Two boxes are held together by a strong wire and attached to the ceiling of an elevator by a second wire (see diagram to the left). The mass of the top box is 14.2 kg; the mass of the bottom box is 10.4 kg. Assume that the acceleration due to gravity is 9.8 m/ s^2. Find the tension in the top wire (connecting points A and B)

The material that keeps its new shape after it is stretched is called?

To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin.answer in one word.part bfind e(r), the magnitude of the electric field at distance r from the point charge q.express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q.express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r

The strong nuclear force acts over a small distance than the electrostatic force. true or false