based on this image alone, approximately how much of the galaxy's total mass is located within 5 kpc of the center, would you say?

No.of primary turns/no.of secondary equal to current in primary /current in secondary therefore 200/120=3.50/C.in secondary =2.1A

A left-linear grammar is a kind of grammar in which all the production rules are of type A → aB or A → a, where A and B are non-terminals and a is a terminal symbol.

An NFA (Nondeterministic Finite Automaton) can be transformed into a left-linear grammar using the following steps:

If q0 is the initial state of NFA, S → q0B is the starting rule, where B is the first state reached from q0 using an ε-transition.

If qf is the final state of NFA, then we create a rule of form B → a, where a is the input symbol, and also a rule of form B → aC, where a is the input symbol and C is the state reached from qf after consuming a.

The rest of the rules are generated based on the following principle:

If (p,a,q) is a transition of NFA, then we create a rule of form C → bD, where b is an input symbol, and D is the state reached from q after consuming a.

Consequently, we obtain a left-linear grammar from an NFA directly.

We can directly get left-linear grammar from an NFA by utilizing the above-described method. This is helpful because NFA is more versatile than a grammar, as it can recognize regular languages without needing to explicitly list all of their strings.

In contrast, grammar recognizes the language by explicitly listing all of its strings. A language may have an infinite number of strings, which makes grammar impractical to use in such cases.

Automata, on the other hand, are more practical in this situation because they define languages more naturally, by defining a set of strings that can be accepted by an automaton.

A left-linear grammar can be directly obtained from an NFA using the method described above. This technique is useful because automata are more versatile than grammars, making them more practical for languages with an infinite number of strings.

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Answer:

Thermosphere A,B

Mesosphere B,C,D

Stratosphere D,E,F

Troposphere G

Hope this helps please give me brainliest!

God bless :)

Answer:

Explanation:

Welcome to Pagasi b,  new recruit.  You will enjoy your new, fresh , home planet.  Your new home world is more relaxed than earth, days are longer by about quadruple, as are the nights.   Also seasons are also about 4 times  as long on Pagasi b. one year on Pagasi b is a bit over 4 years on earth.  You'll get great harvests and plenty of time to rest up during the mild, yet cool winters.  If the equatorial region is too warm for you during summer you can always travel north as the planet is at a 79 degree axis tilt , and will provide much cooler climes as you travel north for summers.  Have a great day, day, day, day   :P

Answer:

you have to organize the data. a= acceleration vi=inicial velocity vf=final velocity  t=time.

a=80m/s

vi=0

vf=?

t=40 s

the formula you have to use is:

vf=vi+a*t  (final velocity= inicial velocity plus acceleration times time)

Explanation:

I was the best one at my class, hope it helped

Answer: 320 m/s

Explanation:  V initial = 0, V final= ?   Acceleration = 8m/s/s  t=40s

In simple harmonic motion, an object oscillates back and forth around an equilibrium position with a motion that is periodic and repetitive. The object experiences a restoring force that is proportional to its displacement from the equilibrium position.

As a result, the object moves with an acceleration that is also proportional to its displacement, and this leads to periodic changes in its potential energy and kinetic energy.

The speed of the object is greatest when its displacement from the equilibrium position is zero, and when the magnitude of the acceleration is a minimum. This occurs when the object is at the maximum displacement, and is about to change direction, or when the object is at the equilibrium position, where the acceleration and velocity are both zero. At these points, the object has its maximum speed, which is determined by its amplitude and frequency of oscillation.

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Answer:

Power is 4373.25 W

Explanation:

We have,

The lift raises a car of mass 850 kg to a height of 2.1 m. It uses a force of 8330 N and takes 4 seconds to raise the car. It is required to find the power of the lift. Power is equal to the rate at which the work is done. So,

\(P=\dfrac{Fd}{t}\\\\P=\dfrac{8330\times 2.1}{4}\\\\P=4373.25\ W\)

So, the power of the lift is 4373.25 W.

