what about an atom can we learn by studying the bohr model?

Answer:

12 metre

Explanation:

Wavelength = Velocity / Frequency

Wavelength = 300m/s / 25 Hz

Wavelength = 12 metre

Yes, the electron can be further away than 1 angstrom from the nucleus in a hydrogen atom. In quantum mechanics, the electron's position is described by a probability distribution, allowing for occasional excursions beyond the average radius.

The radius of 1 angstrom represents an estimate of the average distance between the electron and the nucleus in the ground state of a hydrogen atom. However, in quantum mechanics, the electron's position is described by a probability distribution rather than a fixed orbit.

This means that there is a non-zero probability of finding the electron at distances greater than 1 angstrom from the nucleus, although the probability decreases as the distance increases. Therefore, while the average distance may be 1 angstrom, the electron can occasionally be found further away from the nucleus.

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The exact potential drop across resistor 3 is 8.2 volts.

To find the potential drop across resistor 3, we can use the concept of Kirchhoff's voltage law, which states that the total potential difference in a series circuit is equal to the sum of the potential differences across each component.

Given that the potential drops across resistors 1 and 2 are 4.9 volts and 2.9 volts respectively, and the power supply is 16 volts, we can calculate the potential drop across resistor 3.

First, we need to find the sum of the potential drops across resistors 1 and 2: 4.9 volts + 2.9 volts = 7.8 volts.

Next, we can subtract the sum of the potential drops across resistors 1 and 2 from the total potential difference of the power supply: 16 volts - 7.8 volts = 8.2 volts.

Therefore, the exact potential drop across resistor 3 is 8.2 volts.

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A spherical drop of water carrying a charge of 41pC has a potential of 570 V at its surface (with V=0 at infinity) (a) The radius of the drop is approximately 5.88 micrometers (μm).

(b) The potential at the surface of the new drop formed by combining two drops of the same charge and radius is approximately 1140 V.

(a) To find the radius of the drop, we can use the formula for the potential of a charged sphere, which is given by V = (k * Q) / r, where V is the potential, k is the electrostatic constant, Q is the charge, and r is the radius of the sphere. Rearranging the formula to solve for the radius, we have r = (k * Q) / V. Plugging in the given values of Q = 41 pC (pico coulombs) and V = 570 V, and using the value of k = 8.99 × 10^9 Nm^2/C^2, we can calculate the radius to be approximately 5.88 μm.

(b) When two drops combine to form a single spherical drop, the total charge remains the same. Therefore, the potential at the surface of the new drop can be calculated using the same formula as before, but with the combined charge. Since each drop has the same charge and radius, the combined charge will be 2 times the original charge. Plugging in Q = 82 pC (2 * 41 pC) and using the given value of V = 570 V, we can calculate the potential at the surface of the new drop to be approximately 1140 V.

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Answer:

Respect the client’s decision

Explanation:

just took the test

Answer: Respect the client's decision

Explanation: Either way the professional would know not to do anything rash and it is the client's decision whether or not they want to move forward, it would have obviously been a touchy subject if they were that reluctant.

Answer:

Using its legs

Explanation:

Over an estimated billion years mammals and other species have developed this "revolutionary engine" lol. Legs allow for faster, more efficient and overall better transportation means, its not reliant on any other source just on power which comes from foods which is broken down in the Silvia, soon to become the stomach. If you want to dig deeper into this topic search of video's on how the mitochondria is the factory, or the powerhouse of the cell, also I recommend  Kurzgesagt on how the food is processed and turn into energy, and how that energy can support life.

Answer:

With his or her legs.

Explanation:

The he-duck or she-duck may cross a road in a number of ways, however the most common is to simply walk. Ducks often walk across roads to mock comedian chickens in satire. They put one webbed foot in front of the other, and shake their butts, or, scientifically, duckicus butticus. [DUC-I-CUS BUT-I-CUS]

An amazing phenomenon.

The amount of metabolic energy expended by the bird is 39.2 J.

Energy is the ability to perform work in physics. It might exist in several different forms, such as potential, kinetic, thermal, electrical, chemical, radioactive, etc. Additionally, there is heat and work, which is energy being transferred from one body to another. Energy is always assigned based on its type once it has been transmitted. Thus, heat transmitted may appear as thermal energy while labor performed may result in mechanical energy. Motion is a property of all energy types. For instance, if a body is moving, it possesses kinetic energy. Even while at rest, a tensioned object like a spring or bow has the ability to move; this is due of its design, which includes potential energy.

E = mgh = (0.20)*(9.8)*(20) = 39.2 J

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To determine the wavelength, we need to use the formula: wavelength = speed of sound / frequency. However, the speed of sound depends on various factors such as temperature, humidity, and altitude.

