Light of wavelength 200 nm shines on a metal surface that requires 4.20 eV to eject an electron. (a) What is the cutoff wavelength for the metal? (b) What is the stopping potential for the 200 nm light? (c) What is the kinetic energy of the fastest ejected electrons? {295 nm, 2.00 V, 295 nm}

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.