Many powers are shared between the federal, state, and local…

Many powers are shared between the federal, state, and local governments. Describe (1-3 paragraphs) how an issue area is handled by the different levels of government. Choose ONE of the following: morality policy, social welfare policy, healthcare policy, or education policy.

Coherent light with wavelength 530 nm is incident upon a pai…

Coherent light with wavelength 530 nm is incident upon a pair of slits. The interference pattern produced on a screen 2.0 m from the slits is measured to have a separation between two adjacent bright fringes of 1.8 mm. Next, a laser with an unknown wavelength shines upon these same pair of slits and screen. The interference pattern shows the distance between adjacent bright fringes is 1.4 mm. What is the wavelength of this mystery laser, in nm?