Problem 4: A ball is thrown upwards at an angle of 25° from the roof of a 20.0 m tall building and lands a distance of 25 m from the base of the building. Assume that it is in free-fall throughout. A) Determine the initial speed of the ball in m/s. B)Find the maximum height in meters that the ball reached base of the building. Assume that it is in free-fall through

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

explanation:

newton's third law, for every action there is an equal and opposite reaction.