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lubasha [3.4K]
2 years ago
8

Tho resistors or resistance 2 ohms 4 ohms are connected in Series and then in Parallel what is the ratio of their respective res

istance.​
Physics
1 answer:
LUCKY_DIMON [66]2 years ago
6 0

Answer:

9:2

Explanation:

Series connection

Rt = R1 + R2 = 2 + 4 = 6 ohms

Parallel connection

1/Rt = 1/R1 + 1/R2 = 1/2 + 1/4 = (2+1)/4 = 3/4

1/Rt = 3/4

===> Rt = 4/3 = 1.33 ohms

ratio of series to parallel

6÷4/3 = 6×3/4 = 9:2

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Vector A has y-component Ay= +15.0 m . A makes an angle of 32.0 counterclockwise from the +y-axis. What is the x component of A?
Gemiola [76]

Answer:

x-component=-9.3 m

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According to question

A_y=\mid A\mid cos\theta

Substitute the values then we get

15=\mid A\mid cos32

\mid A\mid =\frac{15}{cos32}=\frac{15}{0.848}

\mid A\mid=17.7m

tan\theta=\frac{perpendicular\;side}{Base}

tan32=\frac{A_x}{A_y}=\frac{A_x}{15}

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The value of x-component of A is negative because the vector A lie  in second quadrant.

Hence, the x- component of A=-9.3 m

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3 years ago
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Answer:

C

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Answer:

The speed of the skier after moving 100 m up the slope are of V= 25.23 m/s.

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g= 9,8 m/s²

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a= (280N - 24.5N) / 80kg

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t=√(2*d/a)

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V= 25.23 m/s

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2 years ago
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