Doubly charged calcium ions, Ca2+, are released into your bloodstream and flow through your capillaries.

The diameter of a capillary is about 5 μm, calcium ion concentrations are approximately 1 mol/m3, and typical electric current flow due to the Ca2+ ions is around 1.2 nA.

Calculate the drift speed of the calcium ions.

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)

What is the momentum of a 2 kg object moving at 15 meters per second

J. j. thomson’s experiment disproved the theory that an atom