Describe the energy transfers that occur in an electric circular saw that runs from a generator.

Generator possess mechanical energy which is due to kinetic energy and potential energy. So the generator uses mechanical energy to start and by providing the electrical energy it transfers mechanical to electrical energy that occurs in an electric circular saw that runs from a generator. In this mechanism, mechanical energy is converted into electrical energy.  That is how energy transfers in an electic circular that runs a generator.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle