Question 3 of 5
An atom's nucleus contains three protons and three neutrons. What is the
overall charge of the nucleus?
A. -3
B. +3
C. 0
D. +6

The three wavelengths that will produce standing waves on this string are 4 m, 2 m, and 1.33 m.

To find the wavelengths that will produce standing waves on a stretched string fixed at both ends, we can use the formula:

λn = 2L/n

where λn is the wavelength of the nth harmonic, L is the length of the string, and n is the harmonic number.

For the fundamental frequency (n = 1), the wavelength would be:

λ1 = 2L/1 = 4 m

For the second harmonic (n = 2), the wavelength would be:

λ2 = 2L/2 = L = 2 m

For the third harmonic (n = 3), the wavelength would be:

λ3 = 2L/3 ≈ 1.33 m

So, the three wavelengths that will produce standing waves on this string are 4 m, 2 m, and 1.33 m.

Now, for a wavelength that would not produce a standing wave pattern, we can consider the case where the wavelength is equal to the length of the string, i.e., λ = L. In this case, the wave will not produce a standing wave pattern because the ends of the string are fixed nodes, and the only possible standing wave pattern is one that has a node at each end. If the wavelength is equal to the length of the string, the only possible pattern would be a single wave with an antinode at the center, which is not a standing wave.

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A graph with vertical axis K E and horizontal axis Speed with a straight line sloping sharply upward.

The kinetic energy of an object is directly proportional to the square of its speed which means that if kinetic energy of an object increases the speed of that object is also increases and vice versa so we can conclude that graph with vertical axis K E and horizontal axis Speed with a straight line sloping sharply upward is the right answer.

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Answer:

The correct answer is:

B.)

Explanation:

I did the assignment on Edge, 2022.

(See the attachment below.)

Hope this helped, good luck on the quiz! :D

The y-component of the vector is 4.97 m.

A vector is a quantity that has both magnitude and direction.

To calculate the y-component of the vector in the diagram above, we use the formula below.

Formula:

From the question,

Given:

Substitute these values into equation 1

Hence, the y-component of the vector is 4.97 m.

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Given :

Answer:

For calculating Upthrust on block we will have to first find out Volume of block :

↪Volume of block = Volume of water displaced

↪ Volume of block = 1000 cm³ = 0.001 m³

Now, we will calculate the Upthrust on block:

↪ Upthrust on block = Volume of block * Density of water * g

↪ Upthrust on block = 0.001 * 1000 * g

↪ Upthrust on block = 1 kgf

ANSWER

EXPLANATION

We want to find the angle of reflection of the ray of light.

According to the law of reflection, the angle of reflection must be equal to the angle of incidence of a ray of light:

Therefore, the angle of reflection of the ray of light is:

That is the answer.

The temperature rises of in the block if the current flows for 10 minutes is, 34.78K.

To find the answer, we need to know about the power of the electric heater.

                           \(P=40 W\\m=1.5kg\\S=460\\t=10minutes=10*60s=600s\)

                             \(P*t= mS\)ΔT

                           ΔT \(=\frac{P*t}{mS} =\frac{40*600}{1.5*460} =34.78K\)

Thus, we can conclude that, the temperature rises in the block if the current flows for 10 minute is 34.78K.

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If the current flows for 10 minutes, the temperature in the block rises by 34.78 K.

We must understand the electric heater's power in order to determine the solution.

              \(P=40Watts\\m=1.5kg\\s=460\\t=10 min=600s\)

                    \(Pt=ms\)ΔT

We must determine the increase in temperature, T.

             ΔT\(=\frac{Pt}{ms} =34.78 K\)

Thus, we can infer that if the current flows for 10 minutes at 34.78K, the temperature in the block will increase.

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Compared to when the cosmic microwave background (CMB) was first released, the radiation of the CMB today is more redshifted and has most of its photons at longer wavelengths.

The cosmic microwave background radiation is residual radiation from the early universe, specifically from the time when the universe became transparent to light. At that time, known as recombination, photons were able to travel freely through space, and the CMB was released.