The reason you have to keep running your engine when your car is moving at a constant velocity on the highway is to overcome frictional forces.

So, the correct answer is C.

When your car is moving along the highway at a constant velocity, the net force acting on it is zero. However, you still need to keep running your engine to overcome the frictional forces acting on your car.

Frictional forces such as air resistance, rolling resistance, and the resistance caused by the engine and transmission of your car all act against the motion of your car.

Therefore, your engine needs to continue to produce power to counteract these forces and maintain your car's speed.

Additionally, keeping your engine running is important to power essential features of your car, such as your radio and air conditioning, and to prepare for sudden acceleration needs, such as when merging onto a highway or passing another vehicle.

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Answer:

scientists rely on seismic waves—shock waves generated by earthquakes and explosions that travel through Earth and across its surface—to reveal the structure of the interior of the planet.

Answer:

43.3 m/s.

Explanation:

Assuming the potential energy is due to the gravitational potential energy, we can use the conservation of energy to find the kinetic energy:

Total energy = Potential energy + Kinetic energy

Kinetic energy = Total energy - Potential energy

Kinetic energy = 300 J - 40 J = 260 J

However, we need to know the mass of the object to convert the kinetic energy to velocity. We can use the potential energy to find the mass:

Potential energy = mgh

40 J = m(9.81 m/s^2)(300 m)

m = 0.137 kg

Now we can use the kinetic energy to find the velocity:

Kinetic energy = (1/2)mv^2

260 J = (1/2)(0.137 kg)v^2

v^2 = (2*260 J) / 0.137 kg

v = 43.3 m/s (rounded to one decimal place)

Therefore, the kinetic energy is 260 J and the velocity of the object when it reaches the ground is 43.3 m/s.

Answer: 9.05 s

v = 3 m/s

u = 22 m/s

Deceleration = 2.1 m/s^2

∴ 3 = 22 - 2.1 ( t )

∴ t = 9 .05 s

Answer:

low melting point

Ionic compounds have high melting and boiling points. This is because a considerable amount of energy is required to break the strong inter-ionic attraction

Explanation:

Answer:

0 becouse it will still before falling

Explanation:

Answer:

Approximately \(0.45\) (assuming that the surface is level, the mass is moving at constant velocity, and that \(g = 9.81\; {\rm m\cdot s^{-2}}\).)

Explanation:

With a power of \(P = 1.0\; {\rm kW} = 1.0\times 10^{3} \; {\rm W}\), the work that would be done over \(t = 10\; {\rm s}\) would be:

\(\begin{aligned}(\text{work}) &= (\text{power})\, (\text{time}) \\ &= (1.0\times 10^{3}\; {\rm W})\, (10\; {\rm s}) \\ &= 1.0 \times 10^{4}\; {\rm J}\end{aligned}\).

Divide work by distance to find the force that did the work:

\(\begin{aligned} (\text{force}) &= \frac{(\text{work})}{(\text{distance})} \\ &= \frac{1.0\times 10^{4}\; {\rm J}}{50\; {\rm m}} \\ &= 200\; {\rm N}\end{aligned}\).

If this mass is moving at a constant velocity, the magnitude of friction on this mass will be equal to that of the external force, \(200\; {\rm N}\).

If the surface is level, the magnitude of the normal force on this mass will be equal to that of weight:

\(\begin{aligned}(\text{weight}) &= (\text{mass})\, g \\ &= (45\; {\rm kg})\, (9.81\; {\rm N\cdot kg^{-2}}) \\ &\approx 4.41 \times 10^{3}\; {\rm N}\end{aligned}\).

Divide the magnitude of friction by normal force to find the coefficient of friction:

\(\begin{aligned}& (\text{coefficient of friction}) \\ =\; & \frac{(\text{friction})}{(\text{normal force})} \\ \approx\; & \frac{200\; {\rm N}}{(45\; {\rm kg})\, (9.81\; {\rm N\cdot kg^{-1}}))} \\ \approx \; & 0.45\end{aligned}\).

