. resistance always measure in ohm.It design with R.A resistor is a device designed to produce resistance. resistor can be used to the  limit current, divide voltage, or generate heat.

Sol-Potential difference (V) = current (I) * Resistance (R)

V = IR

I = 2.0A

V = 10v

So the

R = ?

V = IR

R = V / I

R = 10 / 2

R = 2Ω

Thus the,

The resistance across the wire is 2Ω.

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A very long-lived magma source located deep in the mantle is called a hotspot.

Magma is the term used to describe a molten rock that is found within the earth's crust. Magma is the material from which igneous rocks are formed.

During volcanic eruptions, magma from within the earth's crust is released onto the surface and is called lava.

The flow of lava when cooled results in the formation of extrusive igneous rocks.

The flow of magma within the earth's crust is by means of conventional currents that are set up as a result of the magma being less dense than the surrounding rocks.

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Answer:

b.

Explanation:

Answer:

b

Explanation:

when moving charged bodies move there is changing magnetic flux linking in the particles and thus magnetic field is created between them

The current the resistors in series are the same but their voltage will be different. In the case of parallel resistors the voltage will be the same and current will be different.

Resistance in a circuit is the hindrance to current . According to Ohm's law, resistance is the ratio of voltage to the current.

In a series circuit all the components are connected in series. Whereas in a parallel circuit the components are connected in parallel.

In a series circuit the output current from one resistance is the input current of the next resistor. Hence, current through all resistors are the same but their voltage differs.

Thus, total resistance R = R1 + R2 + R3 + …

In parallel circuits all the resistors have the same voltage but they differ in current.

then the total resistance R = 1/R1 + 1/R2 + 1/R3 + ..

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The gradient of River X expressed in m/km is 20 m/km.

Any line or curve's gradient will reveal the pace at which one variable is changing in relation to another. In all mathematical fields, this idea is crucial.

By dividing the difference between the -coordinates by the difference between the -coordinates, the gradient of a line is calculated. This can also be referred to as the vertical divided by the horizontal or the change in divided by the change in.

A river's gradient is a measurement of how steeply it declines over a specific distance.

Gradient = vertical change / horizontal distance = 20 meters / 1 kilometer = 20 m/km

Therefore, the gradient of River X expressed in m/km is 20 m/km.

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The Nutrition Facts panel must include the grams of monounsaturated fat, grams of total fat, and total calories from saturated fat.

a. The total calories from trans fat are not required to be included in the Nutrition Facts panel. Trans fat is listed separately under "Total Fat" and does not have its own specific calorie value.

b. The grams of monounsaturated fat are required to be included in the Nutrition Facts panel. Monounsaturated fat is a type of fat that is beneficial for health, and its quantity is provided to help consumers make informed choices.

c. The grams of total fat are required to be included in the Nutrition Facts panel. Total fat represents the sum of all types of fats present in the food product.

d. The total calories from saturated fat are required to be included in the Nutrition Facts panel. Saturated fat is a type of fat that is associated with an increased risk of certain health conditions, and providing the calorie value helps consumers monitor their intake.

Therefore, the Nutrition Facts panel must include b. grams of monounsaturated fat, c. grams of total fat, and d. total calories from saturated fat.

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The unit weight of water refers to the amount of mass per unit volume of water. In the metric system, this is commonly expressed in kilograms per cubic meter (kg/m3).

In conclusion, the unit weight of water is an important concept in many fields and is widely used to express the mass per unit volume of water. In the metric system, it is commonly expressed in kilograms per cubic meter (kg/m3), and its value can vary depending on temperature and pressure.

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The hydrogen atom emission spectra provide information about the specific wavelengths or colors of light emitted when electrons transition between energy levels.

The Rydberg plot, based on the Rydberg formula, is a graphical representation of these spectral lines and helps determine the relationship between the energy levels and the observed wavelengths or frequencies.

The hydrogen atom emission spectra and the Rydberg plot are both important concepts in atomic physics that describe the behavior of the hydrogen atom and the relationship between the energy levels of its electrons.

The hydrogen atom emission spectra refers to the pattern of light emitted when the electrons in a hydrogen atom transition between different energy levels. When an electron moves from a higher energy level to a lower energy level, it releases energy in the form of photons of specific wavelengths or colors. These emitted photons create a characteristic set of spectral lines in the electromagnetic spectrum.

The spectral lines observed in the hydrogen atom emission spectra are classified into different series: the Lyman, Balmer, Paschen, Brackett, and Pfund series. Each series represents a specific range of wavelengths or energy transitions. The Balmer series, for example, includes the visible spectral lines and is commonly observed in laboratory experiments.

The Rydberg plot, named after the Swedish physicist Johannes Rydberg, is a graphical representation of the wavelengths or frequencies of the spectral lines in the hydrogen atom emission spectra. The Rydberg formula provides a mathematical relationship between the wavelengths/frequencies of the spectral lines and the energy levels of the hydrogen atom:

1/λ = \(R_H * (1/n_1^2 - 1/n_2^2)\)

where λ is the wavelength of the emitted light, R_H is the Rydberg constant for hydrogen (approximately 1.097 × \(10^7\) m⁻¹), and n1 and n2 are positive integers representing the initial and final energy levels, respectively.

By plotting the reciprocals of the observed wavelengths or frequencies against the corresponding energy level transitions, the Rydberg plot can be obtained. The Rydberg plot allows scientists to determine the Rydberg constant and study the energy structure of the hydrogen atom.

