a current of 88.4 ma exists in a metal wire. how many electrons flow past a given crosssection of the wire in 9.2 min ? the fundamental charge is 1.602 × 10−19 c.

Answer:

As velocity is uniform then acceleration will be zero.

Explanation:

Answer:

imma try nd help cuz i havent seen anybody answer so

1.sara

2.same for both

3.tom

Explanation:

Answer:time taken is 6 seconds

Explanation:

Answer: 2.45 seconds

Explanation: Acceleration a = -5, distance s = 15, time  = ?.

Final  velocity = v =  0.

We need to use the equations of motion under constant acceleration.

v^2 = u^2 + 2as       where u is the initial velocity

0 = u^2 + 2*-5*15

u^2 = 150

so u = √150

Now we use v = u + at:

0 = √150 - 5t

t = √150/5

t = 2.45 seconds.

Answer:

B

Explanation:

Answer:

B

Explanation:

Here's the Answer :

=》A) It will move towards the weaker force.

because, the stronger force will overcome the weaker one and hence make the object move towards the other side.

Answer:

See below

Explanation:

Power = amps * volts  = .27 * 12 = 3.24 watts

V= IR

R = V/I = 12/.27 = 44.44 ohms

The statement "the force you exert on Earth is insignificant compared to the force Earth exerts on you" is false. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. This means that the force you exert on Earth and the force Earth exerts on you are equal in magnitude but opposite in direction.

When you stand on the surface of the Earth, you exert a force downward due to your weight. At the same time, the Earth exerts an equal and opposite force upward on you, which we perceive as our weight. This force is the gravitational force between you and the Earth. The magnitudes of the forces are equal because they are an action-reaction pair. The force you exert on Earth and the force Earth exerts on you have the same magnitude but act in opposite directions. Thus, neither force can be considered insignificant compared to the other .It's important to note that while the magnitudes of the forces are equal, the effect of the forces depends on the masses of the objects involved. The Earth's mass is much larger than an individual's mass, so the acceleration of the Earth due to the force is negligible. However, the force you exert on Earth still exists and is not considered insignificant from a physics perspective.

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The final image formed by the two-lens system are  real, and it is inverted as compared to the original object.So the correct option is A.

The first lens forms a real image of the object, which is then used as the object for the second lens. The second lens forms a real image of this image, which is the final image. The final image is inverted because the image formed by the first lens is inverted, and the image formed by the second lens is also inverted.A simple lens system consists of the use of only one lens as opposed to the compound lens system where multiple lenses can be used with a single common axis. The simplest of these compound lens systems are two thin lenses kept in contact with each other.Therefore ,the correct option is A.

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Answer:

The anwser is C, Garreth and Elisa ran together, Luigi and Jasmine went the same distance, and Logan and Jasmine have the same displacement in the opposite direction.

Explanation:

i just took the test and got 100%

Answer:

C or Garreth and Elisa ran together, Luigi and Jasmine went the same distance, and Logan and Jasmine have the same displacement in the opposite direction.

Explanation:

When very dense material is heated, it produces a continuous spectrum. A continuous spectrum is an electromagnetic radiation that displays a continuous range of wavelengths or colors.

The spectrum has no gaps or breaks and is seen as a smooth, unbroken band of colors that blend into each other.A continuous spectrum is created by solids, liquids, and dense gases when heated. The molecules in these materials begin to move around more quickly when they absorb thermal energy.

As a result of this motion, the electrons in the atoms within the material are excited to higher energy levels.This means that the electrons move from lower energy levels, which are closer to the atomic nucleus, to higher energy levels, which are further away from the nucleus. When the electrons transition back to their lower energy states, they release energy in the form of electromagnetic radiation.

The radiation that is released includes a continuous range of wavelengths, which produce a continuous spectrum.Continuous spectra are important in astronomy because they help scientists learn about the temperatures of the objects producing the radiation. By analyzing the spectrum, they can determine the temperature of the object.

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The gravitational force between the asteroids is 2.7 × 10^-10 N.

Newton's universal law of gravitation states that the force of attraction between any two bodies is inversely proportional to the square of the distance between them and directly proportional to the product of their masses.

Given that:

Two asteroids with masses 3.45 x 10^3 kg and 6.06 x 10^4 kg are separated by a distance of 7,200 m.

Hence, the gravitational force between the asteroids:

F = GmM/r²

= ( 6.67 x 10^-11 × 3.45 x 10^3 × 6.06 x 10^4)/( 7,200)² N

= 2.7 × 10^-10 N.

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Answer:

B 2.69 x 10-10 N

Explanation:

test right yes yes

The mechanical advantage that us provided due to lifting the rock is 4.

The term mechanical advantage has to do with the degree of ease that is introduced by the use of simple machines. We know that the entire purpose of a machine is to make work easier.

We also know that the mechanical advantage is the ratio of the load to the effort.

MA = Load/Effort

Load = 600 pounds

Effort = 150 pounds

MA = 600 pounds / 150 pounds

= 4

The lever offer Jeff a mechanical advantage of 4 as he lifts the rock.

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Answer:

acceleration = (change of velocity) / (time)

a = 12/ 4 = 3 m/s2

Answer:

3.2075*10^16

Explanation:

Q=P/V just search up a converter and youll get 30V and so you do 15/30 which is a half and a single coulomb is 6.415*10^16 so you half it. I belive this is correct if you dont belive me wait for someone else smarter to answer and compare.

The wavelength of a 650.00 Hz sound in air at room temperature and pressure, where the velocity of sound is 344 m/s, is approximately 0.529 m.

Sound waves travel through a medium by creating compressions and rarefactions. The wavelength of a sound wave is the distance between two consecutive points that are in phase, such as two compressions or two rarefactions. To calculate the wavelength, we can use the formula: wavelength = velocity of sound / frequency.

In this case, the frequency of the sound is 650.00 Hz, and the velocity of sound in air at room temperature and pressure is 344 m/s. Plugging these values into the formula, we get: wavelength = 344 m/s / 650.00 Hz = 0.529 m.

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The coordination complex [V(H2O)6]3+ can be identified as paramagnetic. Paramagnetic substances are weakly attracted to a magnetic field and exhibit magnetic properties. Therefore, [V(H2O)6]3+ is paramagnetic.

Paramagnetic substances are attracted to a magnetic field due to the presence of unpaired electrons, whereas diamagnetic substances are not affected by a magnetic field as all the electrons are paired. To determine the magnetic nature of [V(H2O)6]3+, we need to examine the electron configuration of the central vanadium (V) ion.

Vanadium (V) has an atomic number of 23, and its electronic configuration in the ground state is [Ar] 3d3 4s2. When vanadium forms coordination complexes, it often utilizes its d-orbitals for bonding. In [V(H2O)6]3+, the vanadium ion is in a +3 oxidation state, which means it has lost three electrons from its neutral state. Therefore, we remove the electrons from the 4s and 3d subshells to obtain the electron configuration of [V(H2O)6]3+ as [Ar] 3d2.

The 3d2 configuration indicates that two of the five 3d orbitals of vanadium are occupied by electrons, leaving three unpaired electrons. Since [V(H2O)6]3+ has unpaired electrons, it is paramagnetic.

Identify each of the following coordination complexes as either diamagnetic or paramagnetic

[ZnCl4^2-]

[Pd(NH3)2CL2]

[V(H2O)6]3+

Ni(en)3]2+

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An object accelerates to a velocity of 230 m/s over a time of 2. 5 s. The acceleration it experienced was 42 m/s2. Its initial velocity will be 125 m/s  

final velocity = 230 m/s

time = 2.5 second

acceleration = 42 \(m/s^{2}\)

initial velocity = ?

acceleration = final velocity - initial velocity / time

42 = (230 - u) / 2.5

u = 125 m/s

Its initial velocity will be 125 m/s

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A chemist needs to perform both a scan across all wavelengths and a scan at a specific wavelength to obtain more information about the sample being analyzed. The scan across all wavelengths, also known as a spectrum, provides a complete picture of all the wavelengths of light that the sample is absorbing or transmitting.

This information can be used to determine the sample's identity, as each molecule absorbs and transmits light at different wavelengths. A scan at a specific wavelength, on the other hand, can be used to measure the amount of light absorbed or transmitted at that particular wavelength. This information can be used to determine the concentration of the sample.

