Why does a dynamo produce no current when the cyclist has stopped ?
Please answer with explanation.

Will give the brainliest !!

The items that help to fully describe VOLTAGE in a parallel circuit are 3) Directly related to current, 6) Inversely proportional to resistance, 7) Also known as Potential difference, and 11) Directly related to voltage.

To learn more about  voltage, visit:

https://brainly.com/question/27861305

#SPJ11

Answer:

salt

Explanation:

it comes from sea water

Answer:

Salt

Explanation:

It’s not cinnamon ( I know because if the picture)

it’s not sugar (sugar is sweet not sour)

IT MIGHT BE SALT (it’s salt)

its nit diamond (diamond doesn’t have a taste?)

f0= square root of F/(m/L)/2L= square root of 200/0.010/2.00/2*2.00= 50 Hz. f=f0+deltaf. f=50+5= 55,45 Hz. f=f0= 50Hz.

both ends of the image and vibrates in the most basic manner while under tension. A mode of vibration consists of two unique components: first, a variation in the vibration over time; and, second, a variation in the motion across the structure's space. The oscillation frequency and any accompanying decay or growth rates are defined by the time variation.

The basic mode, also known as the first harmonic, is the simplest normal mode, where the string vibrates in a single loop and is designated by the number n = 1. The second harmonic refers to the second mode (n = 2) in which the string vibrates in two loops.

to know more about vibration here:

brainly.com/question/20999521

#SPJ4

The displacement of the ball is zero.

What is displacement?

The smallest distance between the initial and final position of an object.

What are the equations of motion?

There are three equations of motion that completely describes the motion of an object.

The first equation of motion gives the relationship between the initial velocity, final velocity, acceleration, and time.

The second equation of motion gives the relationship between the initial velocity, displacement, acceleration, and time.

The third equation of motion gives the relationship between the initial velocity, final velocity, acceleration, and displacement.

Given time, initial velocity, and acceleration, the displacement can be calculated using the second equation of motion. The second equation of motion is,

s=u*t+(1/2)*a*t^2

Here, u=25 m/sec, a=-25 m/sec and t=2.0 sec.

Put the values in the formula and calculate the displacement.

s= (25)*(2.0)+(1/2)*(-25)*(2.0)^2

s=50-50

s=0 m.

Hence the displacement of the ball is zero.

Learn more about displacement.

https://brainly.com/question/3243551

#SPJ4

Answer:

yeah i knowwwwwwwwwwwwww

Explanation:

Answer:

I sit by myself talking to the MOOOOOOOOONNNNNNNN

Explanation:

Answer:

4 m/s²

Explanation:

\(v {}^{2} = {u}^{2} + 2as \\ 0 {}^{2} = {20}^{2} + 2a(50) \\ a = - 4ms {}^{ - 2} \)

Therefore, deceleration = 4 m/s²

Answer:

iron (Fe), cobalt

(Co), and nickel (Ni) .

Answer:

right away because you should never speed

The ball will hit the ground after approximately 1.88 seconds and at a horizontal distance of approximately 34.15 ft away.

a. To find the position vector of the particle at time t, we can use the kinematic equation for motion with constant acceleration. The position vector ⃗r(t) is given by ⃗r(t) = ⃗r₀ + ⃗v₀t + 0.5⃗at², where ⃗r₀ is the initial position vector, ⃗v₀ is the initial velocity vector, ⃗a is the acceleration vector, and t is the time.

Plugging in the values, we have ⃗r(t) = (5, 0, 4) + (0, 0, 7)t + 0.5(-11, -1, -5)t², which simplifies to ⃗r(t) = (5 - 11t^2, -t, 4 - 5t^2). This gives the position vector of the particle at any given time t.

b. For the baseball, we can analyze its motion using projectile motion equations. The vertical and horizontal motions are independent of each other, except for the initial velocity. The vertical motion is affected by gravity, with an acceleration of -32 ft/s².

Using the given initial speed of 26 ft/s and the launch angle of 20 degrees, we can decompose the initial velocity into its vertical and horizontal components. The vertical component is 26 * sin(20°) ft/s, and the horizontal component is 26 * cos(20°) ft/s.

To find the time of flight, we can use the equation for vertical motion: y = y₀ + v₀yt + 0.5at². The initial vertical position is 40 ft, the initial vertical velocity is 26 * sin(20°) ft/s, and the vertical acceleration is -32 ft/s². Solving for t, we get t ≈ 1.88 seconds.

To find the horizontal distance, we use the equation x = x₀ + v₀xt, where the initial horizontal position x₀ is 0 ft (assuming the ball is thrown from the stands), the initial horizontal velocity v₀x is 26 * cos(20°) ft/s, and the time of flight t is approximately 1.88 seconds. Solving for x, we find x ≈ 34.15 ft.

