Two Objects with Masses M₁ = 30,000 Kg and M₂ $\times$

question 2

Multiple Choice

Two objects with masses M₁ = 30,000 kg and M₂ = 70,000 kg are initially very far apart and at rest.If due to gravitational attraction the two objects attract each other,calculate their total kinetic energy when they are 100 km apart.

• A)1.4 \(\times\) 10^-3 J
• B)1.4 \(\times\) 10^-11 J
• C)1.4 \(\times\) 10^-6 J
• D)0.7 \(\times\) 10^-3 J
• E)0.7 \(\times\) 10^-6 J

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Definitions:

Good

An item or product that is produced and consumed to satisfy human wants or needs.

Proportional

An attribute of a relationship where changes in one variable are associated with consistent, proportional changes in another variable.

Flat Tax Structure

A tax system with a constant marginal rate, usually applied to individual or corporate income.

Percentage

A ratio or fraction out of 100 that is used to express how large one quantity is relative to another quantity.