Find a model for simple harmonic motion if the position at t = 0 is 0, the amplitude is 3 centimeters, and the period is 2 seconds.

a. d=3cos(pi t)
b. d=2cos(3t)
c. d=3sin((pi/2)t)
d. d=3sin(pi t)

If you were to stage the play on which casablanca is based, how would you use lighting in your production? describe one scene from the film and the lighting it uses. would you change the lighting in any way for a stage production of the scene? why or why not?

Where is the photoshop flaw in this picture? a. the fish is too large, b. the head has been pasted on another persons body,c. the guy has no hands, d. the background has been altered.

What benefits are there to using an online filter app?