Hi Guys
Can somebody explain me why does all protons be at nucleus of a atom only ..
..I once read that same charges repel so .... which force or phenomena breaks such a simple law??

Answer:

The long, light-colored lines extending from many craters on the Moon are called rays and are "crater rays".

Explanation:

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As a charged helium balloon moves upward, the electrical potential decreases and the balloon's electrical potential energy decreases. The correct option is D.

Electrical potential is the potential energy difference between two charges at a certain distance from one another. Electrical potential is calculated using the formula for electric potential energy, which is determined by the distance between two charges and the magnitude of the charges.

Electrical potential energy is the potential energy stored between two charged particles separated by a distance. Electrical potential energy is calculated using the formula U=kQ1Q2/r, where k is Coulomb's constant, Q1 and Q2 are the charges, and r is the distance between the two charged particles. The SI unit of electric potential energy is joules (J).

Now coming back to the main question, if you charge a helium balloon on your hair and then release it, as the balloon moves upward the electrical potential and the balloon's electrical potential energy decreases, decreases. Hence, option D, decreases, decreases is the correct answer.

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The phase of the moon when the moon is on the opposite side of the earth from the sun is the full moon. This happens when the sun, earth, and moon are aligned, with the earth in the middle.

The full moon appears when the sun’s light reflects off the entire surface of the moon, making it appear completely illuminated from our perspective on earth.Therefore, option A is the correct answer: The full moon.

When the moon is on the opposite side of the Earth from the sun, it is in the full moon phase. During this phase, the sun illuminates the entire side of the moon facing the Earth, making it appear fully lit and round. This occurs because the sun, Earth, and moon are aligned in a straight line, with the Earth in the middle. The full moon phase is characterized by a bright, round shape and is often considered the most visually striking lunar phase. It occurs approximately once every 29.5 days as the moon orbits around the Earth.

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Answer:Magnitude of the car's acceleration is 3.5 m/s²

Given:

Mass of car = 1,000 kg

Net force applied by car = 3,500 N

Find:

Magnitude of the car's acceleration

Computation:

Net force = Mass × Acceleration

So,

3,500 = 1,000 × Acceleration

Acceleration = 3,500 / 1,000

Acceleration = 3.5 m/s²

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The power of the transmitter and receiver and the height of the broadcast and receiving antennas determine the Distance a radio signal will travel.

A sinusoidal voltage at 147.5 MHz is applied by the transmitter to the dipole antenna that serves as its antenna. With a matching oscillating magnetic field perpendicular to the antenna, this creates an oscillating electric field across the antenna. These travel as one electromagnetic wave, or radio wave, from the antenna.

With the oscillating magnetic field perpendicular to the antenna axis and the oscillating electric field parallel to it, this wave propagates in all directions in a plane that passes through the transmitter's antenna's center. It moves at the speed of light, and as was previously mentioned, its wavelength and oscillation frequency are connected by the formula = c/v.

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Solar granulation is the "boiling" of the surface of the Sun caused by convection of solar material.

It is a result of the movement of hot gas from the interior of the Sun to the photosphere,

which is the visible surface of the Sun. The convection creates cells of gas that are separated by dark lanes.

A granule is a convection cell in the Sun's photosphere. They are caused by convection currents of plasma in the Sun's convective zone, directly below the photosphere. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation.

Solar granulation is usually visible in white-light images of the Sun.

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The change in the momentum of the object moving along a straight line is determined as 3 Ns.

The change in the momentum of the object is equal to impulse received by the object.

The impulse received by the object is determined from the product of force and time of action.

J = Ft

Ft() = kt + τ

at time 0 s

Ft(0) = 1(0) + 1

Ft(0) = 1 Ns

at time , t = 3 s

Ft(3) = 1(3) + 1

Ft(3) = 4 Ns

Change in momentum from 0 s to 3 s, =  4 Ns - 1 s = 3 Ns

Thus, the change in the momentum of the object moving along a straight line is determined as 3 Ns.

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In Price's verbal equation, material properties refer to the characteristics and behaviors of a material, mass fabric relates to the distribution and arrangement of mass within a structure, and mass properties involve the quantitative measures of mass distribution and its effects on the structural performance.

(a) Material properties in Price's verbal equation pertain to the specific attributes and qualities of a material that influence its mechanical behavior, such as strength, stiffness, density, thermal conductivity, and elasticity. These properties determine how a material will respond to external forces and environmental conditions, and they play a crucial role in the design and analysis of structures.

