ANSWER QUICK 30 POINTS
What force controls the movement of the planets around the sun, holds together stars grouped in galaxies, and galaxies grouped in clusters? Thoroughly explain your answer, making sure to include an example and describe how this force keeps planets in orbit. Make sure to write at least 3-5 sentences and proper conventions (spelling, grammar, punctuation, etc.) to respond. Put all answers in your own words

Answer:

A

Explanation:

How is the rotation of the earth responsible for causing day and night?

We get day and night because the Earth spins (or rotates) on an imaginary line called its axis and different parts of the planet are facing towards the Sun or away from it. It takes 24 hours for the world to turn all the way around, and we call this a day.

Answer:

F = 48 N

Explanation:

The gravitational force between two object is given by Newton's Gravitational Law as:

F = Gm₁m₂/r²

where,

F = Gravitational Force = 12 N

G = Universal Gravitational Constant

m₁ = mass of first object

m₂ = mass of second object

r = distance between them = 6 m

Therefore,

12 N = Gm₁m₂/(6 m)²

Gm₁m₂ = 432 Nm²   ---------------- equation 1

Now, for r = 3 m:

F = Gm₁m₂/(3 m)²

using equation 1:

F = (432 Nm²)/(9 m²)

F = 48 N

Two masses m₁ and m₂ exert a gravitational force of 12 N when they are 6m apart, if they are now 3 m apart, the gravitational force is 48.02 N.  

The gravitational force is given by:

\( F = \frac{Gm_{1}m_{2}}{d^{2}} \)

Where:

m₁ and m₂ are the masses of the first and second body, respectively

G: is the gravitational constant = 6.67x10⁻¹¹ N*m²*kg⁻²

d: is the distance between m₁ and m₂    

When the two masses exert a gravitational force of 12 N when they are 6 m apart, we have:

\( F_{1} = \frac{Gm_{1}m_{2}}{d_{1}^{2}} \)

\( 12 N = \frac{6.67 \cdot 10^{-11} N*m^{2}kg^{-2}*m_{1}m_{2}}{(6 m)^{2}} \)  

\( m_{1}m_{2} = \frac{12 N*(6 m)^{2}}{6.67 \cdot 10^{-11} N*m^{2}kg^{-2}} = 6.48 \cdot 10^{12} \:kg^{2} \)

When the distance is 3 meters, the gravitational force is:

\( F_{2} = \frac{Gm_{1}m_{2}}{d_{2}^{2}} = \frac{6.67 \cdot 10^{-11} N*m^{2}kg^{-2}*6.48 \cdot 10^{12} \:kg^{2}}{(3 m)^{2}} = 48.02 N \)

Therefore, the gravitational force will be 48.02 N if the masses are 3 m apart.

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The measurement of body temperature is an example of a variable that uses option A, interval scale.

A scale with an interval has order and a meaningful difference between two values. Temperature (Fahrenheit), temperature (Celsius), pH, SAT score (200-800), and credit score are a few examples of interval variables (300-850).

One variable that uses interval scale is the measurement of body temperature.

Only ratio scales have a genuine zero, even though interval and ratio data can both be categorized, sorted, and spaced equally apart between consecutive values. As 0 is not the lowest attainable temperature, temperature in Celsius or Fahrenheit, for instance, is measured on an interval scale.

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Given statment "The length of the repeat unit of a microsatellite is longer than the length of the repeat unit of the minisatellite"is true. Because the length of the repeat unit of a microsatellite is shorter than that of a minisatellite.

True. Microsatellites and minisatellites are both types of tandem repeats, which are repeating sequences of DNA that occur one after another in a particular location on a chromosome. However, the main difference between the two lies in the length of their repeat units.

Microsatellites have shorter repeat units consisting of 1-6 nucleotides, whereas minisatellites have longer repeat units consisting of 10-60 nucleotides. This means that the length of the repeat unit of a microsatellite is shorter than that of a minisatellite.
Another difference between the two types of tandem repeats is their location on the chromosome. Microsatellites are generally located in the non-coding regions of DNA, whereas minisatellites are found in both coding and non-coding regions.

