Can I see the book you read for I can answer and it more info because your question doesn’t make sense
All what ? There's nothing to check, so there's nothing that applies.
The only things that affect the force of gravity between objects is the product of <em>their masses</em>, and the <em>distance and direction</em> between their centers. That's IT. Nothing else has any effect. Not even a steel, concrete, and Kryptonite wall between them.
Answer:
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Explanation: