Arotating beacon is located 15 ft from a wall. if the distance from the beacon to the point on the wall where the beacon is aimed is given by a = 15|sec (2πt)| , where t is in seconds, find a when t = 0.37 seconds. round your answer to the nearest hundredth.

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?