what is the wavelength of an electromagnetic wave that has a frequency of 3 kilohertz? a. less than 1 km b. 1 km c. more than 1 km

Conversion of electromagnetic (EM) energy from the sun into other forms of energy occurs for the following options:

a. Biofuels

c. Solar thermal power

e. Wind power (EM to air movements)

A- Biofuels: During photosynthesis, plants capture electromagnetic energy from the sun and convert it into chemical energy, stored in the bonds of organic molecules, such as glucose. This process allows for the conversion of EM energy to chemical energy in the form of biofuels.

c. Solar thermal power: Solar thermal power plants use mirrors or lenses to concentrate sunlight, which is then converted into heat energy. This thermal energy can be used to generate steam, which drives a turbine and produces mechanical energy.

e. Wind power: Wind turbines harness the kinetic energy of moving air, which is ultimately driven by the sun's uneven heating of the Earth's surface. The sun's energy heats the atmosphere, creating temperature and pressure gradients that result in wind currents.

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Rainbow is a natural phenomenon showing dispersion. Splitting light is known as dispersion of light. The reason is correct for the given assertion.

Dispersion is the phenomenon in which the phase velocity of a light wave depends on its frequency. It is sometimes also termed as chromatic dispersion, which is used for the specificity to optics in particular. A medium having this common property may be termed as a dispersive medium.

A rainbow is a meteorological phenomenon which is caused by the reflection, refraction and dispersion of light in the water droplets resulting in a spectrum of light appearing in the sky. This takes the form of a multicolored circular arc. Rainbows are caused by the sunlight which always appear in the section of sky directly opposite the Sun.

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Your question is incomplete, most probably the complete question is:

Assertion - Rainbow is a natural phenomenon showing dispersion.

Reason - Splitting light is known as dispersion of light

What is right answer?

Answer:

well no, but yes

Explanation:

depends on your religion tbh

Answer:

There is a 50-50 chance that we do live in a simulation.

Explanation:

The vertical component of velocity shortly before the stone reaches the ground equals the original vertical velocity ie, v m/s

The vertical component of an object's velocity right before impact can be computed using equations of motion. If we examine a gravity-affected item with a beginning velocity (v0) and no air resistance, its vertical velocity (v) may be given by the equation:

v = v0 - gt

where g is the gravitational acceleration (9.8 m/s2) and t is the time since the item was launched.

To calculate the vertical component of velocity immediately before the stone reaches the ground, we must first compute the time t required for the stone to reach the ground. The following equation may be used to compute this:

t = (v0 - v) / g

By reintroducing the value of t into the first equation, we obtain:

v = v0 - gt = v0 - g((v0 - v) / g) = v0 - (v0 - v) = v

It is crucial to note that this estimate assumes no air resistance and that the object is dropped from a height far lower than the radius of the Earth, allowing the curvature of the Earth to be ignored. In fact, air resistance may have a major impact on an object's velocity, particularly as it approaches the earth.

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The force responsible for the acceleration of the crate is the frictional force between the crate and the bed of the truck.

When the truck accelerates, the crate tends to remain at rest due to inertia. However, the frictional force between the crate and the bed of the truck acts in the forward direction, allowing the crate to accelerate along with the truck.

This frictional force is a result of the interaction between the surfaces of the crate and the truck bed. Without this frictional force, the crate would slide or move independently from the truck's acceleration.

The frictional force arises due to the microscopically rough surfaces of the crate and the truck bed. As the two surfaces are pressed against each other, intermolecular forces come into play, resulting in the generation of the frictional force

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Given, Speed of the sound, v=675 m/s

The wavelength of the wave, λ=15 m

Relation between speed, wavelength, and frequency of a wave is given by

Where f is the frequency of the sound.

On substituting the known values,

Which gives us,

Therefore the frequency of the sound in the given medium is 45 Hz.

Answer:

check the attachments for the solution

Answer:

Mars is an opportunity for humans to carry forward the light of consciousness, plus it is the closest planet like earth, it has land humans can land on and although its small, theres still water

Answer:

2.5 Hz

Explanation:

3.0m/s / 1.2 m=2.5 1/s=2/5 Hz

The frequency of a wave with speed of 3.0 m/s and has a wavelength of 1.2m is 2.5 Hz.

