Given a = v1(t) = 4 cos(377t + 17°) v and b = v2(t) = –20 cos 377t v. report your answer so the magnitude is positive and all angles are in the range of negative 180 degrees to positive 180 degrees.

the signal (click to select) v leads (click to select) by

At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.

The higher the astm grain size number, the finer the gran is. a)-true b)-false

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