A graduated cylinder is half full of mercury and half full of water. Assume the height of the cylinder is 0.23 m and don't forget about atmospheric pressure. Calculate the pressure at the bottom of a graduated cylinder. (Provide answer to 3 significant digits.)

Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.

Positrons are spontaneously emitted from the nuclei of

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?