Draw oxygen, carbon and Neon with atomic and mass number as they appear on the periodic table natural science

Answer: 350 N

Explanation:

Given

Mass of ball is \(0.5\ kg\)

Speed of ball after rebound is \(v=2\ m/s\)

Time period for impulse \(t=0.01\ s\)

Impulse imparted in equal to the change in the momentum of object

\(\Rightarrow J=m(v-u)\quad [\text{u=speed of ball before collision}]\\\Rightarrow J=0.5\times \left(2-(-5)\right)\\\Rightarrow J=0.5\times 7\\\Rightarrow J=3.5\ N.s\)

Impulse is the product of average force and duration of application

\(\Rightarrow J=F_{avg}\cdot \Delta t\\\Rightarrow 3.5=F_{avg}\times 0.01\\\\\Rightarrow F_{avg}=350\ N\)

Under these circumstances, a gas molecule moves at an average speed of v, or 2 v.

By applying pressure to a piece of fruit with a knife, one can observe a straightforward illustration of pressure. The surface will not be cut if you press the flat section of the knife against the apple. The force is widely dispersed (low pressure).

A physical force applied to an item is referred to as pressure. The force applied is perpendicular to the surface of the objects per unit area. The fundamental formula for pressure is F/A. (Force per unit area). Pascals are the unit of pressure (Pa). Absolute pressures are one type of pressure.

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Explanation:

How do you demagnetize a nail?

To unscrew the magnetized nail or to demagnetize a nail magnetized by prolonged contact or rub, banging the nail on a hard surface or dropping it to the ground shaking up the aligned atoms with a sharp effect. For the electric magnet, simply separating one end of the copper wire from the terminal kills the magnetic field

Hope this can help you. Good Luck!

Answer:

150000000

Explanation:

There you go :)

Answer:

150,000,000

Explanation:

150+6zeros=15000000

Answer:

Explanation:

The reason it is called the special theory of relativity is because it's a special case of the general theory of relativity. SR deals with uniform motion, where there is no acceleration. Spacetime in special relativity is flat, with no gravity or curvature. It is a spacetime with no gravity. On the other hand, GR deals with accelerating reference frames and curved spacetime.

Answer:1 }The state of stress of the earth's crust

2}Existing faults

Explanation:

I would be happy to help you with whatever question or concern you may have. However, I'm not sure what you mean by "13". If you could please provide more context or clarify your question, I will do my best to assist you.

In the meantime, I would like to offer some general advice that may be helpful. If you are struggling with something, whether it be a problem, a task, or an emotional issue, it's important to remember that asking for help is a sign of strength, not weakness. No one has all the answers, and seeking assistance from others can often provide new perspectives and solutions that you may not have considered on your own.

Additionally, it's important to be patient with yourself and to not give up too easily. Many challenges require time, effort, and persistence to overcome. Don't be discouraged if progress seems slow or if setbacks occur along the way. Keep focused on your goal and take things one step at a time.

Finally, don't be afraid to take breaks and practice self-care. Sometimes stepping away from a problem for a little while can provide much-needed perspective and rejuvenation. Whether it's taking a walk, practicing mindfulness, or engaging in a hobby, make sure to prioritize your mental and physical health.

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Answer:

A.The rabbits in the new habitat will have lower genetic variation than the rabbits in the original habitat.

Explanation:

If two animals of opposite sex are isolated from a larger group of animal, and made to reproduce. They will produce offspring with similar genetic makeup. If this offspring still remain isolated, and continue to interbreed within themselves for a number of consecutive generations, their offspring will all be very closely related genetically. Situations like this just as with the two rabbits in the question leads to a lower genetic variation within the offspring of the two animals.

Animals need to reproduce within a larger group in order to increase genetic variation. Increasing genetic variation reduces the risk of been sucked into a gene pool. A lower genetic variation reduces the fitness of the animals involved. It is only an advantage in cases in which the the original pair are resistant to a deadly disease. In this case all the offspring also develop this immunity. Mostly the effects of a lower genetic variation leaves negative impacts, and animals try to avoid this by preferring to interbreed with unrelated partner

Answer:

I got this and got the answer correct.

Explanation:

Hope it helps :)

The average power developed by the boy during the climb is approximately 29.4 W.

In physics, the amount of energy transferred or converted per unit time is called power.

total height = number of steps x height of each step

total height = 30 x 0.15 m = 4.5 m

Given, time = 60 s

As power = work done / time

work done = force x distance

force = mass x gravity

mass is boy's mass (40 kg) and gravity is acceleration due to gravity (9.81 m/s²).

force = 40 kg x 9.81 m/s² = 392.4 N

The distance that the boy moves is equal to the total height that he has climbed: distance = total height = 4.5 m

work done = force x distance

work done = 392.4 N x 4.5 m = 1765.8 J

power = work done / time

power = 1765.8 J / 60 s

power ≈ 29.4 W

Therefore, the average power developed by the boy during the climb is approximately 29.4 W.