The difference in the length and location of these tandem repeats makes them useful for different types of genetic analysis. Microsatellites are commonly used for forensic analysis, paternity testing, and population genetics studies, while minisatellites are used for studying genetic variation and mutation rates.
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When the sun rises, each person turns to the person who is closest to them. Let's say there are n people standing in a line, numbered from 1 to n. To find out who each person will turn to, we need to consider the distances between each pair of people.

Let's assume that person 1 is standing at one end of the line and person n is standing at the other end. Person 1 will turn to the person closest to them, which is person 2. Person 2 will then turn to the person closest to them, which is either person 1 or person 3. However, since the distances between each pair of people are distinct, person 2 will turn to person 3. This pattern continues until person n-1 turns to person n.

When the sun rises, each person will turn to the person closest to them, following the pattern described above.

When the sun rises, each person with a water pistol will turn to the person who is closest to them. Let's say we have n people standing on flat ground, each holding a water pistol. To determine who each person will turn to, we need to consider the distinct distances between each pair of people.

First, let's assume that the people are standing in a line, numbered from 1 to n. Person 1 will turn to the person closest to them, which is person 2. Person 2, on the other hand, has two options - they can either turn to person 1 or to person 3. However, since the distances between each pair of people are distinct, person 2 will turn to person 3.

Now, let's consider person 3. They have three options - they can turn to person 2, person 4, or person 1. Since the distances are distinct, person 3 will turn to person 4. This pattern continues until we reach person n-1, who will turn to person n.

In this scenario, person 1 turns to person 2, person 2 turns to person 3, person 3 turns to person 4, and so on, until person n-1 turns to person n.

When the sun rises, each person will turn to the person who is closest to them, following the pattern described above.

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Answer:

B. The refridgerant

Explanation:

this allows the refrigerant to absorb or release heat

The three-terminal switching device that only conducts current from the cathode to the anode is called a thyristor. Thyristors are semiconductor devices commonly used in power electronics for various applications, including power control and switching.

One of the most common types of thyristors is the Silicon-Controlled Rectifier (SCR), which consists of three terminals: the anode, cathode, and gate. The SCR operates in a manner where it remains in a non-conductive state until a triggering signal is applied to the gate terminal. Once triggered, the SCR switches into a conducting state and allows current to flow from the cathode to the anode.

The conducting state of the SCR persists even after the triggering signal is removed until the current flowing through the device drops below a certain threshold level. At that point, the SCR automatically returns to its non-conductive state, blocking current flow until another trigger is applied.

Thyristors like the SCR are widely used in applications such as power supplies, motor control, heating systems, lighting controls, and voltage regulation. Their ability to handle high power levels and their robustness make them suitable for various industrial and electronic applications where controlled switching of high currents is required.

It's important to note that while thyristors like the SCR conduct current in only one direction (from cathode to anode), there are other three-terminal devices, such as triacs, which can conduct current in both directions (bidirectional). The choice of device depends on the specific requirements of the application.

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Respuesta: T2 = 131.04K

Explicación: Dado lo siguiente:

Presión, P1 = 1.5 atm = 1.5 × 760 = 1140 mmHg

Presión, P2 = 1.2 atm = 1.2 × 760 = 912 mmHg

Volumen, V1 = 500cm3 Volumen, V2 = 300cm3

Temperatura, T1 = 273K Temperatura, T2 =?

Usando la fórmula de gas combinada:

P1V1 / T1 = P2V2 / T2

Ingresando nuestros valores:

(1140 × 500) / 273 = (912 × 300) / T2

T2 × (1140 × 500) = 912 × 300 × 273

T2 = 74692800/570000 T2 = 131.04K

Nowadays, breeders work to produce animals and plants with desirable phenotypic qualities, such as high crop yields, disease resistance, quick growth, and many other phenotypic traits. Option C is right as a result.

Selective breeding is used. a process for creating an organism from parents who already have the required characteristics. a natural method of breeding offspring with desired traits.

Breeders today strive to create animals with desired phenotypic characteristics, such as high crop yields, disease resistance, rapid growth, and many other phenotypic traits.

Thus, the correct option is C.

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Your question seems incomplete, the probable complete question is:

Which of the following questions would be most helpful in gathering information about selective breeding?

A. What traits in a chicken would be beneficial for humans?

OB. How long does it take for dogs to reproduce and birth puppies?

O C. How do wild cactus plants reproduce in the desert?

D. Why do peaches only grow in the summer?

Answer:

Ver respuesta en el procedimiento

Explanation:

En este caso, necesitamos la expresión que nos permite hallar el Trabajo realizado por un objeto a través de una distancia dada. Esa expresión es:

W = F * x   (1)

Donde:

W: Trabajo en Joules (J)

F: Fuerza en Newton (N)

x: Distancia o radio en metros (m)

En este caso, solo tenemos una masa de 800 lb, y la distancia que se esta recorriendo. No tenemos ningún dato adicional que nos diga si por ejemplo, es empujado por una persona o parecido, solo los datos de la masa que lleva la carreta. Por lo tanto, la única fuerza que podemos asumir se está ejerciendo, sería la fuerza del peso del objeto que se calcula así:

P = mg   (2)

Donde:

g: aceleración de gravedad (9,8 m/s²)

Ahora bien si reemplazamos (2) en (1) nos queda:

W = mgx  (3)

Y antes de realizar el cálculo debemos convertir la unidad de masa en libra a kilogramo, usando la siguiente conversión:  1 lb -----> 0,454 kg por tanto:

m = 800 * 0,454 = 363.2 kg

Ahora podemos usar (3) y calcular el trabajo:

W = 363,2 * 9,8 * 100

W = 355936 J o simplemente 355,936 kJ

Espero te sirva.

PD: También puedes usar el valor de gravedad como 10 m/s² y tendrás un resultado de 363200 J o 363,2 kJ.

The equation you are referring to, Hnet=fxHnet, relates to the net arc energy input of a welding process.

The net arc energy input, Hnet, is equal to the product of the welding current, f, and the welding voltage, Hnet. This equation is used to calculate the amount of energy that is transferred to the weld during the welding process.

It is important to monitor the net arc energy input to ensure that the weld is of high quality and to prevent defects such as porosity and cracking.

By adjusting the welding current and voltage, the net arc energy input can be optimized for the specific welding application.

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The one-dimensional diffusion equation or Fick's second law is the name of this equation. For the geographically and temporally variable concentration, it is solvable.

A diffusion explanation is what?

The movement of molecules along a concentration gradient is known as diffusion. It is a significant process that all living things go through. Diffusion facilitates the flow of materials into and out of cells.

Which definition of diffusion is the best?

Diffusion is the movement of molecules from a region where they are more concentrated to one where they are less concentrated. Therefore, "Movement of molecules from a region of their greater concentration to a region of their lower concentration" is the right response.

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Right

Hips

Balance. Eyes. Elbow. Follow-Through -- when practicing.

Right leg

To the person you passing to

To answer this question, we need to use the equation for sliding friction. Sliding friction is the force that opposes the motion of a box or an object that slides across a surface.

The equation for sliding friction is:f = μNwhere:f is the force of sliding friction,μ is the coefficient of sliding friction, andN is the normal force between the box and the surface on which it is sliding.We can use this equation to find the coefficient of sliding friction when we know the force required to move the box at a constant rate.Let's use the values in the question to find the coefficient of sliding friction:

f = μNf = 6.0 N (the force required to drag the box at a constant rate)N = 18 N (the weight of the box)μ = f/Nμ = 6.0 N / 18 Nμ = 0.33 (rounded to two decimal places)

Therefore, the coefficient of sliding friction is 0.33. This means that the force of sliding friction is 0.33 times the normal force between the box and the surface. This also means that it takes more force to move the box than it does to keep it moving at a constant rate.

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Answer:

If you mean for exercising  then, The Treadmill. Purists may claim that treadmill running isn't "real" running. ...

The Elliptical Trainer. ...

