11. Two point charges, initially 1 cm apart, are moved to a distance of 3 cm apart. By what factor
do the resulting electric and gravitational forces between them change?
03
3
9

Which feature of a heating curve indicates a change ofn state

The dot diagram represents the motion of the motorcycle as it moves from left to right

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