Use the following information to answer the next two questions A rescue technician is raised and lowered by a device called a winch. The winch uses
an electric motor to raise and lower the rope that the rescue technician hangs from
The winch does 1.22x10^4 J of work to raise a technician 15.0 m toward a helicopter
above. It consumes 3.24x10^4 J of electrical energy to do this.
N to the rescue technician while
11. The winch applies a force of how much while raising her

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