As for the anomalous behavior of water, water has a higher boiling point and melting point as compared to other substances with similar molecular weight. This is due to the strong hydrogen bonding between water molecules, which requires more energy to break the bonds and change the state of water from solid to liquid to gas.

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Answer:

deuteron

Explanation:

Answer:

C. The Third Picture

Explanation:

EDGE 2021

Answer:

When sunlight strikes a solar panel what form of energy is transformed to?

Solar radiation may be converted directly into electricity by solar cells (photovoltaic cells). In such cells, a small electric voltage is generated when light strikes the junction between a metal and a semiconductor (such as silicon) or the junction between two different semiconductors.

Explanation:

The two pieces of paper land on the moon's surface at the same time because they are both subject to the same gravitational force.

The force of gravity is determined by the mass of the object and the distance between it and the center of the celestial body. On the moon, the force of gravity is weaker than it is on Earth, but it is still strong enough to cause objects to fall toward the surface.

The shape of the paper, whether crumpled or folded into an airplane, has no effect on the force of gravity acting on it. In the absence of air resistance, all objects, regardless of their mass, shape, or size, will fall at the same rate in a vacuum.

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Answer:

negative charge

Explanation:

In that amount of time, the ball will travel 250 meters.

We refer to uniform acceleration as the process through which an object's speed (velocity) increases at a constant pace. The acceleration rate is constant. A car's acceleration is not consistent if it accelerates quickly before slowing down.

The three main categories of accelerated motions are uniform, non-uniform, and average acceleration. When an item moves in a straight path with an increase in speed occurring at regular intervals of time, this motion is referred to as having uniform acceleration.

According to the question -

u = 10 m/s

t = 25 s

Therefore -

Distance = u x t = 10 x 25 = 250 meters.

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Answer:

Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.

Explanation:

hope this helps a little bit sorry if i got it wrong

We can solve this problem using the kinematic equations of motion for a projectile under constant acceleration due to gravity. In particular,

we can use the equation:

h = y + viy×t - (1/2)gt²

where h is the maximum height attained by the projectile,

y is the initial height of the projectile (in this case, 50 feet), viy is the initial vertical velocity of the projectile (in this case, 128 feet per second),

t is the time it takes for the projectile to reach its maximum height,

and g is the acceleration due to gravity (which we take to be 32.2 feet per second squared).

To find the time it takes for the projectile to reach its maximum height, we can use the fact that the projectile will reach its maximum height when its vertical velocity becomes zero.

At this point, the projectile will have traveled halfway through its trajectory, so the time it takes to reach the maximum height is given by:

tmax = viy/g

Plugging in the given values, we get:

tmax = 128/32.2 seconds

tmax ≈ 3.98 seconds

Now, we can use the equation for the maximum height:

h = y + viy×t - (1/2)gt²

Plugging in the values we have calculated, we get:

h = 50 + 128×3.98 - (1/2)32.2(3.98)²

h ≈ 403.2 feet

Therefore, the maximum height attained by the projectile is approximately 403.2 feet.

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If you raise a 2 kg book 0.8m over your head, the amount of work that you have done is 15.68 J

F = m g

F = Force

m = Mass

g = Acceleration due to gravity

m = 2 kg

g = 9.8 m / s²

F = 2 * 9.8

F = 19.6 N

W = F d cos θ

W = Work done

d = Distance

θ = Angle between force and displacement vector

d = 0.8 m

θ = 0

W = 19.6 * 0.8

W = 15.68 J

Therefore, the amount of work that you have done is 15.68 J

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Answer:

Explanation:

Initial velocity (u) of the Bullet = 400 m/sec

Final velocity (v) of the Bullet = 100 m/sec

Bullet passed through the block in (t) = 0.0004 sec  

Using 1st Equation of motion :

400 m/s = 100 m/s - a (0.0004)

Deceleration of Bullet = 750,000 m/sec^2

(a) F (force exerted by the wooden block on the bullet) = F (force exerted by the bullet on the wooden block)

F = m * a = 0.008 * 750,000 = 6000 N

(b) Using 3rd Equation of motion :

\(v^{2} = u^{2} - 2aS\)

10000 = 160000 - 2 * 750,000 * S

Thickness of wood (S) = 0.1 m

Answer:

A.

Explanation:

Because your throwing something or adding force to it to make it go somewhere.

The given statement "electric field lines near negative point charges circle clockwise." is False. Because electric field lines near negative point charges do not circle clockwise.

