what is the temperature of a two-level system of energy separation equivalent to 300 cm−1 when the population of the upper state is one-half that of the lower state?

Answer: (a) No we cannot able to move the electron with strong magnet field.

(b) yes we can able to move the electron with strong electric field

Explanation: Theoretically, both the gravitational and electric fields might speed up a travelling electron, but in most situations, only the electric field will do so significantly. Since the magnetic force is always perpendicular to the velocity, it will not affect the speed of an electron in motion.

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By applying a strong magnetic field, the electron will not travel. By applying an opposite electric field or the same electric field, the electron will move in a different direction, respectively.

The definition of an electric field is the electric force per unit of charge. It is assumed that the field's direction corresponds to the direction in which a positive test charge would experience force. The electric field is directed radially inward toward a negative point charge and radially outward from a positive charge. a circumstance present in the vicinity of a magnet or an electric current, defined by the presence of magnetic poles and a discernible magnetic field at every point in the vicinity.

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The approximate speed of the roller coaster is 32m/s.  

Considering that the earth and the roller coaster are both parts of one system.

We can use the law of conservation of energy,

This law states that in a system, the sum of total energy is always conserved.

So we can say that the energy at the top of roller coaster will be equal to the energy at the bottom of the roller coaster.

At top, whole energy is potential energy and the bottom whole energy is kinetic energy,

So we can write,

PE = KE

Mgh = 1/2Mv²

Where M is mass of roller coaster,

v is the speed of roller coaster,

g is acceleration due to gravity and,

h is the height of the roller coaster,

Putting all the values,

gh = 1/2v²

v² = 2gh

v² = 2×9.8×51

v² = 999.6

v = 31.61 m/s.

The speed of roller coaster at the end is 32 m/s approx.

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When you jump upward in front of a wall, the wall does not slam into you at 67,000 mph because the wall and you are moving at the same speed, before, during, and after your jump.

Taking the Sun as a reference, the speed of the earth is  67,000 mph. This means that everything on the earth is also moving at a speed of  67,000 mph relative to the Sun.

So, the reason you don't slam into the wall is that you and the wall are both moving at the same speed of 67000 mph relative to the Sun.

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Answer:

50%

Explanation:

uranium loses about 12.5% mass in 1 half life

12.5 x 4 = 50

d N₂ + 3H2 → 2NH3 equation shows that mass is conserved in the chemical reaction

According to the rule of conservation of mass, mass is neither generated nor destroyed during a chemical process. For instance, when coal is burnt, the carbon atom in it transforms into carbon dioxide.

According to the law of conservation of mass, a chemical reaction will not cause a change in the mass of a closed system. Mass just moves; it is neither generated nor destroyed.

Understanding and producing different chemical reactions depend heavily on this rule. Researchers might anticipate how much the result would be if they knew the names and amounts of the reactants for each reaction.

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The point A is located at coordinates (2, -5). This means that A is 2 units to the right of the origin and 5 units below the origin. The direction of A is therefore to the right and down.

What is direction?
The four main compass directions are known as the four cardinal directions, or cardinal points. They are north, east, south, and west, and are typically represented by the initials N, E, S, and W, respectively. The directions east, south, and west are spaced 90 degrees apart from the direction north. Northeast, Southeast, Southwest, and Northwest are the ordinal directions, also known as the intercardinal directions (NW). A secondary intercardinal direction is the direction that lies between each set of intercardinal and cardinal directions.

West-northwest, North-northwest, North-northeast, East-northeast, East-southeast, South-southeast, South-southwest, West-southwest

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The pressure exerted by the girl on the ground if she stands on two feet is 18333.33 N/m².

The pressure exerted by the girl on the ground if she stands on two feet is calculated as follows from the formula of pressure.

Pressure is defined as the force per unit area or the ratio of force exerted and the area in which the force is exerted.

