an electron is placed at a position on the x-axis where the electric potential is 10 v. which idea below best describes the future motion of the electron?

Answer:

p = 15 newts

Explanation:

p is momentum

also there's a calculator to answer these questions.

Answer:

C voltage

Explanation:

Voltage is the change in electric potential so basically current flows from high potential to low potential due to voltage.

Answer:

Look at the mirror from the positive axis and  suppose the incident ray is at angle at 40 from the y-axis

Incident ray at 50 deg

reflected ray at 130 deg

total angle of deflection = 130 - 50 = 80 deg

Now rotate the mirror by 20 deg

incident ray at 30 deg

reflected ray at 150 deg    (angle of incidence must equal angle of reflection)

total angle of deflection = 150 - 30 = 120 deg

the difference between 2 reflected rays = 120 - 80 = 40 deg

So if you increase (decrease) the incident angle the reflected ray will  be increased by twice the angle of rotation of the mirror - or the perpendicular to the mirror increases by X degrees the angles of incidence and reflection will each increase by X deg

Answer:

Yes, in case of uniform velocity

Explanation:

This is the case of uniform velocity. If a body covers equal displacement in equal intervals of time, then the velocity of a body is said to be ‘Uniform Velocity’. It meas that the velocity of a body remains constant during the motion and it does not change.

Since, acceleration is defined as the rate of change of velocity.

Therefore, if there is no change in velocity or in other words the change in velocity is zero, then the acceleration is also zero.

a = ΔV/t = 0/t

a = 0 m/s²

So, the acceleration of the body is 0 m/s², but it has a uniform velocity

Hence, it is possible for an object that, object with zero acceleration have velocity, which is the case case of uniform velocity.

The speed of electrons in a projection television set can be calculated using the given potential difference of 50,000 V.

To determine the speed of an electron, we can equate the two expressions for kinetic energy. The equation K = qV relates the potential difference (V) to the kinetic energy (K) of an electron, where q represents the charge of an electron. The kinetic energy of an electron can also be expressed as K = (1/2)mv^2, where m is the mass of the electron and v is its speed. By setting these two equations equal to each other and solving for v, we can calculate the speed of the electron.

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The provided circuit has a 1 ohm equivalent resistance across its two endpoints, A and B.

If R 3 and R 4 were parallel in R", then the resistance would be 1 ohm.

Calculate R' and R" now:

where R' is one ohm and R" is one ohm

formula: R'+R"=1+1=2 ohm

The other R"' and R"" are likewise calculated in parallel when we do so:

The whole resistance is therefore 1 ohm.

1 ohm is the ultimate response.

Electrical resistance is a force that opposes the passage of current and is hence resistance to electricity. In this sense, it acts as a gauge for the difficulty of current flow. Ohms () are used to measure resistance.

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Answer:

true

Explanation:

Answer: True

Explanation:

The second harmonic frequency of the steel piano wire is approximately 58.7 Hz.

To calculate the second harmonic frequency, we will use the formula for the fundamental frequency of a vibrating string and then multiply it by 2, as the second harmonic is twice the fundamental frequency. The formula for the fundamental frequency (f1) of a vibrating string is:

f1 = (1/2L) * √(T/μ)

where L is the length of the string, T is the tension, and μ is the linear mass density of the string. First, we need to calculate the linear mass density:

μ = mass/length = 2.6 g / 56 cm = 0.026 kg / 0.56 m = 0.0464 kg/m

Now we can plug in the values into the formula:

f1 = (1/2 * 0.56 m) * √(510 N / 0.0464 kg/m) ≈ 29.35 Hz

Since we want the second harmonic frequency (f2), we simply multiply the fundamental frequency by 2:

f2 = 2 * f1 = 2 * 29.35 Hz ≈ 58.7 Hz

Therefore, the second harmonic frequency of the steel piano wire is approximately 58.7 Hz.

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Answer:

ssooeorkgogogoogkrorooror

Explanation:

A battery management systems primary purpose is to protect the cells from being operated in unsafe conditions.

The BMS's main objective is to safeguard the cells from hazardous operating situations. The BMS can also be used to monitor any battery irregularities and report status (such as battery life) to the user and/or powered (host) device. A battery pack, which is an assembly of battery cells electrically organized in a row by column matrix configuration, is under the control of a battery management system (BMS).  

