What best describes electrons

The particle moves to the right through a potential difference of Vb-Va = 3.20×10^-19 J / q.

The particle, initially at rest, is acted upon only by the electric force and moves from point a to point b along the x axis, increasing its kinetic energy by 3.20×10^-19 J. To determine the direction and potential difference through which the particle moves, we can use the relationship between electric potential difference (V) and electric force (F) on a charged particle.

The electric potential difference between two points is defined as the work done per unit charge to move a particle from one point to the other. The work done on a charged particle by an electric force is given by the equation

W = Fdcos(theta)

where F is the electric force, d is the distance moved by the particle, and theta is the angle between the direction of the force and the direction of the displacement.

In this case, since the particle is only acted upon by the electric force and moves along the x-axis, the angle between the direction of the force and the direction of the displacement is 0, and the work done by the electric force is given by W = Fdx.

Therefore, the potential difference between point a and point b is given by Vb - Va = W/q, where q is the charge of the particle.

Given that the particle's kinetic energy increases by 3.20×10^-19 J and the work-energy principle states that work done on a particle is equal to the change in kinetic energy, we can say that the work done on the particle is equal to 3.20×10^-19 J.

Now, the direction of the force can be determined by the sign of the potential difference, since the electric force is given by

F = -q(dV/dx).

Given that the potential difference is positive, the electric force is negative, meaning that the force is directed opposite to the direction of motion of the particle, therefore the direction of motion is to the right.

Therefore, the particle moves to the right through a potential difference of Vb-Va = 3.20×10^-19 J / q.

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Answer:

V = I * R        voltage drop

P = I * V = I^2 * R        power

I = P / V = 327 / 15 = 21.8 amps

b)   I = 21.8 amps

a) R = P / I^2 = 327 / 21.8^2 = .69 ohms

Check:

V = I R = 21.8 * .69 = 15 Volts

The term you are looking for is "chemical battery". Chemical batteries work by converting chemical energy into electrical energy through a series of chemical reactions. These reactions take place within the battery's cells, which are composed of two electrodes and an electrolyte.

When the battery is connected to a circuit, the chemical reactions produce an electrical current that can be used to power devices. Chemical batteries are widely used in many applications, including consumer electronics, electric vehicles, and renewable energy systems. They are a crucial component of our modern technological society, and ongoing research is focused on developing more efficient and sustainable battery technologies to meet growing energy demands.

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According to the given statement 70.4 m/s²  is the acceleration due to gravity on that planet.

Acceleration is the rate of increase in a moving object's speed and direction over time. When something travels faster or slower, it is considered to be accelerating. Motion on a circle increases even while the speed remains constant because the direction is always shifting.

W = 741 N is the weight of a person on Earth.

The formula below provides a person's weight as:

W = mg

The acceleration brought on by gravity is known as g.

m = W/m

m = 741/9.8

m =  75.61 kg

W' = 5320 N, where W' represents the weight of a person on the surface of a nearby planet.

The acceleration brought on by gravity on that planet is g'. So,

g' = W'/m

g' = 5320/75.61

g' = 70.4m/s²

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Relationship between the electric field and the electric potential difference is that the potential difference is depending on the strength of the electric field and the distance over which it acts.

In the presence of a point charge in a powerful and constant electric field, there is a relationship between the electric field and the electric potential difference. The electric field is a measure of the force experienced by a charged particle placed in the field, per unit charge. It is a vector quantity, indicating both the magnitude and direction of the force. The electric potential difference, on the other hand, is a measure of the work done in moving a unit positive charge from one point to another in an electric field.

The relationship between the electric field (E) and the electric potential difference (V) can be described by the following equation:

V = E × d

Here, V represents the electric potential difference, E represents the electric field strength, and d represents the distance over which the potential difference is measured.

This equation indicates that the electric potential difference is directly proportional to the electric field strength and the distance over which the potential difference is measured. In other words, a stronger electric field will result in a larger potential difference, given the same distance. Similarly, a larger distance will result in a larger potential difference, given the same electric field strength.

Overall, the electric field and electric potential difference are related, with the potential difference depending on the strength of the electric field and the distance over which it acts.

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Answer:

Venus is the hottest planet in our solar system. Its thick atmosphere is full of the greenhouse gas carbon dioxide, and it has clouds of sulfuric acid. The atmosphere traps heat, making it feel like a furnace on the surface. It's so hot on Venus, the metal lead would melt.

