which statement best describes the cause of this relationship between the luminosity of an agn and the luminosity of a normal galaxy?

Answer:

Explanation:

His top speed is a blip that occurs for less than the full time he was out. Below is a graph showing what he did from 1 o'clock to 9. He was walking from 1 to the point where starts walking faster and then back down again to 2. The line at 2 is longer than the triangular shape that shows where he speeded up. Then he went back down to 2 and continued at that speed until 9.

Obviously he spent more time at 2 than he did at 4 and therefore his average speed will less than the 4 speed.

Remember that average speed = total distance / total time.

Answer:

i had a different thing and i finished mine so i thought id try my best to help

Explanation:

So i had to write about something that motivated me

looking at myself in the mirror and hating how i looked. i was okay with that at first but when others around me started calling me over weight or "chubby" it go to me. and its motivated me to work out. ill fall behind and stop but then i just think about how that made me feel and i just work harder.

Thats what i had wrote

I really hope this is helpful to someone

Answer:

I’m motivated to go to college after high school for many reasons, both extrinsic and intrinsic. I’ve always enjoyed studying literature, cultural studies, and human behavior, which is why I’m looking at colleges that offer a literature program where I can major in global cultural studies and minor in psychology or sociology. This acts as an intrinsic motivator for me because I enjoy studying these subjects. Also, I want to pursue a career as a novelist, which acts as an extrinsic motivation in my decision to go to college.

Explanation:

PLATO answer

Answer:

55%

Explanation:

take efficiency=power output/power input multiply by 100%

The final temperature of water is equal to 50.9999°C

Given the following data:

To determine the final temperature of water:

Mathematically, quantity of heat is given by the formula;

\(Q=mc\theta\)

Where:

Substituting the given parameters into the formula, we have;

\(5000=2.38892 \times 10^{-2}\times 4186 \times \theta\\\\5000=100.0001912 \theta\\\\ \theta=\frac{5000}{100.0001912} \\\\ \theta=49.9999^{\circ}C\)

For the final temperature:

\(\theta = T_2 - T_1\\\\T_2 = \theta+T_1\\\\T_2 = 49.9999 + 50\)

Final temperature = 50.9999°C

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Short-term effects of volleyball training: Improved agility: Regular volleyball training enhances footwork, reaction time, and coordination, allowing players to move quickly and efficiently on the court.

Enhanced power and explosiveness: Volleyball training focuses on building strength, power, and explosiveness through exercises such as plyometrics and resistance training, enabling players to generate greater force during jumps and hits.

Increased skill proficiency: Consistent training drills and practice sessions refine technical skills like serving, passing, setting, and spiking, resulting in improved accuracy, control, and overall performance.

Long-term effects of volleyball training:

Enhanced physical fitness: Continuous training over time improves cardiovascular endurance, muscular strength, and flexibility, contributing to better overall fitness and stamina on the court.

Reduced injury risk: Regular training helps strengthen muscles, tendons, and ligaments, enhancing joint stability and reducing the likelihood of volleyball-related injuries such as sprains, strains, and tears.

Improved game intelligence: Extensive training and experience develop a deep understanding of volleyball strategies, tactics, and game dynamics, leading to better decision-making, anticipation, and positioning, resulting in a competitive edge during matches.

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The speed of sound in this air is 342.5 m/s. Option A is correct.

The speed of sound in air can be calculated using the formula:

v = d / t

where v is the speed of sound, d is the distance traveled by the sound wave, and t is the time it takes for the echo to be heard.

In this case, the distance traveled by the sound wave is twice the distance from the hiker to the cliff (since the sound has to travel to the cliff and then back again), so:

d = 2 x 685 m = 1370 m

The time it takes for the echo to be heard is given as 4.00 s.

Plugging these values into the formula, we get:

v = 1370 m / 4.00 s = 342.5 m/s

As a result, the sound speed in this air is 342.5 m/s. Option A is correct.

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Answer:

Completion between two organism is when they fight over resources inadvertently causing the use and destruction of recourses making it more scares. if they don't adapt they die out.

Answer:Sample Response: In any ecosystem, the availability of resources is often limited due to competition. Competition results when two organisms require the same limited resource, such as food, water, shelter, or sunlight.

Explanation:

Go with this

The gravitational force exerted on a star by a planet is equal to that exerted on the planet by the star and in the opposite direction.

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. This principle applies to the gravitational force as well. The force of gravity between two objects depends on their masses and the distance between them.

