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zalisa [80]
3 years ago
10

8. What is the S.l unit for mass? A. kg B. m/s2 D.N C. m/s

Physics
1 answer:
katrin2010 [14]3 years ago
3 0

Answer:

the answer is kg

Explanation:

because the s.i unit for mass is kilogram

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Answer:

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4.-Una atleta patea un balon (masa de 650gr y angulo de 45 grados) arriba de un edificio con una velcidad 21 m/s, el edificio mi
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Answer:

v = 25 m/s

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[A] Write an expression for the equivalent resistance of three resistors connected in parallel.[ no derivation needed]
anzhelika [568]

Answer:

1) R1 + ((R2 × R3)/(R2 + R3))

2) 0.5 A

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Making Rt the subject gives;

Rt = (R2 × R3)/(R2 + R3)

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Total resistance of circuit = R1 + ((R2 × R3)/(R2 + R3))

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We are given;

R1 = 7.2 Ω

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R_total = 12 Ω

Formula for current is;

I = V/R

I = 6/12

I = 0.5 A

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Thus, potential difference through R1 is;

V = IR = 0.5 × 7.2 = 3.6 V

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