A spring has a spring constant of 53 N/m. How much elastic potential energy is stored in the spring when it is compressed by 0.21 m?
A. 1.17 J
R 11.1 J
C. 2.33 J
D. 5.57 J

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.

Why does a collision with an airbag cause less damage than a collision with a steering wheel

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?