Afootball player runs 20 meters north of a football field, and then 15 meters east. the total motion lasted 15 seconds. what was his average speed

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).

Aball horizontally thrown from a cliff at 8m/s

What is the specific heat of wood ?