Two campers pull a canoe. if the force of friction acting on the canoe is 84 n, then how much work does the two campers need to do to keep the canoe in the middle of the river for a displacement of 50 m?

Determine the maximum r-value of the polar equation r =3+3 cos 0

How does an observation about an object differ from an inference about that object

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.