9. The bright-line emission spectrum of an element can best be explained by A. electrons transitioning between discrete energy levels in the atoms of that element B. protons acting as both particles and waves C. electrons being located in the nucleus D. protons being dispersed uniformly throughout the atoms of that element

The best sources of energy are light, photosynthesis, chemicals, cellular respiration, and chemicals. the energy inputs and outputs of photosynthesis and cellular respiration are compared.

The capability to do tasks is how energy is most frequently defined. In other words, energy is a property of everything that can accomplish work. Making or producing change is another name for conducting work in the context of energy. With every act of labor, energy is either changed or transferred.

Energy is a word that denotes a property of matter & non-matter fields; it is not a substance in and of itself. For instance, it is argued that matter has kinetic energy when it moves quickly. Potential energy can take many different forms.

To know more about Energy visit:

https://brainly.com/question/1932868

#SPJ1

Answer:

42,000 lbs

Explanation:

100 kg is 210 lbs.

200 x 210 lbs =

42,000 lbs

The weight of the car is product of its mass and acceleration due to gravity of earth. Hence, the weight of the 200 kg car is 1960 N.

The gravitational force of an object is the force by which attracts other objects into its center of mass. Earth attracts every objects into its center and that is why we are all standing on the ground.

The weight we experience on earth is  due to this gravitational force and it decreases when we move far from earth. The acceleration due to gravity is the acceleration by which an object accelerates downwards due to earth's gravity  (g).

Weight of an object  = mass × g

g for earth = 9.8 m/s²

mass of the car = 200 Kg.

then, weight = 200 kg × 9.8 m/s² = 1960 N.

Therefore, the weight of the car is 1960 N.

Find more on gravitational force:

https://brainly.com/question/24783651

#SPJ6

Answer:

Electrons

Explanation:

Protons and Neutrons are found within the nucleus and while electrons are much smaller and found outside the nucleus

Answer:

c

Explanation:

Answer:

In short, a force applied to an object at rest causes it to accelerate in the direction of the force.

Explanation:

Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e. to change its velocity, at a constant rate.

Answer:

As the force acting upon an object is increased, the acceleration of the object is increased.

Explanation:

The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.

The fill in the gap answer is given below:

   From there, it is pumped to the lungs through two vessels called the pulmonary arteries.

   These arteries are an exception to the rule since they carry oxygenated blood to the lungs.

   Gas exchange occurs in the lungs at the alveoli.

   Blood enters the left atrium of the heart.

Blood must be distributed to all of the body's cells (1). Oxygen first enters the body when inhale (2). Oxygen is carried by red blood cells (3). Deoxygenated blood travels through the vena cava (4) to the right atrium (5) of the heart. It first enters the right ventricle (6), and is pumped to the lungs for gas exchange (7), where oxygen is taken in and carbon dioxide is expelled.     From there, it is pumped to the lungs (8) through two vessels called the pulmonary (9) arteries. 10 Oxygenated blood to the Body(11), 12 Gas exchange occurs in the lungs at the Alveoli 13,    From the lungs, 14. oxygenated blood travels through the 15. pulmonary veins, and enters the 16. left side of the heart. This is also an exception to the rule as these veins carry 17. oxygenated blood to the heart. 18. Oxygenated blood first enters the 19. left atrium, then moves to the 20. left ventricle, Then it is pumped out through the aorta (21) onto the body (22) and distributed to the cells body (23).

Blood is a bodily fluid that circulates through the circulatory system of an organism, carrying oxygen, nutrients, hormones, and waste products to and from the cells. Blood is made up of red and white blood cells, platelets, and plasma. Red blood cells are responsible for carrying oxygen, while white blood cells help the body fight infections and diseases.

Therefore,  Platelets play a role in blood clotting, and plasma is the fluid portion of blood that contains proteins and other substances. Blood plays a vital role in maintaining the health and well-being of an organism.

