Question1
Two metal balls A and B of negligible radius are floating at rest on Space Station Freedom between two metal bulkheads, connected by a taut non conducting thread of length 2.00 m. Ball a carries charge q and ball B carries 2q. Each ball is 1.00 m away from a bulkhead. (a) If the tension in the string is 2.50 N, what is magnitude of q?
Question2
Let vector B = 6.00 m at 60.0°. Let vector C have the similar magnitude as vector A and a direction angle better than that of vector A by 20.0°. Let vector A ·vector B = 24.0 m2 and vector B ·vector C = 39.0 m2. Find out vector A (find the magnitude and the angle)