BMS is a piece of technology designed to deliver a targeted range of voltage and current for a period of time against anticipated load scenarios. With the maximum energy density, lithium-ion rechargeable cells are the appropriate option for battery packs in a wide range of consumer goods, from laptops to electric automobiles.

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to find the modulus of elasticity MoE at 23% of moisture content based on the already given modulus of elasticity of 12% moisture content we need to consider a shrinkage behavior of material. the expected MoE comes out to be approximately \(6,836 N/mm².\)

given information:

Modulus of elasticity at 12% moisture content =7,920 N/mm²

resultant shrinkage or final shrinkage percentage FSP = 30%

To calculate the expected MoE at 23% moisture content we have the following equation:

MoE-23% =   \(MoE-12%\) \((1 - FSP (23 - 12) / (100 - 12))\)

MoE-23% = \(7,920 N/mm² × (1 - 0.30 × (23 - 12) / (100 - 12))\)

MoE-23% =\(7,920 N/mm² × (1 - 0.30 × 11 / 88)\)

MoE-23% = \(7,920 N/mm² × (1 - 0.1364)\)

MoE-23% = \(7,920 N/mm² × 0.8636\)

MoE-23% =  \(6,836 N/mm²\)

therefore the expected modulus of elasticity at 23% moisture content comes out to be approx \(6,836 N/mm²\).

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Approximately 1.8 × 1020 electrons leave the battery per minute.

To calculate the number of electrons that leave a 9.0-v battery per minute, we need to use the equation relating voltage, current, and resistance. The equation is given by Ohm's law, which is expressed as I = V/R, where I is the current in amperes, V is the voltage in volts, and R is the resistance in ohms. We can use this equation to find the current flowing through the bulb, which is given by

I = V/R = 9.0 V / 3.0 Ω = 3.0 A

The current represents the flow of electric charge, which is carried by the electrons in the wire. To find the number of electrons that flow past a given point per second, we need to know the charge on each electron and the number of electrons in one coulomb of charge. The charge on one electron is given by e = 1.6 × 10-19 C, where C represents coulombs.

The number of electrons in one coulomb is given by the reciprocal of the electron charge, which is N = 1 C / e = 1 / 1.6 × 10-19 = 6.25 × 1018 electrons. Putting these values together, we can find the number of electrons that flow past a given point per second as follows: n = I / (eN) = 3.0 A / (1.6 × 10-19 C × 6.25 × 1018 electrons) = 3.0 / (1.6 × 6.25) × 1018 ≈ 3.0 × 1018 electrons/second.

To find the number of electrons that leave the battery per minute, we can multiply this value by 60 seconds/min, which gives n = (3.0 × 1018 electrons/second) × (60 seconds/min) = 1.8 × 1020 electrons/minute.

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Answer:

vf = 32ms

Explanation:

v  =  u  +  a t ,

v  =  0  +  8.0  x  4.0  

v  =  32 ,

v  =  32 m /s  

Hope it Helps! :D  

Answer:

Kinetic Energy

Explanation:

Potential Energy is where something is building up energy to move.

Answer:

Kinetic Energy

Explanation:

Answer:

Stars form from nebulae of dust and gases. Depending on its properties, a star may become a red, yellow, white, or blue star. 

Answer:

the amount of force that keeps two surfaces touching, but does not let them come apart or press further together

Explanation:

Hope this helps - Good luck ^w

Normal force is the support force exerted upon an object that is in contact with another stable object.

The regular daily rises and falls in sea level caused by the gravitational attraction of the moon and sun on earth.

What is Gravitational attraction?

Gravitational attraction is the force of attraction between two objects with mass. The strength of the gravitational attraction depends on the masses of the objects and the distance between them. The greater the mass of the objects and the closer they are to each other, the stronger the gravitational attraction between them.

Tides are the regular daily rises and falls in sea level that are caused by the gravitational attraction of the moon and the sun on the Earth. As the Earth rotates, it experiences two high tides and two low tides every day. The gravitational pull of the moon causes a bulge in the ocean on the side of the Earth that faces the moon, resulting in a high tide. On the opposite side of the Earth, there is also a high tide because the gravitational force of the moon pulls the Earth away from the ocean on that side.

In addition to the moon, the sun also contributes to the tidal forces on Earth, although to a lesser extent due to its greater distance. When the sun and the moon are aligned, their tidal forces combine to create especially high "spring tides." When they are at right angles to each other, their tidal forces partially cancel out, resulting in lower "neap tides."

