01.04.2021

Write a hypothesis about the effects of magnetic and electric fields. Use the format of "if . . . then . . . because . . ." and be sure to answer the lesson question: "How can magnetic and electric fields be demonstrated?"

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19.10.2022, solved by verified expert
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Step-by-step explanation:

Electric and magnetic fields are found in electromagnetic waves. These are perpendicular ro each other .

They do not require material.medium to propagate.

To demonstrate that an electric current ( moving electric charge) generates a magnetic field, all we need do is simply place a magnetic compass next to a wire in a circuit. When current is passed through the wire, the compass will deflect,

 indicating the presence of a magnetic field circling the wife.

Electric field lines always point away from a positive charge and towards a negative point. In fact, electric fields originate at a positive charge and terminate at a negative charge. Also, field lines never cross each other. If they do, it implies that there are two directions for the electric field at that point.

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Biology
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P Answered by Master

Well, I was taught about hypotheses differently but I'll try.

"If magnetic fields can repel and attract electric charges, then electric fields can exert a force on a positive charge because the electric field is radially outward from a positive charge and radially in toward a negative point charge."

I hope I don't mess up your grade and if I do then I'm extremely sorry.

Physics
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P Answered by Master

The correct answer (sample response) is:

If a magnetic or electric field is present, materials that generate these fields will interact by attracting or repelling each other because of their magnetic or electric properties.

The statement is a hypothesis about the effects of magnetic and electric fields. Use the format of "if...then...because..." and be sure to answer the lesson question: "How can magnetic and electric fields be demonstrated?"

Include the following in your hypothesis:

• The "if" part of your hypothesis refers to the presence of an electric or magnetic field.

• The "then" part of your hypothesis refers to a measurable attraction or repulsion.

• The "because" portion of your hypothesis connects the ideas of electromagnetic properties.

|Huntrw6|

Biology
Step-by-step answer
P Answered by Master

Well, I was taught about hypotheses differently but I'll try.

"If magnetic fields can repel and attract electric charges, then electric fields can exert a force on a positive charge because the electric field is radially outward from a positive charge and radially in toward a negative point charge."

I hope I don't mess up your grade and if I do then I'm extremely sorry.

Physics
Step-by-step answer
P Answered by Specialist

The correct answer (sample response) is:

If a magnetic or electric field is present, materials that generate these fields will interact by attracting or repelling each other because of their magnetic or electric properties.

The statement is a hypothesis about the effects of magnetic and electric fields. Use the format of "if...then...because..." and be sure to answer the lesson question: "How can magnetic and electric fields be demonstrated?"

Include the following in your hypothesis:

• The "if" part of your hypothesis refers to the presence of an electric or magnetic field.

• The "then" part of your hypothesis refers to a measurable attraction or repulsion.

• The "because" portion of your hypothesis connects the ideas of electromagnetic properties.

Chemistry
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P Answered by PhD
Answer: chalcogens.
Explanation: Strontium is an alkaline earth metal, it always exhibits a degree of oxidation in its compounds +2.
Chalcogens are a group of 6 chemical elements (oxygen O, sulfur S, selenium se, tellurium te, polonium Po) that have an oxidation state of -2 => Chalcogens will combine with strontium in a ratio of 1:1.
Chemistry
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P Answered by Master

Calcium (Ca)(On the periodic table, ionization energy increases as you go up and to the right of the periodic table)

Calcium (Ca)(On the periodic table, ionization energy increases as you go up and to the right of the
Chemistry
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P Answered by PhD

glycoproteins

Explanation:

A positive reaction for Molisch's test is given by almost all carbohydrates (exceptions include tetroses & trioses). It can be noted that even some glycoproteins and nucleic acids give positive results for this test (since they tend to undergo hydrolysis when exposed to strong mineral acids and form monosaccharides).

Chemistry
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P Answered by PhD

Answer:

Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:  

P×V = n×R×T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.

Explanation:

In this case, you know:

P= 0.884 atm

V= ?

n= Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N 0.857 moles (where 28 g/mole is the molar mass of N₂, that is, the amount of mass that the substance contains in one mole.)

R=0.082Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N

T= 328 K

Replacing in the ideal gas law:

0.884 atm×V= 0.857 moles× 0.082Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N ×328 K

Solving:

Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N

V= 26.07 L

The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.

Chemistry
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P Answered by PhD
15 moles.Explanation:Hello,In this case, the undergoing chemical reaction is:Clearly, since carbon and oxygen are in a 1:1 molar ratio, 15 moles of carbon will completely react with 15 moles of oxygen, therefore 15 moles of oxygen remain as leftovers. In such a way, since carbon and carbon dioxide are also in a 1:1 molar ratio, the theoretical yield of carbon dioxide is 15 moles based on the stoichiometry:Best regards.

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