A50-cm-long spring is suspended from the ceiling. a 270 g mass is connected to the end and held at rest with the spring unstretched. the mass is released and falls, stretching the spring by 24 cm before coming to rest at its lowest point. it then continues to oscillate vertically. part a what is the spring constant?

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

What determines the amount of inertia an object has

The ability to make things happen is also called a. heat b. force c. matter d. energy