Howmuchforcemustbeappliedtoaspring( springconstantof0.8N/m)which is attached to a block of wood (mass = 4.0 kg) in order to compress the spring by 15 cm?

An object's buoyant force and weight mean the same thing. a. trueb. false

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?

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?