Write the Word or Phrase That Best Completes Each Statement $$I = 30 \sin ( 50 \pi t )$$

Essay

Write the word or phrase that best completes each statement or answers the question.
-The current I, in amperes, flowing through an ac (alternating current) circuit at time t, in seconds, is $$I = 30 \sin ( 50 \pi t )$$ What is the amplitude? What is the period?
Graph this function over two periods beginning at t = 0.