The wavelength range of the visible spectrum is approximately 400 nm−700 nm. white light falls at normal incidence on a diffraction grating that has 350 slits/mm.

tbh i dont know ether

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

a cold ice-tea.

pour in room temperature or cold water. cover the pitcher and refrigerate. steep white or green tea for 6 to 8 hours; steep black or oolong tea for 8 to 12 hours.jun 28, 2015