On Earth, a kid on a trampoline jumps from 1.6 meters to 5.6 meters above the ground. What is the velocity of the kid?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Ablock of mass 1.5 kg slides down an inclined plane that has an angle of 15. if the inclined plane has no friction and the block starts at a height of 3 m, how much kinetic energy does the block have when it reaches the bottom? acceleration due to gravity is g = 9.8 m/s2. a. 6.8 j b. 50.9 j c. 0 j d. 44.1 j