f. You still walked to the right, but for whatever reason, you chose the direction left to be the \( +x \) direction. Keep \( x_{1}=0 \mathrm{~m} \). What changes? g. If you just had the snapshots without the video or actually seeing the walk, could you tell if the walker ever changed speed or direction? and/or direction, but still was at the same positions and times (same snapshots), what results would change?

Look at the electrical diagram. \begin{tabular}{l}\( V=8.6 \mathrm{~V} \) \\ \( I 1=0.3 \mathrm{~A} \) \\ \( I 2=0.5 \mathrm{~A} \) \\ \( I 3=0.2 \mathrm{~A} \) \\ Calculate the total resistance. \\ \hline 8.6 \\ \hline OK. \\ \( \begin{array}{l}V=10.6 \mathrm{~V} \\ I 1=0.9 \mathrm{~A} \\ I 2=0.3 \mathrm{~A} \\ I 3=0.3 \mathrm{~A}\end{array} \) \\ Calculate the total resistance. \\ \hline\end{tabular}

At sporting events the crowd sometimes generates a "wave" that propagates around the stadium. What type of wave is this?

If you increase the speed of a wave on a Slinky by increasing the tension, but keep the same frequency of back-and-forth motion, how does the wavelength change? Multiple Choice

What type of potential energy is due to the position of an object above the Earth's surfack?

\( 8 \Rightarrow 12 \) Se tiene una tubería de \( \Phi=2.0 \mathrm{~m} \) en un punto a 320 m sobre el nivel del mar, el agua posee una velocidad de \( 12.0 \mathrm{~m} / \mathrm{s} \) y una presión de 45 m . El agua sale de la turbina con una velocidad de \( 1.8 \mathrm{~m} / \mathrm{s} \) y a presión atmosférica en un punto a 260 m sobre el nivel de mar. ¿Qué valor tiene la potencia que toma la turbina?