The Stair-Climber. ...

The Cross-Country Skiing Simulator. are all  machines that help you practice agility

Explanation:

The speed of the cars just after the collision is 0.875 m/s.the formula to be used  m1u1 + m2u2 = m1v1 + m2v2.V=14000*1.5÷14000+1000=0.875m/s

Teenagers, young adults, and the others take the stimulant drug "speed" to feel more focused and alert, as well as, in some circumstances, to get high. Several types of speed are also used by some people to suppress their appetite.

Simply because they are not paying attention on their driving pace, drivers frequently go above the speed limit. Traffic flow, operating a powerful car, and listening to music were all mentioned as contributing factors. Some drivers claimed that passengers' distraction caused them to accelerate.

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Answer:c

Explanation:c

This question involves the concepts of the time period, orbital radius, and gravitational constant.

The theoretical period of the moon is "658 hr".

The theoretical time period of the moon around the earth can be found using the following formula:

\(\frac{T^2}{R^3}=\frac{4\pi^2}{GM}\)

where,

T = Time Period of Moon = ?

R = Orbital Radius = 3.84 x 10⁸ m

G = Gravitational Constant = 6.67 x 10⁻¹¹ N.m²/kg²

M = Mass of Earth = 5.97 x 10²⁴ kg

Therefore,

\(\frac{T^2}{(3.84\ x\ 10^8\ m)^3}=\frac{4\pi^2}{(6.67\ x\ 10^{-11}\ N.m^2/kg^2)(5.97\ x\ 10^{24}\ kg)}\\\\T^2=(9.91\ x\ 10^{-14}\ s^2/m^3)(56.62\ x\ 10^{24}\ m^3)\\\\T=\sqrt{561.34\ x\ 10^{10}\ s^2}\)

T = 2.37 x 10⁶ s\((\frac{1\ h}{3600\ s})\)

T = 658 hr

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The attached picture shows the derivation of the formula for orbital speed.

Answer:

The correct option is;

A. Circular

Explanation:

Some of the light that impinges on the surface are reflected and the rest are transmitted to a different medium

At the surface of the next medium also, some of the light are transmitted while the others are reflected and refracted through the first medium

The speed of light (and hence the wavelength and color) refracted through the thin film is changed as the distance the refracted light travels through the thin film is increased as we move away from the point directly in the front view to some distance as the reflected light path from those distance to the eye is increased due to their inclination giving them a different wavelength which are all equal at a radial distance from the eye hence forming a circular fringes.

Answer:

C

Explanation:

you cannot any other thing if you don't even know what you are designing.

The first step in the technological design process is to define a need or problem, therefore the correct answer is option C.

There are mainly five stages of technological design,

Identifying the issue that needs to be solved is the first step in every problem-solving process.

The second stage is to imagine; during this phase,

The chosen product from the imaging stage is planned in the third stage.

Testing, evaluating, and modifying the product are the fourth stage.

The sharing of your solution is the fifth step. To gather comments, discuss your ideas with others, and enhance your product,

Technological designing is a lengthy process that involves a number of steps but identifying the problem we are going to is the most important step among all of the steps because a wrong approach to the problem would lead to faulty design in the later stages.

Thus, the first step in the technological design process is to define a need or problem, therefore the correct answer is option C.

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To find F 05, we need to use the formula:

F 05 = (v2/v1)^(1/0.5) * F v1

Plugging in the values we have:

F 05 = (11/8)^(1/0.5) * F 8

F 05 = 2.95 * F 8

We don't have a specific value for F 8, so we cannot determine the exact value of F 05. Therefore, the answer cannot be determined from the given information and none of the options A, B, C, or D are correct.
To find the value of F, we will use the given formula: F = 0.5 * (v1 + v2).

Given:
v1 = 8
v2 = 11

Step 1: Substitute the given values into the formula.
F = 0.5 * (8 + 11)

Step 2: Calculate the sum within the parentheses.
F = 0.5 * (19)

Step 3: Multiply by 0.5.
F = 9.5

None of the provided options (A) 2.95, (B) 2.30, (C) 4.74, and (D) 3.66 match the calculated value of F = 9.5. Please check the given information or formula to ensure it is correct.

