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Mashutka [201]
3 years ago
12

Can a physical change, change what a substance is

Physics
1 answer:
Elden [556K]3 years ago
7 0
No the substance will remain the same substance as before.
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Light reflected from a glass surface is polarized along the plane perpendicular to the glass surface. Please select the best ans
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What is the ratio of thicknesses of crown glass and water that would contain the same number of wavelengths of light?
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What is an example of frequency
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So  " 13 Hz "  means  13 per second.

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6 0
4 years ago
Read 2 more answers
Charge is distributed uniformly along a long straight wire. the electric field 2 cm from the wire is 20 n/c. the electric field
Serjik [45]

The electric field 4cm from the wire is

É = 10nc { }^{ - 1}

Given:

charge is distributed uniformly along a long straight wire.

electric field 2cm from the wire is 20n/c

To find:

electric field 4cm from the wire

what is electric field?

Electric field is the region around charge particle or charged body in which if another charge is placed it experiences electrostatic force.An electric field is the physical field that surrounds electrically charged particles and exerts force on all other charged particles in the field, either attracting or repelling them.

E   ∝ \frac{1}{r}

\frac{E}{É}  =  \frac{r2}{r1}

\frac{20}{ É }  =  \frac{4}{2}

É =  \frac{40}{4}

É = 10nc {}^{ - 1}

thus the electric field 4cm from the wire is

É = 10nc { }^{ - 1}

learn more about electrostatic force from here: brainly.com/question/28166144

#SPJ4

7 0
2 years ago
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