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zhuklara [117]
3 years ago
10

When merging onto an expressway from an acceleration lane, you should

Physics
1 answer:
vladimir1956 [14]3 years ago
6 0
Make sure your lane is clear, merge onto and match the flow of traffic

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The substances listed on the left side of a chemical equation are the _____.
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A student is constructing an investigation on static electricity. The student has three balloons and rubs two of them on a piece
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Explanation:

As given, the student has three balloons and rubs two of them on a piece of wool. The rubbing of balloon on wool is the independent variable as it was done on two and not on the third as control.

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3. When the procedure is repeated with a third line how will it distinguish whether the location of the center of gravity is acc
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Consider this row in the periodic table of elements. Which element(s) are most likely to conduct electricity?
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A) lithium and beryllium

Explanation:

From the given row on the periodic table, only lithium and beryllium will conduct electricity.

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An electrically neutral model airplane is flying in a horizontal circle on a 2.0-m guideline, which is nearly parallel to the gr
amm1812

Answer:

q=3.5*10^-4

Explanation:

<u>concept:</u>

The force acting on both charges is given by the coulomb law:

F=kq1q2/r^2

the centripetal force is given by:

Fc=mv^2/r

The kinetic energy is given by:

KE=1/2mv^2

<u>The tension force:</u>

<u><em>when the plane is uncharged </em></u>

T=mv^2/r

T=2(K.E)/r

T=2(50 J)/r

T=100/r

<u><em>when the plane is charged </em></u>

T+k*|q|^2/r^2=2(K.E)charged/r

100/r+k*|q|^2/r^2=2(53.5 J)/r

q=√(2r[53.5 J-50 J]/k)                                          √= square root on whole

q=√2(2)(53.5 J-50 J)/8.99*10^9

q=3.5*10^-4

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2 years ago
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