a;most done i know im asking a lot of qeastions

If this wave has a frequency of 15 Hz then the wavelength of the wave would be  2 ×10⁷ m

It can be explained in terms of the separation between any two similar successive points on a wave, such as how the wavelength can be determined by calculating the separation between any two successive crests.

According to the following relation, the wavelength and wave frequency are inversely proportional.

C = νλ

Where c is the speed of light and v is the wave's frequency and λ

is the wave's wavelength.

As given in the problem If this wave has a frequency of 15 hz.

As we know C = νλ

by substituting the value of the frequency in the given formula

C = 3×10⁸ m/s

3×10⁸ = 15 ×λ

λ = 3×10⁸/ 15

  = 2 ×10⁷ m

Thus, If this wave has a frequency of 15 Hz then the wavelength of the wave would be 2 ×10⁷ m

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The net force is 0 because the friction force counteracts or counterbalances the force you apply, which is why the object does not move. Specifically the static friction is holding the object in place and keeping the object static.

Once you apply enough force and overcome that static friction, then the object will move and you'll be dealing with dynamic friction. Dynamic friction is what still holds the object back somewhat and allows the object to slow down and eventually stop (when the force you apply isn't enough anymore).

Without dynamic friction, the object would slide forever until it hit the wall. With something like slippery ice, there is dynamic friction but it's not as large compared to other surfaces.

Answer:

48 m/s

Explanation:

The time is 10 seconds

The speed of the car after 10 seconds when the relationship is 4.8 m/s^2 × time can be calculated as follows

= 4.8 × 10

= 48

Hence the speed is 48 m/s

Answer:

T = 2.4 + 2.4 = 4.8 [s]

Explanation:

In order to solve this problem, we must use the following kinematics equation and calculate the acceleration value.

[tex]x=x_{o} +v_{o}*t+(\frac{1}{2})*a*t^{2}[/tex]

Vo = inital velocity = 0

x - xo = 15 [m]

t = time = 2.4 [s]

15 = 0.5*a*(2.4)^2

a = 5.208 [m/s^2]

We can use the same equation to find the time.

30 = 15 + 0.5*(5.208)*t^2

t = 2.4 [s]

T = 2.4 + 2.4 = 4.8 [s]

Answer:

Attraction property of magnets!

Explanation:

Good luck on your test or question :)

Answer:

Musical instruments are grouped by how they produce the pitch.

Pitch is the highness or lowness of a tone.

Explanation:

:)

Answer:

Renewable sources are better because they don't damage the environment. As of now, there is a r=lot of damage already done to the environment thanks to non-renewable resources, and soon a lot of this damage will be irreversible. Another good thing about renewable resources is that that it is unlimited, this means that it is a steady source of energy and items.

Non renewable resources are good for the economy. People are so used to using non renewable resources that they might not want to switch over to renewable resources. People will keep buying these product so it is a steady item to invest in and profit off of. Non renewable resources also have a lot  more research on them and people have found multiple different ways to utilize it so people might like it more.

Answer:

it means the velocity is changing.

the rate of change of velocity is acceleration

so it means the body is accelerated at 2m/s^2

It means that the body is moving, and getting faster and faster. At any time, it's moving 2 m/s faster than it was moving 1 second earlier.

Answer:

hope it helps you:)

Explanation:

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Answer:ME= 1\2mv^2 + mgh

Explanation: I hope this helped.

The correctly represents the gravitational potential energy of a system is = - ΣGM₁M₂/R. Negative sign appears as gravitational force is attractive force.

Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is compressed or stretched, its potential energy increases.

If a steel ball is raised above the ground as opposed to falling to the ground, it has more potential energy. It is capable of performing more work when raised.

Potential energy is a characteristic of systems rather than of particular bodies or particles; for instance, the system made up of Earth and the elevated ball has more potential energy as they become further apart.

Potential energy of a system of particles can be represented as summation of individual's  potential energy. Hence, the correctly represents the gravitational potential energy of a system is = - ΣGM₁M₂/R.

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Hi there!

