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lions [1.4K]
2 years ago
12

An object has a mass of 12 kg. On Planet A, the object weighs 117.6 N. The force of gravity on Planet A is

Physics
2 answers:
Murljashka [212]2 years ago
7 0
  • Force=117.6N
  • Mass=12kg

using newtons law

\\ \sf\longmapsto Force=Mass\times Acceleration

\\ \sf\longmapsto Acceleration=\dfrac{Force}{Mass}

\\ \sf\longmapsto Acceleration=\dfrac{117.6}{12}

\\ \sf\longmapsto Acceleration=9.8m/s^2

lara31 [8.8K]2 years ago
7 0

Explanation:

Solution,

Given:-

Mass=12 kg

Weight=117.6 N

Now,

Acceleration due to gravity=Weight/Mass

=117.6/12

=9.8 m/s²

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Three identical resistors are connected in parallel. The equivalent resistance increases by 630 when one resistor is removed and
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Answer:

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\frac{1}{R_e}=\frac{1}{R} } +\frac{1}{R} } +\frac{1}{R} \\\frac{1}{R_e}=\frac{3}{R} \\R_e=\frac{R}{3}

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In the second circuit, two of the resistors are in parallel, so they are equivalent to:

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R''_e=R'_e+R\\R''_e=\frac{R}{2} +R\\R''_e=\frac{3R}{2}

The problem states that the difference between the equivalent resistances in both circuits is given by:

R''_e=R_e+630 \,\Omega

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\frac{3R}{2} =\frac{R}{3} +630\,\Omega\\\frac{3R}{2} -\frac{R}{3} = 630\,\Omega\\\frac{7R}{6} = 630\,\Omega\\\\R=\frac{6}{7} *630\,\Omega\\R=540\,\Omega

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