Q1 calculate the threshold wavelength in nm of a metal if

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Reference no: EM13353952

Q1. Calculate the threshold wavelength, in nm, of a metal if that metal emits an electron with a kinetic energy of 6.32 × 10-19 J when illuminated with light that has a frequency of 1.97 × 1015 Hz.

Q2. Standing on the ground 3.3m from the wall of a building, you want to throw a package from your 1.6m shoulder level to someone in a second-floor window 4.1m above the ground. At what speed should the package be thrown to just make it through the window and at what speed should the package be thrown?

1) At what speed should you throw the package so it just barely reaches window?

2) At what angle should you throw the package so it just barely reaches window?

Reference no: EM13353952

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