(b) Mass fabric refers to the spatial arrangement and distribution of mass within a structure. It considers the organization, orientation, and connectivity of the structural elements that contribute to the overall mass distribution. Mass fabric affects the structural behavior, load transfer paths, and structural efficiency of a system. By understanding the mass fabric, engineers can optimize the arrangement of components to achieve desired structural performance.

(c) Mass properties involve the quantitative measures of mass distribution within a structure and its impact on its mechanical behavior. Mass properties include parameters such as mass, center of mass, moments of inertia, and radii of gyration. These properties provide important information for analyzing the dynamic response, stability, and vibrational characteristics of structures. They also influence the structural design, material selection, and optimization processes.

In Price's verbal equation, these concepts collectively contribute to understanding the behavior and performance of structures, enabling engineers to make informed decisions in design, analysis, and optimization. By considering material properties, mass fabric, and mass properties, a comprehensive understanding of the structural system can be achieved.

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The momentum of an object can be calculated with the formula below:

Where p is the momentum, m is the mass and v is the velocity.

The mass of the bus is greater than the mass of the car.

So, if they have the same velocity, the momentum of the bus will be greater.

Correct option: a.

Both the ships will see the other ship with the same velocity i.e, 0.999c m/s.

To calculate the velocity of one ship as seen by the other ship, we need to use the velocity transformation formula derived from Lorentz transformation:

V = {v1 - v2/1-(v1)(v2)} x c

Here v1 and v2 are the velocities of the two ships

As the ships are heading towards each other v1 = -v2 = 0.999c

Putting this value in the above equation

V = 0.999c + 0.999c/1 - (0.999c)(0.999c) x c = 0.999c m/s

Hence, both the ships will see the other ship with the same velocity i.e, 0.999c m/s.

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From conservation of momentum we have that:

Therefore the velocity of the 1 kg ball after the collision is 2 m/s to the left.

The total charge on the interior of the conductor is zero.

The total charge on the exterior of the conductor is 8q.

Due to large number of electrons available for conduction in a conductor, most of the electrons moves to surface leaving zero net charge inside the conductor.

Thus, the total charge on the interior of the conductor is zero.

The total charge on the exterior of the conductor is calculated as follows;

Q = q + 7q = 8q

Thus, the total charge on the exterior of the conductor is 8q.

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The difference in power for two people carrying the boxes up the ramp is 30 W.

Given the following data:

W = 40.0 N is the weight of a box.

The ramp's length is L = 2.00 m.

The platform height is h = 1.0 m.

t = 2.0 s is the time interval for the first person.

t' = 4.0 s is the time interval for the other person.

Power is the rate at which energy is used. The expression for the Power is given in the given question as,

P = W×(L+h)/t

Assume that you are solving for the first person.

P₁ = W(L+h)/t₁.................................................................. (1)

Substitute the following values into equation (1):

P₁ = 40(2+1)/2

P₁ = 20(3) (3)

P₁ = 60 W.

Regarding the second person,

P₂ = W(L+h)/t₂..................................................................... (2)

Fill in the blanks in equation (2) as follows:

P₂ = 40(2+1)/4

P₂ = 10*(3) *3)

P₂ = 30 W

Obtaining the difference in power as

P = P₁ - P₂

P = 60-30

P = 30 W

As a result, we can conclude that the difference in power for two people carrying the boxes up the ramp is 30 W.

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Answer:

B

Explanation:

The minimum amount of water needed for bathing assuming the water begins at room temperature is 16.58kg.

When two bodies at different temperature come into contact, they share the heat through conduction. After some time, temperature of both becomes equal. This condition is said to be a body in thermal equilibrium with other.

Heat gained by the water = heat lost by the ill person

m x Cw x ΔT = M x Cp x Δt

where, mass of person M = 80kg, Cp =specific heat of body =3470, specific heat of water Cw= 4186, then mass of water m will be

m x 4186 x (37-25) =- 80 x 3470 x (37-40)

m = 16.58kg

Thus, the mass of water needed is 16.58kg.

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The rate at which the speed and direction of a moving object vary over time.  Acceleration is 4 m/s2.

A point or object going straight ahead is accelerated when it accelerates or decelerates.

Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.

