I checked the homework and I posted the numerical answers on the board. I went over selected problems. There will be a quiz on problems 1-4 next class. You can check the full answers here (will be posted on Friday afternoon).
We took a quiz on the roller coaster problem, then learned that the energy used per unit time is power. We then found out who the most powerful student was by completing the powerhouse lab. If you want additional information about power, click here.
HW: Correct WS 2b- quiz next time; finish lab; WS 3
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