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For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class, A survey was done on 26 students, and the distribution of total study hours per week is bell-shaped with a mean of 13 hours and a standard deviation of 3.4 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between hours and hours on Statistics each week b) 95% of the students spend between hours and hours on Statistics each week. c) 99.7% of the students spend between hours and hours on Statistics each week.O The charge qenc must be all the charge lying within the Gaussian surface. If the net flux through a Gaussian surface is zero it is certain there are no charges enclosed within the Gaussian surface. O The electric field E in the integral is due only to the charge qenc O Gauss' Law calculates the electric field only at the location of the Gaussian surface. O The charge qenc must be all the charge lying on the Gaussian surface. O Gauss's law holds only for symmetric charge distributions. O A Gaussian surface must be a closed surface (must cover a volume). O A Gaussian surface is a virtual surface used only for calculations. O A Gaussian surface must be a conductor. O The area vectors on the Gaussian surface must all be in the same direction as the electric field on the surface. O The charge qenc must be all the charge in the problem.Question 6 4 pts Gaussian surfaces A and B enclose the same positive charge +Q. The area of Gaussian surface A is three times larger than that of Gaussian surface B. The electric flux through Gaussian surface A is O equal to the flux of electric field through Gaussian surface B. O unrelated to the flux of electric field through Gaussian surface B. O nine times larger than the flux of electric field through Gaussian surface B. O three times larger than the flux of electric field through Gaussian surface B. O three times smaller than the flux of electric field through Gaussian surface B.4. The figure has two spherical shells and three different possible gaussian surfaces. If both shells have a charge of 5nC what is the electric field at the innermost gaussian surface? 10 9 -SR Shell O R ER Gaussian surface