How is water molecule like a magnet?

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

If you put a helium-filled balloon in the refrigerator, what will happen?