Learn more about acceleration here:

https://brainly.com/question/30660316

#SPJ11

Answer:

Hello There!!

Explanation:

The machine can help you alot and do all your homework while you rest and let the homework machine do it and get good grades because of it with no worries but if the machine does it then you won't learn how to do them.

hope this helps,have a great day!!

~Pinky~

Answer:

The answer to your question is O chemical

Explanation:

Chemical potential energy

Batteries store energy in the form of chemical potential energy. This energy is converted into electrical energy when the battery is connected to an electrical circuit.

I hope this helps and have a wonderful day!

The fusion reaction in a newborn star primarily occurs in the core.

Hence, the correct option is C.

The core of a newborn star is the region where the conditions of temperature and pressure are sufficient to sustain nuclear fusion. It is in the core that the high temperatures and densities enable the fusion of hydrogen nuclei (protons) into helium nuclei, releasing energy in the process.

In the early stages of stellar evolution, a newborn star forms from a collapsing cloud of gas and dust. As the material in the core becomes denser and hotter due to gravitational contraction, the core reaches the necessary conditions for fusion to occur. At this point, the energy generated by nuclear fusion counteracts the inward gravitational forces, establishing a stable equilibrium and allowing the star to shine.

The radiation zone and the convection zone are other regions within a star, but they are not primarily responsible for the fusion reactions. The radiation zone is the region above the core where energy is transported primarily by photons through a process of radiation. The convection zone is the outermost layer of a star, characterized by convective currents that transport energy through the rising and falling of hot gas.

While fusion reactions occur in the core, the energy produced through fusion eventually radiates outwards through the radiation zone and the convection zone before being released into space as heat and light.

Therefore, The fusion reaction in a newborn star primarily occurs in the core.

Hence, the correct option is C.

To know more about fusion reaction here

https://brainly.com/question/28020465

#SPJ4

Answer:

pele

Explanation:

*at 17 won Brazils first world cup victory in 1958

*missed much of the '62 title defense to injury,

*led the charge with a Golden Ball-winning performance as the Seleção cruised to their third victory in four tries in 1970

*earning the nickname "O Rei" (The King) for his sublime efforts.

*Pelé is credited with 1,283 career goals, and while many of them came in semi-formal competition, the mind-boggling total emphasizes his celestial ranking in the game's history.

*Pelé was born Edson Arantes do Nascimento on October 23, 1940 in Três Corações, Brazil, the first child of João Ramos and Dona Celeste. Named after Thomas Edison and nicknamed "Dico," Pelé moved with his family to the city of Bauru as a young boy

*As an adolescent, Pelé joined a youth squad coached by Waldemar de Brito, a former member of the Brazilian national soccer team. De Brito eventually convinced Pelé's family to let the budding phenom leave home and try out for the Santos professional soccer club when he was 15.

*Pelé signed with Santos and immediately started practicing with the team's regulars. He scored the first professional goal of his career before he turned 16, led the league in goals in his first full season and was recruited to play for the Brazilian national team.

*The world was officially introduced to Pelé in the 1958 World Cup in Sweden. Displaying remarkable speed, athleticism and field vision, the 17-year-old erupted to score three goals in a 5-2 semifinal win over France, then netted two more in the finals, a 5-2 win over the host country.

The young superstar received hefty offers to play for European clubs, and Brazilian President Jânio Quadros eventually had Pelé declared a national treasure, making it legally difficult for him to play in another country. Regardless, Santos club ownership ensured its star attraction was well paid by scheduling lucrative exhibition matches with teams around the world.

btw this I copied and pasted so make sure to change wording

Answer:

lllllllllllllllllllllllllllllll

The astronaut is 80 years old (20 years old when he starts + 60 years spent traveling) when he arrives back on Earth.

A 20-year-old astronaut leaves the Earth and travels at a constant speed to a planet 10 ly away. He reaches it after 20 years have passed on Earth. He then turns around and comes back to Earth at the same speed. We have to identify the age of the astronaut when he arrives back on Earth.

Let's break down the problem into parts:

Distance between Earth and the planet = 10 ly

Time taken to reach the planet = 20 years

Speed of the astronaut is constant

Age of the astronaut when he starts his journey = 20 years

When the astronaut completes his journey to the planet, he has traveled 10 light-years at a constant speed. We can identify the speed of the astronaut as follows:

Distance = Speed × Time

10 ly = Speed × 20 years

Speed = 10/20 = 0.5 ly/year

The astronaut then returns to Earth from the planet, again at a constant speed. Since the distance from the planet to Earth is also 10 ly, the total distance traveled by the astronaut is 20 ly. We can use the same formula to identify the time taken for the astronaut to travel back to Earth:

Distance = Speed × Time

20 ly = 0.5 ly/year × Time

Time = 40 years

The total time taken by the astronaut is the sum of the time taken to reach the planet and the time taken to travel back to Earth:

Total time = Time taken to reach planet + Time taken to return to Earth= 20 years + 40 years= 60 years

So, the astronaut is 80 years old.