I HOPE IT HELPS YOU

Answer:

elephant

Explanation:

Answer:

elephant

Explanation:

Answer: 1,250 joules

Explanation: elastic potential energy is half of the spring constant multipied by extention squared so its 12.5 multiplied by 100 which is 1,250

The main answer to the question is that the source separation and interference patterns in the given diagrams can be analyzed to determine the relationship between the source separation and the observed interference pattern.

In the diagrams, the solid lines represent regions of maximum constructive interference, where the waves from the two sources reinforce each other, resulting in a higher amplitude. The dashed lines represent regions of complete destructive interference, where the waves from the two sources cancel each other out, resulting in a net amplitude of zero.

To determine the source separation, we can analyze the nodal lines and lines of maximum constructive interference in the shaded region. The nodal lines are regions of destructive interference where the wave amplitude is zero. By measuring the distance between adjacent nodal lines, we can determine the wavelength of the waves.

Next, we can measure the distance between the lines of maximum constructive interference, which will help us determine the source separation. The distance between adjacent lines of maximum constructive interference is equal to half the wavelength (l/2). By counting the number of these distances between the two sources, we can estimate the source separation.

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Answer:

10m/s I believe

Explanation:

F=MA

A=F/M

A=2/0.2

A=10m/s

Answer:

At all times the acceleration a = -9.80 m/s^2   assuming 32.1 is chosen positive

At the top the velocity will be zero because the object is turning around

a = (v2 - v1) / t = -v1 / t since the velocity at the top is zero

t = -v1 / a = -32.1 / -9/8 = 3.26 sec      time to reach top

To determine the charge, we can use the equation for the electric field due to a point charge:

E = k * q / r^2

Where E is the electric field, k is the Coulomb constant (8.98755 x 10^9 Nm^2/C^2), q is the charge, and r is the distance from the point charge.

We can rearrange this equation to solve for q:

q = E * r^2 / k

Plugging in the given values:

q = (68.3 N/C) * (28.8 m)^2 / (8.98755 x 10^9 Nm^2/C^2)

q = (68.3 N/C) * (826.24 m^2) / (8.98755 x 10^9 Nm^2/C^2)

q = (68.3 N/C) * (826.24 m^2/C^2)

q = (68.3 N/C) * (826.24 / 8.98755 x 10^9) C

q = (68.3 N/C) * (9.26 x 10^-9) C

q = 6.36 x 10^-7 C

The charge is approximately 6.36 x 10^-7 Coulombs.

The moving particles in a gas collide with each other and also with the walls of the container and as the collision increases, gases exert more pressure on the walls of the container.

Kinetic theory of matter states that “Matter is made up of those substances or particles which are constantly moving.” The energy level of the particles depends upon the temperature possessed by the matter. This helps us to determine whether that matter is in a solid, liquid, or gas state.

Thus, using the particle model of matter, we can how a gas exerts pressure on the surfaces of its container, and this occurs when the gas particles collides with one another. This collision of gas particles exert pressure on the surface of the container.

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Answer:

Rolling friction

Explanation:

Option B is correct

Answer:

1. 571.43m/s

2. 142.9m and 342.9m

Explanation:

1.Take the difference in time.

1.2-0.7=0.7 seconds

Take the distance between them and divide with differnce in time.

400÷0.7=571.43 seconds.

2.Take the time of the two men and divide by two.

0.5÷2= 0.25 secs

1.2÷2= 0.6 secs

multiply each with the velocity.

0.25×571.43=142.9m

0.6×571.43=342.9m

Answer:

10 m/s

Explanation:

vi = 70 m/s

a = -1.5 m/s²

t = 40 s

vf = vi + at

= 70 + (-1.5 x 40)

= 10 m/s

The final velocity will be "10 m/s".

Given:

Initial velocity,

Deceleration,

Time,

As we know,

→ Final velocity, \(v_f = v_i+at\)

By substituting the values, we get

                               \(= 70+(-1.5\times 40)\)

                               \(= 70+(-60)\)

                               \(= 70-60\)

                               \(= 10 \ m/s\)

Thus the above answer is appropriate.

