What is the speed of a sound wave that takes 0.5 s to travel 750 m?
A) 3,000 m/s
B) 375 m/s
C) 1,500 m/s

Emagnitude of the electrical force acting between a +2.4 ×  10–8  c charge and a +1.8 ×  10–6  c charge that are separated by 0.008 m is    n, rounded to the tenths place.