For example, if a chemist is trying to determine the concentration of a particular compound in a sample, they would perform a scan at the wavelength where that compound absorbs light. By measuring the amount of light absorbed, they can determine the concentration of the compound in the sample.

In conclusion, performing both a scan across all wavelengths and a scan at a specific wavelength is necessary to get a full understanding of the sample being analyzed and to obtain more accurate results.

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Answer:

Principal focus of concave lens -

★ The point at which rays parallel to principal axis coming from infinity appear to converge after being refracted from concave lens is called the principal focus of concave lens.

________________________

• Additional information -

★ Principal focus - A number of rays parallel to the principal axis after reflection from a concave mirror meet at a point on the principal axis or appear to come from a point after reflection from a convex mirror on the principal axis. This is called principal focus.

The fact that all jobs in modern society are connected to other jobs is called division of labor.

We know that work is structured in such a way that jobs are connected. The jobs are split into smaller components and each person only does a small fragment of the that work that is to be done in a give case.

The fact that all jobs in modern society are connected to other jobs is called division of labor.

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Answer:

please find  attached pdf

Explanation:

Aansi has to increase the temperature for sound wave to be carried more quickly through a metal medium.

The temperature is the degree of hotness or coldness of the object.

When the temperature of any medium is increased, it becomes less dense. The wave travels faster in the rarer medium than the denser medium. So, in less denser medium, wave travel more faster.

Thus, Aansi has to increase the temperature for sound wave to be carried more quickly through a metal medium.

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The electrons move at a speed of roughly 6.02 x 106 meters per second.

Potential difference is measured between two points on either side of a component because it represents the energy transferred between two points in a circuit. The potential difference across a component is how we define this.

The following equation can be used to determine a particle's kinetic energy:

KE = 1/2 mv²

The negative and positive plates have a potential difference of 14100 volts.

The electron's electric potential energy is:

PE = qV

the charge of an electron (-1.6 x 10⁻¹⁹ C) and V is the potential difference.

PE = (-1.6 x 10⁻¹⁹ C) x (14100 V) = -2.256 x 10⁻¹⁵ J

we can equate the two:

KE = PE

1/2 mv² = -2.256 x 10⁻¹⁵ J

Solving for v, we get:

v = sqrt(-2(2.256 x 10⁻¹⁵ J)/(m))

An electron weighs around one kilogram 9.11 x 10⁻³¹ kg

By changing the value, we obtain:

v = sqrt(-2(2.256 x 10⁻¹⁵ J)/(9.11 x 10⁻³¹ kg))

v ≈ 6.02 x 10⁶ m/s.

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The approximate temperature of the star as determined is D) 5500 K.

The Wien's displacement law relates the maximum wavelength of a body to its absolute temperature. Wien's displacement law states that:

λ = \(\frac{b}{T}\)

where λ is the maximum wavelength of the body, b is the constant of proportionality and T is the absolute temperature.

Thus from the given question, λ = 525 nm (525 x \(10^{-9}\)), and b = 2.9 x \(10^{-3}\) mK.

So that,

525 x \(10^{-9}\) = \(\frac{2.9*10^{-3} }{T}\)

Make T the subject of the formula to have;

T = \(\frac{2.9*10^{-3} }{525*10^{-9} }\)

  = 5523.81

T = 5523.81 K

T ≅ 5500.00 K

The approximate temperature of the star in Kelvin is 5500 K.

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Answer: A.

current (thumb) to magnetic field (fingers)

Answer:

A. current (thumb) to magnetic field (fingers)

Explanation:

According to the Right-Hand Thumb rule, if we are holding a current- carrying straight conductor in our right hand such that the thumb points toward the direction of current, then the fingers will wrap around the conductor in the direction of the field lines of the magnetic field.

Hope it helps.

If you have any query, feel free to ask.

Answer:

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Explanation:

ga4tgaew4gtaegae4gaegae5tatgaeata54aetgaetg

Answer: D. thousands to millions of years

Explanation: Stages within a rock's cycle cannot happen quickly. The formation and deterioration can take thousands to millions of years to occur.

I hope this helps!

Good luck <3

The velocity of the car travelling at 15 m/s for 10 second speeding up with constant acceleration of 2m/s^2 for 15 second is 45 m/s.

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