particles a b c and d with masses m a equal to M M B equal to m m c equal to 3 cm and MD equal to Forum at the corners of a square they have accelerations of equal magnitude with directions as shown. the acceleration of the centre of mass of the particles is

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

pe = weightxheight = 2000x1000=2,000,000joules

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.

compass can be used day and night, cloudy or sunny