Aforce of 7.50n is applied to a spring whose spring constant is 0.289 n/cm. find its change in length.

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.

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?