Picture taken from problem 17-98. The spool has a mass of 100 kg and a radius of gyration of kG = 0.3 meters. The coefficients of static and kinetic friction at A are µs = 0.2 and µk = 0.15 respectively. A force P is applied to the rope that is wrapped around the smaller radius of the spool. Determine the largest value of P that can be applied without causing the spool to slip at point A. Hint: if P were any larger than the requested value, the spool would slip.

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.