Discuss the changes in potential energy, kinetic energy, and total energy for a skateboarder going up and down on a half pipe (u-shaped) ramp. specially address the energies when the skater is at the highest point, the lowest point, and half-way down the ramp

Identify the parent function that can be used to graph the function f(x)= (1/4x)^3

Answer the questions in the attachment. a rescue helicopter is at point a and a rescue boat is at point e. the helicopter pilot spots boats in distress at points d and c,with angles as marked in the diagram. figure abce is a rectangle. the altitude of the rescue helicopter, represented by ae, is 5000 feet.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?