Monochromatic light falls on two very narrow slits 0.044 mm apart. successive fringes on a screen 6.40 maway are 8.1 cm apart near the center of the pattern. determine the wavelength of the light.
express your answer to two significant figures and include the appropriate units
determine the frequency of the light.
express your answer to two significant figures and include the appropriate units

The starship enterprise is caught in a time warp and spock is forced to use the primitive techniques of the 20th century to determine the specific heat capacity of an unknown mineral. the 125-g sample was heated to 96.3°c and placed into a calorimeter containing 85.9 g of water at 20.0°c. the heat capacity of the calorimeter was 14.2 j/k. the final temperature in the calorimeter was 24.5°c. what is the specific heat capacity (in j/g°c) of the mineral? enter to 4 decimal places.