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puteri [66]
2 years ago
5

A graph here shows the displacement of an adult that left their house, realized that they forgot to lock the door, and then retu

rned home to secure the lock. Interpret the graph and select the statements that are supported by the information here. Select ALL that apply.
A) The total displacement is zero.
B) The person walked more quickly to return home.
C) The walker turned began to return home at 6 seconds.
D) The person turned around to return home at 11 seconds.
E) The person paused to think about if they locked the door between 6 and 11 seconds

Physics
1 answer:
Effectus [21]2 years ago
8 0

the person paused to think about if they locked the door between 6 and 11 seconds

the person turned around to return home at 6 seconds

the total displacement is 0

Explanation:

i took the test

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Three-point charges are arranged on a line. Charge q3 = +5.00nC and is at the origin. Charge q2 = -3.00 nC and is at x = 5.00 cm
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Answer:

Explanation:

Given

Charge q_3=+5\ nC is placed at origin

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Charge q_1 is Placed at x=2.5\ cm

charge q_1 must be positive so as to balance the force on charge q_3

Force on q_3 due to q_1 is

F_{31}=\frac{kq_1q_3}{r^2}

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F_{31}=\frac{kq_1q_3}{(2.5)^2}

Force on q_3 due to q_2 is

F_{32}=\frac{kq_3q_2}{r^2}

here r=5\ cm

F_{32}=\frac{kq_3q_2}{(5)^2}

F_{31}=F_{32}

\frac{kq_1q_3}{(2.5)^2}=\frac{kq_3q_2}{(5)^2}

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q_1=3\times (\frac{2.5}{5})^2

q_1=3\times \frac{1}{4}

q_1=0.75\ nC

                                                                   

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Explanation:

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