When a diver jumps off a diving board into a pool, while in the air, it is easier to somersault while their body is tucked into a ball-like shape and harder while their body is extended?

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.