You can learn more about astronauts at: brainly.com/question/30578175

#SPJ11

When a light beam travels through a material with a refractive index different from that of vacuum or air, its wavelength and speed are altered. The refractive index of a material is the ratio of the speed of light in vacuum or air to the speed of light in that material.

In this case, the light beam has a wavelength of 340 nm in a material with a refractive index of 2.00. This means that the speed of light in the material is 1/2.00 = 0.5 times the speed of light in vacuum or air.

The relationship between the wavelength of light, its speed, and its frequency is given by the equation: c = λf where c is the speed of light, λ is the wavelength, and f is the frequency.

Since the speed of light in the material is 0.5 times the speed of light in air or vacuum, the frequency of the light remains the same, while its wavelength is reduced by a factor of 2.00: λ_material = λ_air/v_material = λ_air/2.00 Substituting the given value of λ_air = 340 nm, we get: λ_material = 170 nm

Therefore, the wavelength of the light beam in the material with a refractive index of 2.00 is 170 nm. This means that the light beam is strongly refracted when it enters the material, as it is bent towards the normal to the surface of the material due to the increase in its refractive index.

Know more about refractive index here:

https://brainly.com/question/29858469

#SPJ11

Answer:

that the sprinter ran like Usain bolt for 4 second

Answer:

The RGB color system is known as a natural color system because it closely mimics the way humans perceive and experience color in the physical world. "RGB" stands for Red, Green, and Blue, which are the primary colors used in this system.

The natural color perception in human vision is based on the activation of three types of cone cells in the retina, which are sensitive to different wavelengths of light. The RGB color system models this trichromatic vision by combining varying intensities of red, green, and blue light to create a wide range of colors.

When red, green, and blue light are combined at full intensity, they produce white light. By adjusting the relative intensities of each primary color, different hues and shades can be achieved. The RGB color model uses a numerical scale from 0 to 255 to represent the intensity of each primary color, allowing for a wide spectrum of colors to be displayed on electronic devices such as screens and monitors.

The RGB color system is commonly used in various digital applications, including photography, graphic design, and display technologies. It is considered "natural" because it closely aligns with human perception and can reproduce a wide range of colors that appear similar to what we see in the physical world.

It is most likely that the pressure is measured in atmospheres, the volume in liters, the number of moles in moles, and the temperature in Kelvin.

In the ideal gas law, the gas constant (R) is represented by different values depending on the units used. The value of 0.0821 L·atm/mol·K is one of the commonly used values for R when pressure is measured in atmospheres (atm), volume in liters (L), and temperature in Kelvin (K).
To determine what is most likely true about the variables in the ideal gas law, we need to look at the equation:

PV = nRT

- P represents the pressure of the gas in atmospheres
- V represents the volume of the gas in liters
- n represents the number of moles of gas
- R represents the gas constant
- T represents the temperature of the gas in Kelvin

Since the given value of the gas constant is 0.0821 L·atm/mol·K, it suggests that the variables in the ideal gas law are likely to be measured in the corresponding units (atm, L, mol, and K).

Learn more about pressure

https://brainly.com/question/29341536

#SPJ11

The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

To know more about damping ratios, refer here:

https://brainly.com/question/31463018#

#SPJ11

(b) Commelina

Explanation:

Both chasmogamous and cleistogamous are present in Commelina.

In commelina, the flowers have anthers and stigma hanging outside of the flower. Petals are colourful and contains scent and nectars to attract birds and insects. Both of these are present in commelina flowers.

Answer:

Commelina

Explanation:

During distillation, the composition of the liquid remaining in the distilling flask undergoes changes due to the separation of its components based on their boiling points.

Distillation is a process that utilizes the differences in boiling points of various substances to separate a mixture into its individual components. At the beginning of the distillation process, the liquid in the distilling flask contains a mixture of different substances with varying boiling points. As heat is applied to the flask, the liquid begins to vaporize. The component with the lowest boiling point, known as the more volatile component, will vaporize first and rise up the distillation apparatus.

As the distillation continues, the more volatile component is collected in the condenser and condensed back into a liquid, which is known as the distillate. This distillate is richer in the more volatile component and has a higher purity compared to the original mixture.

Meanwhile, the liquid remaining in the distilling flask becomes increasingly enriched with the less volatile components. These components have higher boiling points and require more heat to vaporize. They remain in the flask as the distillation progresses, resulting in a concentration of the less volatile components in the remaining liquid.

Ultimately, the composition of the liquid remaining in the distilling flask will be enriched with the least volatile components that have the highest boiling points. This separation process allows for the isolation and collection of different components of a mixture based on their boiling points and volatility, leading to the purification or separation of desired substances.

