Consider the cart on the track above. The vectors shown are NOT necessarily to scale. The angle of the track is 22° and the mass of the cart is 1.6kg, but because of some dirt
on the track, the force of friction is 0.6 N. What is the magnitude of the normal force,
FN, of the track on the cart?
(Use g = -10m/s2, and answer to the
earest 0.1N, but do not include units)

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

Ascientific blank must be testable and capable of being proven false?

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.