They actually radiate outward from the negative charge in all directions. The direction of the electric field lines is determined by the direction in which a positive test charge would move if placed in the field. Since like charges repel each other, a positive test charge would move away from the negative charge, resulting in electric field lines that extend outward from the negative charge. The field lines do not form closed loops or circles around the negative charge. Instead, they spread out radially, indicating the direction and strength of the electric field.

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Answer:

\(29861.23\ \text{m/s}\)

Explanation:

\(R=\text{Radius of Earth's orbit}=1.5\times10^{11}\ \text{m}\)

\(T=\text{Time taken by the Earth to complete the orbit}=365.3\ \text{days}\)

Assuming the orbit is of circular shape the distance the Earth has to travel is the circumference

\(C=2\pi R\\\Rightarrow C=2\pi\times 1.5\times10^{11}\\\Rightarrow C=942477796076.938\ \text{m}\)

Velocity is given by

\(v=\dfrac{C}{T}\\\Rightarrow v=\dfrac{942477796076.938}{365.3\times 24\times 60\times 60}\\\Rightarrow v=29861.23\ \text{m/s}\)

The speed of the Earth around the Sun is \(29861.23\ \text{m/s}\)

a) The Froude number of this flow is approximately 0.61.

b) The estimated depth of flow in this stream is approximately 1.8 meters.

a) The Froude number (Fr) is a dimensionless quantity used to determine the behavior of flow in open channels. It is calculated as the ratio of the flow velocity to the velocity of surface gravity waves. The formula for Froude number is:

Fr = Velocity of Flow / √(Acceleration due to Gravity × Depth)

Mean velocity of flow (Velocity of Flow) = 1.1 m/s

Velocity of the ripples propagating directly upstream = 0.61m/s

b) Using the given information, we can use the formula for the velocity of surface gravity waves:

Velocity of Surface Waves = √(Acceleration due to Gravity × Depth)

Rearranging the equation, we can solve for the depth:

Depth = (Velocity of Surface Waves / √(Acceleration due to Gravity))

Substituting the given values (Velocity of Surface Waves = 0.67 m/s, Acceleration due to Gravity ≈ 9.8 m/s²), we can calculate the depth:

Depth ≈ (0.67 m/s / √(9.8 m/s²)) ≈ 1.8 meters

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Answer:

Xe

Explanation:

At low temperatures or high pressures, real gases deviate significantly from ideal gas behavior. It is also good to know that ideal gas law assumes that the gas molecules have negligible/no size.

Keeping that in mind, Xe is the largest of the bunch, and therefore is expected to have the greatest deviation of the ideal gas when under high pressure or low temperature.

Hope this helped

Answer:

Following are the solution to this question:

Explanation:

That light takes a very long time to hit the planet, and the object is far off the earth. The light of such an item near to the planet takes less time to enter it. The star is 2,5 million light-years from the Planet on the far side of the Andromeda Galaxy. But on the other hand, the moon is 15 crore miles from the earth, so sunlight is quickly reached on the ground as the other thing.  

That milky way away from the earth is 66,500 light-years far, that distance between Earth and Orion nebula is 1,344 light-years, with such a distance of 4,367 light-years. The earth is 5.2261 trillion km apart from Pluto.

Answer:

The color blue emerges at 19.16° and the color red emerges at 19.32°.

Explanation:

The angle at which the two colors emerge can be calculated using the Snell's Law:

\(n_{1}sin(\theta_{1}) = n_{2}sin(\theta_{2})\)

Where:

n₁ is the refractive index of the incident medium (air) = 1.0003

n₂ is the refractive index of the refractive medium:

    blue light in crown glass = 1.524

    red light in crown glass = 1.512

θ₁ is the angle of the incident light = 30°

θ₂ is the angle of the refracted light                            

For the red wavelengths we have:

\( \theta_{2} = arcsin(\frac{n_{1}sin(\theta_{1})}{n_{2}}) = arcsin(\frac{1.0003*sin(30)}{1.512}) = 19.32 ^{\circ} \)

For the blue wavelengths we have:

\( \theta_{2} = arcsin(\frac{n_{1}sin(\theta_{1})}{n_{2}}) = arcsin(\frac{1.0003*sin(30)}{1.524}) = 19.16 ^{\circ} \)

Therefore, the color blue emerges at 19.16° and the color red emerges at 19.32°.  

I hope it helps you!

The speed of the wave is 11 m/s, the wavelength is 1 m, and the period is 0.1 seconds.

The given information describes the characteristics of a wave. The speed of the wave, which represents how fast it propagates through a medium, is stated as 11 m/s. The wavelength, which is the distance between two consecutive points in the wave that are in phase, is mentioned as 1 m. The period, which refers to the time it takes for one complete cycle of the wave, is given as 0.1 seconds.

