Identify each wave interaction based on how it changes direction.___ The wave changes direction as it bends and scatters.___

The wave changes direction as it changes its speed.___

The wave changes direction at an angle equal to the angle of incidence.___

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?