The chemical potential energy and thermal kinetic energy in molecules is called . internal energy thermal energy absolute energy mechanical energy

Mechanical energy

Explanation:

Mechanical energy is the sum of both the chemical potential energy and the thermal kinetic energy present in molecules.

These energies, the thermal kinetic energy and the chemical energy can both be put into mechanical work in different forms.

An example is the combustion of gasoline which as the dual effect of raisin the temperature of the gases causing expansion, but also increasing the volume of the present gases pushing out the piston.

Thermal kinetic energy is the energy present in the motion of molecules due to them receiving heat energy, which is a form of mechanical energy

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west