If a small motor does 520 J of work to move a toy car 260 m, what force does the engine exert on the car?

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?

Which branches of natural science include the study of an organism that lived 10 million years ago

How is zig zagging a form of acceleration?