What is the equivalent resistance if you connect three 10.0 resistors in parallel?

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.

It is really hard for me right know

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?