In the case of a star and a planet, both objects exert a gravitational force on each other. The force exerted by the star on the planet is equal in magnitude to the force exerted by the planet on the star. However, the direction of the forces is opposite. The star attracts the planet with a force, while the planet attracts the star with an equal force but in the opposite direction.

Therefore, the correct answer is: The gravitational force exerted on a star by a planet is equal to that exerted on the planet by the star and in the opposite direction.

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When an elastic collision happens, both the momentum and the kinetic energy are conserved. Therefore, in this collision, both the momentum and the kinetic energy are conserved. Thus, the correct option is:Kinetic energy and momentum are conserved.

What is the final speed uf of block 1? Express uf in terms of m1,m2, and uiThe initial momentum of the two objects is:m1uiBecause the two objects move in opposite directions after the collision, the momentum of the two objects can be written as:(m1 * uf) - (m2 * vf).

Because the collision is elastic, the kinetic energy of the two objects can be written as:1/2m1ui² = 1/2m1uf² + 1/2m2vf²Now the final speed of block 1 can be found by solving the above equation, which is:uf = √((2m1ui²)/(m1 + m2)). Part C. What is the final speed vf of block 2?Express vf in terms of m1,m2, and uiUsing the same above equations and solving for vf:vf = (m1/m2)ui - ufTherefore, the final speed of block 2 can be found by solving the above equation, which is:vf = ((m1 - m2)/(m1 + m2))ui.

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Answer:

a particular level of electical potential from a power source

Answer:

it is d all of the above your welcome

b. The skydriver has the fastest speed at 4 seconds statement best identifies her speed at each second.

The process by which friction slows something moving through air is known as air resistance.

The object's velocity, surface area, and shape all play a role in air resistance. Air density and resistance are affected by temperature, humidity, and altitude.

The greater the resistance, the greater the area and the greater the speed. The frequency at which air molecules come into contact with the object increases with speed. Air resistance increases as a result.

As a result, the sky driver's speed also increases as the air resistance of the 500N driver increases.

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(complete question)

A skydiver dives from an airplane. air resistance is measured each second following the skydiver’s jump.

Time after jump | Weight | Air Resistance

1 sec | 500 N | 200 N

2 sec | 500 N | 300 N

3 sec | 500 N | 400 N

4 sec | 500 N | 500 N

Which statement best identifies her speed at each second?

a. The skydriver has the slowest speed at 2 seconds

b. The skydriver has the fastest speed at 4 seconds

c. The skydriver has the slowest speed at 1 second

d. The skydriver has the fastest speed at # seconds

A point charge causes an electric flux of −1.0×103 Nm2/C to pass through a spherical Gaussian surface of 10.0 cm radius centred on the charge. the value of the point charge is approximately \(-8.85 * 10^-9 C\)Coulombs.

(a) To determine the flux passing through the surface when the radius of the Gaussian surface is doubled, we need to use Gauss's Law. Gauss's Law states that the electric flux through a closed surface is directly proportional to the charge enclosed by the surface.

In this case, we are given that the electric flux passing through the initial Gaussian surface is \(-1.0 * 10^3 Nm^2/C\). When the radius is doubled, the new radius becomes 2 times the original radius, or 2 × 10.0 cm = 20.0 cm = 0.2 m.

The flux passing through the new surface can be calculated using the formula:

Φ' = Φ × \((r'/r)^2\)

where Φ' is the new flux, Φ is the initial flux, r' is the new radius, and r is the initial radius.

Plugging in the given values:

Φ' =\(-1.0 * 10^3 Nm^2/C\) ×\((0.2 m / 0.1 m)^2\)

Calculating the expression:

Φ' = \(-4.0 * 10^3 Nm^2/C\)

Therefore, when the radius of the Gaussian surface is doubled, the flux passing through the surface becomes \(-4.0 * 10^3 Nm^2/C\)

(b) To determine the value of the point charge, we can use the formula relating electric flux and charge enclosed by the surface:

Φ = q/ε₀

where Φ is the electric flux, q is the charge enclosed by the surface, and ε₀ is the permittivity of free space.