Answer:

Explanation:

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They cannot tell the difference between people and other objects.

They will wait for crossing pedestrians even if signaled to keep driving. Explanation:

Just did it

The padded back of the seat supports the head and back of the child, and the force of impact decreases over a time interval, reducing the risk of injury. Furthermore, the child is less likely to experience whiplash due to the support of the head.

1. As the child rides in the seat, his/her head and back rest against the padded back of the seat. If the car is brought to a rapid stop (as in a head-on collision) the child will continue to move backward at the before-crash speed until he/she hits something.

2. The object hit is the back of the seat (supporting the entire back and head) which is padded and as a result the force decreases to the maximum value over a time interval.

3. Granted this time interval may be small but that is considerably better than instantaneous. Also since the head is supported, there will be no whiplash.



In conclusion, it is much safer for an infant to be in a child safety seat installed facing the rear of the car in the event of a head-on collision. The padded back of the seat supports the head and back of the child, and the force of impact decreases over a time interval, reducing the risk of injury. Furthermore, the child is less likely to experience whiplash due to the support of the head.

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Make us of equation of motion formulas.

a.) the total time of flight = 8.16 s

b.) the maximum height reached = 81.6 m

c.) the velocity at t = 5s = 9 m/s

Motion of any object under gravity is the vertical motion of the object under the influence of acceleration due to gravity.

Given that a ball is projected with 40 m/s vertically upward.

A. the total time of flight of the ball will be T = 2t

At maximum height, v = 0.

v = u - gt

0 = 40 - 9.8t

9.8t = 40

t = 40 / 9.8

t = 4.08 s

T = 2 × 4.08

T = 8.16 s

B. the maximum height H can be found by using the formula

v² = u² - 2gH

At maximum height, v = 0

0 = u² - 2 × 9.8 × H

40² = 19.6H

H = 1600/19.6

H = 81.6 m

C. the velocity at t = 5s will be v

v = u - gt

v = 40 - 9.8 × 5

v = 40 - 49

v = - 9 m/s

That is, 9 m/s in the opposite direction ( coming downward )

Therefore, the total time of flight of the ball is 8.16 s, the maximum height reached is 81.6 m and the velocity at t = 5s is 9 m/s

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Viewed from the same place, it will lag by about 4 minutes per day.

7 days later puts it at roughly 8:28 PM.

Yes, Potential energy is the stored energy in any object or system by virtue of its position or arrangement of parts. However, it isn't affected by the environment outside of the object or system, such as air or height. On the other hand, kinetic energy is the energy of an object or a system's particles in motion.

The basic elements for every contract include

1) an offer,

2) acceptance,

3) Awareness

4) with legal capacity, for a legal purpose

A contract is an agreement between two or more parties, to perform a specific job or duty. A contract is usually temporary or of fixed duration and usually governed by a written agreement.

The basic elements every contract should contain are as follows:

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a) The isocost curve equation is G = (20000 - 100C)/500. b) The isocost curve equation is G = (30000 - 100c)/500. c) The isocost curve equation is G = (20000 - 100C)/375. d)  The isocost curve equation is G = (20000 - 120C)/500.

To draw the isocost curve showing the different combinations of gas and coal, we need to use the cost per unit values for coal and gas, as well as the given expenditure (TC) and the changes in expenditure or prices.

Let's denote the quantity of coal as C and the quantity of gas as G. The cost per unit of coal is 100, and the cost per unit of gas is 500.

(a) Initial expenditure (TC) of 20000:

To find the combinations of gas and coal that can be purchased with an initial expenditure of 20000, we can use the following isocost equation

TC = 100C + 500G

We can rearrange the equation to solve for G in terms of C

G = (TC - 100C) / 500

Now we can plot the isocost curve with TC = 20000 using the equation above.

(b) Expenditure (TC) increases by 50%

If the expenditure increases by 50%, the new expenditure (TC_new) becomes 1.5 × TC = 1.5 × 20000 = 30000.

