147 is equivalent to 1.47 grams
The period is the length of one cycle. The frequency is the number of cycles of a periodic function that occur therefore frequency is the answer.
Answer:
maybe u missplaced it somehow and it also would depend if you trust that person or not. some times that 'friend' can turn out to be fake but i don't mean it about ur friend. for now, u should just ask, there's no harm in that.