The imaginary line which passes through the north and south poles, upon which the earth rotates once every 24 hours is called the prime meridian. correct?

Write the correct abbreviation for each metric unit

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.

What is the increase in density of a medium due to wave travel?