These parameters are fundamental properties of a wave and are interconnected through the wave equation: speed = wavelength / period. Understanding these values helps in analyzing the behavior and properties of the wave, such as its frequency and amplitude, and allows for further exploration of wave phenomena in various fields, including physics and engineering.

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Photons with a frequency of 1.0 × 1020 hertz strike a metal surface. If electrons with a maximum kinetic energy of 3.0 x \(10^-^1^4^\) joule are emitted, the work function of the metal is . 3.6 x\(10^-^1^4^\) J.

The correct answer is option 3.

To determine the work function of the metal, we can use the equation:

E = hf - ϕ

where:

E is the energy of the emitted electron,

h is Planck's constant (6.626 × \(10^-^3^4\) J·s),

f is the frequency of the photons,

ϕ is the work function of the metal.

Given:

Frequency of photons (f) = 1.0 × \(10^2^0\)Hz

Maximum kinetic energy of emitted electron (E) = 3.0 × \(10^-^1^4^\) J

We can rearrange the equation to solve for the work function:

ϕ = hf - E

Substituting the given values, we have:

ϕ = (6.626 × \(10^-^3^4\) J·s)(1.0 ×\(10^2^0\) Hz) - (3.0 × \(10^-^1^4^\) J)

Simplifying the equation, we get:

ϕ = 6.626 × \(10^-^1^4^\) J - 3.0 ×\(10^-^1^4^\)J = 3.626 × \(10^-^1^4^\) J

Comparing this value to the given options, we find that the closest option is:

3. 3.6 x \(10^-^1^4^\) J

Therefore, the correct option is option 3: 3.6 x \(10^-^1^4^\)J.

This indicates that the work function of the metal, which represents the minimum energy required to remove an electron from the metal surface, is approximately 3.6 x\(10^-^1^4^\) J.

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The negative value for Kmax indicates that the electron is bound to the tungsten surface and cannot be ejected. The speed of the fastest electrons ejected from a tungsten surface \($K_{max} = -6.08 \times 10^{-19} \text{ J}$\).

When light with photon energy greater than or equal to the work function of a metal surface shines on it, electrons can be ejected from the surface. The maximum kinetic energy of the ejected electrons is given by the difference between the photon energy and the work function, and can be calculated using the equation:

Kmax = hν - φ

where Kmax is the maximum kinetic energy of the ejected electrons, h is Planck's constant, ν is the frequency of the incident light, and φ is the work function of the metal.

In this case, the photon energy of the incident light is 5.99 eV, which is greater than the work function of tungsten, which is 4.50 eV. Therefore, electrons can be ejected from the tungsten surface, and the maximum kinetic energy of the ejected electrons can be calculated as follows:

\($K_{max} = (6.626 \times 10^{-34} \text{ J s}) \times (4.53 \times 10^{14} \text{ Hz}) - (4.50 \text{ eV} \times 1.602 \times 10^{-19} \text{ J/eV})$\)

\($K_{max} = 1.13 \times 10^{-19} \text{ J} - 7.21 \times 10^{-19} \text{ J}$\)

\($K_{max} = -6.08 \times 10^{-19} \text{ J}$\)

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False. Reduction is actually the gain of electrons, usually accompanied by the addition of hydrogen to a molecule or atom. This process is commonly used in organic chemistry to create new molecules with specific properties. During reduction, a molecule or atom gains electrons, and since electrons have a negative charge, the overall charge of the molecule or atom decreases. This is why the process is called reduction.

In organic chemistry, reduction reactions typically involve the use of reducing agents, which are compounds that are capable of donating electrons to other molecules or atoms. Some common reducing agents include lithium aluminum hydride, sodium borohydride, and hydrogen gas. These agents are often used in conjunction with other reagents and solvents to achieve the desired chemical reaction.

Overall, reduction is an important process in chemistry that is used to create new molecules with specific properties. By gaining electrons and hydrogen, molecules and atoms can become more stable and less reactive, making them useful for a wide range of applications. Whether you are studying organic chemistry or simply interested in the basic principles of chemistry, understanding reduction is an essential part of your knowledge base.
False. The statement provided is incorrect. Reduction is actually the process of gaining electrons or adding hydrogen to a molecule or atom, not removing hydrogen or electrons.

In a reduction reaction, a substance undergoes a change in its oxidation state, typically by gaining electrons or hydrogen atoms. This process often occurs in tandem with oxidation, where another substance loses electrons or hydrogen atoms, and the two reactions together are known as a redox (reduction-oxidation) reaction.

In summary, reduction is the process of gaining electrons or adding hydrogen to a molecule or atom, while oxidation involves the loss of electrons or hydrogen atoms.

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