The magnitude of the attractive force between two ions, a1+ and b1- at equilibrium is 10e-10 n. determine (a) the interionic distance, (b) the ionic radius of b1- if that for a1+ is 0.374229 nanometers, (c) the magnitude of the repulsive force between the two ions at this position, (d) the value of the coulomb's constant b and (e) the minimum potential energy of the bond. assume n = 7 in coulomb’s law

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%)

Asher cycles 12 miles in 16 hours. what is his speed?

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)