If you exert a force of 53 N to walk 8 m up a flight of stairs in 12 seconds, how much power do you use

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

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).