Since the time of recombination, the universe has been expanding, causing the wavelengths of the CMB photons to stretch or redshift. This redshift has shifted the radiation from its initial high-energy, short-wavelength state to a lower-energy, longer-wavelength state.

Today, the CMB is observed as microwave radiation, which has longer wavelengths compared to the original release. The majority of the photons in the CMB are now found in the microwave part of the electromagnetic spectrum, with peak wavelengths around 1 mm.

In summary, the radiation of the cosmic microwave background today is more redshifted, with most of its photons at longer wavelengths, specifically in the microwave region of the electromagnetic spectrum.

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Atoms held together through shared electrons.

A molecule is composed of atoms. Atoms are the smallest particles of a substance which can take part in a chemical reaction. Atoms are composed of electrons and the electrons in the outermost shell of atoms help bond atoms together in a molecule.

Hence, atoms are held together in molecules by electrons so they are held together through shared electrons.

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His final velocity at the end of the 2.6 seconds will be  25.48 m/s

given

time = 2.6 seconds

initial velocity = u = 0

acceleration = acceleration due to gravity = 9.8 \(m/s^{2}\)  (since , it is a free fall )

final velocity = ?

using kinematics equation

v = u + at

v = u - g*t

v = - 9.8 * 2.6 = - 25.48 m/s

His final velocity at the end of the 2.6 seconds will be  25.48 m/s in downward direction

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Answer: Yes the objects would be balanced.

Explanation:

If there is no net force then the object will not move in any direction, meaning that the object is balanced.

Because of the cosmological principle, we can predict gravity works similarly on Earth as on Mars.

The cosmological principle says that an observer's view of the universe is independent of both the direction he looks and his location. This principle only applies to the universe's large-scale properties, but it does suggest that the world has no edge, implying that the big-bang origin took place not at a specific point in space, but instead throughout space at the exact time.

These two assumptions allow us to determine the history of the universe after a specific epoch known as the Planck time. Scientists are yet to discover what existed prior to Planck time.

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The 6cm far away could another bumblebee detect its presence. An electric field of 60 n/c.

The positive charge at the dot produces an electric field that is directed away from the positive charge. The negative charge at the dot is the target of the electric field that it produces.

The field strength in physics refers to the size of a vector-valued field, such as the electric field E's magnitude expressed in volts per meter, or V/m. For instance, an electromagnetic field produces both a strong electric field and a strong magnetic field.

Given:

Electric field E = 60 N/C

Charge q = 24 pC

Electric field \(E=K\frac{q}{r^2}\)

\(r=\sqrt{K\frac{q}{E} }\)

\(K=8.99*10^9\frac{Nm^2}{C^2}\)

\(r=\sqrt{(8.99*10^9)\frac{24*10^-12}{60} }\)

\(r=6cm\)

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Correlation is a unit less measure and it used often in statistics. It indicates both the intensity of the connection and its (direct or inverse) direction.

Correlation is a measure of association that tests whether a relationship exists between two variables. It indicates both the strength of the association and its direction (direct or inverse). The Pearson product-moment correlation coefficient, written as r, can describe a linear relationship between two variables.

Correlation is used to measure the linear relationship between two variables in statistics.

Correlation is one of the measures of association, which measures whether there is a relationship between two variables. A linear relationship between two variables can be represented by the Pearson correlation coefficient, written as r.

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Answer:

c) The balls have the same velocity after the collision

Explanation:

In a perfectly inelastic collision between two balls, there is a loss in the maximum kinetic energy of the system and the two ball stick together, and thereby have the same velocity after the collision and also the coefficient of restitution of the two balls is also zero accompanied by a loss in the kinetic energy of the system

Therefore, the correct option is that both balls will have the same (equal) velocity after the collision.

The rounded mature wind waves of one wavelength that form orderly undulations of the ocean surface as the mature wind waves of one wavelength that form orderly undulations of the ocean surface and often precede a major storm system is known as swells.

