the toy has a mass of 0.5 kg and moves forward with a velocity of 0.08 m/s how is the momentum of the toy calculated 

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.

How is the ideal mechanical advantage of a wheel and axle calculated?

The amount of potential energy possessed by an elevated object is equal to