How to calculate displacement, velocity, acceleration.

displacement = find the distance between the initial starting point of an object and the final position of the object

velocity, well there is a lot of ways to calculate this...

if the acceleration isn't constant, use the conservation of energy

if it is constant

the average velocity is = Δx/Δt

calculate intial velocity: Δx= Vi (t) + 1/2 a t²

and Vf² = Vi² + 2ad

use these 3 equations to find acceleration too

you might also need to use F=ma to find acceleration

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.

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true