Mathematically;

Th unit of pressure is N/m²

The force exerted by the girl is equal to the weight of the girl

Force = 550 N

Area of one shoe = 150 cm²

Area of one shoe in m² =  150 cm² * 1 m²/10000 cm²

Area of one shoe in m² = 0.015 m²

Area of two shoes = 2 * 0.015 m² = 0.03 m²

Pressure = 550/0.03 N/m²

Pressure = 18333.33 N/m²

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Complete question:

A girl weighs 550 N. The girl is wearing shoes with an area of 150cm². What pressure will be exerted by the girl on the ground if she stands on two feet?

when running a line, in a right-triangle, from the 90° angle perpendicular to its opposite side, we will end up with three similar triangles, one Small, one Medium and a containing Large one.  Check the picture below.

[tex]\cfrac{x}{11}~~ = ~~\cfrac{4}{x}\implies x^2=44\implies x=\sqrt{44}\implies x=2\sqrt{11}[/tex]

Answer:

reducing water use, recycling water, install basic water-efficient technologies, and reusing water.

The speed of an item, which is a scalar quantity, is the size of the change in its location over time or the size of the change in its position per unit of time.

Speed is defined as the rate at which a distance travelled or a height reached changes. It has a time component. It is represented by the letters u for the starting speed and v for the ending speed. M/sec is the SI unit used.

Momentum is the result of an object's mass and velocity. It is a vector quantity since it has both a magnitude and a direction.

Because the astronaut and capsule are at rest, their initial momentum is zero.

Pf = Ma*Va + Mc*Vc

Pi = 0

Ma*Va + Mc*Vc = 0

Vc = Ma*Va / Mc

Vc = (128 * 2.56) / 1880

Vc = 0.174 m/s

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The weight of the suspended object is determined as 39.82 N.

The resultant force is described as the total amount of force acting on the object or body along with the direction of the body.

The weight of the suspended object is equal to the resultant force of the tension in the two ropes.

Let the resultant force = W

The value of of the resultant force is calculated as follows;

W² = 25²  +  31²

W² = 1,586

W = √1586

W = 39.82 N

Thus, the weight of the suspended weight will be greater than the tension in each rope.

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The acceleration by the trolley for moving to East side would be 2.4 m/s^2 according to law of equation.

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1. The magnitude of the bicyclist's acceleration is 4.09 m/s²

2. The distance travelled by the bicyclist during the time is 39.6 m

1. How to determine the acceleration

We can obtain the acceleration of the bicyclist as illustrated below:

a = (v – u) / t

a = (18 – 0) / 4.40

a = 18 / 4.40

a = 4.09 m/s²

Thus, the acceleration of the bicyclist is 4.09 m/s²

2. How to determine the distance travelled

The distance travelled by the bicyclist can be obtained as       follow:        

v² = u² + 2as

18² = 0² + (2 × 4.09 × s)

324 = 0 + 8.18s

324 = 8.18s

Divide both side by 8.18

s = 324 / 8.18

s = 39.6 m

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Answer:

The one that conducts the least amount of electricity is a piece of wood.

Explanation:

We are given four options of which three are metals and one is not, and we have to decide which one would conduct the least amount of electricity or, in other words, which one is the better insulator.

Metals, because of their molecular properties, are the best electricity and heat solid conductors. This means they do not resist  too to the flow of current. Therefore, they conduct high amounts of electricity.

Materials such as wood, plastic, or rubber are known as insulators because they have a higher resistance to the flow of electric current. In other words, they conduct very small amounts of electricity.

Hence, of these options, the one that conducts the least amount of electricity is a piece of wood.

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The resulting energy balance is q= -9623kj

What is resulting energy ?

resulting energy sorted in objects , molecules and atom , energy take many different forms .

It can be converted one into another .

Solution -

The vessel is 10m^3 and initially contains 100 kg of stream. so we can get

V= 0.1 m^3/kg

Between specific value and saturated liquid and saturated vapour at p= 2

So q = 0.112

Is rigid so the final mixture which has a mass of 110kg

Q= 0.149

Start with the independent energy balance it state that

- this is not a steady state process.

-please visit so no expension work.

-no mention of moving parts.

Thus the final result energy balance is - q= -9623 kj

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The force preventing sliding against one another of solid surfaces, fluid layers, and material components is known as friction. There are various kinds of friction: Two solid surfaces in touch are opposed to one another's relative lateral motion by dry friction.

