An electrostatic force exists between two +3.20 × 10−19 coulomb point charges separated by a distance of 0.030 meter. As the distance between the two point charges is decreased, the electrostatic force of

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g