Awave travels through water at a speed of 3 m/s and has a frequency of 10 hz. what is the wavelength of the wave?

V=wavelength*frequency

3 m/s=wavelength*10 Hz

3m/s=10 Hz

wavelength= .3

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

3. dark matter

empty space could also be a simple vacuum