James and juan were at the highest point in the football stadium, dropping water balloons on people below. many of the balloons did not break, so the boys added more water to the balloons. what impact did adding water have on the balloons' potential energy? a) it had no impact; it just made the balloons bigger. b) the gravitational potential energy increased because the mass increased. c) the gravitational potential energy decreased because the diameter increased. d) the gravitational potential energy remained constant because they did not increase the height.

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

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%)