Learn more about blood  form

https://brainly.com/question/25149738

#SPJ1

See transcribed text below

Directions: Summarize how blood travels throughout the body using the following terms

and the sentence frames below. Each word should be used just once.

capillaries blood  venacava left  oxygen heart  upper

eftatrium  oxygenated  lungs  pulmonary  right atrium  deoxygenated

red blood cells  inhale  pulmonary  right ventricle lungs lower  Gas exchange

ventricle  oxygenated  aorta

1 must be distributed to 2l of the body's cells, Oxygen first

enters the body when | 2 Oxygenis carried by 3,

inthe 4. Deoxygenated blood travels through the inferior and superior

5 Itfirst enters the 6. . and is pumpedto the

T From there, it is pumped to the 8 through two vessels

called the 9. areries. These arteies are an exception to the rule

since they carry 10 bloodtothe

1 2 occurs inthe lungs at the 13,

From the lungs, 14. blood travels through the

15. veins, and enters the 16. side of the heart. This is also

an exception to the rule because these veins carry 17. bloodtothe

18, Oxygenated blood frstenters the 19, then moves to the left

2 Then itis pumped out through the 21 ontothe

2 and 23 body

Answer:

Newton's Third Law

Explanation:

According to Newton's third law of motion, forces always act in equal but opposite pairs. Another way of saying this is for every action, there is an equal but opposite reaction. This means that when you push on a wall, the wall pushes back on you with a force equal in strength to the force you exerted.

We have ,

Using above formula for first case

Now equivalent capacitance(C) of combination is given by

Now for second case , let Q= required charge

a) Charge is given by

b) Potential difference is

99.16 Newtons is the new force of attraction between the particles.

The forces that hold atoms together to create molecules and solids are referred to as chemical bonds. The attraction between the electrons of one atom and the nuclei of another atom as a result of this electric force is what is known as a chemical bond.

\(F = (kq1q2)/r^2\)

\(9,916 = (kq1q2)/r^2\)

\(F = (k*(q1/5)*(q2/5))/(2r)^2\)

\(F = (1/100)((kq1*q2)/(r^2))\)

So, the new force of attraction is:

\(F = (1/100)*9,916 = 99.16\)Newtons (rounded to 4 decimal places)

To know more about Newtons visit:-

https://brainly.com/question/3273157

#SPJ1

Because they act on different objects.

Answer:

revolution of the planets around the Sun.

Explanation:

The revolution of the planets around the Sun is a result of the gravitational force exerted by the Sun. The Sun's gravitational pull attracts the planets, causing them to move in an elliptical orbit around it. This motion is known as the revolution of the planets around the Sun. The other options listed (rotation of the planets on their axes, rotation of the Moon on its axis, and revolution of the Moon around Earth) are also related to motion and gravity, but they are different phenomena.

Answer:

Magnesium and Bromine

Explanation:

I just took the test, and Magnesium has 7 electrons and Bromine has 2 valance electrons making the transfer a lot easier. In the first choice, Krypton already has 8 valance electrons therefore it cannot transfer or accept any more which rules it out as a possible answer. Calcium has 2 valance electrons and Potassium has 1 meaning it couldn't make a full shell of 8 and cannot make a ionic bond. Iodine has 7 electrons as well as Chlorine which wouldn't be the answer because it would have more than 8 valance electrons.

The two elements that will most likely form an ionic bond are Magnesium and Bromine,

Ionic bonds, also known as electrovalent bonds, are a type of connection created in a chemical molecule by the electrostatic attraction of ions with opposing charges.

As we know,

The transfer is simpler since magnesium has 7 electrons while bromine has 2 valence electrons.

Krypton in the first option cannot take or transfer any more electrons since it already has 8 valence electrons, eliminating it as a viable option.

Since potassium only has one valance electron while calcium has two, the latter cannot form an ionic bond or a complete shell of eight electrons.

Iodine and chlorine both have 7 electrons, hence they cannot be the solution since they have more than 8 valence electrons.

