An electron is accelerated from rest through a potential difference ΔV. If the electron reaches a speed of 7.820 × 106 m/s, what is the potential difference? Be sure to include the correct sign (does the electron move through an increase or a decrease in potential?)

Ingrid wrote the hypothesis below. if the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart. what are the variables in her hypothesis?

In this experiment, you will use a track, a toy car, and some washers to explore newton’s first two laws of motion. you will make observations and collect data regarding the motion of these objects. in the space below, write a general scientific question that you will answer by doing this experiment.

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