Tara goes kayaking at sunrise. She rows 50 feet in 20 seconds. She transfers 100 joules of energy. What is Tara's power?
5 W
10 W
50 W
2W

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Does anyone have the answers to online physics course plato course physics, semester a v3.0

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.