A new wind farm that uses wind energy to generate electricity has to be set up in an area. Which of the following areas would be best suited to set up the wind farm? possible 1. Along the coast
2. In a forest
3. Neighboring a city
4. Near a coal mine

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

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.

What does the symbol (–hfus) indicate in a phase change?