Thus, the two elements that will most likely form an ionic bonds are Magnesium and Bromine.

Learn more about the ionic bond here:

https://brainly.com/question/9075398

#SPJ6

The average density of the Sun is high even though its composition is 99.9 % by atoms, 98.5% by mass, Hydrogen and Helium gases because of the immense gravitational forces acting on its massive core.

However, due to its enormous size and mass, the gravitational force at its core is substantial. This force compresses the gases within the Sun, causing them to become denser and hotter. As a result, the pressure and temperature at the core of the Sun are extreme, reaching millions of degrees Kelvin. These conditions facilitate nuclear fusion, a process that converts Hydrogen nuclei into Helium, releasing a tremendous amount of energy in the form of light and heat.

The energy generated by nuclear fusion keeps the Sun in a state of hydrostatic equilibrium, which is a balance between the inward gravitational force and the outward pressure exerted by the gases. This equilibrium maintains the Sun's high average density, despite its predominantly gaseous composition. In summary, the Sun's average density is high due to the immense gravitational forces compressing the Hydrogen and Helium gases in its core and the high pressure and temperature that facilitate nuclear fusion. These factors contribute to the Sun's hydrostatic equilibrium, which sustains its high density.

Learn more about hydrostatic equilibrium here:

https://brainly.com/question/13696206

#SPJ11

Yes, melting lead into a liquid to form pellets is a physical change.

This is because the chemical composition of lead remains the same even after it has been melted and then solidified into pellets. In other words, the molecular structure of lead does not change during the melting process, but only the physical state of the material changes from a solid to a liquid and then back to a solid. This type of change is reversible and can be undone by cooling the lead pellets to their solid state. Therefore, melting lead to form pellets is an example of a physical change rather than a chemical change.

To know more about physical change, here

brainly.com/question/17931044

#SPJ4

--The complete Question is, Is lead melting into liquid to form pellets a physical change? --

The pressure in the glycerin at a depth of 0.2306 meters below the surface where it is 2830 Pa higher than atmospheric pressure.

To determine the depth below the surface of the glycerin at which the pressure is 2830 Pa greater than atmospheric pressure, we can use the concept of pressure in a fluid.

The pressure at a certain depth in a fluid is given by the equation:

P = P₀ + ρgh

Where:

P is the pressure at the depth h,

P₀ is the atmospheric pressure (assumed to be the reference pressure),

ρ is the density of the fluid (glycerin in this case),

g is the acceleration due to gravity (approximately 9.8 m/s²), and

h is the depth below the surface.

We can rearrange the equation to solve for h:

\(h = \frac{P - P_0}{\rho g}\)

Given that the pressure difference is 2830 Pa and the density of glycerine is 1.26×10³ kg/m³, we can substitute the values into the equation:

\(h = \frac{2830\text{ Pa}}{1.26\times 10^3\text{ kg/m}^3 \times 9.8\text{ m/s}^2} = 0.24\text{ m}\)

Calculating the value, we find:

h ≈ 0.2306 meters

Therefore, the depth below the surface of the glycerin at which the pressure is 2830 Pa greater than atmospheric pressure is approximately 0.2306 meters.

To know more about the surface of the glycerin refer here :

https://brainly.com/question/16975617#

#SPJ11

We will have the following:

So, the nergy is 2.3 J.

In a stable ecosystem, the number of predators increases if the number of prey increases.

Predators are the species that are dependent upon prey for their foods. predators actually hunt the prey for their food.

predators are the species that depend upon other living species like deer fish goats etc for example lions depend upon deer, zebras, etc.

while the preys are the species who depend upon the plants for their food so if the number of preys will be higher then the number of the predators will also be higher.

Thus In a stable ecosystem, the number of predators increases if the number of prey increases.

To know more about the Ecosystem follow

https://brainly.com/question/842527

Answer:

Both balls strike the ground at the same time, and both balls strike the ground at the same speed.

