Wave optics- double slit interference
a helium neon laser (λ=633nm) illuminates a double slit that is 2m from a screen. the light transmitted from the slits produces an interference pattern with a 3.2mm spacing of successive bright fringes.
question: how will the bright fringe spacing change if the laser is moved farther from the slits, the wavelength is halved, the distance from slit to screen is increased by a factor of 4 and the slit separation is doubled? (circle the answer)
a. no change
b. larger
c. smaller
d. different color

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

it is a negative acceleration