Tides play an important role in coastal ecosystems, navigation, and other human activities that rely on the ocean.

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The bowling ball will likely hit the ground first.

If a bowling ball and a golf ball are dropped from the same height in a vacuum or an environment where air resistance is negligible, they will hit the ground at the same time. This is because in the absence of air resistance, the only force acting on the objects is gravity, and both objects experience the same acceleration due to gravity.

According to the theory of free fall, all objects near the surface of the Earth, regardless of their masses, accelerate at the same rate of approximately 9.8 meters per second squared (m/s²). This means that both the bowling ball and the golf ball would experience the same acceleration, causing them to fall with the same speed and hit the ground simultaneously.

However, in real-world scenarios where air resistance is present, the objects will experience different amounts of air resistance due to their different shapes and sizes. The bowling ball, being larger and heavier, will experience less air resistance relative to its weight compared to the golf ball. As a result, the bowling ball will tend to overcome air resistance more effectively and hit the ground slightly earlier than the golf ball.

So, in summary, if air resistance is negligible or not a factor, both balls will hit the ground simultaneously. If air resistance is significant, the bowling ball will likely hit the ground first.

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My project is in the file attached, lots of thanks to Maxineishere for helping me with the essay. You may need adobe reader for this as the files are PDF files, I hope you are satisfied! :)

DATE ANSWERED: 5/8/2021

Answer: 7.75pc

Explanation:

Given data:

p = 0.129arcseconds.

Solution:

D = 1/p

D = 1/0.129

D = 7.75pc

The Vega is 7.75parsecs from Pluto.

The simple machines that are used in the tool or device include all of the following:

In Science, a simple machine can be defined as a type of machine that is designed and developed with no moving parts, but can be used to perform a specific work.

Additionally, there are six (6) simple machines and these include the following;

Generally speaking, a simple machine allows for the transformation of energy into work.

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Explanation:

\(t = \frac{f \times d}{p} \)

t = ?

f = 1893N

d = 13m

P = 579W

t = { 1893×13}/(579)

t = 42.5secs

The equivalent resistance across the battery is 27 ohms. The total battery current is 0.37 A.

The terms "analog" and "digital" refer to how information is encoded to change the voltages and currents in a circuit.

In this circuit, there is no information going on, and nothing is changing. If you had an analog or digital circuit and you needed some reference voltages for it, the little piece of electronics in this picture could be used in either type.

Answer:

10

Explanation:

Amu denotes for unified atomic mass.

it is mostly used to define the atom's mass and molecules.

we know that

One unit of amu is 1 ÷ 12 of the mass of a nuclide 12C

And 1 u = 1.660 538 921 × 10-27 kg

In the inside we can found that there is 10 nucleons so here the alss of the atoms would be 10 amu  

Answer:

guy above me is right

Explanation:

A substance that prevents free flow of electrical current is known as an electrical insulator. The electrons in the insulator's atoms are securely bonded and immobile.

Protons are in overabundance on an aluminium plate that is positively charged. A positively charged aluminium plate has a deficiency of electrons when viewed from the perspective of electrons. We might characterise each extra proton as being somewhat dissatisfied in terms of people.

The other plate develops an imposed positive charge as a result of the electron's electric field, which pulls on the electrons that are in that plate and repels other electrons.

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Light source will pass through and form a shadow, when I hold the largest cardboard between the light source and the wall. Since, the cardboard is not so thick it will allow rays to pass through it.

Light rays always travel in a straight line. A shadow is formed when the light rays hit an opaque object. Sun is a natural source of light. The rays from the sun fall on objects on earth and forms shadows. Light rays do not interfere with each other if they come cross each other. Light rays travel from the direction of source to the direction of eye. They show property of reflection wherein after colliding a surface they trace their path back.

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Explanation:

Acceleration is the rate of change of velocity with time. When acceleration increases a body moves a faster velocity.

A vehicle at time 100s will have a faster velocity compared to one at t = 20s

Scientists get their evidence through scientific methods such as observation and performing experiments.

This is referred to as a part of a scientific method and it is performed by scientists to test a hypothesis so as to know whether it will be accepted or refuted.

This helps scientists to gather information from the various results gotten and the use of our sense organs such as nose etc to observe the various happenings is also a method in which scientists get their evidence. They also use models to study how certain processes occur so as to get the accurate data.

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