Therefore, without knowing the specific conditions, it is not possible to provide an accurate value for the wavelength. In general, the speed of sound at room temperature (~20°C) is around 343 meters per second. Using this value, we can calculate the wavelength by dividing the speed of sound by the frequency. Thus, for a frequency of 1200 Hz, the approximate wavelength would be 343 m/s / 1200 Hz, which is approximately 0.29 meters or 29 centimeters.

It's important to note that the actual wavelength may differ based on the specific conditions in the room and the speed of sound at that temperature.

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Answer:

The Doppler red-shift of light observed from distant stars and galaxies gives evidence that the universe is expanding (moving away from a central point). This allows for Big Bang Theory, because after a “bang” occurs all of the matter moves away from the point of origin.

Answer:

False.

Explanation:

Mass is the amount of matter in a given object. Weight is the force acting on an object due to gravity.

Answer:

False

Explanation:

Weight is the act of pulling an object towards the earth surface so weight is a force to amount

Answer:

heat and high pressure

Explanation:

It is about 0.0003 AU, or about 10 times the distance from the Earth to the Sun. Sagittarius is a constellation in the southern celestial hemisphere. It is one of the 48 constellations listed by the ancient Greek astronomer Ptolemy and is named after the Latin word for "archer."

Sagittarius A* (pronounced "Sagittarius A-star"), also known as the supermassive black hole at the center of the Milky Way galaxy, is believed to have a diameter of about 44 million kilometers, or about 1.4 times the size of the orbit of Pluto. This is equivalent to about 0.000015 lightyears or about 0.0003 astronomical units (AU).

Diameter of Sagittarius A* = 44 million kilometers

1 lightyear = 9.4605284 × 10^15 meters

Diameter of Sagittarius A* = 44 million kilometers * 1000 meters/kilometer

= 44,000,000 meters

Diameter of Sagittarius A* = 44,000,000 meters / 9.4605284 × 10^15 meters/lightyear

= 0.000015 lightyears

1 AU = 1.495978707 × 10^11 meters

Diameter of Sagittarius A* = 44,000,000 meters / 1.495978707 × 10^11 meters/AU

= 0.0003 AU

So the diameter of Sagittarius A* is about 0.0003 AU, or about 10 times the distance from the Earth to the Sun.

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Pollination is the transfer of pollen for plant fertilization

The correct responses are as follows;

The description of the changes that take place is included in this response

6 (i) The circuit arrangement is a parallel circuit arrangement

(ii) The advantages are;

(iii)  Lamp C glows the brightest

(iv) The total resistance is 4 Ω

The reason roe the above responses are as follows:

During the course of pollination, the pollen, through movement, finds it way to the germ-cell in the female ovary, where it fuses with the female egg (gamete) located inside the ovule

The resulting fertilization produces the zygote, which forms an embryo inside the ovule by dividing several times

A seed is formed from the ovule when it develops a tough coat, and by rapid growth a fruit is formed as the ovary matures

5 (i) The kind of combination, where all the wires that enters the bulb are joined on one side of the bulbs, and all the wires that comes from the bulbs are joined on the other end of the bulb, before joining the circuit is a parallel connection

(ii) The advantages of bulbs connected in parallel are;

(iii) The bulb that glows brightest is given by the bulb that consumes the most energy per unit time, and therefore, the bulb that has the most power

Power consumed by each bulb is given as follows;

Bulb A, \(P_A\) = 3 A × 60 V = 180 W

Bulb B, \(P_B\) = 4 A × 60 V = 240 W

Bulb C, \(P_C\) = 5 A × 60 V = 300 W

Bulb D, \(P_D\) = 3 A × 60 V = 240 W

The highest power used by a bulb is 300 W, by bulb C

Therefore;

Bulb C is the brightest bulb

(iv) The total resistance of the circuit is given as follows;

\(Total \ resistance =\dfrac{Circuit \ voltage}{Total \ current}\)

Total current, \(I_{tot}\) = 3 A + 4 A + 5 A + 3 A = 15 A

Circuit voltage, V = 60 V (Given)

Therefore, we have;

\(Total \ resistance =\dfrac{60 \, V}{15 \, A} = 4 \, \Omega\)

The total resistance is 4 Ω

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Answer:

The correct option is;

B) 2.2 hr

Explanation:

The location of the rock in the orbit of the asteroid = Close to the surface of the asteroid

The required equation is given as follows;

\(\dfrac{G \times M \times m}{r^2} = \dfrac{m \times v^2}{r}\)

\(\therefore v^2 = \dfrac{G \times M}{r}\)

Where;

v = The orbital velocity

G = The universal gravitational constant = 6.67430 × 10⁻¹¹ N·m²/kg²

r = The radius of the planet = 16 km = 16,000 m

M = The mass of the planet = 4 × 10¹⁶ kg

∴ v² = 6.67430 × 10⁻¹¹ × 4 × 10¹⁶/16,000 = 166.8575

v = √(166.8575) = 12.92 m/s

The orbital velocity = v = 12.92 m/s

The time it takes for the rock to make one orbit round the asteroid is given as follows

