a 5 kg mass 20 kg mass are connected by a light inextensible string which passes over a light frictionless pulley initially the 5 kg mass is held stationary on a horizontal surface whilethe 20 kg mass hangs vertically downwards, 6m above the ground. a, calculate the acceleration of the 20kg mass

Identify some abiotic characteristics of the tundra biome.

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.

In a house all the electrical wires run back to either a bank or a blank