The human eye can readily detect wavelengths from about 400 nm to 700 nm. part a if white light illuminates a diffraction grating having 750 lines/mm , over what range of angles does the visible m = 1 spectrum extend?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

Employer informs its employees that it will hold a substantial cash prize drawing for each work group at the end of each month in which no employee in the work group sustains a lost-time injury. tyra reports an injury that she sustained while operating a mechanical power press. tyra did not violate any employer safety rules when she sustained her injury. tyra’s injury requires her to miss work for two days. her employer cancels the cash prize drawing for that month for tyra’s work group because of tyra’s lost-time injury. did the employer misuse an incentive program to retaliate against tyra?