The frequency of a wave is the number of cycles per second.

Given the wavelength is 1.2 m and speed v =3.0m/s, then the frequency of the wave is

v =fλ

f = 3 / 1.2

f = 2.5 Hz

Thus, the frequency of the wave is 2.5 Hz.

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Based on the rays drawn above, the mirror forms the image at a distance at about 13 cm.

This can be determined through the use of the ray diagrams and the laws of reflection. When rays of light reflect off a concave mirror, they converge at a point called the focal point. The distance from the mirror to the focal point is called the focal length, which for this particular mirror is 6.5 cm. By drawing the incident ray from the top of the object parallel to the principal axis, and then drawing the reflected ray through the focal point, the point where they intersect is where the image forms. This distance, s', is approximately 13 cm.

In summary, the image forms at a distance of about 13 cm from the mirror.

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Answer:  45 kmph, AAAAAAAAAAAAAAAAAAAAAAA

The speed of the projectile just before it hits the ground is 63.29 m/s. The horizontal velocity of the projectile will remain constant throughout its flight. The vertical velocity of the projectile will increase due to the acceleration due to gravity.

Time taken to hit the ground = t

In the horizontal direction, there is no acceleration

so,

200 = 40t + 0

t = 5 seconds

initial vertical velocity = 0

final velocity v = 0+ 9.81×5

= 49.05 m/s

speed of the projectile just before it hits the ground

= sqrt(40² + 49.05²)

= 63.29 m/s

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Answer:

d

Explanation:

because ik igvddhh56yfdsaw66 u77rfgtd gyy f music nutren

The total number of \(Al^{+3}\) ions (aluminum cations) needed to b transferred in the current is 72917 using principles of electrochemistry.

Total charge transferred is given to be \(0.035\\\) \(pC\).

Since, \(1 p C = 1\) × \(10^{-12}\) \(C\\\)

Total Charge (\(Q\)) = \(0.035\) × \(10^{-12}\)  \(C\)

Charge on each aluminum cation \(Al^{+3}\)  = Total charge of extra protons contained in each aluminum cation.

Charge on a single proton = \(1.6\) × \(10^{-19}\) \(C\)

Extra protons on each aluminum cation (\(Al^{+3}\)) = \(3\)

Thus charge on each aluminum cation (\(Al^{+3}\)) = \(3\) × \(1.6\) × \(10^{-19}\)

Now let the total number of aluminum cations (\(Al^{+3}\)) be \(n\).

Thus according to principles of electrochemistry:

\(n\) × \(3\) × \(1.6\) × \(10^{-19}\) = \(0.035\) × \(10^{-12}\)

Solving the equation for \(n\), we get \(n\) = \(72917\)

Thus, in total 72917 ions of \(Al^{+3}\) are needed to be transferred in the current.

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The correct question should be:

If 0.035pC of charge is transferred via the movement of Al3+ ions, how's many of these must be transferred in total?

Answer:

the first statement...

Answer:

The first answer is correct.

Plz mark brainliest.

Hope I helped.

Explanation:

Answer: 225N to the right

Explanation:

The pedaling force is to the right and of 325N.

The air resistance is to the opposite side (in this case to the left) of 100N.

To find Net force of an object with two opposite forces acting on them then we have to subtract the smaller force from the bigger force and but the direction of the bigger force, so

325N-100N=225N

The greater force is towards the right proving the direction of the Net force is to the right.

Therefore the Net force is 225N to the right.

Please mark me brainliest.

\(\pink\hookrightarrow\) Family health is a state in which the family is a resource for the day-to-day living and health of its members.

If F = 37 N, the static frictional force between the block and the table and the minimum force required to move it must be equal.

It is the force that regulates itself. The value of static friction varies from zero to the smallest force required to initiate motion. The formula for determining static friction is as follows: Normal Force divided by the static friction coefficient is static friction.

