Throughout this question, assume that the universe the universe only contains matter and a possible cosmological constant. use the definition of the density parameter to show that at any epoch we can write the matter density as e the matter density as male) (1 z)3 ω0ho .

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?

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

If the area of a square has increased by a factor of 16, by how much has each side increased?