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a) Mutual inductance = 0.108 H; Coupling coefficient = 0.482. b) - 4.95 V.


a) Mutual inductance, M between coil A and coil B can be given as:

M = k√(L_AL_B) here, k is the coupling coefficient, L_A and L_B are the inductances of the coil A and coil B respectively. Since 54% of flux produced by coil A links coil B,

So, K = 0.54

L_A = N_A Φ/I_AL_A

= 8120 × 0.02/6

= 27.07 mH

L_B = N_B Φ/I_BL_B

= 11842 × 0.078/6

= 154.63 mH

M = k√(LALB) = 0.482 × √(27.07 × 0.15463) = 0.108 H

b) The emf induced in coil B can be given as:-

ε = M (dI_B/dt)/L_B

ε = 0.108 × (-6/0.015) / 0.15463 = -4.95 V

Thus, the emf induced in coil B when the current is reversed in 0.015 seconds is -4.95 V.

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Answer:

boiling point is directly proportional to air pressure. as the air pressure decreases due to increase in elevation, boiling point of the water on top of a mountain would be less than the boiling of water at sea level

Explanation:

There would be no change as the wave speed would be 1. Option B

According to the wave equation for a string, the wave speed (v) is given by the equation:

v = √(T/μ)

Tripling both the tension in a guitar string and its mass per unit length;

T₂ = 3T₁ (tripling the tension)

μ₂ = 3μ₁ (tripling the mass per unit length)

We have for  the wave speed

v₂ = √(T₂/μ₂)

= √((3T₁)/(3μ₁))

= √(T₁/μ₁)

= v₁

We can see that based on the calculations that we have done in the problems. It is plane that there is no change in the wave speed.

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Answer:

True

Explanation:

idk

The form of energy stored in a stretched spring is elastic potential energy. When a spring is stretched or compressed, it possesses potential energy due to the deformation of its structure.

This potential energy is called elastic potential energy because it is associated with the elasticity of the spring.

As the spring is stretched, work is done to overcome the forces within the spring that resist the change in its length. This work is converted into potential energy, which is stored in the spring. The amount of potential energy stored in the spring is directly proportional to the amount by which it is stretched or compressed.

When two forces are simultaneously applied to a spring in opposite directions, it may result in elongation or contraction of the spring, depending on the magnitude and direction of the forces. If the applied forces are strong enough to overcome the spring's elasticity, the spring will undergo deformation and exhibit elongation or contraction. This deformation is a manifestation of the stored elastic potential energy being converted into mechanical energy.

Shear, bending, and intermolecular binding energy are not directly related to the stretching of a spring.

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Answer:

The description of the energy of the skier at point W is,

At point W, potential energy is greatest and kinetic energy is least

Explanation:

The given parameters are;

The highest point of the skier's path = Point W

The lowest point of the skier's path = Point X

The height of the peak after point X = Intermediate between point W and point X

The potential energy of the skier, P.E. = m·g·h

The kinetic energy of the skier, K.E. = 1/2·m·v²

The total mechanical energy of the skier, M.E. = P.E. + K.E.= Constant

Where;

m = The mass of the skier

g = The acceleration due to gravity = 9.8 m/s²

h = The height of the skier

v = The velocity of the skier

Therefore, the P.E. of the skier is highest at the highest point of the skier's path which is the point W, where h = Maximum

Similarly, the potential energy of the skier will be lowest at point X which is the lowest point on the skier's path

From P.E. + K.E. = constant, the kinetic energy will be least at point W, where the potential energy is highest.

Therefore, the description of the energy of the skier at point W is that the potential energy is greatest and kinetic energy is least.

Answer:

Physics is the study of the interactions between physical systems. The physicist attempts to describe the interaction with the most fundamental and general law or principle possible. ... All electrical phenomena involve the interaction between positive and negative charges.

Answer:

What is Physics at NTNU?

Physics is a natural science based on experiments, measurements and mathematical analysis with the purpose of finding quantitative physical laws for everything from the nanoworld of the microcosmos to the planets, solar systems and galaxies that occupy the macrocosmos.

The laws of nature can be used to predict the behaviour of the world and all kinds of machinery. Many of the everyday technological inventions that we now take for granted resulted from discoveries in physics. The basic laws in physics are universal, but physics in our time is such a vast field that many subfields are almost regarded as separate sciences.

The early Greeks established the first quantitative physical laws, such as Archimedes' descriptions of the principle of levers and the buoyancy of bodies in water. But they did not actually conduct experiments, and physics as science stagnated for many centuries. By the 17th century, however, Galileo Galilei and later Issac Newton helped pioneer the use of mathematics as a fundamental tool in physics, which led to advances in describing the motion of heavenly bodies, the laws of gravity and the three laws of motion.

