A suspended pith ball possessing +10uC of charge is placed 0.02 m away from a metal plate possessing -6uC of charge. What is the force on the negatively charged object? a 3220 N b 1350 N e -2789N

Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.

An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?