As a pendulum swings back and forth, a. At the endpoints of its swing, its energy is all potential.
B. Kinetic energy is transformed to potential energy.
C. At the lowest part of the swing, all energy is kinetic.
D. All of the above.

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2

What’s #16 asking and how do i solve it?

Which bonds are found inside a water molecule