Rearranging the equation:

q = Φ × ε₀

Substituting the given value for electric flux:

q = \(-1.0 * 10^3 Nm^2/C * 8.85 10^{-12} C^2/Nm^2\)

Calculating the expression:

q ≈\(-8.85 * 10^-9 C\)

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Answer:

-11,813.87N

Explanation:

According to coulombs law, the Force between the two charges is expressed as;

F = kq1q2/d²

k is the coulombs constant = 9*10⁹kg⋅m³⋅s⁻²⋅C⁻².

q1 = -0.00067 C

q2 = 0.00096 C

d  = 0.7m

Substitute into the formula:

F =  9*10^9 *  -0.00067 * 0.00096/0.7²

F = 9*10⁹*-6.7*10⁻⁴*9.6*10⁻⁴/0.49

F = -578.88*10⁹⁻⁸/0.49

F = -578.88*10/0.49

F = -5788.8/0.49

F = -11,813.87N

Hence the force between the two charges is -11,813.87N

Answer:

v = √ac×r

r = \(\frac{v^2}{ac}\)

Answer:

Explanation:

Sorry cant help

100 watts x 10 apparent brightness = 100 au. Hence we are 100 au far from the sun.

Distance is a numerical and sometimes qualitative measure of how far apart an object or point is. In physics and everyday use, the distance may refer to physical length or an estimate based on other criteria. Distance is the overall movement of an object, regardless of direction. The distance can be defined as the distance an object has traveled regardless of its start or end point.

Distance is defined as the magnitude or amount of displacement between two positions. Note that the distance between two points is not the same as the distance traveled between the two points. The traveled distance is the sum of the traveled distances between the two positions. Distance traveled is not a vector.

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Suns' gravitational pull​ prevents the planets in our solar system from floating away, therefore the correct answer is option D.

It is a structure in which the sun's attractive force causes all the planetary systems and celestial bodies to revolve around this.

The Sun is believed to be located in the system's center in the sun-centered concept upon which our Solar System is founded.

The primary factor that causes the planets in the solar system to revolve around the sun is gravity.

The sun's pull of gravity prohibits the planets in our planetary system from moving away, hence option D is the appropriate

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The work (or energy expended) by a force of one newton (N) operating over a distance of one metre is equivalent to one joule (J). A force of one newton causes a mass of one kilogram to accelerate by one metre per second (s) per second. So, one joule is equivalent to one newton metre (ratio 1:1).

Yes. Joules and newton meter are units of the same physical quantity.

A unit of measurement is a specific magnitude of a quantity that has been established and recognised by law or convention and is used as a benchmark for measuring other quantities of the same kind. A multiple of the unit of measurement can be used to express any other quantity of that type.

A length, for instance, is a physical quantity. A unit of length that represents a certain, predetermined length is the meter (symbol m). For instance, "10 meters" (or 10 m) actually refers to 10 times the fixed, specified length known as "meter."

We know that work done = force × displacement. Unit of work done is Joule and unit of  force × displacement is Newton-meter. Hence, they refers unit of same physical quantity.

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Velocity is a vector quantity that has both magnitude and direction. When Alice is running due West at 6m/s, her velocity can be represented as a vector of magnitude 6m/s in the direction of the West. Similarly, when she is running due East at 4m/s, her velocity can be represented as a vector of magnitude 4m/s in the direction of the East.

Since the directions are opposite, we can show the velocities as vectors in opposite directions by assigning negative signs to one of the velocities. For example, we can write:

Here, the negative sign indicates that the velocity of 4 m/s is in the opposite direction to the velocity of 6 m/s. The resulting velocity of Alice is the difference between the two velocities, which is:

Therefore, the velocity of Alice in opposite directions can be represented as a vector of magnitude 2 m/s in the direction of the West.

~ Zeph

The best way to describe sound levels is through a ratio scale.

The decibel scale, which measures sound levels, is best described as a ratio scale. While the decibel scale is logarithmic, it can be transformed into a linear ratio scale by using a reference point. By selecting a reference point as the softest sound the human ear can hear unaided (0 dB), we establish a meaningful zero point on the scale. Any sound level above this reference point can be expressed as a positive value, indicating its magnitude relative to the softest audible sound. The logarithmic nature of the decibel scale still holds, with each increase of 10 dB representing a tenfold increase in sound intensity. However, by anchoring the scale to a fixed reference point, we can now quantify and compare sound levels in a meaningful way, making it a ratio scale.

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Answer:

Time = 1.413 seconds.

Explanation:

Given the following data;

Force = 883N

Distance = 0.6m

Power = 375 Watts

To find the time;

First of all, we would find the work done by Antonio.

Workdone = force * distance

Workdone = 883 * 0.6

Workdone = 529.8 Joules.

Now, to find the time;

Time = workdone/power

Substituting into the equation, we have

Time = 529.8/375

Time = 1.413 seconds.

