Hi Tutor, can you please help me with questions 16-20. Bold answers and show work so I can understand the process. Thank you and have a great day.

Young Hector launches a 200 gram block uphill on a frictionless ramp which is tilted at 30 degrees with the horizontal, as shown in the Figure. At the instant of its launch, the block is moving uphill at 4.00 m/s. Hector observes as the block travels a distance of 50.0 cm uphill on the ramp. In the following, consider the period of time during which the block moves uphill through the 50.0 cm distance shown in the Figure. For simplicity, assume that g = 9.80 m/ 2 . d (50.0 cm) Vf 4.00 m/s Viz 30 16. Find the work done on the block by the normal force. A. - 0.490 J. B. 1.60 J. C. zero . D. 0.490 J. E. - 1.60 J. 17. Find the work done on the block by gravity, as the block slides 50.0 cm uphill on the ramp. A. 0.490 J. B. 0.980 J. C. zero. D. - 0.490 J. E. - 0.980 J. 18. Find the change in the kinetic energy of the block during the time it takes to travel the distance "d" marked in the Figure above. A. - 1.60 J. B. - 0.490 J. C. zero. D. 0.490 J. E. - 1.11J. 19. At the instant when the block has traveled 50 cm uphill on the ramp, the block's speed is equal to A. 4.00 m/s. B. 2.21 m/s. C. 3.50 cm/s. D. 2.00 m/s. E. 3.33 m/s. 20. True or False: During the time it takes the block to travel the distance "d" shown in the Figure, the change in the gravitational potential energy of the system equals "- mgh"