

Could someone please help with these ? PHYSICS N GIANCOLI ect Chepter TOC 11 12 15...
can you please help me answer theses questions
ect Question 11 0 / 5 pts Light of wavelength 495 nm is incident upon a single slit with width W = 4.3 x 10-4 m. m. The figure below shows the pattern observed on a screen positioned 270 cm from the slits. What is the distance, in cm. Please round your answer to two decimal places 0.008 Question 12 5/5 pts Classes Google Slides - cre... G Question 18 0/3 pts...
could someone help me understand these problems, the
proper steps to solve them please.
1) A person walks first at a constant speed of 1.35 m/s along a straight line from point to point and then back along the line from B to at a constant speed of 0.75 m/s. It takes the person 100s to walk from point @to point . a) What is her average speed over the entire trip? (10 points) b) What is her average velocity...