Millikan measured the electron's charge by observing tiny charged oil drops in an electric field. each drop had a charge imbalance of only a few electrons. the strength of the electric field was adjusted so that the electric and gravitational forces on a drop would balance and the drop would be suspended in air. in this way the charge on the drop could be calculated. the charge was always found to be a small multiple of 1.6e-19 c. find the charge on an oil drop weighing 4.31 multiply. gif 10-14 n and suspended in a downward field of magnitude 3.85 multiply. gif 104 n/c.

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

Akg a of 55 m at an of 11 ? . if is at 98 km/h, be ?

Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.