A technician directs monochromatic light toward a single slit in an opaque barrier. The light has a wavelength of 500 nm and the slit is 0.180 mm wide. The light that passes through the slit creates a diffraction pattern on a screen, which is 1.60 m from the slit. (a) How wide (in mm) is the central maximum (the central, bright fringe), as measured on the screen?
mm
(b) How wide (in mm) is either of the two first-order bright fringes, as measured on the screen?
mm

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?

What is similar between metals and suspensions