a simple pendulum is shown in several states. in case a the mass is travelling back down to the bottom and is in between the bottom and its max height. in case b the mass is at its max height and has a speed of zero. in case c the ball is at its lowest position.

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s

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).