Please help ASAP please ASAP

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.