What two things must exist for an electric current to be produced?

Answers

Answer 1

Answer:

A supply of electric charges (electrons) which are free to flow, some form of push to move the charges through the circuit and a pathway to carry the charges.

Explanation:

Answer 2

Answer:

An electric potential between two bodies and a conducting path joining the bodies.

Explanation:

For an electric current to be produced, there must be an electric potential between two bodies and a conducting path joining the bodies. Two oppositely charged bodies won't produce a current unless there's a conduction path for the electrons to travel through.

PF


Related Questions

what job does the circulatory system /muscular tissue your organ systems do in the body​

Answers

Answer:   Your circulatory system is vital to your survival. Its function is to distribute blood and other nutrients to all your body’s organs and tissues. The small blood vessels called capillaries facilitate the exchange of oxygen and nutrients between your blood and the cells in your body.

Explanation:

Answer: for me it’s a multiple choice

Explanation:

Plzzz help Why are females in control of sexual selection and the evolution of males?

Answers

Answer:

What i can say is that WE ARE NOT.

Explanation:

Sexual selection is mostly our choices bc we have the uterus and body parts to produce babies. Some men take advantage of that hence rapxe. The evolution of males is sometimes in our control bc we are trying to teach them not to rapxe.

Tsunami waves are caused by earthquakes in the ocean floor. As the waves approach the shore, they usually grow in height. When this occurs, which aspect of the wave is changing?
A.
amplitude
B.
direction
C.
frequency
D.
speed
E.
wavelength

Answers

The aspect that is changing is A. amplitude. This is because amplitude is associated with height. Although Wavelength is the second close option, that is described to associate the distance

Answer:

LETTER A. AMPLITUDE

Explanation:

Got it right on the test

Which refers to the ends of a magnet where the forces are strongest?

attracting forces
opposing forces
magnetic fields
magnetic poles

Answers

Answer:

Magnetic poles would be your answer

Explanation:

The ends of a magnet where the forces are strongest are called magnetic poles. These are the points where attracting forces and opposing forces occur due to the interaction of magnetic fields. The correct option is D.

What are magnetic poles?

When talking about magnets, the ends where the forces are the strongest are referred to as magnetic poles. The poles are the points on a magnet where the magnetic field lines appear to originate or terminate. A magnet has two poles, north and south, and the magnetic field flows from the north pole to the south pole.

Magnetic fields are generated by electric currents. Opposing forces and attracting forces, which relate to magnets, describe how two magnets interact with each other. Two like poles (north and north, or south and south) repel each other because they have the same charge.

Two unlike poles (north and south) attract each other because they have opposite charges. The strength of these forces is determined by the distance between the magnets, as well as their sizes and orientations.

Therefore, the correct option is D.

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which of the following characteristics are common to poxviridae, herpesviridae, and hepadnaviridae

Answers

The following characteristics are common to poxviridae, herpesviridae, and hepadnaviridae: enveloped, double-stranded DNA viruses.

PoxviridaePoxviridae is a family of large, complex, enveloped DNA viruses that cause disease in vertebrates, including humans. The virus is the etiologic agent responsible for smallpox. The virus's genetic material is a double-stranded DNA molecule that is about 190,000 base pairs long.

HerpesviridaeHerpesviridae is a viral family that includes eight herpesviruses that infect humans. The viruses are enveloped and possess a linear, double-stranded DNA genome. Herpesviruses infect a wide range of vertebrates, including humans, and are known for their ability to establish lifelong latent infections in the host.HepadnaviridaeHepadnaviridae is a viral family that includes the hepatitis B virus, a virus that infects humans.

The virus has a Double-stranded DNA genome that is partially circular and is contained within an icosahedral capsid. The virus is enveloped, and the envelope contains a lipid bilayer that contains proteins that are encoded by the viral genome.

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Wavelength is 6.25x10^7 m whats the frequency

Answers

Answer:

\(\huge\boxed{\sf f=4.8 \ Hz}\)

Explanation:

Given Data:

Wavelength = λ = 6.25 × 10⁷ m

Speed of light = c = 2.998 × 10⁸ m/s

Required:

Frequency = f = ?

Formula:

\(\displaystyle f=\frac{c}{\lambda}\)

Solution:

Put the givens in the formula.

