Successive plus and minus sights taken on a downhil line of levels
are listed below. the values represent the horizontal distances
between the instrument and either the plus or minus sights. what
error results from curvature and refraction?
(50,75; 75,150; 25,150; 30,200)ft.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.