Although the maximum static friction will rise, the frictional force will always be the same as the weight in mg because friction cannot accelerate an object. Because FrN can take any value less than N to balance the weight, this is the case.

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Answer:

50 or 1.3333

Explanation: Explanation you cancel out the mass and the force to see what your acceleration would be or you could divide F by M

Answer:

Explanation:

A simple pendulum consists of a mass (usually represented as a small object or bob) attached to a string or rod of negligible mass. The mass is free to swing back and forth under the influence of gravity.

In the figure, the point of suspension is denoted by "O," and the mass (bob) is represented by the small circle. The string or rod is represented by the vertical line connecting the point of suspension to the bob.

Amplitude:

The amplitude of a pendulum refers to the maximum displacement or swing of the bob from its equilibrium position. In the figure, the amplitude can be represented by the angle formed between the vertical position and the position of the bob when it swings to its maximum distance on one side. It is usually denoted by the symbol "A."

Effective Length:

The effective length of a pendulum refers to the distance from the point of suspension to the center of mass of the bob. It represents the distance over which the mass swings back and forth. In the figure, the effective length can be measured as the length of the string or rod from the point of suspension to the center of the bob. It is usually denoted by the symbol "L."

It is important to note that the amplitude and effective length of a simple pendulum affect its period of oscillation (the time taken for one complete swing). The relationship between these parameters and the period can be described by mathematical formulas.

Overall, the simple pendulum is a fundamental concept in physics and provides a simplified model for understanding oscillatory motion and the principles of periodic motion.

Answer:

apply to the breaks gently

Explanation:

a) The ratio of the electric charge on each conductor to the potential difference (i.e., voltage) between them is used to express capacitance.

b) The area of the plates, the spacing between them, and the type of insulating material or dielectric between them are the three variables that have an impact on a parallel-plate capacitor's capacitance.

c) The area of each plate, the dielectric material separating the plates, and the distance between the plates all affect the capacitance of a parallel plate capacitor.

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Answer:

The foil makes the microwave spark it can smoke up and catch fie.

Explanation:

-The aluminum foil's sharp edges are what causes the fire, smoke, and sarks.

- Hope This Helps!

-Justin:)

Answer:

itll spark and catch fire

Explanation:

Answer:

259200

Explanation:

use the formula distance= speed x time

change the 2 hours to seconds (7200) and multiply that number by 36 and it'll give you 259200

Answer:

12 kilometers and hour

Explanation:

Answer:

i think its 4 or 35

Explanation:

its in the middle of 40 and 30

Because they last for a very long time, they become unstable and then either slip back into to the sun and erupt into space.

Solar flares are abrupt outbursts that are among the most violent phenomena to occur on the Sun's surface.Flares can unleash energies equal than millions of thermonuclear weapons and normally endure for a few minutes.

The moment the filament size starts to diminish as seen in H pictures is when we designate the filaments eruption start time.This study reports 33 eruptive filament episodes, of which 73% are connected with CMEs and 76% with solar flares.

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The color ray that is bent the most is blue. This is because blue light has a shorter wavelength than red, green, and yellow light, which causes it to bend more when passing through a prism.

The amount of bending of light by a prism depends on the refractive index of the material of the prism and the wavelength of the light. The refractive index of the material is higher for shorter wavelength light, which causes shorter wavelength light to bend more than longer wavelength light. Therefore, the color of light that is bent the most by a prism is the color with the shortest wavelength.

Of the colors listed, blue light has the shortest wavelength and therefore is bent the most by a prism. Red light has the longest wavelength and is bent the least by a prism. Green and yellow light have intermediate wavelengths and are bent to intermediate degrees.

So, the answer is blue.

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Answer: Kinetic energy is the energy that an object possesses due to its motion and potential energy is the energy that an object possesses due to its position

Explanation:

Kinetic energy is the energy that a body or item has as a result of its motion.

Example: A ball that starts rolling down a hill has kinetic energy because of its motion.

Potential energy is known as the energy that an object has as a result of its position.

Example: A drawn bow can store energy because of its position.