Until a train is a safe distance from the station it must travel at 5 m/s. Once the train is on open track it can speed up to
45 ms. If it takes a train 8 seconds to reach 45 nys, what is the acceleration of the train? (Round your answer to the
nearest whole number)
4 m/s?
5 m/s2
6 m/s2
7 m/s?

Aball horizontally thrown from a cliff at 8m/s

Area around a charged object where the objects can exert a force on another charged objects is an electric

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.