19. Which effect is used in a turbine to convert mechanical energy into electricity? Please explain.

A. Photosynthesis
B. Electromagnetic induction
C. Nuclear fission
D. Coalification

Answers

Answer 1

I think it’s b

A battery converts chemical energy into electricity, and a solar cell produces electricity from the sun's energy, but if you want to produce electricity from mechanical energy, you need an induction generator. These generators can be small enough to power a crank-style flashlight or large enough to energize entire cities, but all work on the principle of electromagnetic induction, discovered by Michael Faraday, the 19th-century English physicist and inventor. Today, induction generators running on a variety of fuels supply electricity for most of the world's population.

Faraday's induction experiment is probably one of the most important in physics, and it was a relatively simple one. He coiled a length of conductive wire around a circular core and connected the wire to a meter. He found that moving a magnet through the center of the circle caused current to flow in the wire. The current stopped when he stopped moving the magnet, and it flowed in the opposite direction when he reversed the direction of the magnet. He later formulated the law of electromagnetic induction, now known as Faraday's Law, which related the strength of the current to the magnitude of the change of the magnetic field, also known as magnetic flux. The strength of the magnet, the number of coils around the core and the characteristics of the conducting wire all influence calculations for real-world generators.

Whether located inside a household utility generator, your car or a nuclear power plant, generators generally incorporate the same features. They include a rotor with a hollow core that rotates around a stator. The stator is typically a powerful magnet, while the coils that carry electricity are wound around the rotor. In some generators, the coils are wound around the stator and the rotor is magnetized. It doesn't matter. Either way, electricity will flow.

Hope this helps:)


Related Questions

what is/are responsible for creating variation in climate and weather at different latitudes?

Answers

A. different levels of sunlight

Answer:

Varying amounts of sunlight falling over different latitudes is what is responsible for the variations in weather and climate

Explanation:

The greater the latitude of a given place means that it is farther away from the equator and hence the Sun's rays reach the place at a sharper angle thus causing the rays to be spread across a greater area. And hence a place which is very far away from the equator will have less heat than a place that is nearer to the equator. The Earth's axis as we know is tilted. This tilt is responsible for the variation in the amount of sunlight a latitude receives during different seasons.

What city does the prime meridian pass through

Answers

the answer is Greenwich, England.

What bodies of water surround north and south korea

Answers

The bodies of water that surround North Korea and South Korea are the Sea of Japan, Korea Strait, the East China Sea, the Yellow Sea, and the Bay of Korea.

Explanation:

The half in northern of the Korean peninsula is comprised of the country of North Korea and the southern part makes up the country of South Korea. On the western side of North Korea lies the Bay of Korea, and on the east lies the Sea of Japan.

The Yellow Sea lies to South Korea in west. To the south of South Korea, East China Sea, Korea Strait lies in the southeast and the east, Sea of Japan.

North and South Korea are surrounded by several bodies of water like

1. Yellow Sea (West): To the west of the Korean Peninsula lies the Yellow Sea. This body of water separates the Korean Peninsula from China, and it borders both North Korea and South Korea.

2. Sea of Japan (East Sea): To the east of the Korean Peninsula is the Sea of Japan, known as the East Sea in South Korea. This sea separates the Korean Peninsula from Japan.

3. Korea Strait (South): The Korea Strait lies to the south of the Korean Peninsula, separating it from the Japanese island of Kyushu. It connects the Sea of Japan to the East China Sea.

These bodies of water play significant roles in the geography, economy, and geopolitical dynamics of both North Korea and South Korea, influencing trade, transportation, and strategic considerations in the region.

Which is farther east newfoundland or puerto rico

Answers

Answer:

Newfoundland

Explanation:

Let's take a look at both locations and find their eastern-most point.

Newfoundland:

we'll take the capital (St. John's) in reference because it's pretty much the eastern-most point.

Latitude: 47.4815685

Longitude: -53.1085765

Now, let's look at Puerto Rico:

we'll take the Punta del Este, on the island Culebrita:

Latitude: 18.312056

Longitude: -65.220939

To see which is the farther East (we'll assume from continental USA), we need to look at the longitudes, which are the vertical lines on the globe.

Since Newfoundland is at -53 degrees, and Puerto Rico is at -65 degrees, Newfoundland is closer to the Longitude 0 (Greenwich), so it's the one farther East from the continental USA.

Newfoundland is farther east than Puerto Rico since its easternmost point has a lower longitude value (approximately 52.6 degrees West) compared to Puerto Rico's easternmost point (approximately 65.3 degrees West).

The question at hand is about the geographical position of Newfoundland and Puerto Rico in relation to longitude, particularly which location is farther east. Newfoundland, located in Canada, is part of the easternmost province of Newfoundland and Labrador. Its most easterly point is Cape Spear, which has a longitude of about 52.6 degrees west. On the other hand, Puerto Rico is a Caribbean island with its easternmost point, Punta Mulas, near a longitude of 65.3 degrees west. Since lower longitudinal values are farther east, Newfoundland is indeed farther east than Puerto Rico.

A student is using a map in which the features are distorted and the land size is more accurate near the equator.

Which type of map is the student using? Check all that apply.

globe
flat map
conic projection
Mercator projection
equal-area projection

Answers

Answer:

Mercator projection

Explanation:

Using a flat paper map to represent the sphere that  is our planet has always been a challenge.  The Mercator projection is one of the most common representation, although we know it is more accurate around the Equator line and the precision diminishes as you get closer to the poles.

There are other types of projections, correcting some issues, but with their own flaws too.  The only accurate representation of the planet is a globe, since it matches the shape of the planet.

I'm pretty sure one of the answers is Mercator projection.

What lake on the border with bolivia is the highest navigable lake in the world?

Answers

Answer: Lake Titicaca

Lake Titicaca is the highest navigable lake in the world, with an estimated age of 3 million years, located in the Andean high plateau in the central Andes (within the Collao plateau) at an average altitude of 3812 meters above sea level.

This lake is located between the territories of Peru and Bolivia, where 56% of its extension belongs to Peru and 44% to Bolivia, serving as a border between both territories. In addition, it has an average depth of 107 meters and is the largest body of freshwater in South America.

Answer:

Lake Titicaca

Explanation:

Lake Titicaca

Africanized honeybees are genetically engineered bees that escaped from a research lab in Brazil. The Africanized bees are more aggressive than native species and are slowly replacing native species in Brazilian rain forests. Which statement best explains competition between native species and Africanized honeybees?


Question 8 options:


The Africanized bees deplete the resources native bees need to survive.



The native species are not reproducing as fast as the Africanized bees due to parasites.



The two species occupy the same ecological niche and compete for abiotic factors only.



The Africanized bees kill the native bees.

Answers

Answer:

The Africanized bees deplete the resources native bees need to survive.

Explanation:

The two bees species occupy the same niche and hence compete for resources. Because the Africanized bees are more aggressive, they have an advantage and therefore outcompete the native bees for the same resources. Therefore, over generations more Africanized bees are able to pass their genes to the next generation than native bees.

Answer:

a

Explanation:

i took the test

The Earth has height, width, and depth. This means that it exists in _____ dimensions. A. four B. three C. two D. one Please select the best answer from the choices provided A B C D

Answers

ANSWER:

The height, depth and width within anybody signifies that the object on the particular element is three dimensional.

EXPLANATION:

The correct answer to the current question is three dimension because the earth has all three elements. If any one of the three dimension were missing the earth would be a two dimensional space. We would like flat bread or simple art drawn on paper if any of the given dimension was non existent.

Answer:

b

Explanation:

got it right on edge

Which details best describe this map? Check all that apply.

- shows isobars

- shows isolines

- shows types of precipitation

- was created for newspapers

- was probably used by meteorologists

Answers

Answer:

- shows isobars

- was probably used by meteorologists

Explanation:

The map that is presented is a map that was most probably made and used by meteorologists. It is a map that that shows isobars, thus it is a map that represents the air pressures across the US and Canada. We can see the air pressure zones, some of which high, some of which low. These maps are often used when the weather information is concluded about certain areas, as the air pressure is directly connected with the temperature, and the movement of the air masses.

Answer:

shows isobars

Explanation:

The disks of spiral galaxies appear blue because

Answers

the disks of spiral galaxies appear blue because:

spiral galaxies are still undergoing star formation

Hope this helps:)

In 1831, French explorer Jules Dumont d’Urville proposed dividing the Pacific Island region into three groups based on geography and culture. The island groups were __________.

Answers

Answer:

Melanesia, Micronesia, and Polynesia

Explanation:

Melanesia is a group of bigger islands located just NorthEast of Australia, that goes from New Guinea to Fiji.

Micronesia is a series of smaller islands located NorthEast of New Guinea that extend up to Wake and Kiribati.

Polynesia is a large collection of about 10,000 small islands forming roughly a triangle between New Zealand, Hawaii and Easter Island.

Answer:

The answer is B

Explanation:

What are the four reference points needed to calculate latitude

Answers

Answer:

the center of the earth, the north and south poles, the equator and the Prime Meridian.

Explanation:

To obtain a precise latitude, map makers use 4 universal well-known points of reference that make unanimity among the science community, to ensure consensus.

Those reference points are:

1.) the center of the earth: that is used to calculate the radius of the circles and the various angles to draw the latitude lines.

2). the north and south poles: since the latitude lines have to reach them, starting from the Equator.

3.) the equator: that's latitude 0, so it's a pretty important reference point.

4.) the Prime Meridian, as a perpendicular line for the latitude "rings" and other calculations.

And the same reference points are also used to calculate the longitudes as well.

Final answer:

To calculate latitude, four reference points are used: the equator, prime meridian, North Star (Polaris) for celestial navigation in the Northern Hemisphere, and the observer's horizon. Tools to measure these have evolved from astrolabes to sextants and GPS technology.

Explanation:

The question asks about the four reference points needed to calculate latitude, which involves understanding Earth's geometrical and astronomical features. The reference points necessary to determine one's latitude on Earth include:

The equator, which serves as the starting point for measuring latitude degrees north or south.

The prime meridian, which aids in the orientation of the global coordinate system.

The location of the North Star (Polaris) in the Northern Hemisphere for celestial navigation.

The observer's horizon, as the angle of Polaris above the horizon directly corresponds to the observer's latitude.

Techniques used to measure these points have evolved from simple tools like the astrolabe to advanced instruments like the sextant and GPS technology, which calculates a position in three dimensions using at least four satellites and principles of geometry.

What causes the thickness of the crust to vary?

Answers

We have several layers of crust but they separated because of the desity level differences. The lighter material cruet layers rose upwards and the heavier materials caused them to drop further down

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