Given the following velocity time graph of 7kg object what is the impulse during segment c (from35 to 55 seconds)

Which feature indicates that mars resides in the inner region of the solar system

Am i correct on these two physics questions?

Water flows through a garden hose which is attached to a nozzle. the water flows through hose with a speed of 2.19 m/s and through the nozzle with a speed of 19.8 m/s. calculate the maximum height (in m) to which water could be squirted if it emerges from the nozzle and emerges with the nozzle removed.