What is the work function of the experimental photo-missive material? 0.50 ev -2.9 ev -1.2 ev -2.0 ev

The answer for this exercise is the last option, which is:

The explanation is shown below:

1. The graph shows the Photoelectric effect, which is defined as the ejection of electrons from a solid, this is caused by the incident of ligth. The maximum kinetic energy depends of the frequency of this ligth.

2. You must find the the graph shown in the figure attached to solve the exercise:

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.