A 15kg boulder is going 55 m/s West when it collides with an 8kg bolder going 3 m/s East. They smash together inelasticly. Ignoring friction and heat losses what is their combined velocity after the smash up

Atransverse wave is traveling on a string stretched along the horizontal x-axis. the equation for the vertical displacement y of the string is given by y = (1.8 x 10-3)cos[π(13x - 60t)], where all quantities are in si units. what is the maximum speed of a particle of the string

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap

What happens when you slowly pulled the carboard?