Therefore, it took her 1.413 seconds to complete the push-up.

Answer: D

Explanation:

An accelerating train *will* have net force. so its not A

B is also incorrect because mass is part of the a = f / m formula.

C is incorrect because net force with constant velocity is actually 0.

D is a correct statement though

Since the baseball is moving, it has kinetic energy.

Since the baseball has a certain height (it's not moving on the ground, it's moving above the ground), so it also has gravitational energy.

The ball itself has a certain temperature and has a molecular structure that holds energy, so the ball has internal energy.

And the ball has a certain deformation, that holds some elastic energy.

Therefore the correct option is B.

Both the force of "Hand on the book" and the force of "Earth on the book" are directed upward. The ground and the book are being drawn in toward the hand. As a result, the forces pulling on the hands are "Book on hand" and "Earth on hand."

Gravity, usually referred to as gravitation, is the unchanging force of attraction that binds everything together in physics. Being the weakest known force in nature, it has minimal effect on defining the inherent properties of everyday objects.

The force "Hand on the book" is directed upward, and the force "Earth on the book" is directed downward. The hand is being pulled toward the book and the earth.

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boat velocity relative to the ground is = 11.18 Km/h.

Full solution in pic.

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Answer:

Option B:

A child sitting on a swing.

Explanation:

When we hear the word oscillator, a good example is the pendulum bob of a grandfather clock. We can picture the motion to get a perfect understanding of its path of motion and relate it to other systems of motion in our everyday life.

An oscillator is a system that moves in such a way that it reverses its direction after a period of time. It can be seen as a "to-and-fro" motion.

From the options, a child sitting on a swing is the perfect example of an oscillating system because the child will be moving forwards and backwards, alternately reversing the direction of motion with time.

Since the lamp gives no light when the brightness control is at its lowest setting. The reason that the torch would still need a switch as well as the brightness control is because the switch can completely turn the lamp off, while the brightness control only adjusts the intensity of the light.

In the above case, there may be situations where it is necessary to completely turn the lamp off, such as when it is not needed or when it is being used in a place with sensitive equipment that could be affected by the light.

Additionally, the switch may be used to conserve energy by turning the lamp off when it is not needed.

In all, the switch allows the lamp to be turned off completely, while the brightness control adjusts the intensity of the light. Both the switch and the brightness control can be useful in different situations.

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It will take approximately 2.76 seconds to decrease the rotational speed of the cylinder by 20 rad/s.

To solve this problem, we can use the principle of torque and rotational motion. The torque acting on the cylinder can be calculated using the equation:

τ = Iα

where τ is the torque, I is the moment of inertia, and α is the angular acceleration.

Given:

Mass of the cylinder (m) = 200 g = 0.2 kg

Diameter of the cylinder (d) = 4.1 cm = 0.041 m

Radius of the cylinder (r) = d/2 = 0.041 m / 2 = 0.0205 m

Friction force (F) = 0.029 N

Angular acceleration (α) = -20 rad/s² (negative sign indicates a decrease in rotational speed)

Step 1: Calculate the moment of inertia (I) of the cylinder.

The moment of inertia of a solid cylinder rotating about its central axis is given by the equation:

I = (1/2) * m * r²

Substituting the known values:

I = (1/2) * 0.2 kg * (0.0205 m)²

\(I \approx 8.2 * 10^{-5} \text{ kg}\cdot \text{m}^2\)

Step 2: Calculate the torque (τ) acting on the cylinder.

The torque can be calculated using the equation:

τ = F * r

Substituting the known values:

τ = 0.029 N * 0.0205 m

\(\tau \approx 5.945 * 10^{-4} \text{ N}\cdot\text{m}\)

Step 3: Calculate the angular acceleration (α) using the equation:

τ = Iα

α = τ / I

Substituting the known values:

\(\alpha = \frac{5.945 * 10^{-4} \, N \cdot m}{8.2 * 10^{-5} \, kg \cdot m^{2}}\)

α ≈ 7.25 rad/s²

Step 4: Calculate the time required to decrease the rotational speed by 20 rad/s.

Using the equation:

α = Δω / Δt

where Δω is the change in angular speed and Δt is the time interval.

Rearranging the equation:

Δt = Δω / α

Substituting the known values:

Δt = 20 rad/s / 7.25 rad/s²

Δt ≈ 2.76 s.

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Answer:

i would like some more explanation i dont understand the question enough

Explanation:

Answer:

Its D.

Explanation: