Adiver jumps a springboard above water when the diver leaves the springboard

Which best describes how johannes kepler developed his laws of planetary motion

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Modern weaponry has increased the number of deaths in wars and violent conflicts.