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3 years ago

What do scientists base their classification of rocks on

1 answer:

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In this exercise you will examine some common igneous, sedimentary andmetamorphic rocks, and learn to classify them. CLASSIFICATION The classification of rocks is based on two criteria, TEXTURE and COMPOSITION.

Thanks!

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Why is the United States considered a multiethnic country?

kirza4 [7]

I am pretty sure it’s all the above

6 0

3 years ago

Read 2 more answers

Which of the following statements are true for electric field lines? Check all that apply. Check all that apply. Electric field

Scilla [17]

Answer:

Electric field lines point away from positive charges and toward negative charges. True

Electric field lines are continuous; they do not have a beginning or an ending. False

Electric field lines can never intersect. True

Electric field lines are close together in regions of space where the magnitude the electric field is weak and are father apart where it is strong. False

At every point in space, the electric field vector at that point is tangent to the electric field line through that point. True

Explanation:

Electric field lines point away from positive charges and toward negative charges. Always the field lines go to negative charges and leave from positive charges.

Electric field lines are continuous; they do not have a beginning or an ending. False

Because the field lines starts at positive charges and ends in negative charges.

Electric field lines can never intersect. True

It can not intercept the field lines because in that point the the field would have two directions. Besides, in that point the real value of the field should be found adding both field lines.

Electric field lines are close together in regions of space where the magnitude the electric field is weak and are father apart where it is strong. False

This fact is opposite to that so the regions of space where the magnitude the electric field is weak the lines are father apart and where the field is strong the lines are close together.

At every point in space, the electric field vector at that point is tangent to the electric field line through that point. True

This statement correspond to the definition of the field line.

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3 years ago

A concave mirror forms a real image at 25 cm from the mirror surface along the principal axis. If the corresponding object is at

Kryger [21]

Answer:

7.143cm

Explanation:

4 0

4 years ago

Considering the symmetry of the charge distribution, determine the symmetry of the electric field and choose one of the followin

BaLLatris [955]

Answer:

my name jeff hahahhahahahahahhahhahhahhahhahhah the correct a

Explanation:

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4 years ago

Please help wave number 3

ELEN [110]

Hello!

In Wave 3, there are 40 waves in the wave train. To find the Wavelength of the wave, you'll need to use a ruler to find the measure of the wave in centimeters (I can't really measure the wave because I would be measuring a picture and I wouldn't know if I was accurately measuring the wave), but I would estimate it to be about 2cm long. For the amplitude, I am not certain on what the amplitude would be. I could only manage to find the amount of wave sand the estimated length.

I hope this helps!

7 0

3 years ago