What's is the kinetic energy of a .235-kg baseball thrown at 50.0m/s

According to the tide table below what time of day will the highest tide occur?

Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2

How is zig zagging a form of acceleration?