An object oscillates such that its displacement is x = (0.222m) ...

[Pea0909berry]

An object oscillates such that its displacement is x = (0.222m) sin(314. t) where t is in seconds.
 
  (a) In one period, the object moves what distance?
  (b) What is the frequency?
  (c) What is the position at t = 1.00 s?

Question 2

Consider a human heart rate of 80 beats per minute. If someone's heart beats at that rate over a 70-yr lifetime, how many times would it beat?
 
  A) 2.20  109
  B) 7.44  105
  C) 3.26  1010
  D) 2.95  109
  E) 1.78  107

[mtmmmmmk]

Answer to Question 1

(a) 0.888 m
(b) 50.0 Hz
(c) x = -0.0352 m

Answer to Question 2

D

[Pea0909berry]

TYSM

[bblaney]

Excellent