two point charges each experience a 1-n electrostatic force when they are 2 cm apart. if they are moved to a new separation of 8 cm, what is the magnitude of the electric force on each of them?
2 n
1/8 n
1/16 n
1/4 n
1/2 n

Two identical 82 mg dust particles very far apart (pee 0) are moving directly toward each other at a speed of 3698 m/s. the charge on each is-719 ? c. determine how close they will get to each other. let k = 9x109 n-m2/c2 & ignore gravity.

Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.