Solve each problem using dimensional analysis. evey number must have a unit. work must be shown.

DIstance:
the moon is 250,000 miles away from earth. how many feet is it from earth?

1 answer

To convert the distance from miles to feet using dimensional analysis, we can use the conversion factor that 1 mile is equal to 5,280 feet.

Given:

  • Distance to the moon = 250,000 miles

Conversion Factor:

  • 1 mile = 5,280 feet

Calculation:

We can set up the calculation using dimensional analysis:

\[ \text{Distance (in feet)} = \text{Distance (in miles)} \times \left(\frac{\text{feet}}{\text{mile}}\right) \]

Substituting the values:

\[ \text{Distance (in feet)} = 250,000 , \text{miles} \times \left(\frac{5,280 , \text{feet}}{1 , \text{mile}}\right) \]

Next, we perform the multiplication:

\[ \text{Distance (in feet)} = 250,000 \times 5,280 , \text{feet} \]

Calculating this gives:

\[ \text{Distance (in feet)} = 1,320,000,000 , \text{feet} \]

Conclusion:

The distance from Earth to the Moon is 1,320,000,000 feet.