We can use the power equation:
[tex]P = \frac{V^2}{R}[/tex]

P = Power (W)
V = Potential Difference (V)
R = Resistance (Ω)

Rearrange to solve for Resistance:
[tex]R = \frac{V^2}{P} = \frac{220^2}{1477} = \boxed{32.769 \Omega}[/tex]

Answer:

[tex]a=0.125\ m/s^2[/tex]

Explanation:

Given that,

Mass, m = 40 kg

The net force with which Joyce pushes Efua is 5 N.

We need to find Efua’s resulting acceleration. Let it is equal to a. Net force is given by :

F = ma

[tex]a=\dfrac{F}{m}\\\\a=\dfrac{5\ N}{40\ kg}\\\\a=0.125\ m/s^2[/tex]

So, the acceleration is [tex]0.125\ m/s^2[/tex].

The resulting acceleration of Efua is  [tex]0.125 \;\rm m/s^{2}[/tex].

Given data:

The mass of Efua is, m = 40.0 kg.

The magnitude of applied force by Joyce is, F = 5.00 N.

The given problem is based on the Newton's Second law of motion. As per the Newton's second law, the applied force is equal to the product of mass and the acceleration of object. Therefore,

F = ma

a = F/m

Solving as,

a = 5.00 / 40

[tex]a = 0.125 \;\rm m/s^{2}[/tex]

Thus, we can conclude that the resulting acceleration of Efua is  [tex]0.125 \;\rm m/s^{2}[/tex].

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Answer:

Becky gave her friend 42 Oreos

Explanation:

55-13=42

Answer:

42

Explanation: 55-13 = 42

the initial kinetic energy is equal to the final kinetic energy

Answer:   Electromagnetism and sound

Lemonade is best described as __________.

D. a mixture

Answer:

11.04m

Explanation:

Convert kilometers to meters: 53km/h x 1000 = 53,000m/h

Convert hours to seconds: 53m/h / 3600 =14.72m/s

14.72 (.75) = 11.04

Answer:

x² - 4 ( 7 + 82 ) = 34

x² - 28 - 328 = 34

x² = 34 + 28 + 328

x² =  390

x = √390

Explanation:

Answer:

A

Explanation:

The motion of the wheelbarrow is going straight, so the wheelbarrow accelerates faster. Since it doesn't say about moving the motion onto its side, it's A.

Answer:

False

Explanation:

they just what they spent money on and thats not all of it

Answer:

atom with a neutral charge is one where the number of electrons is equal to the atomic number. Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge. When you have an extra electron or two, you have a negative charge.

Explanation:

When the amount of electrons in an atom is the same as the atomic number, the atom has a neutral charge. Particles with extra protons or missing electrons are known as ions.

Electrons are present outside the electron shell, in contrast to nucleons, which are contained inside the core at its center. Neg electrons are drawn to a positive nucleus so because excitons of opposite polarity attract one another. The total energy of an electron is inversely proportional to the intensity at which the electrons wave equation vibrates. Elevated atomic states have faster-vibrating electrons. An electron should always be oscillating at some speed because it is a subatomic object with wave-like characteristics.

Electrons are fundamental to many physical processes, including gravity, magnetic interactions, weak interrelations, electricity, magnetism, chemistry, and thermal conductivity. Ions and electrons are drawn into positive charges atoms by their nucleus's attraction pull. Unless an electrons received sufficient power to overcome this pressure by ascending, it was impossible for an electrons to escape from in an atom in mathematical mechanics.

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Quantum theory is the theoretical basis of modern physics that explains the nature and behavior of matter and energy on the atomic and subatomic level. The nature and behavior of matter and energy at that level is sometimes referred to as quantum physics and quantum mechanics.

I LOVE THE Quantum Theory

Hope this helps!

Answer:

4kg=4000,8m=60 times 8 =480

4000 times 480 over 100 =19200

Answer: b

Explanation:

Answer:

C.

The More Kinetic Energy being used, the Faster, the Roller Coaster will go.

Explanation:

Hope i helped you :)

Answer:

the observer's latitude

Explanation:

the observer's latitude

The number of protons in an atom is known as the atomic number

Answer:

Number of protons

Explanation:

It is denoted by the letter Z