\(\displaystyle f=\frac{2.998 \times 10^8}{6.25 \times 10^7} \\\\f=0.48 \times 10^1\\\\f=4.8 \ Hz\\\\\rule[225]{225}{2}\)

How do the muscular and digestive systems work together to digest food?

Answers

Answer:

The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream.

Explanation:

Answer:

The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion.

Here is the table 1.1 explain the differences between the average numbers of mitochondria in the cells shown in table 1.1
Thankss

Here is the table 1.1 explain the differences between the average numbers of mitochondria in the cells

Answers

Answer:

which school are you from I may answer the questions

In the table, it is shown that the liver and the heart muscle cells contain the majority of the mitochondria, as they need more energy to carry out most of the vital reactions, and the sperm has less, while red blood cells have not a single.

What is the function of the mitochondria?

The mitochondria are an organelle in which energy is produced, such as ATP, and most eukaryotic cells have this organelle, however, there are some exceptions, such as mature red blood cells, which do not have this organelle and produce energy through glycolysis and the pentose phosphate pathway. More mitochondria will be in those cells that work more.

Hence, in the table, it is shown that the liver and the heart muscle cells contain the majority of the mitochondria, as they need more energy to carry out most of the vital reactions, and the sperm has less, while red blood cells have not a single.

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To form amino acids from the main chemicals in Twinkies, what needs to happen? They need to be broken apart into individual atoms and rebuilt through RNA translation. They need to be broken apart into individual atoms and rebuilt through RNA translation. These compounds are already amino acids that need no further construction. These compounds are already amino acids that need no further construction. They can't be used to form amino acids, but are used in cellular respiration to create ATP. They can't be used to form amino acids, but are used in cellular respiration to create ATP. Bonds between their elements can be broken and reformed to construct amino acids. Bonds between their elements can be broken and reformed to construct amino acids.

Answers

Answer:

They need to be broken apart into individual atoms and rebuilt through RNA translation.

Explanation:

To form an amino acid the individual elements needs to be joined together to form a compound.

An amino acid is made up of nitrogenous bases they are joined together to form codon and are translated to amino acid

The process of translation in deoxyribonucleic (DNA) acid helps to translate the bases into an amino acid. This amino acids are said to be the buildings blocks of protein they perform specific function in the body system.

____ is (are) formed from marine microorganisms.
A. Coal
B. Petroleum and natural gas
C. Silver
D. all of the above are formed from marine microorganisms
E. none of the above is formed form marine microorganisms

Answers

Answer: B. Petroleum and natural gas are formed from marine microorganisms.

Explanation: Petroleum and natural gas are formed from the remains of marine microorganisms like plankton and algae that lived millions of years ago. As these organisms died, their remains sank to the bottom of the ocean and were buried by sediment. Over time, the organic matter underwent chemical changes due to heat and pressure, transforming into hydrocarbons, which make up petroleum and natural gas. This process is called "diagenesis."

How does island biogeography decrease ecological tolerance?

Answers

The more isolated an island is, the lower its species richness will be. An island's size also affects its biodiversity, since larger islands will have a wider variety of habitats, so species that arrive on the island will diversify to fill up the available niches.

Island biogeography is an ecological relationship, that refers to the distribution of organisms on islands. When the island is isolated it will have more species richness and decrease ecological tolerance.

What is ecological tolerance?

In evolution, ecology tolerance is defined as a defense trait that results in the retention of fitness that follows damage.

Whether this damage is incurred by biotic sources such as herbivores or parasites, or abiotic sources such as herbicide or drought.

The range of ecological tolerance can be understood by example of the hottest and the coldest temperature in which an individual can survive.

Thus, in this way, island biogeography decreases ecological tolerance.

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Write the procedure of stone grafting.

Answers

Answer:

Stone/epicotyl grafting is a simple, cheap and quick method of mango propagation with a success rate of 75-80%. For this purpose, stones should be sown in June-July on raised beds of size 1x3 m. the beds should e prepared by mixing soil and FYM in the proportion of 2:1.

Explanation:

Your welcome!

Brainlist Please! :)

12. What are the reactants of reaction A?
13. What are the products of reaction A?

12. What are the reactants of reaction A? 13. What are the products of reaction A?

Answers

The reactants of reaction A are monosaccharides and the products are disaccharides.