We can use the same isocost equation as before, but with the new expenditure value:

TC_new = 100C + 500G

Rearranging the equation to solve for G

G = (TC_new - 100C) / 500

Now we can plot the isocost curve with TC_new = 30000.

(c) Gas price reduced by 25%:

If the gas price is reduced by 25%, the new cost per unit of gas (Gas_new) becomes 0.75 × 500 = 375.

We can use the original isocost equation, but with the new cost per unit value:

TC = 100C + 375G

Rearranging the equation to solve for G

G = (TC - 100C) / 375

Now we can plot the isocost curve with the reduced gas price.

(d) Coal price rises by 20%

If the coal price rises by 20%, the new cost per unit of coal (Coal_new) becomes 1.2 × 100 = 120.

We can use the original isocost equation, but with the new cost per unit value:

TC = 120C + 500G

Rearranging the equation to solve for G:

G = (TC - 120C) / 500

Now we can plot the isocost curve with the increased coal price.

By plotting these isocost curves on a graph with G on the y-axis and C on the x-axis, we can visualize the different combinations of gas and coal that can be purchased at the given expenditures or price changes.

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That's a parallel circuit. (B)

When current from Point-A reaches the 3-way intersection just to the right of Point-B, it has to make a choice:  Either turn left, go through B, and light the lower bulb, or go straight and light the upper bulb.

A circuit that has any "decision" points in it is a parallel circuit.  What happens in the real world is:  The current splits up.  Some of the current that reaches the intersection turns left toward Point-B, and the rest of it goes straight up.

A series circuit is one in which there's only one possible path all the way around.  There are no intersections of more than 2 roads, and no electron ever has to decide which way to flow.

An open circuit is one in which there's a break somewhere along the line and electrons can't jump across it.  It's like a railroad where a big piece is cut out of the track somewhere.  So no trains can travel on that route, and there's no current flowing anywhere in the circuit.

I'm not so sure about a "combination" circuit.  I guess you could give that name to a complicated circuit that has some series parts and some parallel-parts.  Personally, I'd call that a "series-parallel" circuit.  But it really doesn't matter right now.  Whatever the word means, the circuit in the picture is definitely not a "combination" circuit.

Answer:

B. Parallel Circuits

Explanation:

A parallel circuit is constructed by connecting the terminals of all the individual load devices so that the same value of voltage appears across each component. In a parallel circuit, charge divides up into separate branches such that there can be more current in one branch than there is in another.

hope i helped

Answer:

earlier when there is no pandemic ( corona virus ) then rarely people give time to fitness/ excercise routine. But now, because of pandemic many people give more enthusiasm in fitness . In India we are motivated to do yoga. In this case, our culture has been back u can say. Lot of people startted doing yoga . Because of fitness in this pandemic no one will feel isolated with this u will be healthy .

Explanation:

pls like it ️

The physical method of controlling microbial growth that applies pressure to water to create steam is called "autoclaving" or "sterilization by autoclave."

Autoclaving is a widely used method for sterilization in various industries, including healthcare, laboratories, and food processing. It involves subjecting materials or objects to high-pressure saturated steam at elevated temperatures. The combination of pressure and heat effectively kills microorganisms, including bacteria, viruses, fungi, and spores.

Autoclaves consist of a sealed chamber that can withstand high pressures, along with a source of heat and a means to generate steam. The process involves placing the items to be sterilized inside the autoclave chamber and then raising the temperature and pressure to the desired levels. The high-pressure steam penetrates the materials and destroys the microorganisms present, ensuring effective sterilization.

The typical conditions for autoclaving include temperatures ranging from 121 to 134 degrees Celsius (250 to 273 degrees Fahrenheit) and pressures between 15 and 30 pounds per square inch (psi). These conditions are maintained for a specified period, usually around 15 to 30 minutes, depending on the size and nature of the items being sterilized.

Autoclaving is advantageous because it provides a reliable and efficient method for achieving sterility. It can be used to sterilize a wide range of materials, including laboratory glassware, surgical instruments, medical equipment, media and solutions, textiles, and more. The high temperatures and pressure ensure thorough sterilization, and the process is relatively quick compared to other methods.

