Aball experiences an impulse of 200 n over 2 seconds, and has a change in velocity of 20m/s. what is its mass

When can u say there is no solution for a system of linear inequalities? explain your answer and show with a system and graph

Find the ratios of the corresponding sides

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap