If mass and radius of earth are doubled, then what of an object on the surface of the earth whose mass 10kg on the surface of the moon?

Explanation

To solve the problem, we need to analyze the effects of doubling the mass and radius of the Earth on the gravitational force experienced by an object. We will also determine the equivalent mass of an object that weighs 10 kg on the Moon when placed on the surface of the Earth.

### Step-by-Step Solution:

1. **Understand the Gravitational Force Formula**:
The gravitational force (F) acting on an object is given by the formula:
\[
F = \frac{G \cdot m \cdot M}{R^2}
...