There is a meter stick balanced at the 50 cm mark. There is a mass of 200g hanging from the 25 cm mark. where would you hang a 500g mass to balance the meter stick?

How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?

The plum pudding model of the atom states that ?

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v