Hello I need help for these questions (14,15,16) thank you!

14. [-/4 Points] DETAILS SERPSE10 8.4.OP.014.MI. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER A 4.20-kg block is set into motion up an inclined plane with an initial speed of v; = 8.20 m/s (see figure below). The block comes to rest after traveling d = 3.00 m along the plane, which is inclined at an angle of 0 = 30.0 to the horizontal. (a) For this motion, determine the change in the block's kinetic energy. (b) For this motion, determine the change in potential energy of the block-Earth system. (c) Determine the friction force exerted on the block (assumed to be constant). (d) What is the coefficient of kinetic friction? Need Help? Read it Master It 15. [-/2 Points] DETAILS SERPSE10 8.5.OP.016. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER At a bottled water plant, water with a density of 1.00 g/ml passes through a pumping station where it is raised vertically by 5.77 m at the rate of 1,860,000 liters per day. The liquid enters and leaves the pumping station at the same speed and through pipes of equal diameter. (a) Determine the output mechanical power (in W) of the lift station. Ignore any energy loss due to friction. W (b) Assume an electric motor continuously operating with average power 3.70 KW runs the pump. Find its efficiency. Need Help? Read It 16. [-/1 Points] DETAILS SERPSE10 8.5.OP.017. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER A 705-N Marine in basic training climbs a 10.5-m vertical rope at a constant speed in 7.00 s. What is his power output? w Need Help? Read It Watch It