[填空题]
Use Coulomb’s law to determine the 6/un xq4yvcic4d1 h1w magnitude and direction of the ed6t4tnv* )mz8ov7.4 :fzk*obrt hcedlectric field at points A and B tzh* kov *4c v8 od4n:md)6.7rbfttezin Fig. 16–57 due to the two positive charges $(Q\,=\,7.0\mu C\,)$ shown. Are your results consistent with Fig. 16–31b?
$E_A$ = $ \times10^{6 }\,N/C$
$\theta_A$ = $^{\circ}\,$
$E_B$ = $ \times10^{7 }\,N/C$
$\theta_B$ = $^{\circ}\,$
(16-51)
(16-31b)