Explanation:

novae are more closely related to Type II than to Type I supernovae. The statement "Novae are more closely related to Type II than to Type I supernovae" is: true

Novae are classified as cataclysmic variable stars, which involve a binary star system where a white dwarf and a companion star orbit each other. In a nova, the white dwarf accretes material from the companion star, which triggers a runaway fusion reaction on its surface, resulting in a sudden increase in brightness.

Type I and Type II supernovae, on the other hand, are classified as core-collapse supernovae, which involve the collapse of a massive star's core. Type I supernovae lack hydrogen lines in their spectra, while Type II supernovae have strong hydrogen lines.

To know more about supernovae visit:

https://brainly.com/question/31856824

#SPJ11

Answer:

In MeV: 10.674 × 10^(34) MeV

In TeV: 10.674 × 10^(28) TeV

Explanation:

We are given that;

1.78 × 10^(-36) kg = 1 eV

We are now told that the blue whale has an average mass of 1.90 × 10^(5) kg

Thus, converting this mass of the blue whale to eV, we have;

(1.90 × 10^(5) × 1)/(1.78 × 10^(-36)) = 10.674 × 10^(40) eV

Now, converting to mega electron volts;

From conversions;

1 eV = 10^(-6) MeV

Thus,

10.674 × 10^(40) eV will be;

(10.674 × 10^(40) × 10^(-6))/1 = 10.674 × 10^(34) MeV

Also, converting to Tera electron Volts;

From conversion, we know that;

1 eV = 10^(-12) TeV

Thus;

10.674 × 10^(40) eV will give;

(10.674 × 10^(40) × 10^(-12))/1 = 10.674 × 10^(28) TeV

The radius of curvature (R) of the convex security mirror can be calculated by using the mirror formula is found to be 2.40 m.

We can use the mirror formula, which relates the object distance (p), image distance (q), and focal length (f) of a spherical mirror as follows:

1/f = 1/p + 1/q

For a convex mirror, the focal length is negative, so we can write:

1/f = -1/p + 1/q

We also know that the magnification (M) of an image formed by a spherical mirror is given by:

M = -q/p

where a negative sign indicates that the image is inverted.

Using the given information, we can write:

M = -q/p = 0.26 and p = 3 m

Substituting these values in the magnification equation, we get:

q = M × p = 0.26 × 3 m = 0.78 m

Now, using the mirror formula, we can solve for the focal length as follows:

1/f = -1/p + 1/q = -1/3 m + 1/0.78 m

Simplifying this expression, we get:

1/f = -0.447 + 1.282

1/f = 0.835

Therefore, the focal length of the convex mirror is:

f = 1/0.835 m ≈ 1.20 m

The radius of curvature (R) of the mirror is twice the focal length, so we have:

R = 2f ≈ 2 × 1.20 m ≈ 2.40 m

Therefore, the radius of curvature of the convex security mirror is approximately 2.40 meters.

Learn more about the Radius of curvature here:

https://brainly.com/question/30106463

#SPJ11

Answer:

The answer to this question is given below in this explanation section.

Explanation:

              " the magnitude of the electrical force between two protons"

The electric force between two object is proportional to the inverse square of the object between two objects.The electric force between two electrons is the same as the electric force between two protons when they are placed as the same distance.This implies that the electric force does no depend on the mass    of the particle instead it depend on the new quantity:the electric charge.The unit of electric charge Q is the coulomb.The unit of electric charge q is the coulomb.The electric charge can be negative ,zero or positive.The electric charge on a glass rod rubbed with silk is positive.The electric charge of the electron proton and neutron are magnitude of the charge of the protons  is exactly equal to the magnitude of the charge of the electrons.The number of electrons must be equal to the number of protons.The prices magnitude of the electric force that a charged particle exerts on another is given by coulomb's law.

The magnitude of the electric force that a particular exerts on another particle is directly proportional to the product of their change and inversely proportional the square of the distance between them.

Answer:

I’d say the air outside the hemisphere is more free than from the inside of the hemisphere.

