Brad rides his bike 20 km. he covers the distance in 45 minutes (0.75 hours). what is his speed in kilometers per hour? a.15 km/hr b.27 km/hr c.44 km/hr d.9.0 km/hr

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).

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?