What is a dehydration reaction?

The most typical example of a dehydration synthesis process is the dehydration of carbohydrates, often known as the sugar dehydration reaction. This is because carbohydrates are mostly created by combining monomers to create disaccharides or polysaccharides.

Examples of the dehydration synthesis of carbohydrates include:

Maltose sugar is created by the dehydration synthesis of two glucose (C6H12O66) sugars (C12H22O11)By interacting with one another through dehydration synthesis, glucose and lactose sugars can be combined to create lactose.In order to create sucrose, glucose and fructose interact through dehydration synthesis.

Therefore, the reactants of reaction A are monosaccharides and the products are disaccharides.

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The shape of the earth’s orbit is known as______ it can change from almost a perfect circle to
The shape of earth's orbit is known as
elliptical (egg like).
O obliquity
O precession
O orbit
O eccentricity

Answers

Answer:

A.

Explanation:

Because the other ones do not make sense.

At which stage of the scientific process should a scientist look at experimental data from other scientists to set up a new experimental study?

Answers

Answer:

forming a hypothesis

Explanation:

a scientific explanation for a set of observations that can be tested in ways that support or reject it. It is an EDUCATED GUESS with a statement of outcome based on observations.

Collect information about the kind of waste produced in your house daily and how it is disposed off

Answers

Answer:

The different classes of waste produced in a house can be classified as follow: organic waste, liquid waste, solid waste and recyclable waste

Explanation:

In family homes, it is important to understand which are the types of waste in order to know how to dispose of them properly in an environmentally friendly way. First, liquid waste from the bathroom and kitchen is usually directed to the main sewer line or eliminated by septic tanks that serve as sewage collectors. Second, organic and recyclable waste is biodegradable, thereby this type of waste is usually disposed of in incinerators or landfills. Third, solid non-hazardous waste can be eliminated by compressing with mechanical systems and covered with earth to be finally compacted.

The carotenoid pigments of some phototrophs interact with ________ to reduce its toxicity.

Answers

The carotenoid pigments of some phototrophs interact with Singlet to reduce its toxicity.

Because carotenoids are fat-soluble substances, they are best absorbed when combined with fat. Cooking and chopping foods high in carotenes makes the nutrients more potent when they are absorbed into the bloodstream than some protein-rich foods and vegetables.

Xanthophylls and carotenes are the two main classes into which carotenoids are divided.

Carotenoids of both types have antioxidant effects. Some carotenoids can also be turned into vitamin A, which is necessary for human growth and health.

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Cellular membranes enclose a cell and its contents from its environment. Establish which of the
following comprises cellular membranes.

A. Lipids

B. RNA

C. DNA

D. Microsphere

Answers

Answer:

The function of segregating the interior of the cell enclosure to the outside is known to occur by the function of the plasma membrane. These molecules comprising the plasma membrane is none other than lipids. Highly enriched hydrophobic tails of lipids interact with other lipids in a typical bilayer arrangement to regulate and control gene expressive Molecular and other crucial ions from moving in.

Which of the following does not describe neuroglia cells?
They support the nervous system.
They are 60% of the nervous system.
They protect the nervous system.
They conduct nerve impulses.

Answers

Answer:

Explanation:

Key Points There are two kinds of neuroglia in the peripheral nervous system (PNS): Schwann cells and satellite cells. Schwann cells provide myelination to peripheral neurons. Satellite cells play an important role in modulating the PNS following injury and inflammation.

Endocrine system's role in puberty involves interaction:-Hypothalamus-Pituitary gland

Answers

The endocrine system plays a crucial role in the onset and progression of puberty through the interaction of the hypothalamus and the pituitary gland through the release of GnRH, LH, and FSH.

During puberty, the hypothalamus, which is located in the brain, secretes hormones known as gonadotropin-releasing hormone (GnRH). GnRH stimulates the pituitary gland, also located in the brain, to release two important hormones: luteinizing hormone (LH) and follicle-stimulating hormone (FSH).

LH and FSH are gonadotropic hormones that have specific effects on the gonads, which are the testes in males and the ovaries in females. In males, LH stimulates the production of testosterone by the testes, while FSH promotes the production of sperm. In females, LH triggers the release of an egg from the ovary (ovulation), and FSH stimulates the growth and development of ovarian follicles.

