Physics 205 1.
Given that A = 21 +33–5k, Ē = -1 -2] + 3k and Y = 41+ 5j - 2k
Find
a.Ā+ Ē +Y
b. (A-E).(E+)
c. (Ā - Y)*E
d. The angle between E and Y​

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?

Newtons view of arrangement of the universe

Which of these activities increases the amount of carbon in the atmosphere?