Well dressed businessman, Brandmart Inn, is pulling a rope aached to a bathroom scale (mass = 15.00 kg) with a force (F) at an angle of 25.00 degrees. On top of the scale is the cash he has made today from sales of his latest app, a program that can predict when Mr. Koski will say something students can actu- ally understand. The money and scale combinaon are moving horizontally towards the right at a con- stant velocity. The mass of the money is 150.0 kg. The scale and the ground beneath it have a coeffi- cient of kinec fricon of .3928. What is the normal force of the money-scale system? How much force is applied to the rope? Draw an FBD of the bathroom scale.

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.