Data for the photoelectric effect of silver are given in the table.
Using these data, find the experimentally determined value of Planck's constant, h, and the threshold frequency, ν0, for silver.
I've already answered the first part (h=6.626*10^-34) but I'm stuck on the second
Table: (kind of reproduced because I can't attach a photo)
Column 1: Frequency of incident radiation (10^15) s^(−1)
2.00
2.50
3.50
4.00

Column 2: Kinetic energy of ejected electrons (10^−19 J)
5.90
9.21
12.52
15.84
19.15

Wo small variable-thrust jets are actuated to keep the spacecraft angular velocity about the z-axis constant at ? 0 = 1.16 rad/s as the two telescoping booms are extended from r1 = 1.18 m to r2 = 4.69 m at a constant rate over a period of 124 seconds. the small 19-kg experiment modules at the ends of the booms may be treated as particles, and the mass of the rigid booms is negligible. determine the necessary thrust t for each jet as a function of time where t = 0 is the time when the telescoping action is begun. after you have the general expression for t, answer the questions. show work.