In summary, the hydrogen atom emission spectra provide information about the specific wavelengths or colors of light emitted when electrons transition between energy levels. The Rydberg plot, based on the Rydberg formula, is a graphical representation of these spectral lines and helps determine the relationship between the energy levels and the observed wavelengths or frequencies.

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The current through the 2Ω resistor is 9.5A

The terminal voltage is 10.8 V

a) The voltage V across 8 Ω resistor is V = I*R = 8*0.5 = 4V

the current through 16Ω resistor is then I = V/R = 4/16 = 0.25 A

the current through 20Ω resistor is then I = current through 8Ω resistor + current through 16Ω resistor = 0.75 A

voltage across 20Ω is V = I*R = 0.75*20 = 15 V

the source voltage is Vs = V8 + V20 = 4+15 = 19 V

therefore the current through 2Ω resistor is

I = V/R = 19/2 = 9.5 A

b) The terminal voltage is

Vterminal = VR = I*R = 0.450*24 = 10.8 V

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Answer:

\(here \: answer\)

F » 18,000 N

Explanation:

Given :

Mass (m) = 2,000 kg

Acceleration (a) = 9 m/s2

To Find :

the formula for force

F = m • a

F = 2,000 • 9

F = 18,000 N

1. They have evolved their leaves into spikes for minimum water loss through transpiration.

2. They have a waxy layer for minimum water loss.

3. They have thick walls for minimum water loss.

4. They can take water from atmosphere.

5. They change the photo energy from Sun into an intermediate stage and store it, so that they can make food even in night.

Answer:

Abiotic referfers to non-living and biotic factors are living or once living

Explanation:

Answer:

0

Explanation:

acellus

Earth has a definite orbit within the solar system whose the orbit is mainly a result of the mass of the Sun.

An orbit is defined as the regular, repeating path that one object in space takes around another while an object in an orbit is called a satellite which may be natural, such as the Earth or the Moon. According to the height of satellites from the earth, these orbit are classified as

Most of the weather and some communications satellites will tend to have a high Earth orbit which is farthest away from the surface. The main difference between orbit and orbitals is that the former is defined as a fixed path of electron revolutions, whereas the latter is defined as an uncertain region with a high probability of finding an electron.

Therefore, the Earth has a definite orbit within the solar system whose the orbit is mainly a result of the mass of the Sun.

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Answer:It is regarded as impartial because it is based on established biological science. It has shed light on the causes of some conditions, including GPI and Alzheimer's disease, an organic condition that causes elderly people to become confused. Treatment is convenient, inexpensive, and simple to administer when compared to other options.  

Disability is viewed as something 'wrong' with a person's body or mind in the medical model. The medical model has been chastised for treating the impairment as the most important aspect of the person and implying that the person is powerless to change it.

Explanation:

Answer:

Taking water and oxygen from Earth is rather expensive and hard to do.

Explanation:

Without water and oxygen, travel to other planets is basically impossible

Answer:

Atomic nuclei

Explanation:

Gamma rays have a wavelength that ranges from 10 picometers to 100 femtometers, which makes them incredibly small. To put this into perspective, a picometer is one-trillionth of a meter, and a femtometer is one-quadrillionth of a meter. Objects of a similar size to gamma rays include atomic nuclei, which are typically on the order of femtometers in diameter.

The net electric field at point P is zero.

To find the electric field at point P, we need to use the formula E = kq/r^2, where k is the Coulomb constant (9 x 10^9 Nm^2/C^2), q is the magnitude of the charge (1.1 x 10^-11 C in this case), and r is the distance from the charge to point P (5 x 10^-3 m). Since there are two charges of equal magnitude but opposite signs, the total electric field at P is the vector sum of the individual electric fields due to each charge. The direction of the electric field is from positive to negative, so the two electric fields will have opposite directions and cancel each other out.

Therefore, the net electric field at point P is zero.
The Electric Field (E) at point P can be found using the formula E = kQ/r^2, where k is the electrostatic constant (8.99 x 10^9 Nm^2/C^2), Q is the charge magnitude (1.1 x 10^-11 C), and r is the distance from each charge to point P (0.5 x 10^-2 m).

Since both charges have equal magnitudes and point P is located exactly halfway between them, their Electric Fields at point P will cancel each other out due to their opposite directions. Therefore, the net Electric Field (E) at point P will be 0 N/C.

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Answer:

IMA = 3

Explanation:

Given the following data;

Distance covered by the effort or output distance = 120 m

Distance covered by the load or input distance = 40 m

To find the ideal mechanical advantage (IMA);

Mathematically, IMA is given by the formula;

\( IMA = \frac {distance \; over \; which \; the \; effort \; is \; applied}{distance \; the \; load \; travels} \)

Substituting into the equation, we have;

\( IMA = \frac {120}{40}\)

IMA = 3

Therefore, the ideal mechanical advantage (IMA) of this ski lift is 3.

NB: The ideal mechanical advantage has no units.

The frequency of the beam of light with a wavelength of 420 nm is 7.14×10¹⁴Hertz (2nd option)

Frequency of light wave is related to wavelength and speed of the light according to the following formula:

Velocity (v) = wavelength (λ) × frequency (f)

From the question given above, the following data were obtained:

The frequency can be obtained a as follow:

Velocity (v) = wavelength (λ) × frequency (f)

3×10⁸ = 420×10⁻⁹ × frequency of light wave

Divide both sides by 420×10⁻⁹

Frequency of light wave = 3×10⁸ / 420×10⁻⁹

Frequency of light wave = 7.14×10¹⁴Hertz

Thus, from the calculation, it is evident that the frequency is 7.14×10¹⁴Hertz (2nd option)

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