A block of mass 12.0 kg rests on a horizontal surface. The coefficient of static friction between the surfaces is 0.450. What is the maximum possible force that can be applied to the block before it begins to move?

Adouble-slit experiment is performed with light of wavelength 600 nm. the bright interference fringes are spaced 1.8 mm apart on the viewing screen.what will the fringe spacing be if the light is changed to a wavelength of 400 nm? ?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Write a polynomial function with the given zeros x= -1,0,2show your work