However, it is important to note that not all materials can be autoclaved, as some may be sensitive to heat or moisture. Additionally, certain biological substances, such as certain types of infectious waste or toxins, may require specialized treatment beyond autoclaving.

Overall, autoclaving is a highly effective method for controlling microbial growth by applying pressure to water to create steam. Its widespread use in various industries is a testament to its reliability and efficiency in achieving sterilization.

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Use Kepler's 3rd Law,

(a) The semi-major axis of the exoplanet's orbit is approximately 1.654 × 10⁶ km (or 11.05 AU).

(b) The mass of the planet is approximately 1.426 × 10²⁵ kg.

To find the semi-major axis of the exoplanet's orbit, we can use Kepler's 3rd Law equation:

T² = (G × Mₛ × a³) / (4π²)

Given:

Mₛ = 2.22 × 10³¹ kg (mass of the star)

T = 400 Earth days

(a) Semi-major axis in km:

First, convert the orbital period to seconds:

T_sec = 400 Earth days × 24 hours × 60 minutes × 60 seconds = 34,560,000 seconds

Next, substitute the known values into the equation:

a³ = (T² × (4π²)) / (G × Mₛ)

a³ ≈ (34,560,000² × (4π²)) / (G × 2.22 × 10³¹)

a³ ≈ 7.722 × 10¹⁸

Take the cube root of both sides to find the semi-major axis, as:

a ≈ ∛(7.722 × 10¹⁸) ≈ 1.654 × 10⁶ km

(b) Semi-major axis in AU:

To convert from kilometers to astronomical units (AU), divide the distance by the mean distance between the Earth and the Sun, which is approximately 149.6 million km:

a_AU = (1.654 × 10⁶ km) / (149.6 million km/AU)

a_AU ≈ 11.05 AU

To find the mass of the planet, M_p, we can use the conservation of angular momentum equation:

M_p = (2π × a × Mₛ × vₛ) / T

Given:

vₛ = 39 m/s (velocity of the star)

Substituting the known values into the equation:

M_p ≈ (2π × 1.654 × 10⁶ km × 2.22 × 10³¹ kg × 39 m/s) / (34,560,000 seconds)

M_p ≈ 1.426 × 10²⁵ kg

Therefore, the semi-major axis of the exoplanet's orbit is approximately 1.654 × 10⁶ km (or 11.05 AU), and the mass of the planet is approximately 1.426 × 10²⁵ kg.

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Answer:

Mass and Its stage of life

Explanation:

All stars are born with the same basic composition, yet stars can look quite different from one another. Its mass and its stage of life.

Here work done by the car against the force of air in each second denotes the power needed to overcome air resistance at that particular speed. The power of engine is 28 kW.

The power of an object denotes the rate of performing the work. It is defined as the work done in unit time. The SI unit of power is Watt (W) which is also called joules per second.

Power = Resistance × Speed of vehicle

Here the air resistance is found to be 700 N. Then,

Power = 700 × 40 = 28000 N m/s = 28 kW

Thus the engine power is 28 kW.

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Answer:

33 hours

Explanation:

7.5 + 6.5 = 13 + 1

14 + 10 = 24

9= 6+3

24 + 6 = 30

30+3= hours

Answer:

It's Newton's third law. For every known reaction, there is a equal and opposite reaction.

Explanation:

The mallet which hits the ball with an action force, the ball exerts a reaction force on the mallet as explained by the Newton's third law. Thus, the correct option is 3.

Newton's third law states that for every action (force) in nature there is an equal and opposite force or reaction. An example of third law of motion is that the mallet hits the ball with an action force, then the ball exerts a reaction.

If an object A exerts a force on the object B, then object B must also exert a force of equal magnitude and in the opposite direction back on object A. The law represents a certain symmetry in the nature that the forces always occur in pairs, and one body cannot exert a force on another without experiencing any kind of force itself.

Therefore, the correct option is 3.

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