Calculate the depth of a hydrostatic type oil reservoir if wellhead is located 100 meter above the sea level, the wellhead pressure is 120 kn/m2, oil specific gravity 0.8; density pwater and patm- 101kn/m2 1000 kg/m3;

What are transitions between a liquid and a solid called? identify which way they are transitioning

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum