Period: Time it takes to complete a cycle, it takes 0.5s to complete a cycle
Frequency: Number of cycles in a second. Since 0.5s = 1 cycle, 1s=2 cycles
Period is 0.5s, frequency is 2
Answer:
speed is defined as distance travelled per unit time
The answer is A. With modern technology we have found that climate is much more than just the average temperature