Explanation:

hope this help!

Answer:

Reproductive cloning involves creating an animal that is genetically identical to a donor animal through somatic cell nuclear transfer. In reproductive cloning, the newly created embryo is placed back into the uterine environment where it can implant and develop. Dolly the sheep is perhaps the most well known example. In therapeutic cloning, an embryo is created in a similar way, but the resulting "cloned" cells remain in a dish in the lab; they are not implanted into a female's uterus.

Answer:

Reproductive cloning involves creating an animal that is genetically identical to a donor animal through somatic cell nuclear transfer. In reproductive cloning, the newly created embryo is placed back into the uterine environment where it can implant and develop. Dolly the sheep is perhaps the most well known example. In therapeutic cloning, an embryo is created in a similar way, but the resulting "cloned" cells remain in a dish in the lab; they are not implanted into a female's uterus.

Answer:

the answer is C

Explanation:

Answer: Carbon dioxide  is the primary greenhouse gas emitted through human activities. In 2019,  accounted for about 80 percent of all U.S. greenhouse gas emissions from human activities. Carbon dioxide is naturally present in the atmosphere as part of the Earth's carbon cycle (the natural circulation of carbon among the atmosphere, oceans, soil, plants, and animals. Human activities are altering the carbon cycle–both by adding more  to the atmosphere, and by influencing the ability of natural sinks, like forests and soils, to remove and store  from the atmosphere. While emissions come from a variety of natural sources, human-related emissions are responsible for the increase

Explanation:

The frequency range of electromagnetic waves of X-ray is 3 ×10¹⁶ Hz to  3 ×10¹⁹ Hz. The wavelength range of electromagnetic waves of X-ray is  0.01 nm t0 10 nm.

The electromagnetic spectrum of electromagnetic waves can be described as the range of frequencies of electromagnetic radiation and its wavelengths and photon energies. The electromagnetic spectrum have range from one Hertz to above 10²⁵ Hertz.

The wavelength of electromagnetic radiation lies in between 380 to 760 nm and is detected by the human eye and characterized as visible light.

Electromagnetic waves of each frequency band are known by different names; starting at the low frequency (long wavelength) end of the spectrum these are radio waves, microwaves, infrared (IR), visible light, UV, X-rays, and gamma rays at the high-frequency (short wavelength) end.

Learn more about electromagnetic spectrum, here:

brainly.com/question/15576247

#SPJ1

The magnitude of the electric field in terms of q and the distance r from the common center of the two shells for r is given by;E = kq(r-R1)/(r^2R2).

When two metal shells of different radii, R1 and R2 (R2>R1) have equal and opposite charges of magnitude q, and their common center is at a distance r from the common center of the two shells, the electric field at a point outside both shells (r>R2) is given by the expression;E = kq(r-R1)/(r^2R2)where;q= charge on the metal shells, k = 1/4πε0;ε0 = permittivity of free space, R1 and R2 are the radii of the shells respectively.Magnitude of electric field; E = kq(r-R1)/(r^2R2) Therefore, the magnitude of the electric field in terms of q and the distance r from the common center of the two shells for r is given by;E = kq(r-R1)/(r^2R2)

To learn more about  electric field

https://brainly.com/question/30544719

#SPJ11

If an automobile drives 500 miles at an average speed of 54.9%, it will take 14.6 hours to finish the journey. The total distance that the thing has gone is its average speed.

divided by the entire amount of time it took to go the distance. The equation for average speed is: The difference between instantaneous and average speed.

The measurement of distance between two objects or points can be quantitative or occasionally qualitative. Distance in physics or common language can refer to a physical length or an assumption based on other factors (e.g. "two counties over").

Time taken = distance travelled/ speed

Time taken = 500 miles/ 54.9minutes/hr

Time taken = 804.67 km/54.9minutes/hr

Time taken = 14.6 hours

Learn more about average speed here

https://brainly.com/question/12322912

#SPJ4