Spherical particles of density 2.0 g/cm3 are shaken in a container of water (viscosity = 1.0 ´ 10-3 nÃs/m3). the water is 8.0 cm deep and is allowed to stand for 30 minutes. what is the radius of the largest particles still in suspension at that time?

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

Why is the use of carbon-14 limited