"V = √2gH*{mb/(mM+mM)}"

Given

First block's mass is mB.

Second block's mass is mM.

H = Height

The mass's speed right before impact is m.

V = √2gH

Since there is no external force acting on the masses, the linear momentum will remain constant.

Initially linear momentum equals ultimately linear momentum

Pi = mB V

Let's assume that the system's final speed is v.

Pf = (mM + mB)

V = (mM + mB)

V = √2gH*{mb/(mM+mM)}

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Answer: 58.8235 km/h

speed = distance/time

the distance is 10 km

the time is 10 minutes

the unit is not correct, so we first change minute to hour

so 10/60 is 0.166667, rounded to 0.17.

10 km/ 0.17 hours =

Answer:

specific heat capacity = 5 J/kg °C

Explanation:

To calculate the specific heat capacity of a substance, we can use the following formula:

[tex]\boxed{c= \frac{Q}{m \Delta T}}[/tex],

where:

• c = specific heat capacity

• Q = heat energy

• m = mass of substance

• ΔT = change in temperature

We know from the question that Q = 5200J, m = 2kg, and ΔT = 47 - 42 = 5°C.

Using this information as well as the formula above, we can calculate the specific heat capacity of the substance:

c = [tex]\frac{5200\ \mathrm{J}}{2\ \mathrm{kg} \times 5^{\circ}\mathrm{C}}[/tex]

  = 5 J/kg °C

Therefore the specific heat capacity of the substance is 5 J/kg °C.

Answer: 520 J

Explanation:

The acceleration that is produced by the 2 Kg force is 12 m/s^2.

We know that from the Newton first law, it is the magnitude of the force that is imparted to a body that produces the given acceleration. It is now safe to say that the force that is exerted on a body is directly proportional to the acceleration of the body. This is the fall out that we can take from the Newton law as stated above.

In this case, we have seen that the Two friction less blocks, having masses of 8.0 kg and 2.0 kg, rest on a horizontal surface.

Now;

F = ma

F  = force

m = mass

a = acceleration

F = 8.0 kg *  3.0 m/s2

F = 24 N

We are told that the same force was applied to the 2 Kg mass

a = F/m

a = 24 N/2 Kg

a = 12 m/s^2

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The formula for the covalent compound dichlorine Heptoxite is CL2O6.

Name the first element first then name the second element using the element name stem and the ide suffix. If there are multiple atoms of the first element use the numeric prefix. Always use a numeric prefix for the atomic number of the second element. Dichloroheptoxide is a compound of a clear oily liquid. It is a strong oxidizing agent.

The hardness of a diamond can be read from its crystal structure. Each carbon atom is bound to four other carbon atoms by covalent bonds in a regular tetrahedral structure. Each of these bonded carbon atoms is then further bonded to three other carbon atoms. In the semiconductor industry, chlorine trifluoride is used to clean chemical vapor deposition chambers. Advantageously the semiconductor material can be removed from the chamber walls without the need to dismantle the chamber.

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In the context of momentum, leftward momentum should equal rightward momentum. This is chapter 1.2. That ought to be 1.8 kg into two meters per second. Finally, this we equals 1.8 when two is divided by 1.2, which is 3.0 meters per second.

There are four different challenges in the example given. The first one refers to the initial ball's mass. This is assumed assuming that each person is equivalent to 1.5 telegrams and the second pool ball's mass. M2 is that This also equates to an initial speed of 2.3 kg.

The first pool ball is moving at 25 meters per second, whereas the second pool ball was initially at rest. The first ball ultimately comes to rest after colliding with the second pool ball, becoming zero, and we must determine the second ball's final speed. To do this, we will apply the principle of conservation of linear momentum, which states that the linear momentum of both balls remains constant.

The balls before to impact indicate M 1. We have a total of two from one plus M. That corresponds to the ultimate momentum and one we F plus M. This is 1.5 kg in 2 25 m per second plus zero, and we need to plug in all the known variables. For the first ball after coalition because it comes to rest Plus 2.3 kg Into VF two, it will be zero for the second ball is equal to here.