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The graph shown in the first option nicely plots the lion's and gazelle's velocities as a function of time, so option A is the correct answer.

Velocity is the rate of change of displacement over time.

As mentioned in the problem of running at a constant speed towards a gazelle with a standing lion as shown above.

So option A is correct.

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Answer:

6, 3, 2, 5, 4, 1

Explanation:

Let's describe them from smallest to largest. In fact the size order is not exact as there are exceptions.

An asteroid is a rocky body which lies in the asteroid belt between Mars and Jupiter. They are typically quite small object. The largest asteroid Ceres has been reclassified as a dwarf planet.

A moon is typically a rocky body which is in orbit around a planet. Some moons such as our Moon are quite large and are typically bigger than asteroid. Some moons can actually be smaller than some asteroids.

A planet is a nearly spherical body which is in orbit around the Sun. Planets are larger than moons.

A star is what planets orbit around. It is the source of light and heat. Our Sun is a star which is many times bigger than all of the planets.

A solar system is a star and all of its planets, asteroids, comets and other bodies. It is significantly bigger than a star.

A galaxy, such as our Milky Way Galaxy, is a collection of solar systems orbiting around a central core. Most galaxies have a supermassive black hole at their centres.

Galaxies also form clusters which are large scale structures.

The universe is everything. It contains billions of galaxies.

Answer:

I think its C and D

Explanation:

compressed0.32 meters

Explanation

Step 1

The force exerted by a spring on objects attached to its ends is proportional to the spring's change in length away from its equilibrium length and is always directed towards its equilibrium position.

so

let

replace and solve for x

the negative symbol indicates the spring is compresed

so, the answer is

0.32 meters

I hope this helps you

Explanation:

Vector, in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude.

Answer:

.004 Hz

Explanation:

Frequeny is cycles per second. An oscillation is 1 cycle

F=cycles/sec

4/100

=0.004Hz (Hz- Hertz=1 cycle/sec)

The wavelength (λ) of the electromagnetic wave is approximately 81.56 meters, and its frequency (f) is approximately 3.66 x 10^6 Hz.

e = i(225 V/m)sin[(0.077 m^(-1))z - (2.3 x 10^7 rad/s)t]
The equation contains two important terms: (0.077 m^(-1)) and (2.3 x 10^7 rad/s).
1. Wavelength (λ): The term (0.077 m^(-1)) represents the wave number (k), which is related to the wavelength as follows: k = 2π/λ. To find the wavelength, we can rearrange the formula:
λ = 2π/k = 2π/(0.077 m^(-1)) ≈ 81.56 m
2. Frequency (f): The term (2.3 x 10^7 rad/s) represents the angular frequency (ω), which is related to the frequency as follows: ω = 2πf. To find the frequency, we can rearrange the formula:
f = ω/(2π) = (2.3 x 10^7 rad/s)/(2π) ≈ 3.66 x 10^6 Hz

So, the wavelength (λ) of the electromagnetic wave is approximately 81.56 meters, and its frequency (f) is approximately 3.66 x 10^6 Hz.

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Answer:

Solution s =ut + ½ at 2 = 0×10 + ½ × 10×10 2 = 1000/2=500 m

Explanation:

The body is accelerating from stationary to a velocity of 100 m/s within 10 seconds. Thus, the distance covered is 500 m.

Acceleration of a moving body is the rate of change in its velocity. Acceleration is a vector quantity having both magnitude and direction. The change in magnitude or direction or both in velocity causes an acceleration in the moving body.

The relation between distance with the velocity, acceleration and time is given as :

s = ut + 1/2 at²

The initial velocity u = 0 here

v = 100 m/s

t = 10 seconds.

acceleration =  100 /10 = 10 m/s²

Then the distance covered is calculated as follows:

s = 1/2 at²

  = 1/2 10 m/s²× 10²

  = 500 m

Therefore, the distance covered by the body is 500 m.

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