Suppose you have a box one meter cach direction. the temperature of the box is 300k. what is the luminosity? ( watt of the box is sooer long in cach direction. there are 6 sides to the box). a. 220 watts b. 275 watts c. 2750 watts d. 22,000 watts e. 39,500 watts

Why are graphs useful when interpreting data

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

What are the dimensions of the cross section that passes through the points a, f, g, and d?