Know more about volatile here:

https://brainly.com/question/30905318

#SPJ11

The chief factor that determines what type of electromagnetic radiation that objects give off in the absence of a strong magnetic field is their temperature.

The radioactive activity refers to the energy that a atomic nucleus can release in a given period of time due to the emission of different types of radiation.

This activity (radioactive activity) increases as temperature rises due to a higher collision of subatomic particles that form molecules.

In conclusion, the chief factor that determines what type of electromagnetic radiation in the absence of a magnetic field is temperature.

Learn more about the radioactive activity here:

https://brainly.com/question/11117468

#SPJ1

Answer:

this statement is true because I looked it up

Answer:

-10.8m/s^2

Explanation:

a=change in velocity/change in time

-27 m/s/2.5=10.8m/s^2

or if its not negative

27m/s/2.5=10.8m/s^2

The correct option is c. The Cassini gap is associated with the planet Saturn.

The Cassini gap is a prominent gap in Saturn's rings that is located between the A ring and the B ring.

It is named after the Italian astronomer Giovanni Domenico Cassini, who first observed the gap in the 17th century.

The Cassini spacecraft, which orbited Saturn from 2004 to 2017, provided detailed images and measurements of the Cassini gap, revealing its intricate structure and dynamics.

The gap is maintained by the gravitational influence of the nearby moon, Mimas, which prevents the particles in the A ring from spreading out into the B ring.

To know more about Cassini gap refer here

https://brainly.com/question/32133915#

#SPJ11

A diverging lens has a focal length that has a magnitude of 33.0 cm. an object is placed 21.0 cm in front of this lens. The magnification will be  -12.833 cm

diverging lens = concave lens

focal length = - 33 cm

u = - 21 cm

magnification = image distance / object distance

using lens formula

1/v - 1/u = 1/f

1/v = 1/f + 1/u

    = 1/-33 -1/21

v   = -12.833 cm

A diverging lens has a focal length that has a magnitude of 33.0 cm. an object is placed 21.0 cm in front of this lens. The magnification will be  -12.833 cm

To learn more about magnification here :

https://brainly.com/question/3851549

#SPJ4

Answer:

Explanation: the table shows during an experiment

Gravitational forces are strongest between objects with identical masses,  claims are supported by the data. Option B is correct.

Newton's law of gravity states that each particle having mass in the universe attracts each other particle with a force known as the gravitational force.

Gravitational force is proportional to the product of the masses of the two bodies and inversely proportional to the square of their distance.

When mass increases and distance reduces, gravity rises. Gravity also lowers when the distance between two points grows and the mass decreases.

From the table, it is observed that gravitational forces are strongest between objects with identical masses,  claims are supported by the data.

Hence, option B is correct.

To learn more about Newton's law of gravitation, refer to the link https://brainly.com/question/9699135

#SPJ2

(a) As σ is increased, The minimum  angle will be "19.2°".

(b) The acceleration will be "0.91 m/s²"once the box has began to move.

(c) The speed will be "3 m/s" as the box slid a distance 4.7 m along the loading map.

According to the question,

Mass = 25.0 kg

Kinetic friction = 0.25

Coefficient of static friction = 0.35

(a) We know,

⇒ static friction = mg sine

⇒ mg cosine * u = mg sine

then,

tan A = u = 0.35

a = 19.2

Therefore, as α is increased,  the minimum angle at which the box starts to slip is 19.2°.

(b) We know that:

Kinetic friction = mgCos19.2 * 0.25

                        = 2.31m

and,

Net force downwards = mgSin19.2 -  mgCos19.2* 0.25

By substituting the values, we get

                                        = m(3.22-2.31)

                                        = 0.91m/s²

Therefore, As this angle, the acceleration once the box has begun to move at 0.91 m/s².

(c) since the box is sliding at a distance of 4.7 meter:

Thus,

The speed will be:

→ \(v^{2} - u^{2} + 2as\)

\(0 + 2* 0.91* 5\)

= 9.21

\(v = 3m/s\)

Therefore, at this angle, at 3m/s will the box be moving after it has slid a distance 4.7m along the loading ramp

Learn more about acceleration here:

https://brainly.com/question/12550364

#SPJ4

Answer:

63.01 kg is the mass of the student whose weight is 618 Newton

Mass of student is 63 kilogram (Approx.)

Given that;

Weight of a student = 618 Newton

Find:

Mass of student

Computation:

We know that;

Gravitational acceleration g = 9.8 m/s²

So,

Mass  = Weight / Gravitational acceleration

Mass of student = 618 / 9.8

Mass of student = 63.06

Mass of student = 63 kg (Approx.)

Learn more:

https://brainly.com/question/8426458?referrer=searchResults