Aresearcher measures the value of the acceleration due to gravity several times and obtains the following results (all in m/s? units): 9.95, 10.10,9.97,9.99, and 10.02 the accepted value for the acceleration due to gravity on earth is 9.81 m/s? questions 1. determine the uncertainty range for this set of data, using any calculation tool at your disposal. record the uncertainty range here with appropriate significant figures and units as discussed in the above pages

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

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%)

Explain how a step-down transformer makes electricity safe for use in homes