Need help on easy questions from phy 105

1. Jun 3, 2004

what is the equation for a period on a pendulum? and what is the answer to this:

Two waves of equal amplitude and wavelength of .8m travel in a string in opposite directions with speeds of 250 m/s. if the string is 2.0 meters long, how many segments of standing waves are set up in the string?

I need an answer in the next 15 minutes, i need a miracle!

beau

2. Jun 3, 2004

Blistering Peanut

Simple Pendulum: $$T = 2 \pi \surd({l \over g})$$

Last edited: Jun 3, 2004