On a typical clear day, the atmospheric electric field points downward and has a magnitude of approximately 100 N/C. Considering both the gravitational and electric forces on a small dust particle of mass 2.0 × 10−15 g that carries a single electron charge, what is the magnitude of acceleration of the dust particle (in m/s2) ? Group of answer choices

Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.