Question

2) The distance between the sun and the earth is about 1.5 x 10 to the power of 11m. Express this distance with an si prefix and in kilometers.

3)The average mass of an automobile in U.S is about 1.440 x 10 to the power of 6 g. Express this mass in kilograms.

Answer 1

1000 meters = 1 Kilo meter
1000 grams = 1 kilo gram

so, remove three units in the "10 to the power of " thing you will be get it in Km or Kg