Chemistry : asked on bryanna.owen

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

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? Please halp me without the sample response

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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

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? SETELAH ALES EED S

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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.

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Biology

Step-by-step answer

P Answered by Master

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

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

Physics

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? !

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.

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

LaToya uses 50 newtons (N) of force to pull a 500 N cart. Which statements are correct about calculating LaToya s mechanical advantage? Select all that apply.A. The input force is 50 N.B. The output force is 50 N.C. The input force is 500 N.D. The output force is 450 N.E. The mechanical advantage is 10.F. The mechanical advantage is 100.

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P Answered by Master

Answer:

Step-by-step explanation:

The input force is 50 N. But it will not create not any change. No mechanical advantage is observed.

Chemistry

Fiona claims that the diagram below shows simple machines, but Chad claims that it shows a compound machine. A man pushes a shopping cart up a ramp. Which statement best explains who is correct? Fiona is correct because less than three machines are shown in the diagram. Fiona is correct because the diagram shows two individual simple machines. Chad is correct because more than one machine is shown in the diagram. Chad is correct because the diagram shows two simple machines doing a job.

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P Answered by Specialist

Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation:
A mechanical device using which we can change the direction or magnitude of force applied is known as simple machine.
For example, in the given diagram there are two individual simple machines.
The machine helps in changing the direction or magnitude of force applied by the man. As a result, it becomes easy for him to carry different things easily from one place to another.
Thus, we can conclude that the statement Fiona is correct because the diagram shows two individual simple machines, is correct.
Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation

Chemistry

Based on the equation, how many grams of Br2 are required to react completely with 29.2 grams of AlCl3 (5 points)? 2AlCl3 + 3Br2 → 2AlBr3 + 3Cl2

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P Answered by PhD

Answer:

52.6 gram

Step-by-step explanation:

It is clear by the equation 2(27+3×35.5)= 267 gm of AlCl3 reacts with 6× 80 = 480 gm of Br2 . So 29.2 gm reacts = 480× 29.2/267= 52.6 gm

Chemistry

Which of the following will have a lower ionization energy than scandium

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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)

Chemistry

Give an example of a protein structure that would give positive test with Molisch’s Reagent

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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

what is the volume of a container that contains 24.0 grams of N2 gas st 328K and .884 atm?

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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.)