The laws of electricity, magnetism and electromechanical waves were developed in the 1800s by Faraday and Maxwell, in particular, while many others contributed to our understanding of optics and thermodynamics.

Modern physics can be said to have started around the turn of the 20th century, with the discovery of X-rays (Röntgen 1895), radioactivity (Becquerel 1896), the quantum hypothesis (Planck 1900), relativity (Einstein 1905) and atomic theory (Bohr 1913).

Quantum mechanics (Heisenberg and Schrödinger), beginning in 1926, also gave scientists a better understanding of chemistry and solid state physics, which in turn has led to new materials and better electronic and optical components. Nuclear and elementary particle physics have become important fields, and particle physics is now the basis for astrophysics and cosmology.

The final velocity of April, the skateboard, and the watermelon after the collision is 0.18 m/s.

The final velocity of April, the skateboard, and the watermelon after the collision is calculated by applying the principle of conservation of linear momentum as shown below;

m1u1 + m2u2 = v (m1 + m2)

where;

(55 x 0) + (2 x 5) = v (55 + 2)

10 = 57v

v = 10/57

v = 0.18 m/s

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The electric field strength at a distance of 1.20 m on the x-axis is -1.5 × 10⁴ N/C.

To find the electric field strength at a distance 1.20 m on the x-axis, we can use Coulomb's law:

\($$F=k\frac{q_1q_2}{r^2}$$\)

where F is the force between two charges, q1 and q2 are the magnitudes of the charges, r is the distance between the charges, and k is the Coulomb constant.For a single point charge q located at the origin of the x-axis, the electric field E at a distance r is given by:

\($$E=\frac{kq}{r^2}$$\)  where k is the Coulomb constant.

So, let's calculate the electric field due to each charge separately and then add them up:

For the +2.0 C charge at x = 0, the electric field at a distance of 1.20 m is:\($$E_1=\frac{kq_1}{r^2}=\frac{(9\times10^9)(2.0)}{(1.2)^2}N/C$$\)

For the -3.0 C charge at x = 0.40 m, the electric field at a distance of 1.20 m is:

\($$E_2=\frac{kq_2}{r^2}\)

\(=\frac{(9\times10^9)(-3.0)}{(1.20-0.40)^2}N/C$$\)

The negative sign indicates that the direction of the electric field is opposite to that of the positive charge at x = 0.

To find the net electric field, we add the two electric fields\(:$$E_{net}=E_1+E_2$$\)

Substituting the values of E1 and E2:

\($$E_{net}=\frac{(9\times10^9)(2.0)}{(1.2)^2}-\frac{(9\times10^9)(3.0)}{(0.8)^2}N/C$$E\)

net comes out to be -1.5×10⁴ N/C.

Therefore, the electric field strength at a distance of 1.20 m on the x-axis is -1.5 × 10⁴ N/C.

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To absorb the kinetic energy of the attached moving masses and thus provide protection at the end of a piston's travel, a pneumatic cylinder should be equipped with pneumatic valves.

For machines to operate, pneumatic systems use both potential and kinetic energy. Compressed air is used to store energy in pneumatic systems. When the potential compressed air is allowed to expand, kinetic energy (working energy/pressure) occurs. Pneumatic systems include a wide range of components that make them simple to use and very advantageous. To help consumers get the complete control they actually need, pneumatic timers, pneumatic valves, pneumatic controls, pneumatic cylinders, and pneumatic indicators are all available.

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By using optical and radio telescopes, the meteoroids are characterized and their shape, rotation and physical composition are determined.

Scientists have considered some criteria to detect the meteoroids and prevent collisions so that earth is protected from their impact. This includes finding the position and size of the meteoroids  and so the orbit of the earth could be changed and thus there is possibility for preventing collision.

By using optical and radio telescopes, the meteoroids are characterized and their shape, rotation and physical composition are determined. With the early recognition of the meteoroid movement and their position, the evacuation of people from the particular areas of possible impact can be done.

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Answer:

satellite B

Explanation:

A .F= G (mM)/r²

B .F= G (2mM)/r² = 2G (Mm)r²

C .F= G (3mM)/(2r)² = ¾G (mM)/r²

D .F= G (4mM)/(2r)² = G (mM)/r²