The waves has been considered as fully developed or mature sea outrun the storm that creates them, lengthening as well as reducing in the height in the process. Mature wind waves has been known as swell, when they has been left the formation of the particular region.

They has been traveled away from where they were raised by the wind, and have to the greater or lesser extent dispersed. Mature wind waves of one wavelength is known as swell.  

Therefore, The rounded mature wind waves of one wavelength that form orderly undulations of the ocean surface as the mature wind waves of one wavelength that form orderly undulations of the ocean surface and often precede a major storm system is known as swells.

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The acceleration of the disk after 10 seconds is 2.5 m/s^2, a disk starts rotating from rest and accelerated uniformly to a velocity of 25 m/s in 10 seconds.

We can use the formula for uniform acceleration to solve this problem:

v = u + at

where:

v = final velocity = 25 m/s

u = initial velocity = 0 m/s (the disk starts from rest) t = time taken = 10 seconds

a = acceleration (unknown)

Rearranging the formula, we get:

a = (v - u) / t

Substituting the given values, we get:

a = (25 m/s - 0 m/s) / 10 s

Simplifying the expression:

a = 2.5 m/s^2

Therefore, the acceleration of the disk after 10 seconds is 2.5 m/s^2.

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Total Cost is =  $107,380 if The farm is 340 acres and had corn planted  add fertilizer to the soil before you plant this years' crop.

A fertiliser is a natural or artificial substance containing chemical elements (such as Nitrogen (N), Phosphorus (P) and Potassium (K)) that improve growth and productiveness of plants. Some synonyms include the terms "enrichment" or "plant nutrient".

Without fertilizers, nature struggles to replenish the nutrients in the soil. When crops are harvested, important nutrients are removed from the soil, because they follow the crop and end up at the dinner table. If the soil is not replenished with nutrients through fertilizing, crop yields will deteriorate over time.

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It takes approximately 4.59 seconds for the car to come to a stop. the car's initial speed was approximately 110.2 ft/s,

To determine the time it takes for the car to stop and the car's initial speed, we can use the kinematic equation:

v² = u² + 2as

where:

v is the final velocity (0 ft/s, since the car comes to a stop),

u is the initial velocity (unknown),

a is the acceleration (-24.0 ft/s², as the car slows down),

and s is the distance traveled (253 ft).

Plugging in the known values into the equation, we can solve for u:

0² = u² + 2(-24.0 ft/s²)(253 ft)

0 = u² - 48.0 ft/s² * 253 ft

48.0 ft/s² * 253 ft = u²

u² = 12144 ft²/s²

Taking the square root of both sides:

u = √12144 ft/s

u ≈ 110.2 ft/s

So, the car's initial speed was approximately 110.2 ft/s.

Now, to find the time it takes for the car to stop, we can use the equation:

v = u + at

0 = 110.2 ft/s + (-24.0 ft/s²) * t

24.0 ft/s² * t = 110.2 ft/s

t = 110.2 ft/s / 24.0 ft/s²

t ≈ 4.59 s

Therefore, it takes approximately 4.59 seconds for the car to come to a stop.

In summary, the car's initial speed was approximately 110.2 ft/s, and it took approximately 4.59 seconds for the car to come to a stop while skidding a distance of 253 ft.

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The correct answer is option B,

Delta rays would have the same wavelength as most gamma rays.

The term "delta ray" is commonly used to refer to any rebound particle produced by secondary ionization.

A delta ray is a secondary electron with sufficient energy to escape from the initial radiation beam and trigger more ionization.

J. J. Thomson was the author of the phrase.

Gamma radiation, commonly referred to as gamma rays, are piercing electromagnetic radiation waves that result from the radioactive disintegration of atomic nuclei.

It comprises of electromagnetic waves with the shortest wavelengths, often shorter than X-rays.

Delta rays are by-products of the secondary ionization of molecules.

They are composed of sluggish electrons and other ionizing radiation-produced particles and have extremely little penetration strength.

Ionizing radiation causes particles to discharge their atoms, creating delta rays as a result.

