Asmall block of mass m slides on a horizontal frictionless surface as it travels around the inside of a hoop of radius r. the coefficient of friction between the block and the wall is mu; therefore, the speed v of the block decreases. in terms of m, r. mu, and v, find expressions for each of the following. b. the block's tangential acceleration dv/dt c. the time required to reduce the speed of the block from an initial value v0 to vo/3

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

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%)

Difference between series and parallel circuits