Standing on the roof of a (42.0+a) m tall building, you throw a ball straight up with an initial speed of (14.5+b) m/s. if the ball misses the building on the way down, how long will it take from you threw the ball until it lands on the ground below? give your answer in seconds and round the answer to three significant figures.

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.