In: Physics
(a) Using the definition of the scalar product, find the angles between the following pairs of vectors.
A = 2 i + 3 k
and B = - 3 i - 3
j - 5 k ___°
A = - 5 j and B
= - 3 i - 4 j -
k ___°
A = 5 i + 5 j
and B = 4 i + 4
j + 2 k ___°
(b) For A = 2 i + j - 3 k, B = - 2 i + 5 j + 3 k, and C = 2 j - 3 k, find C·(A - B) to three significant figures. ___