Anegative charged particle of known magnitude q is placed in a uniform electric field of known strength e. what additional information is needed to determine the magnitude of the force on the particle?

a. the distance between the charged plates producing the uniform field.
b. the distance from the nearest plate to the charged particle.
c. the magnitude of the charges producing the field.
d. the mass of the negatively charged particle.
d. no additional information is needed.

Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.