A wave is travelling at 3000 m/s has a wavelength of 1 m. a) Calculate the frequency of the wave.
b) Calculate the time period of the wave.
c) How many complete wave cycles will occur in:
i. 1 second
ii. 10 senconds
iii. 1 minute

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?