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The complete question may be like this:

Imagine a scientist detects an electromagnetic wave with a higher frequency than that of most gamma-ray waves. Scientist calls these waves delta rays. Which of these statements would be true of delta rays?

A.) Delta rays would have more energy than most gamma rays do.

B.) Delta rays would have the same wavelength as most gamma rays.

C.) Delta rays would have a longer wavelength than most gamma rays have.

D.) Delta rays would travel faster than most gamma rays.

Answer:

To find the volume of a rectangular object, measure the length, width and height. Multiply the length times the width and multiply the result by the height. The result is the volume. Give the result in cubic units, such as cubic centimeters.

Explanation:

Answer:

Kinetic energy is the energy possessed by an object due to its motion. If an object is moving, then it has kinetic energy. The amount of kinetic energy depends on mass and speed.

Explanation:

Answer:

The shadow would be on your left side.

Explanation:Give brainliest if this helped :)

Answer:

I don't know

Explanation:

.....

(fish are able to breath and drink water since the power of 3 divided by how many fish in the ocean is 2 apples) and that equals to (A bad joke)

Answer:

\(0.361\ \text{m}\)

Explanation:

\(f_s\) = Frequency of source = 375 Hz

\(\Delta f\) = Difference between the maximum and minimum sound frequencies = 2.75 Hz

v = Speed of sound in air = 343 m/s

T = Time period = 1.8 s

\(v_m\) = Maximum speed of the microphone

We have the relation

\(\Delta f=2f_s\dfrac{v_m}{v}\\\Rightarrow v_m=\dfrac{\Delta fv}{2f_s}\\\Rightarrow v_m=\dfrac{2.75\times 343}{2\times 375}\\\Rightarrow v_m=1.26\ \text{m/s}\)

Amplitude is given by

\(A=\dfrac{v_mT}{2\pi}\\\Rightarrow A=\dfrac{1.26\times 1.8}{2\pi}\\\Rightarrow A=0.361\ \text{m}\)

The amplitude of the simple harmonic motion is \(0.361\ \text{m}\).

From Newton's second law of motion, the acceleration of the crate is 0.84m/\(s^{2}\)

Given that a 25 kg crate is pushed horizontally with a force of 70N and the coefficient of friction is 0.20

To calculate the acceleration of the crate, We will consider the net force acting on the crate. The net force will be sum of the applied force F and the frictional force \(F_{r}\).

Let us first calculate the frictional force \(F_{r}\). That is,

\(F_{r}\) =- μN

\(F_{r}\) = μmg

\(F_{r}\) = 0.2 x 25 x 9.8

\(F_{r}\) = 49N

Using Newton's second law,

F = ma

F - \(F_{r}\) = ma

70 - 49 =  25 a

21 = 25a

a = 21 / 25

a = 0.84 m/\(s^{2}\)

Therefore, the acceleration of the crate is 0.84m/\(s^{2}\)

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Answer:

150J

Explanation:

yee thats it hope it helps

Photosynthesis makes use of the specific wavelengths of visible light in the electromagnetic spectrum. This includes light with wavelengths ranging from approximately 400 to 700 nanometers.

These wavelengths are the colors of the rainbow, including red, orange, yellow, green, blue, indigo, and violet. Chlorophyll pigments within plants absorb photons of light within this range and use the energy to convert carbon dioxide and water into glucose and oxygen, a process known as photosynthesis. The absorbed energy is then used to power the various metabolic processes of the plant.

The ability of plants to utilize specific wavelengths of light for photosynthesis has important applications in agriculture and horticulture. By providing plants with specific wavelengths of light, it is possible to optimize growth and increase yield. For example, red light is known to stimulate flowering and fruiting in some plant species, while blue light can promote vegetative growth and compact plant form.

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Hardness, color , and luster.

But since you can pick one, I would say hardness

Answer:

The right answer is "chemical" or "chemical store" or "chemical energy" or "chemical potential" or "chemical energy store" or "chemical potential energy store"

Explanation:

Batteries use chemical reactions to create electricity, so store energy in the chemical potential energy store.