The early universe was comprised mostly the simplest elements: hydrogen and helium. True or False?

The slope of a velocity time graph over any interval of time gives the during that interval

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.

Aball horizontally thrown from a cliff at 8m/s