A water park rider (mass = 20.0 kg) starts from rest at the top of a 48.0-m tall water slide (A). The height at B is 16.0 m. Assuming mechanical energy
conservation, determine the potential energy (PE) and kinetic energy (KE) values
at locations A, B and C. Use g = 10.0 N/kg.

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap