Germanium to which 1024 m-3 ga atoms have been added is an extrinsic semiconductor at room temperature, and virtually all the ga atoms may be thought of as being ionized (i. e., one charge carrier exists for each ga atom). calculate the electrical conductivity of this material in (ω·m)-1 , assuming electron and hole mobilities of 0.26 and 0.020 m2 /(v·s), respectively

Rohit is trying to tune an instrument

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.