Aphysics instructor wants to produce a double-slit interference pattern large enough for her class to see. for the size of the room, she decides that the distance between successive bright fringes on the screen should be at least 3.00 cm. if the slits have a separation d=0.0200 mm, what is the minimum distance from the slits to the screen when 632.8 nm light from a he-ne light is used?

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.