A water droplet of mass m = x10-12 kg is located in the air near the ground during a stormy day. An atmospheric electric field of magnitude 6.00 x 103 N/C points vertically downward in the vicinity of the water droplet. The droplet remains suspended at rest in the air. What is the sign and electric charge on the droplet?

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

What is a monomer? how do they form a ploymer from the view point of chemical bonding?