Tom stops using a new skin cream for five days to determine if the cream is the cause of a recent rash. what stage of the scientific method is tom using?

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

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?