Lasting Speed of Second Pool Ball. Therefore, it works out to be 2.3 kg into VF 2. And canceling this kilogram here, it is equivalent to 37.5 kilogram meters per second.

The answer to the first problem supplied to him now in the second problem, problem number two, mass of the bullet Small, is determined to be equivalent to 16.3 meters per second for the second pool ball. The bullet's speed is five kilograms per second, and the block in which it is implanted has a mass of 0.005 kilograms.

The bullet designated as Small B has an initial speed of 500 m/s and an overall speed of both. The block and bullet that are absent. We need to locate it.

Since the blocks were released earlier and the spring was also handled, their initial momentum was zero. Eventually, they began to move in the other direction. hence where momentum is concerned, leftward momentum should equal rightward momentum. This is chapter 1.2. That ought to be 1.8 kg into two meters per second. Finally, this we equals 1.8 till two divided by 1.2 results in a speed of 3.0 meters per second.

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Rock, metal, ice, and gas are distributed in the solar system in an orderly manner.

Numerous tiny things in the Solar System are orbiting the Sun, including an unknown number of dwarf planets. Natural satellites, also known as "moons" after the Moon of Earth, orbit the six major planets, the six largest dwarf planets, and many of the smaller worlds. Jupiter's moon Callisto is almost as big as Mercury, the smallest terrestrial planet, and two natural satellites, Saturn's moon Titan and Jupiter's moon Ganymede, are both larger but not more massive than Mercury. Solar System is around the earth.

Planetary rings made of ice, dust, and moonlets surround each of the large planets as well as a few minor worlds. Objects made of rock, metal, and ice can be found in the asteroid belt, Solar System is located between the orbits of Mars and Jupiter.

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       Acceleration: the rate at which the speed and direction of a moving object vary over time.

After that, we'll describe the necessary kind of force. Complete response: Foot muscles are used to kick a football. Muscular force is hence the type of force used.

It is a multi-joint movement that requires the synchronization of several stabilizing and neutralizing muscles, mainly those in the hip and leg. Power and accuracy must be combined for a successful football kick, and depending on the technique, it may be either forceful or accurate.

Acceleration. The soccer ball would be kicked in this scenario, and the ball would move as a result of the motion. Kicking the soccer ball causes it to accelerate. When kicking a soccer ball, the average acceleration is roughly 8 meters per second.

Therefore, the imbalanced force is what causes the football to move, and it also affects the football when we kick it. As a result, option (B) is true since kicking a football is an example of unbalanced force.

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The life of Alfred Nobel in the chronological order is given below.

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When participating in a fitness evaluation, it's important to familiarize yourself with the events included in the evaluation. This is a true statement.

Fitness evaluation is a type of test that is being carried out to assess the physical fitness of an individual in various areas such as:

The events that can be used to evaluate fitness of an individual include the following:

To attain a maximum result, the individual that would be involved in the evaluation exercise should get acquainted with the test for a maximum positive outcome.

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Answer:

Oxygen or Hydrogen?

Explanation:

To make amino acids, fermentation tanks are filled with molasses and sugar ingredients such as sugar cane, corn and cassava. Ideal conditions are achieved for stirring, oxygen supply, temperature and pH levels. The desired amino acids are then purified from this fermented broth.

"An amino acid is an organic molecule that is made up of a basic amino group (−NH2), an acidic carboxyl group (−COOH), and an organic R group (or side chain) that is unique to each amino acid."

Hope this helps

Answer:

B) the dramatic background picture that beautifies the graph

Explanation:

Chart junk is extra features that do not contribute to the data presented.

The mass of the ruler is 5.75 grams

It is given that

length of wooden ruler = 1 m

mass of ruler = 11.5 gram

mass of pivot = 50 gram

1 m = 100 cm

T = T X F

Let M grams be the ruler's mass. The ruler's centre of mass is located there.

As a result, the ruler's centre of mass is 100 cm distant from the hin-ge.

The ruler's equilibrium position is agiven.

adjusting the tor-ques at the hin-ge caused by the 50-gram mass dangling from the ruler and the rod's mass:

50*11.5 = M*100

M = 5.75 grams.

Hence, the mass of the ruler is 5.75 grams

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