LU LIU 10.DW]
13. Two point charges are located at two of the vertices of a right triangle, as shown in the Figure
16.4. If a third charge -2q is brought from infinity and placed at the third vertex, what will its
electric potential energy be? Use the following values: a = 0.16 m; b = 0.45 m, and q = 2.0 x 10-5
C.
[-17 J]​

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.