The length of the orbit = The circumference of the asteroid = 2 × π × r  

The length of the orbit =  2 × π × 16,000 ≈ 100530.965 m

The time it takes for the rock to make one orbit round the asteroid = The length of the orbit/(The speed of the asteroid)

The time it takes for the rock to make one orbit round the asteroid = 100530.965/(12.92) ≈ 7781.034 seconds or 2.2 hours (by approximation by one decimal place)

The time it takes for the rock to make one orbit round the asteroid ≈ 2.2 hours.

In mathematics, the Gauss-Jordan method is a procedure used to solve a linear system of equations. The method includes two techniques that are Gauss elimination and Gauss-Jordan elimination.

This technique is employed by the calculators to solve a system of linear equations. This technique uses matrices and reduces them to their Row Echelon Form. The calculator then transforms the matrix to Reduced Row Echelon Form by elementary row operations. The method can help to solve equations with any number of variables.

In order to solve the system of equations, the following steps should be followed:

Step 1: Write the system of equations in matrix form and represent the unknown variables as variables X1, X2, X3, …Xn.

Step 2: Apply elementary row operations to convert the matrix into row-echelon form.

Step 3: Now use the method to convert the matrix into reduced row-echelon form.Step 4: Find the solutions to the system of equations.The calculator uses the Gauss-Jordan method to solve the system of equations. This method uses matrices to represent the coefficients and constants of the equations. The calculator reduces these matrices into their row-echelon form by applying elementary row operations.The Gauss-Jordan method is then used to transform the row-echelon matrix into its reduced row-echelon form. The solution to the system of equations is then determined by using the values of the unknown variables in the reduced row-echelon matrix. The method is beneficial to solve equations with any number of variables.

In conclusion, the Gauss-Jordan method is used to solve a system of linear equations. This method reduces matrices into their row-echelon form and then transforms them into their reduced row-echelon form. The method helps to solve equations with any number of variables. Calculators employ this method to solve linear systems of equations by using matrices and applying elementary row operations to obtain the solutions.

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The initial center mass of the two bricks is 2 kg.

The center mass of the two bricks is determined by combining the momentum of the two bricks, with one as the reference point.

The initial center mass of the two bricks is calculated as follows;

\(M_{cm} = \frac{M_0 + M_1}{v_1 + v_2} \\\\M_{cm} = \frac{5(0) \ + \ 2(3)}{0 + 3} \\\\M_{cm} = 2 \ kg\)

Thus, the initial center mass of the two bricks is 2 kg.

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The term energy density tells us that the difference between the particle model and the energy interaction model lies in how the energy is distributed or spread out within a system.What is Energy Density?The amount of energy per unit volume that a substance or system contains is known as energy density.

Energy density is a measure of how much energy is stored in a given volume or mass of a substance or system. It is a vital physical property that affects how a system behaves and how much energy can be extracted from it.Particle Model Vs. Energy Interaction Model The particle model of matter refers to the view of matter as being composed of tiny, indivisible particles that are in constant motion and have kinetic energy. In this model, the behavior of matter is primarily determined by the interactions between these particles.The energy interaction model, on the other hand, views matter as being composed of different forms of energy that can be transferred or transformed from one form to another.

In this model, the behavior of matter is primarily determined by the interactions between different forms of energy.The primary difference between these two models lies in how they distribute or spread out energy within a system. In the particle model, energy is primarily distributed among the particles, while in the energy interaction model, energy is primarily distributed among the different forms of energy that are present in the system. This difference in energy distribution can have significant implications for how a system behaves and how much energy can be extracted from it.

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Answer:

Option D is correct.

Explanation:

\(Cm_{246} +C_{12}\) → \(No_{254}\)

Hence, it is the fusion reaction.

When two or more nuclei fuse together to form a heavy nucleus with the energy released, is called fusion.

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Answer:

Unlike most volcanoes and earthquakes, tsunamis are not direct consequences of plate tectonics. The most common tsunami trigger is submarine earthquakes, but they can also be set off by a volcanic eruption under, or next to, the sea. Thus volcanoes, earthquakes and tsunamis are part of the same story.

Explanation:

The friction coefficient is inversely related to velocity in laminar flow because the total head is proportional to the speed rather than velocity squared.

According to Bernoulli's Principle, pressure inside a flowing fluid falls as speed increases. The behaviour of an ideal fluid moving through a pipe or other confined tube, like a pump, is explained by the Bernoulli's Principle.

According to the equation of continuity, when a liquid is flowing in a straight line, av = a constant, where an is the cross-sectional area and v is the flow velocity. When water moving through a wider pipe enters a narrower conduit, its area of cross-section reduces and its velocity rises.

