A bar of a material has a length of 7.0 cm, and its cross section is 1.0 cm by 3.0 cm. A student measures the resistance of this bar and finds it to be 0.0014 Ω. What is the resistivity of this material? Use the relationship between resistance and resistivity above. Show your work. (Remember to convert all quantities to their standard SI units.

On a average work day more than work place firs are reorted

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1