Determine the mechanical energy of thsi object: a 1- kg sits on a 10- kg meter high cliff

The 50@kg wheel is subjected to a force of 50 n. if the wheel starts from rest and rolls without slipping, determine its angular velocity after it has rotated 10 revolutions. the radius of gyration of the wheel about its mass center g is kg = 0.3 m.

Matt is driving down 7th street. he drives 150 meters in 18 sec. assuming he doesn’t slow down or speed up, what is his speed?

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%)