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Answer:

SPECIALISED CONNECTIVE TISSUES

dense regular connective tissue which is found in tendons and ligaments, and is shown below. ...

cartilage - (see the topic on bone and cartilage)

adipose tissue (see adipose cells)

haemopoietic tissue (bone marrow, lymphoid tissue)

blood (see the topic on blood)

Explanation:

hope you like my ans

Answer: Types of Connective Tissue

Cartilage. Cartilage is a type of supporting connective tissue.

ex:Hyaline cartilage, Hyaline cartilage, Elastic cartilage

Bone. Bone is another type of supporting connective tissue.

ex; Spongy bone, Compact bone

Adipose. Adipose is another type of supporting connective tissue that provides cushions and stores excess energy and fat.

Blood.

ex;Lymph

Hemapoetic/Lymphatic.

Elastic.

Fibrous

Answer:

The fibers of the sweater lose electrons.

Answer:

its b) 1:50 just did it on apex

Explanation:

a toy car that is 0.12 m long is used to model the actions of an actual car that is 6 m long. which ratio shows the relationship between the sizes of the model and the actual car?

a. 50:1

b. 1:50 this is right

c. 5:1

d. 1:5

Answer:

C.the coefficient of friction

Explanation:

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The correct tight asymptotic bound for T(n) in 1, 2, 3 where T(1)=c is Θ(n log n).

To find the tight asymptotic bound of T(n), we will use the Master Theorem. So, let's take a look at each recurrence relation:

1. T(n) = 10T(n/10)+100nApplying the Master Theorem: a = 10, b = 10, f(n) = 100nlogb a = log10 10 = 1 Since f(n) = Θ(n) = Θ(n1), Case 2 of the Master Theorem applies. The solution, therefore, is Θ(n log n).

2. T(n) = T(n/10)+100n Here, a = 1, b = 10, f(n) = 100nlogb a = log10 1 = 0 Since f(n) = Θ(n0) = Θ(1), Case 1 of the Master Theorem applies. The solution, therefore, is Θ(n).

3. T(n) = T(n/10)+100 Here, a = 1, b = 10, f(n) = 100logb a = log10 1 = 0 Since f(n) = Θ(1) = Θ(n0), Case 2 of the Master Theorem applies. The solution, therefore, is Θ(log n).Therefore, the correct tight asymptotic bound for T(n) in 1, 2, 3 where T(1)=c is Θ(n log n).

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Let's use the Master Theorem to find the asymptotic tight bound for each of the three recurrence relations given in the problem statement.

1. T(n) = 10T(n/10) + 100n Here, a = 10, b = 10, and f(n) = 100n. We can calculate the value of logb a as follows: log10 10 = 1 Since f(n) = Θ(n1), we can apply Case 2 of the Master Theorem and get: T(n) = Θ(n log n)Therefore, the correct tight asymptotic bound for T(n) in the first case is Θ(n log n).

2. T(n) = T(n/10) + 100n Here, a = 1, b = 10, and f(n) = 100n. We can calculate the value of logb a as follows: log10 1 = 0 Since f(n) = Θ(n1), we can apply Case 1 of the Master Theorem and get: T(n) = Θ(n)Therefore, the correct tight asymptotic bound for T(n) in the second case is Θ(n).

3. T(n) = T(n/10) + 100 Here, a = 1, b = 10, and f(n) = 100. We can calculate the value of logb a as follows: log10 1 = 0 Since f(n) = Θ(1), we can apply Case 2 of the Master Theorem and get: T(n) = Θ(log n) Therefore, the correct tight asymptotic bound for T(n) in the third case is Θ(log n). Hence, the three asymptotic tight bounds for T(n) are Θ(n log n), Θ(n), and Θ(log n), respectively.

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Answer:

240km/h

Explanation:

speed=distance/time

speed=600/2.5

=240km/h

Answer:

you know the answer

Explanation:

Answer:

You answer is C. A hamburger on the grill

What is Conduction?

Conduction is the transfer of heat through DIRECT CONTACT.

How can I tell the difference between Conduction, Convection, and Radiation?

To know how to find the difference, you must first now what each type of heat transfer is.

Conduction-the transfer of heat through DIRECT CONTACT.

Radiation-The transfer of heat without direct contact, energy

Convection-Heat rising and cold sinking

Just think about these definitions everytime you see a question like this!

Answer:

The extension is directly proportional to the force applied.

ex: if the force is doubled, the extension doubles. This works until the limit of proportionality is exceeded.

Hope this helped~

Explanation:

Answer:

the extension will also double, unless the spring has reached its limit of proportionality because of Hooke's law: The extension of a spring is directly proportional to the force applied, provided that the limit of proportionality is not exceeded.