In 1909, robert millikan (1868–1953) used his famous 1909 oil drop experiment to estimate the elementary charge. in this experiment, small drops of oil were charged, and an electric field was adjusted to the drops stay suspended. from the required field, the charge on various drops was calculated—they were all whole-number ratios of the elementary charge. the actual analysis has to take into account buoyant forces and other details, but we will simplify it for this problem. assume that the density of the oil used in the experiment is 840 kg/m3, a drop has a radius of 1.75 μm, and a drop has a charge of +8e. what applied electric field is necessary to keep the drop suspended against gravity?
kn/c

upwards downwards

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.

Distinguish between linear momentum and angular momentum