The hormones released by the hypothalamus and the pituitary gland initiate a cascade of hormonal events that lead to the development of secondary sexual characteristics, such as breast development in females and facial hair growth in males. They also regulate the menstrual cycle in females and sperm production in males.

The interaction between the hypothalamus and the pituitary gland in the endocrine system is vital for the timing and progression of puberty. Through the release of GnRH, LH, and FSH, they coordinate the production of sex hormones and the maturation of reproductive organs, marking the transition from childhood to sexual maturity.

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3.
c) Biotechhology
a) Pharmacology
Which one will be the correct sequence of the levels of organization of life?
a) Cell, organelle, molecule, organ, tissue, organ system, individual
b) Molecule, tissue, organelle, cell, organ system, organ, individual
c) Molecule, organelle, cell, tissue, organ, organ system, individual
d) Organ system, organ, tissue, cell, molecule, organelle, individual​

Answers

Answer:

Explanation:

option c molecule,organelle,cell,tissue,organ,organ system,individual

reason because i read this in grade 9

19-1 Which of the following is a flower used in food and medicine. Saffron ... What 4 flowers (bud or open flowers) are used for food.

Answers

1. A flower that is commonly used in both food and medicine is saffron (Option D).

2. Four flowers (bud or open flowers) are used for food: elderflower, hibiscus flower, lavender flower, and rose flower.

In addition to saffron, there are several other flowers that are used for culinary purposes. The first is the elderflower, which is often used to make syrup or cordial. The second is the hibiscus flower, which is used to make tea and can also be used to flavor jams and jellies. The third is the lavender flower, which is used to add a floral flavor to baked goods and drinks. Finally, the rose flower is also used in cooking and can be added to sweet or savory dishes for a unique flavor and aroma.

Your question is incomplete, but most probably your options for question number 1 were

A. Potato

B. Sugarcane

C. Papaya

D. Saffron

Thus, the correct option for question number 1 is D.

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How are inherited characteristics passed or through generations?
A. RNA
B. Teaching
C. Blood
D. DNA

Answers

Answer:

DNA

Explanation:

DNA is the genetic code that determines your characteristics and is passed on from your parents.

Answer: DNA

Explanation: teaching are u serious? you can have different blood types from your parents. RNA just no

What is the fundamental source of energy in the food you eat?
A.sun
B.sugar
C.photosynthesis
D.plants

Answers

Answer:

sun is the source of energy

It is sun.

Explanation:

As here we are talking about the fundamental source of energy in the food that we eat. As we all know that photosynthesis process or any thing is impossible without sun .So, sun is the fundamental source of energy in the food we eat..

A skier at the top of the slope has ________ energy.

Group of answer choices

kinetic energy

potential energy

velocity

speed

Answers

Answer:

Gravitational Potential energy so in your case potential energy.

Explanation:

The movement of genes from one population to another population is known as _____.

All answers are correct.

allele

gene pool

gene flow

Answers

The movement of genes from one group to another is referred to as gene flow.

The exchange of genetic information between populations is referred to as gene flow. This can occur through migration, where individuals move from one population to another and bring their genes with them, or through interbreeding between populations. Gene flow can have a significant impact on the genetic makeup of populations, introducing new alleles and changing the frequency of existing alleles in the gene pool.

Allele frequencies can change in local populations even while gene flow does not affect allele frequencies for a species as a whole. In the case of migration, the impact of the migrants on altering the genetic makeup of the resident population increases with both the number of migrants and the difference in allele frequencies between the resident and migrant populations.

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What happens to push blood out of the
heart?
A The heart muscle contracts to reduce
the volume in the heart chambers.
B The heart muscle relaxes to reduce
the volume in the heart chambers.
C The heart muscle contracts to increase
the volume in the heart chambers.
The heart muscle relaxes to increase
the volume in the heart chambers.

Answers

Answer:

A

Explanation:

The correct answer is A: The heart muscle contracts to reduce the volume in the heart chambers.

When the heart muscle contracts, it creates pressure that pushes blood out of the heart and into the arteries. The contractions are initiated by electrical signals that spread through the heart muscle, causing the heart muscles to contract in a coordinated manner. During the contraction, the ventricles (the two lower chambers of the heart) reduce in volume, which forces blood out of the heart and into the blood vessels. This process is known as systole.

After the heart has pushed the blood out, it relaxes to allow the blood to fill the heart again. During this relaxation phase, known as diastole, the heart chambers increase in volume, allowing blood to flow in from the veins. This cycle of contraction and relaxation allows the heart to pump blood efficiently and effectively throughout the body.

What effect has eukaryotic evolution had on cells? *


Answers

Answer:

greater adaptability!!

Explanation:

hope this helps :)

Review the mechanism of active transport. What molecule provides the fuel for the transport? Is an enzyme involved? Does the molecule transported across the cell membrane move from a region of high to low concentration or from low to high concentration?

Answers

In active transport, ATP provides its fuel with the help of an enzyme called ATPase. The molecule moves from low to high concentration.

Active transport is a type of diffusion in which there is a movement of molecules that takes place from the region of their lower concentration to the region of their higher concentration across the membrane with the help of energy pumps.

Active transport occurs in the cells of both plants and animals. In animals, it occurs at the site of axon membranes whereas in plants it takes place at the epidermal roots that are embedded in the soil. Sodium-potassium is the most common ATP pump in biological systems.

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Dayton and Newport are the same distance from the equator and they are both near the ocean How does the air temperature of Dayton compare to the air temperature of Newport? Why?

Answers

The air temperature of Dayton and Newport would likely be similar due to their similar distance from the equator and proximity to the ocean.

The temperature of a location is influenced by a variety of factors, including its distance from the equator, its elevation, and its proximity to large bodies of water. In this case, both Dayton and Newport are located at similar distances from the equator and near the ocean. As a result, their air temperatures would likely be similar, as they would experience similar patterns of air circulation and similar moderating effects from the nearby ocean.

The ocean has a moderating effect on air temperature because water has a higher specific heat capacity than land. This means that water takes longer to heat up and cool down than land does, so coastal areas tend to experience milder temperatures than inland areas. Additionally, the ocean can influence air circulation patterns, leading to more consistent temperatures in coastal areas. Therefore, it is likely that the air temperature of Dayton and Newport would be similar, although local factors such as elevation, prevailing winds, and cloud cover could still lead to some variation.

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WILL GIVE BRAINLIEST!!!!!Which would be used to solve this equation? Check all that apply.subtracting 3 from both sides of the equation multiplying both sides of the equation by 3 dividing both sides of the equation by 3 substituting 4 for p to check the solutionsubstituting 36 for p to check the solution Why was Cromwell's New Model Army so successful? Which waves carries the most energy? What is the role of central bank in monetary system? It is a mistake to think that Hobbes was an enemy of freedom.Give two arguments in favour of this claim, and two argumentsagainst it. What were two weaknesses of the First New Deal?A. It failed to end massive unemployment.B. It created a huge national deficit.C. It created tension within labor unions.D. It failed to properly regulate the banks.E. It caused people to distrust the banks. need to find what x and y are ? The product of (5+32) (5-32) is A box contains 35 gems, of which 10 are real diamonds and 25 are fake diamonds. Gems are randomly taken out of the box, one at a time without replacement. What is the probability that exactly 2 fakes are selected before the second real diamond is selected Look at Kowalski's article and Duncan's letter. Do these pieces affect you emotionally? Which parts? True or false? Unconventional monetary policies include massive lending to banks and open-market purchases of assets other than Treasury bills. Here is a list of numbers:-9, 18, -17, 7, 17, 17, 7, -17, -16, 3State the median. How do I graph y=6x-4? 5 cm 9 cm 13 cm What is Volume of the Rectangular Prism? determine which shipping alternative would be most economical to ship 160 boxes of parts when each box has a price of $200 and holding costs are 30 percent of price, given this shipping information: overnight, $340, two-day, $260, six-day, $180 The measurement system used by most scientists and engineers known as the international System ofUnits is represented by the two letters. Use the equation below to solve the problem that follows.2H2 (g) + O2 (g) 2H2O (g)When David reacts 13.8 grams of hydrogen gas with excess oxygen, 87.0 grams of water are formed. Calculate his percent yield of water. how many international cricket present time which of the following best describes a difference between generalist species and specialist species? responses generalists use a large range of resources, while specialists have a limited range of resources they use to survive. would iron and carbon from metallic bonds