Acceleration is a vector quantity since it has both a magnitude and a direction. A vector quantity is also velocity. The velocity vector change during a time interval divided by the time interval is the definition of acceleration.

w  i  =12×2π rad

     =24πs/ ra

=6/ 24π=−4π sec  2rad

​

Therefore, The rate at which the speed and direction of a moving object vary over time.  Acceleration is 4 m/s2.

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The resistance is inversely related to the wire's cross-sectional area. and the amount of flowing current are directly related.

The resistance of the wire decreases with increasing cross-sectional area while increases with decreasing cross-sectional area. Additionally, as R 1/A, a conductor's resistance is inversely related to its cross-sectional area (A). Thus, doubling its cross-sectional size would reduce its resistance by half, while halving it would increase it by the same amount. If the temperature stays constant, the current flowing in a circuit is directly proportional to the applied voltage and inversely proportional to the circuit resistance.

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Answer:

Petrochemicals are a set of chemical compounds that fuel a wide array of products across the globe. They are made of hydrocarbons that are separated and extracted from petroleum (crude oil) and natural gas and are at the core of multiple industries, including: Cosmetics. Electronics. Packaging.

Answer:

B. I think Gasoline, natural gas, and diesel fuel

I'm truly sorry if it's wrong :(

Explanation:

Answer:

It would go out the bottom hole faster.

Explanation:

It goes down the bottom hole faster because the water would get poured out the bottom before they even flipped the water bottle.

answer:

click on the picture, hope it helps

The magnitude of the electric field at that location is is 40  N.C⁻¹.

The force per unit charge exerted on a positive test charge that is at rest at a given position is the force per unit charge that is used to define the electric field analytically.

Electric charge or magnetic fields with variable amplitudes can produce an electric field.

Given parameters:

Charge of the positive test charge, q =  5.0x10⁻⁶ C.

Electric force exerted by the electric field, F = 2.0x10⁻⁴ N.

Then, electric field at the position, E = F/q

= 2.0x10⁻⁴ / 5.0x10⁻⁶ N.C⁻¹.

= 40  N.C⁻¹.

Hence,  the magnitude of the electric field at the location of the test charge is 40  N.C⁻¹.

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If a trait is X-linked dominant, it means that the gene for the trait is located on the X chromosome.

Force is a physical quantity that describes the interaction between objects. It is a vector quantity, meaning it has both magnitude and direction. Force is a measure of how much an object is pushed or pulled in a specific direction. The unit of force in the International System of Units (SI) is the Newton (N). Forces can cause a change in the motion of an object. For example, a force can cause an object to speed up, slow down, change direction, or remain in its current state of motion. The study of forces and their effects on objects is known as mechanics.

Here,

This means that a female with one dominant X chromosome and one recessive X chromosome will express the dominant trait, while a male with only one X chromosome will also express the dominant trait. Females are more likely to be carriers of X-linked dominant traits, while males are more likely to express the traits themselves.

X-linked dominant traits are expressed when the gene on the X chromosome is dominant over the gene on the corresponding chromosome.

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The symbol F in the formula indicates that Chang needs to find the net force acting on the object in a specific direction. In physics, the symbol F represents force. The net force is the vector sum of all the individual forces acting on an object.

To determine the net force, Chang needs to consider all the forces acting on the object and their directions. Forces can act in different directions, and their magnitudes and directions can vary. The net force takes into account the combined effect of all these forces on the object's motion.

Chang needs to consider both horizontal and vertical forces, as well as any other forces acting on the object, such as friction or tension. By taking into account all these forces, Chang can calculate the net force acting on the object.

The net force is not obtained by simply multiplying the horizontal and vertical forces together. The net force is determined by adding or subtracting the individual forces depending on their directions. It is the overall force that determines the acceleration and subsequent motion of the object.

Therefore, Chang needs to find the net force acting on the object in a specific direction by considering all the forces and their directions that are influencing the object's motion.

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V1 = Vo . This results in the conventional equation Vo = Vidt, where Vo is the integral output signal and Vi is indeed the signal input to the integrator.

Naturally, any coefficient with friction larger than 0.141—which is the minimum number for—will prevent the car from slipping.Keep in mind that the frictional force is orthogonal to the velocity.However, it is still moving in the direction needed to counteract the motion that'd happen in the absence of friction.

Yes.Because the adhesion forces between molecules are stronger when the formular is substantially polished, frictional force increases.In this situation, the friction coefficient will be higher than one.

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Answer:

reduce, reuse, and recycle paper,plastic, electricity, glass, fiber

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